What are the cheapest airlines flying from London Heathrow Airport to Ottawa round-trip?

Air Canada, at C$ 578, was found to be the cheapest airline from London Heathrow Airport to Ottawa.Alternate airlines to your destination round-trip include United Airlines and Virgin Atlantic. Users have found that Air Canada is 46% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from London Heathrow Airport to Ottawa one-way?

C$ 691 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Lufthansa and Brussels Airlines, with prices starting from C$ 757 and C$ 1,514, respectively.

What is the cheapest day to fly from London Heathrow Airport to Ottawa?

Travelers seeking maximum savings on their London Heathrow Airport to Ottawa flight should consider departing on Monday at noon when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the cheapest flights from London Heathrow Airport to Ottawa?

Looking for the cheapest flight from London Heathrow Airport to Ottawa? While on average our users pay C$ 1,609, our data indicates the cheapest price to be C$ 575. The most popular route (London Heathrow - Ottawa), is priced around C$ 577.

What are the most reliable airlines from London Heathrow Airport to Ottawa?

The top 3 most reliable airlines when flying from London Heathrow Airport to Ottawa are Air Canada (100%), Aegean Airlines (100%) and Austrian Airlines (100%).

What is the cheapest day to fly round-trip from London Heathrow Airport to Ottawa?

Sunday is generally a great day to depart. Flying on this day could help you save up to 39%.

How far in advance should I book a flight from London Heathrow Airport to Ottawa?

Find a great deal and save up to 23% by booking at least 33 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from London Heathrow Airport to Ottawa within the next two weeks, with the cheapest ticket starting at C$ 983.

What is the cheapest month to fly from London Heathrow Airport to Ottawa?

Due to multiple factors, expect to potentially pay more when booking in August. For low rates, January can be a great choice for travel to Ottawa. Flights to Ottawa from London Heathrow Airport in January are about C$ 1,038 on average during January, but can be found for as low as C$ 695.

What airport do you fly into for flights to Ottawa from London Heathrow?

Located just 10.6 km from the city centre, Ottawa is the airport most travellers will use when flying to Ottawa from London Heathrow. Booking flights from London Heathrow to Ottawa (YOW) should be relatively easy as there are 4 daily inbound flights from London Heathrow from 2 different airlines.

Can I find deals for flights from Heathrow to Ottawa that include hotel bookings?

Yes. In addition to deals on Heathrow to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Heathrow to Ottawa?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Ottawa.

Can I find deals for business class flights from Heathrow to Ottawa?

Yes. Cheapflights offers flight deals from Heathrow to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 490+ Flights from London Heathrow Airport to Ottawa

Cheapflights Tip: The best prices from London Heathrow to Ottawa are usually found in March or February, booked 88 days in advance, depart on a Monday or Thursday and return on a Saturday

Cheap flight deals from Heathrow to Ottawa

Round-trip from	C$ 577
One-way from	C$ 490
Popular in	August
Cheapest in	March
Average price	C$ 975
Good round-trip deal	C$ 845 or less
Good one-way deal	C$ 809 or less

Air Canada
25/4-28/4
4 total stops
27h 52m total
London to Ottawa

Search Deals

20/5
3 total stops
52h 05m total
London to Ottawa

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (C$ 286 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (C$ 53 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Price to beat on a round-trip flight from London Heathrow to Ottawa.

Search Deals

Price to beat on a one-way flight from London Heathrow to Ottawa.

Search Deals

Find flight deals from Heathrow to Ottawa

Cheapest flights from Heathrow to Ottawa
Explore the most affordable flight options available from Heathrow to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 April 2025.

Mon 12/59:30 a.m.LHR - YOW

2 stops15h 45mAir Canada

Wed 21/51:55 p.m.YOW - LHR

2 stops15h 05mAir Canada

Deal found 14/4C$ 578

Tue 22/47:45 a.m.LHR - YOW

2 stops31h 13mUnited Airlines

Wed 14/59:50 a.m.YOW - LHR

2 stops18h 30mUnited Airlines

Deal found 14/4C$ 605

Tue 13/59:00 a.m.LHR - YOW

1 stop11h 05mAir France

Tue 3/65:15 p.m.YOW - LHR

1 stop18h 20mAir France

Deal found 14/4C$ 728

Mon 8/98:30 a.m.LHR - YOW

2 stops18h 34mLufthansa

Mon 15/96:40 p.m.YOW - LHR

1 stop30h 50mLufthansa

Deal found 14/4C$ 802

Tue 1/76:15 a.m.LHR - YOW

1 stop13h 50mMultiple Airlines

Sun 20/75:15 p.m.YOW - LHR

2 stops15h 35mMultiple Airlines

Deal found 14/4C$ 822

Tue 6/56:00 a.m.LHR - YOW

2 stops18h 04mSWISS

Sun 18/51:55 p.m.YOW - LHR

2 stops37h 00mSWISS

Deal found 14/4C$ 833

Thu 24/43:00 p.m.LHR - YOW

2 stops31h 24mAustrian Airlines

Mon 5/57:55 p.m.YOW - LHR

1 stop29h 40mAustrian Airlines

Deal found 14/4C$ 835

Sat 6/96:30 a.m.LHR - YOW

2 stops13h 35mKLM

Sun 14/95:25 p.m.YOW - LHR

2 stops12h 20mKLM

Deal found 14/4C$ 871

Best flights from Heathrow to Ottawa
Discover carefully curated flight deals from Heathrow to Ottawa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 15 April 2025.

Fri 25/48:55 a.m.LHR - YOW

2 stops13h 02mMultiple Airlines

Mon 28/42:10 p.m.YOW - LHR

2 stops14h 50mMultiple Airlines

Deal found 13/4C$ 577

Mon 12/59:30 a.m.LHR - YOW

2 stops15h 45mAir Canada

Wed 21/51:55 p.m.YOW - LHR

2 stops15h 05mAir Canada

Deal found 14/4C$ 578

Sun 11/56:50 a.m.LHR - YOW

2 stops14h 53mUnited Airlines

Sun 18/59:50 a.m.YOW - LHR

2 stops18h 30mUnited Airlines

Deal found 13/4C$ 605

Tue 13/56:15 a.m.LHR - YOW

1 stop13h 50mVirgin Atlantic

Mon 19/55:15 p.m.YOW - LHR

1 stop9h 45mVirgin Atlantic

Deal found 12/4C$ 752

Tue 1/76:15 a.m.LHR - YOW

1 stop13h 50mAir France

Sun 20/75:15 p.m.YOW - LHR

1 stop12h 15mAir France

Deal found 14/4C$ 781

Mon 8/98:30 a.m.LHR - YOW

2 stops18h 34mLufthansa

Mon 15/96:40 p.m.YOW - LHR

1 stop30h 50mLufthansa

Deal found 14/4C$ 802

Tue 6/56:00 a.m.LHR - YOW

2 stops18h 04mSWISS

Sun 18/51:55 p.m.YOW - LHR

2 stops37h 00mSWISS

Deal found 14/4C$ 833

Thu 24/49:05 a.m.LHR - YOW

2 stops37h 19mAustrian Airlines

Mon 5/57:55 p.m.YOW - LHR

1 stop10h 55mAustrian Airlines

Deal found 14/4C$ 835

Sat 6/96:30 a.m.LHR - YOW

2 stops13h 35mKLM

Sun 14/95:25 p.m.YOW - LHR

2 stops12h 20mKLM

Deal found 14/4C$ 871

Wed 25/69:35 a.m.LHR - YOW

2 stops19h 47mDelta

Thu 3/75:55 a.m.YOW - LHR

2 stops44h 20mDelta

Deal found 14/4C$ 1,122

Direct flights from Heathrow to Ottawa
Explore direct flight options from Heathrow to Ottawa based on user searches, and compare prices and availability for your desired travel dates. Data last updated 15 April 2025.

Thu 8/52:05 p.m.LHR - YOW

Nonstop7h 30mAir Canada

Mon 19/56:55 p.m.YOW - LHR

Nonstop6h 35mAir Canada

Deal found 14/4C$ 829

Thu 15/52:05 p.m.LHR - YOW

Nonstop7h 30mLufthansa

Thu 22/56:55 p.m.YOW - LHR

Nonstop6h 35mLufthansa

Deal found 14/4C$ 849

Sat 28/612:40 p.m.LHR - YOW

Nonstop7h 30mMultiple Airlines

Sat 5/79:00 p.m.YOW - LHR

Nonstop6h 35mMultiple Airlines

Deal found 14/4C$ 1,018

Last-minute flights from Heathrow to Ottawa
Discover last-minute flight deals from Heathrow to Ottawa. Data last updated 15 April 2025 and is based on user searches.

Sat 19/49:30 a.m.LHR - YOW

2 stops15h 45mAir Canada

Wed 7/59:05 a.m.YOW - LHR

1 stop19h 55mAir Canada

Deal found 14/4C$ 660

Sun 20/48:30 a.m.LHR - YOW

2 stops18h 05mUnited Airlines

Sun 27/410:25 a.m.YOW - LHR

2 stops20h 00mUnited Airlines

Deal found 13/4C$ 602

Mon 21/49:30 a.m.LHR - YOW

2 stops19h 14mLufthansa

Tue 29/44:45 p.m.YOW - LHR

1 stop8h 45mLufthansa

Deal found 14/4C$ 810

Mon 21/49:30 a.m.LHR - YOW

2 stops19h 14mLufthansa

Mon 28/44:45 p.m.YOW - LHR

1 stop12h 15mLufthansa

Deal found 14/4C$ 810

Tue 22/47:45 a.m.LHR - YOW

2 stops31h 13mUnited Airlines

Wed 14/59:50 a.m.YOW - LHR

2 stops18h 30mUnited Airlines

Deal found 14/4C$ 605

Tue 22/412:05 p.m.LHR - YOW

1 stop12h 14mMultiple Airlines

Sat 26/46:00 a.m.YOW - LHR

2 stops19h 20mMultiple Airlines

Deal found 14/4C$ 1,273

Tue 22/410:15 a.m.LHR - YOW

2 stops18h 29mLOT

Sat 26/44:00 p.m.YOW - LHR

2 stops25h 00mLOT

Deal found 14/4C$ 1,763

Thu 24/43:00 p.m.LHR - YOW

2 stops31h 24mAustrian Airlines

Mon 5/57:55 p.m.YOW - LHR

1 stop29h 40mAustrian Airlines

Deal found 14/4C$ 835

Thu 24/47:30 p.m.LHR - YOW

2 stops27h 39mAustrian Airlines

Mon 5/57:55 p.m.YOW - LHR

1 stop32h 40mAustrian Airlines

Deal found 14/4C$ 835

Fri 25/48:55 a.m.LHR - YOW

2 stops13h 02mMultiple Airlines

Mon 28/42:10 p.m.YOW - LHR

2 stops14h 50mMultiple Airlines

Deal found 13/4C$ 577

Sun 4/56:30 a.m.LHR - YOW

2 stops13h 35mKLM

Tue 3/65:15 p.m.YOW - LHR

2 stops12h 30mKLM

Deal found 14/4C$ 1,157

Tue 6/56:40 p.m.LHR - YOW

2 stops51h 24mSWISS

Sun 18/53:55 p.m.YOW - LHR

2 stops35h 00mSWISS

Deal found 14/4C$ 833

One-way flights from Heathrow to Ottawa
Search for one-way flight options from Heathrow to Ottawa. Find affordable one-way fares based on user searches. Data last updated 15 April 2025.

Tue 20/56:20 a.m.LHR - YOW

3 stops52h 05mMultiple Airlines

Deal found 13/4C$ 490

Thu 22/52:10 p.m.LHR - YOW

1 stop15h 32mWestJet

Deal found 13/4C$ 691

Thu 1/52:05 p.m.LHR - YOW

Nonstop7h 30mLufthansa

Deal found 13/4C$ 757

Fri 1/811:05 a.m.LHR - YOW

2 stops33h 00mBrussels Airlines

Deal found 14/4C$ 1,514

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 25/4

8:55 a.m.-4:57 p.m.

2 stops13h 02m

Ottawa

Mon 28/4

2:10 p.m.-10:00 a.m.

2 stops14h 50m

C$ 577

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Mon 12/5

9:30 a.m.-8:15 p.m.

2 stops15h 45m

Ottawa

Wed 21/5

1:55 p.m.-10:00 a.m.

2 stops15h 05m

C$ 578

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 7/5

8:40 a.m.-9:58 a.m.

2 stops30h 18m

Ottawa

Fri 16/5

6:30 a.m.-7:15 a.m.

2 stops19h 45m

C$ 603

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 13/5

6:15 a.m.-3:05 p.m.

1 stop13h 50m

Ottawa

Mon 19/5

5:15 p.m.-8:00 a.m.

1 stop9h 45m

C$ 752

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 1/7

6:15 a.m.-3:05 p.m.

1 stop13h 50m

Ottawa

Sun 20/7

5:15 p.m.-10:30 a.m.

1 stop12h 15m

C$ 781

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 24/4

10:30 a.m.-11:44 p.m.

2 stops18h 14m

Ottawa

Mon 28/4

4:45 p.m.-10:00 a.m.

1 stop12h 15m

C$ 810

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 6/5

6:40 p.m.-5:04 p.m.

2 stops51h 24m

Ottawa

Sun 18/5

3:55 p.m.-7:55 a.m.

2 stops35h 00m

C$ 833

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 24/4

7:30 p.m.-6:09 p.m.

2 stops27h 39m

Ottawa

Mon 5/5

7:55 p.m.-9:35 a.m.

1 stop32h 40m

C$ 835

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 1/7

6:30 a.m.-3:05 p.m.

2 stops13h 35m

Ottawa

Sun 20/7

5:15 p.m.-1:50 p.m.

2 stops15h 35m

C$ 903

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 23/5

8:10 p.m.-12:22 a.m.

2 stops33h 12m

Ottawa

Mon 16/6

5:55 a.m.-6:25 a.m.

2 stops19h 30m

C$ 1,122

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/4

Showing 1-10 of 13 results

Best time to book a flight from Heathrow to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Heathrow with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Ottawa

How far ahead should I book a flight from London Heathrow Airport to Ottawa?

The price you pay for your flight from London Heathrow Airport to Ottawa may vary depending on when you book. For the best chance of a lower fare, look to book 88 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from London Heathrow Airport to Ottawa?

Currently, October is the cheapest month in which you can book a flight from London Heathrow Airport to Ottawa (average of C$ 224). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of C$ 326). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to YOW?

It’s typically best to fly out from London Heathrow Airport to Ottawa at noon. Doing so could potentially save you 10% on the flight price compared to flying in the afternoon, which is usually more expensive.

Rainfall in Ottawa by month

In terms of precipitation, rainfall in Ottawa ranges from 50.0 - 93.0 mm per month. June is typically the wettest month, when rainfall can reach 93.0 mm. February is typically the driest time to visit Ottawa when rainfall is around 50.0 mm.

Temperature in Ottawa by month

If weather is an important factor for your trip to Ottawa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -10.0 C).

Reviews of airlines servicing Ottawa

See what other customers who have flown with Delta, KLM and Austrian Airlines from London to Ottawa have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,917 reviews

Check prices

Reviews

1 / 20

6.0

Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

Delta

8.0

Very good

7,917 reviews

Delta

8.0

Very good

7,917 reviews

Check prices

Reviews

1 / 20

6.0

Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

KLM

7.8

Good

1,323 reviews

Delta

8.0

Very good

7,917 reviews

Check prices

Reviews

1 / 20

6.0

Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

Austrian Airlines

7.6

Good

775 reviews

Delta

8.0

Very good

7,917 reviews

Check prices

Reviews

1 / 20

6.0

Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

Air France

7.5

Good

1,433 reviews

Delta

8.0

Very good

7,917 reviews

Check prices

Reviews

1 / 20

6.0

Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

SWISS

7.5

Good

1,578 reviews

Delta

8.0

Very good

7,917 reviews

Check prices

Reviews

1 / 20

6.0

Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

Related info for your journey

What airport do you fly into for flights to Ottawa from London Heathrow?
Located just 10.6 km from the city centre, Ottawa is the airport most travellers will use when flying to Ottawa from London Heathrow. Booking flights from London Heathrow to Ottawa (YOW) should be relatively easy as there are 4 daily inbound flights from London Heathrow from 2 different airlines.
What are the cheapest airlines flying from London Heathrow Airport to Ottawa round-trip?
Air Canada, at C$ 578, was found to be the cheapest airline from London Heathrow Airport to Ottawa.Alternate airlines to your destination round-trip include United Airlines and Virgin Atlantic. Users have found that Air Canada is 46% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from London Heathrow Airport to Ottawa one-way?
C$ 691 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Lufthansa and Brussels Airlines, with prices starting from C$ 757 and C$ 1,514, respectively.
What are the most reliable airlines from London Heathrow Airport to Ottawa?
The top 3 most reliable airlines when flying from London Heathrow Airport to Ottawa are Air Canada (100%), Aegean Airlines (100%) and Austrian Airlines (100%).
What are the cheapest flights from London Heathrow Airport to Ottawa?
Looking for the cheapest flight from London Heathrow Airport to Ottawa? While on average our users pay C$ 1,609, our data indicates the cheapest price to be C$ 575. The most popular route (London Heathrow - Ottawa), is priced around C$ 577.
Can I find deals for flights from Heathrow to Ottawa that include hotel bookings?
Yes. In addition to deals on Heathrow to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Heathrow to Ottawa?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Ottawa.
Can I find deals for business class flights from Heathrow to Ottawa?
Yes. Cheapflights offers flight deals from Heathrow to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London Heathrow Airport to Ottawa?
Currently, October is the cheapest month in which you can book a flight from London Heathrow Airport to Ottawa (average of C$ 224). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of C$ 326). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Prescott

Brockville

Wakefield

Lanark

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Alternative routes for Heathrow to Ottawa

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Direct flights to Ontario

Direct flights to Ottawa

Direct flights to Toronto

Direct flights to Thunder Bay

Direct flights to London

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Direct flights to Timmins

Direct flights to Sudbury

Direct flights to Sault Ste Marie

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Direct flights to Red Lake

Direct flights to Moosonee

Direct flights to Montreal

Direct flights to Fort Frances

Other flights to Ottawa

Top 2 airlines flying from Heathrow to Ottawa

Airline	Cheapest	Average	Flexibility	On-time
Air France	CheapestC$ 739	AverageC$ 918	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Air Canada	CheapestC$ 827	AverageC$ 1,055	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights

Fly with Cheapflights

How does Cheapflights help users find flights from Heathrow to Ottawa?

When you search for this flight from Heathrow to Ottawa, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Ottawa?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Ottawa for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Heathrow to Ottawa with no change fees?

Yes! Cheapflights helps users easily find flights from Heathrow to Ottawa with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Ottawa become cheaper?

Not ready to book yet? You can track prices for flights from Heathrow to Ottawa on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from London Heathrow Airport to Ottawa from C$ 490

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London Heathrow to Ottawa are usually found in March or February, booked 88 days in advance, depart on a Monday or Thursday and return on a Saturday

Cheap flight deals from Heathrow to Ottawa

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Heathrow to Ottawa

Cheapest flights from Heathrow to OttawaExplore the most affordable flight options available from Heathrow to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 April 2025.

Explore the most affordable flight options available from Heathrow to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 April 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Ottawa that are best for you.

Best time to book a flight from Heathrow to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Heathrow with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Ottawa

How far ahead should I book a flight from London Heathrow Airport to Ottawa?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Ottawa. Price data was last updated on 11 April 2025.

What is the cheapest month to book a flight from London Heathrow Airport to Ottawa?

What is the cheapest time of day to fly from LHR to YOW?

Find hourly flight availability from Heathrow to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 April 2025.

Rainfall in Ottawa by month

Plan your trip to Ottawa by taking into account the average rainfall totals by month.

Temperature in Ottawa by month

Plan your trip to Ottawa by taking into account the average temperature totals by month.

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ottawa. Reviews last updated 15 April 2025.

See what other customers who have flown with Delta, KLM and Austrian Airlines from London to Ottawa have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Ottawa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Ottawa from London Heathrow?

What are the cheapest airlines flying from London Heathrow Airport to Ottawa round-trip?

What are the cheapest airlines to fly from London Heathrow Airport to Ottawa one-way?

What are the most reliable airlines from London Heathrow Airport to Ottawa?

What are the cheapest flights from London Heathrow Airport to Ottawa?

Can I find deals for flights from Heathrow to Ottawa that include hotel bookings?

How can I find direct flights from Heathrow to Ottawa?

Can I find deals for business class flights from Heathrow to Ottawa?

What is the cheapest month to book a flight from London Heathrow Airport to Ottawa?

Travelling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Ottawa

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Top 2 airlines flying from Heathrow to Ottawa

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Cheapest flights from Heathrow to Ottawa
Explore the most affordable flight options available from Heathrow to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 April 2025.