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Cheap flights from London Heathrow Airport to Ottawa from C$ 507

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 21/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YOW
25 Feb — 4 Mar1
1 adult

The best prices from London Heathrow to Ottawa are usually found in February or March, booked 82 days in advance, depart on a Monday or Wednesday and return on a Friday

Cheap flight deals from Heathrow to Ottawa

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Ottawa (YOW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 20 February 2025.

Round-trip from

C$ 729

One-way from

C$ 507

Popular in

August

Cheapest in

February

Average price

C$ 960

Good round-trip deal

C$ 984 or less

Good one-way deal

C$ 1,076 or less
Air France
  • Air France
  • 9/5-12/5
  • 2 total stops
  • 29h 52m total
  • London to Ottawa
21/5
  • 21/5
  • 2 total stops
  • 23h 07m total
  • London to Ottawa
Highest demand for flights based on searches. 13% potential increase in price (C$ 242 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease (C$ 50 potential savings vs. average RT price).
Average for round-trip flights in February 2025
Price to beat on a round-trip flight from London Heathrow to Ottawa.
Price to beat on a one-way flight from London Heathrow to Ottawa.

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 20 February 2025.

Fri 9/55:50 p.m.LHR - YOW
1 stop11h 32mMultiple Airlines
Mon 12/55:15 p.m.YOW - LHR
1 stop18h 20mMultiple Airlines
Deal found 19/2C$ 729
Mon 3/32:45 p.m.LHR - YOW
1 stop29h 25mVirgin Atlantic
Mon 10/36:20 p.m.YOW - LHR
1 stop15h 25mVirgin Atlantic
Deal found 19/2C$ 744
Fri 9/55:50 p.m.LHR - YOW
1 stop11h 32mKLM
Mon 12/55:15 p.m.YOW - LHR
2 stops12h 30mKLM
Deal found 19/2C$ 773
Tue 25/29:00 a.m.LHR - YOW
1 stop11h 10mAir France
Mon 31/35:15 p.m.YOW - LHR
1 stop15h 30mAir France
Deal found 19/2C$ 804
Thu 20/39:00 a.m.LHR - YOW
1 stop11h 56mAir Canada
Thu 27/32:45 p.m.YOW - LHR
1 stop12h 25mAir Canada
Deal found 20/2C$ 810
Tue 22/47:25 a.m.LHR - YOW
2 stops14h 59mLufthansa
Wed 14/58:55 p.m.YOW - LHR
1 stop8h 05mLufthansa
Deal found 20/2C$ 818
Tue 13/56:40 p.m.LHR - YOW
2 stops31h 29mSWISS
Sun 18/51:55 p.m.YOW - LHR
2 stops22h 55mSWISS
Deal found 20/2C$ 884
Wed 2/47:25 a.m.LHR - YOW
2 stops21h 28mUnited Airlines
Thu 10/46:33 a.m.YOW - LHR
2 stops18h 22mUnited Airlines
Deal found 19/2C$ 895
Mon 19/56:50 a.m.LHR - YOW
2 stops11h 55mBrussels Airlines
Sun 25/53:55 p.m.YOW - LHR
2 stops24h 00mBrussels Airlines
Deal found 19/2C$ 935
Sat 29/36:00 a.m.LHR - YOW
2 stops17h 22mAustrian Airlines
Sat 12/44:00 p.m.YOW - LHR
1 stop14h 50mAustrian Airlines
Deal found 18/2C$ 1,038

Find flights from Heathrow to Ottawa within your budget

Customize your flight search to find flights from Heathrow to Ottawa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 20 February 2025.

Fly from

Heathrow

Fly to

Ottawa

Route

Depart

Return

Price

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 9/5

5:50 p.m.-12:22 a.m.

1 stop11h 32m

Ottawa

Mon 12/5

5:15 p.m.-4:35 p.m.

1 stop18h 20m

C$ 729

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Mon 3/3

2:45 p.m.-3:10 p.m.

1 stop29h 25m

Ottawa

Mon 10/3

6:20 p.m.-1:45 p.m.

1 stop15h 25m

C$ 744

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 9/5

5:50 p.m.-12:22 a.m.

1 stop11h 32m

Ottawa

Mon 12/5

5:15 p.m.-10:45 a.m.

2 stops12h 30m

C$ 773

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 20/3

9:00 a.m.-4:56 p.m.

1 stop11h 56m

Ottawa

Thu 27/3

2:45 p.m.-7:10 a.m.

1 stop12h 25m

C$ 810

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 22/4

7:25 a.m.-5:24 p.m.

2 stops14h 59m

Ottawa

Wed 14/5

8:55 p.m.-10:00 a.m.

1 stop8h 05m

C$ 818

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Mon 2/6

5:35 p.m.-3:05 p.m.

1 stop26h 30m

Ottawa

Thu 12/6

5:15 p.m.-4:35 p.m.

1 stop18h 20m

C$ 860

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 13/5

6:40 p.m.-9:09 p.m.

2 stops31h 29m

Ottawa

Sun 18/5

1:55 p.m.-5:50 p.m.

2 stops22h 55m

C$ 884

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 2/4

7:25 a.m.-11:53 p.m.

2 stops21h 28m

Ottawa

Thu 10/4

6:33 a.m.-5:55 a.m.

2 stops18h 22m

C$ 895

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 30/5

6:50 a.m.-1:45 p.m.

2 stops11h 55m

Ottawa

Sat 7/6

7:55 p.m.-6:35 a.m.

1 stop29h 40m

C$ 925

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sat 29/3

6:00 a.m.-7:22 p.m.

2 stops17h 22m

Ottawa

Sat 12/4

4:00 p.m.-11:50 a.m.

1 stop14h 50m

C$ 1,038

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/2

Showing 1-10 of 16 results
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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.

Travel insights for flights from Heathrow to Ottawa

Get recent, data-driven insights about flights from Heathrow to Ottawa including ideal travel times, pricing trends, and more.

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 14 February 2025.

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 82 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 March is currently the most expensive (average of C$ 329). 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?

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 20 February 2025.

It’s typically best to fly out from London Heathrow Airport to Ottawa at noon. Doing so could potentially save you 22% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Ottawa by month

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

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

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 20 February 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.

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20

6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

8.0
Very good

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20

6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20

6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20

6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20

6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20

6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

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?

    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 0 daily inbound flights from London Heathrow from 2 different airlines.

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

    Virgin Atlantic, at C$ 744, was found to be the cheapest airline from London Heathrow Airport to Ottawa.Alternate airlines to your destination round-trip include KLM and Air Canada. Users have found that Virgin Atlantic is 33% 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$ 598 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 Aer Lingus, with prices starting from C$ 926 and C$ 959, respectively.

  • 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$ 1,906, our data indicates the cheapest price to be C$ 975. The most popular route (London Heathrow - Ottawa), is priced around C$ 698.

  • 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 March is currently the most expensive (average of C$ 329). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Gatineau
Perth
Smiths Falls
Prescott
Brockville
Wakefield
Lanark

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Heathrow to Ottawa

Discover the top 2 airlines that operate flights from Heathrow to Ottawa. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 20 February 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapestC$ 819AverageC$ 1,010FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air CanadaCheapestC$ 963AverageC$ 1,164FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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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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