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Cheap flights from Ottawa to London Heathrow Airport from C$ 313

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 26/2. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LHR
22 Jan — 29 Jan1
1 adult

The best prices from Ottawa to London Heathrow are usually found in January or February, booked 54 days in advance, depart on a Tuesday or Wednesday and return on a Saturday

Cheap flight deals from Ottawa to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Heathrow (LHR). 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 17 January 2025.

Round-trip from

C$ 831

One-way from

C$ 313

Popular in

December

Cheapest in

January

Average price

C$ 1,055
Virgin Atlantic
  • Virgin Atlantic
  • 18/2-25/2
  • 2 total stops
  • 29h 25m total
  • Ottawa to London
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26/2
  • 26/2
  • 2 total stops
  • 23h 35m total
  • Ottawa to London
Search Deals
High demand for flights, 1% potential price rise
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Best time to find cheap flights, 2% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from Ottawa to Heathrow

Cheapest flights from Ottawa to Heathrow
Explore the most affordable flight options available from Ottawa to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Thu 23/15:20 p.m.YOW - LHR
1 stop12h 10mAir France
Thu 30/16:20 a.m.LHR - YOW
1 stop13h 50mAir France
Deal found 16/1C$ 831
Mon 20/15:20 p.m.YOW - LHR
1 stop12h 10mVirgin Atlantic
Mon 27/16:20 a.m.LHR - YOW
1 stop13h 50mVirgin Atlantic
Deal found 16/1C$ 832
Tue 18/25:20 p.m.YOW - LHR
2 stops12h 25mMultiple Airlines
Tue 25/26:20 a.m.LHR - YOW
1 stop13h 50mMultiple Airlines
Deal found 16/1C$ 861
Tue 18/25:20 p.m.YOW - LHR
2 stops12h 25mKLM
Tue 25/26:30 a.m.LHR - YOW
2 stops13h 40mKLM
Deal found 16/1C$ 893
Sat 3/59:00 p.m.YOW - LHR
Nonstop6h 35mLufthansa
Sat 24/512:40 p.m.LHR - YOW
Nonstop7h 20mLufthansa
Deal found 16/1C$ 1,005
Fri 14/25:35 p.m.YOW - LHR
1 stop22h 00mAir Canada
Fri 21/23:00 p.m.LHR - YOW
1 stop23h 42mAir Canada
Deal found 15/1C$ 1,008
Mon 24/210:30 a.m.YOW - LHR
2 stops16h 55mUnited Airlines
Fri 28/37:40 a.m.LHR - YOW
2 stops34h 55mUnited Airlines
Deal found 15/1C$ 1,066
Thu 23/19:35 p.m.YOW - LHR
3 stops34h 15mWestJet
Thu 30/12:50 p.m.LHR - YOW
2 stops19h 43mWestJet
Deal found 16/1C$ 1,078
Sun 2/34:00 p.m.YOW - LHR
1 stop11h 30mAustrian Airlines
Sun 9/37:25 p.m.LHR - YOW
2 stops27h 57mAustrian Airlines
Deal found 16/1C$ 1,144
Sun 2/34:00 p.m.YOW - LHR
2 stops16h 00mSWISS
Sun 9/31:45 p.m.LHR - YOW
2 stops35h 52mSWISS
Deal found 16/1C$ 1,235

Find flights from Ottawa to Heathrow within your budget

Customize your flight search to find flights from Ottawa to Heathrow 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 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Tue 18/2

5:20 p.m.-1:45 p.m.

1 stop15h 25m

London Heathrow

Tue 25/2

9:00 a.m.-3:10 p.m.

1 stop11h 10m

C$ 831

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Sun 16/2

5:20 p.m.-8:00 a.m.

1 stop9h 40m

London Heathrow

Mon 24/2

9:00 a.m.-3:10 p.m.

1 stop11h 10m

C$ 832

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Tue 18/2

5:20 p.m.-10:45 a.m.

2 stops12h 25m

London Heathrow

Tue 25/2

6:20 a.m.-3:10 p.m.

1 stop13h 50m

C$ 861

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Tue 18/2

5:20 p.m.-10:45 a.m.

2 stops12h 25m

London Heathrow

Tue 25/2

6:30 a.m.-3:10 p.m.

2 stops13h 40m

C$ 893

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Sat 3/5

9:00 p.m.-8:35 a.m.

Nonstop6h 35m

London Heathrow

Sat 24/5

12:40 p.m.-3:00 p.m.

Nonstop7h 20m

C$ 1,005

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Fri 14/2

5:35 p.m.-8:35 p.m.

1 stop22h 00m

London Heathrow

Fri 21/2

3:00 p.m.-9:42 a.m.

1 stop23h 42m

C$ 1,008

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Fri 28/2

8:10 p.m.-12:50 p.m.

2 stops59h 40m

London Heathrow

Tue 4/3

9:00 a.m.-4:48 p.m.

2 stops36h 48m

C$ 1,025

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Mon 24/2

10:30 a.m.-8:25 a.m.

2 stops16h 55m

London Heathrow

Fri 28/3

7:40 a.m.-2:35 p.m.

2 stops34h 55m

C$ 1,066

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Sun 2/3

4:00 p.m.-8:30 a.m.

1 stop11h 30m

London Heathrow

Sun 9/3

7:25 p.m.-7:22 p.m.

2 stops27h 57m

C$ 1,144

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Sun 2/3

4:00 p.m.-1:00 p.m.

2 stops16h 00m

London Heathrow

Sun 9/3

1:45 p.m.-9:37 p.m.

2 stops35h 52m

C$ 1,235

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/1

Showing 1-10 of 15 results
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Best time to book a flight from Ottawa to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Ottawa 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 Ottawa to Heathrow

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

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

Use this chart to determine the optimal time to book a round-trip flight from Ottawa to Heathrow. Price data was last updated on 10 January 2025.

The best time to book flights from Ottawa to London Heathrow Airport is 54 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Ottawa to London Heathrow Airport (average of C$ 560). Flying from Ottawa to London Heathrow Airport in July is currently the most expensive (average of C$ 874). 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 YOW to LHR?

Find hourly flight availability from Ottawa to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 January 2025.

It’s typically best to fly out from Ottawa to London Heathrow Airport in the afternoon. Doing so could potentially save you 4% on the flight price compared to flying in the evening, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Ottawa to Heathrow. Price data was last updated on 16 December 2024.

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

Rainfall in Heathrow by month

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

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

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

If weather is an important factor for your trip to London Heathrow Airport, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 17 January 2025.
See what other customers who have flown with KLM, WestJet and Air Canada from Ottawa to London have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,339 reviews
Check prices

Food

7.3

Overall

7.8

Crew

8.4

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,339 reviews
KLM
7.8
Good
1,339 reviews
Check prices

Food

7.3

Overall

7.8

Crew

8.4

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Austrian Airlines
7.6
Good
786 reviews
KLM
7.8
Good
1,339 reviews
Check prices

Food

7.3

Overall

7.8

Crew

8.4

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

SWISS
7.5
Good
1,598 reviews
KLM
7.8
Good
1,339 reviews
Check prices

Food

7.3

Overall

7.8

Crew

8.4

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Virgin Atlantic
7.5
Good
664 reviews
KLM
7.8
Good
1,339 reviews
Check prices

Food

7.3

Overall

7.8

Crew

8.4

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Air France
7.4
Good
1,487 reviews
KLM
7.8
Good
1,339 reviews
Check prices

Food

7.3

Overall

7.8

Crew

8.4

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Related info for your journey

Find useful and relevant information for your journey from Ottawa to Heathrow. 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 from for flights from Ottawa to London Heathrow?

    Most people fly from Ottawa (YOW) if they book a flight from Ottawa to London Heathrow. On average, Ottawa has 0 outbound flights to London Heathrow per day from 4 airlines. Ottawa is conveniently located just 10.6 km from Ottawa’s city centre.

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

    Cheapflights users have booked flights from Ottawa to London Heathrow Airport round-trip from C$ 831. Other airlines that can offer you cheap pricing are KLM, from C$ 893, and Air France, from C$ 928. Virgin Atlantic is 29% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airlines for a one-way flight from Ottawa to London Heathrow Airport are WestJet (C$ 344), Turkish Airlines (C$ 983), and Air Canada (C$ 996).

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

    On average you can expect to pay C$ 1,128 for a flight from Ottawa to London Heathrow Airport. The cheapest flight overall is C$ 935 while the most popular route, (Ottawa - London Heathrow) is currently priced at C$ 796.

  • Where are the most common layover locations when flying from Ottawa to London Heathrow Airport?

    Most of the time, Ottawa to London Heathrow Airport flights that have layovers will stop in Montreal.

  • What are some popular things to do or see while on a layover in Montreal?

    The majority of Montreal visitors spend their time at Centre Bell, Vieux-Port de Montréal, and Notre-Dame Basilica. Travelers on a layover in Montreal can visit Centre Bell, Vieux-Port de Montréal, and Notre-Dame Basilica, by traveling 14.6 km, 16.2 km, and 15.9 km, respectively after landing at Montreal Pierre Elliott Trudeau Intl. Those looking to explore during their layover in Montreal can rent a car from Montreal Pierre Elliott Trudeau Intl for about C$ 44 per day.

  • Where are the least popular layover locations for Ottawa to London Heathrow Airport flights?

    Flights departing from Ottawa and landing in London Heathrow Airport layover in Toronto least frequently.

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

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

  • How can I find direct flights from Ottawa to Heathrow?

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

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

    Yes. Cheapflights offers flight deals from Ottawa to Heathrow 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 Ottawa to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Ottawa to London Heathrow Airport (average of C$ 560). Flying from Ottawa to London Heathrow Airport in July is currently the most expensive (average of C$ 874). 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 Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Brentford
Hounslow
Slough
Luton
Milton Keynes
Romford
Watford
Bedford
Bromley
Southall

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Fly from Ottawa to Heathrow on these airlines

Choose from the following airlines for your flight from Ottawa to Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 17 January 2025.
Air Canada flights from Ottawa to London Heathrow
Lufthansa flights from Ottawa to London Heathrow

Top 4 airlines flying from Ottawa to Heathrow

Discover the top 4 airlines that operate flights from Ottawa to Heathrow. 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 17 January 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapestC$ 762AverageC$ 924FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air FranceCheapestC$ 773AverageC$ 974FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air CanadaCheapestC$ 1,011AverageC$ 1,170FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 1,013AverageC$ 1,235FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

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

When you search for this flight from Ottawa to Heathrow, 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 Ottawa to Heathrow?

Millions of users choose and trust Cheapflights to book the best flight deals from Ottawa to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes, we can. To see specific flights from Ottawa to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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