Cheap flights from London Heathrow Airport to Ottawa from £250

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 21/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YOW
12 Feb — 19 Feb1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Ottawa are usually found in March or April, booked 89 days in advance, depart on a Friday or Monday and return on a Monday

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 13 January 2026.

Round-trip from

£439

One-way from

£250

Popular in

August

Cheapest in

March

Average price

£557

Good round-trip deal

£480 or less

Good one-way deal

£806 or less
Air Canada
  • Air Canada
  • 5/6-3/7
  • 3 total stops
  • 26h 21m total
  • London to Ottawa
21/4
  • 21/4
  • 2 total stops
  • 49h 09m total
  • London to Ottawa
Highest demand for flights based on searches. 11% potential increase in price (£53 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Average for round-trip flights in January 2026
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

Enter your travel dates to find the best prices.

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 13 January 2026.

Fri 5/612:40
LHR
-
YOW
1 stop10h 53m
Air Canada
Fri 3/718:25
YOW
-
LHR
1 stop10h 35m
Air Canada
Deal found 12/1£439
Tue 17/306:30
LHR
-
YOW
2 stops13h 40m
KLM
Tue 24/318:20
YOW
-
LHR
2 stops15h 30m
KLM
Deal found 11/1£441
Thu 20/815:00
LHR
-
YOW
1 stop29h 00m
Virgin Atlantic
Thu 3/917:15
YOW
-
LHR
1 stop18h 20m
Virgin Atlantic
Deal found 11/1£442
Fri 11/906:30
LHR
-
YOW
2 stops13h 35m
KLM
Fri 2/1017:15
YOW
-
LHR
2 stops12h 30m
KLM
Deal found 12/1£443
Fri 13/212:00
LHR
-
YOW
Nonstop7h 30m
Air Canada
Sat 21/220:25
YOW
-
LHR
2 stops19h 10m
Air Canada
Deal found 10/1£446
Wed 25/213:30
LHR
-
YOW
2 stops16h 09m
Multiple Airlines
Sun 1/315:05
YOW
-
LHR
1 stop12h 25m
Multiple Airlines
Deal found 11/1£450
Fri 6/214:45
LHR
-
YOW
2 stops14h 54m
Air France
Sun 15/217:20
YOW
-
LHR
1 stop12h 10m
Air France
Deal found 12/1£451
Sat 20/619:30
LHR
-
YOW
2 stops31h 40m
Multiple Airlines
Sat 4/719:15
YOW
-
LHR
1 stop9h 45m
Multiple Airlines
Deal found 11/1£453
Sun 1/211:45
LHR
-
YOW
2 stops17h 54m
Multiple Airlines
Fri 20/217:20
YOW
-
LHR
1 stop18h 15m
Multiple Airlines
Deal found 12/1£455
Sun 8/206:50
LHR
-
YOW
2 stops15h 51m
Air Canada
Sun 15/210:30
YOW
-
LHR
2 stops15h 40m
Air Canada
Deal found 12/1£456
Thu 3/909:30
LHR
-
YOW
Nonstop7h 55m
Air Canada
Sat 19/921:55
YOW
-
LHR
2 stops18h 05m
Air Canada
Deal found 10/1£457

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 13 January 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Ottawa that are best for you.

Fly from

Heathrow

Fly to

Ottawa

Route

Depart

Return

Price

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 17/3

06:30-16:10

2 stops13h 40m

Ottawa

Tue 24/3

18:20-13:50

2 stops15h 30m

£441

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 13/2

09:00-09:41

2 stops29h 41m

Ottawa

Sat 21/2

20:25-20:35

2 stops19h 10m

£448

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 25/2

13:30-00:39

2 stops16h 09m

Ottawa

Sun 1/3

15:05-08:30

1 stop12h 25m

£450

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sun 1/2

11:45-00:39

2 stops17h 54m

Ottawa

Fri 20/2

17:20-16:35

1 stop18h 15m

£455

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 25/2

06:00-22:18

2 stops21h 18m

Ottawa

Wed 4/3

10:30-07:10

2 stops15h 40m

£459

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 25/2

14:45-00:39

2 stops14h 54m

Ottawa

Fri 6/3

17:20-10:30

1 stop12h 10m

£461

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 4/2

13:30-00:39

2 stops16h 09m

Ottawa

Sun 8/2

10:00-06:30

1 stop15h 30m

£468

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sat 7/2

11:15-00:39

2 stops18h 24m

Ottawa

Sun 15/2

17:20-13:50

2 stops15h 30m

£487

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sun 5/7

17:45-00:22

1 stop11h 37m

Ottawa

Sun 19/7

17:10-08:00

1 stop9h 50m

£488

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 4/2

14:50-14:22

1 stop28h 32m

Ottawa

Tue 17/2

05:40-12:50

2 stops26h 10m

£491

Flights are sorted by cheapest return flights first.

Deals found on 11/1

Showing 1-10 of 20 results
1
2

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 return 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?

Use this chart to determine the optimal time to book a return flight from Heathrow to Ottawa. Price data was last updated on 9 January 2026.

Booking 89 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Ottawa. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, July is the cheapest month in which you can book a flight from London Heathrow Airport to Ottawa (average of £304). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of £381). 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 13 January 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Ottawa as you normally would.

How much does it cost for a return flight from London Heathrow Airport to Ottawa?

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 13 January 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Ottawa, such as Virgin Atlantic, Air France, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.3

Crew

8.2

Boarding

7.7

Overall

7.5

Entertainment

7.6

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

Comfort

7.3

Crew

8.2

Boarding

7.7

Overall

7.5

Entertainment

7.6

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

Comfort

7.3

Crew

8.2

Boarding

7.7

Overall

7.5

Entertainment

7.6

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

Comfort

7.3

Crew

8.2

Boarding

7.7

Overall

7.5

Entertainment

7.6

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

Comfort

7.3

Crew

8.2

Boarding

7.7

Overall

7.5

Entertainment

7.6

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

Comfort

7.3

Crew

8.2

Boarding

7.7

Overall

7.5

Entertainment

7.6

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

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?

    Ottawa (YOW), located 6.6 mi from the city center, is the airport you fly into when you book flights from London Heathrow to Ottawa. 6 airlines have flights to Ottawa from London Heathrow on a regular basis. Booking flights from London Heathrow to Ottawa should not be difficult; the airport handles an average of 0 inbound flights from London Heathrow per day.

  • How long is the flight from London Heathrow Airport to Ottawa?

    Departing from London Heathrow Airport to Ottawa will take you 7h 30m. The distance between London Heathrow Airport and Ottawa is about 3320 mi. This flight may include one or multiple stops.

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

    Our cheapest airline available from London Heathrow Airport to Ottawa is Air Canada. Our recent data shows that you can find tickets from as low as £310 on this airline. Additional options worth looking into are United Airlines and KLM, starting at £335 and £351 round-trip. Users have found that Air Canada is 43% cheaper than the other options available to this destination.

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

    For one-way options, check prices for Virgin Atlantic. According to our data, you can fly for as low as £290. Users have also found prices from £304 and £517 on WestJet and Lufthansa, respectively.

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

    Before booking your flight to Ottawa from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: TAP AIR PORTUGAL (83%), Air Canada (80%), Austrian Airlines( 80%).

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

    Looking at all options, your cheapest flight can be booked for £370. While the most popular route (London Heathrow - Ottawa) can be booked for £369 on average, our data indicates £2,256 when flying from London Heathrow Airport to Ottawa.

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

  • What are some popular things to do or see while on a stopover in Paris?

    The majority of Paris visitors spend their time at Eiffel Tower, Champs-Elysées, and Louvre Museum. Travelers on a layover in Paris can visit Eiffel Tower, Champs-Elysées, and Louvre Museum, by traveling 15.8 mi, 14.7 mi, and 14.3 mi, respectively after landing at Paris Charles de Gaulle. Travellers can book a car hire at Paris Charles de Gaulle for about £31 per day to make their sightseeing more efficient.

  • What are some popular points of interest to see during a stopover in Montreal?

    If you're on a stopover in Montreal and looking for things to do, consider visiting Notre-Dame Basilica, Chapelle Notre-Dame-de-Bon-Secours, or Place des Arts. Notre-Dame Basilica, Chapelle Notre-Dame-de-Bon-Secours, and Place des Arts can be visited by travelling about 9.9 mi, 10.2 mi, and 9.5 mi respectively from Montreal Pierre Elliott Trudeau Intl. Travellers in need of a car in Montreal can hire one for about £38 per day.

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

  • 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 holiday 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, July is the cheapest month in which you can book a flight from London Heathrow Airport to Ottawa (average of £304). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of £381). 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
Brockville
Smiths Falls

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Top 6 airlines flying from Heathrow to Ottawa

Discover the top 6 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 858,174 searches. Data last updated 13 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£310Average£541FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£335Average£352FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£351Average£442FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£360Average£498FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£369Average£448FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£450Average£528FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

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

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

Certainly. Search results for flights to Ottawa from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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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