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Cheap flights from London Heathrow Airport to Ottawa from £223

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 29/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YOW
17 Apr — 24 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Ottawa are usually found in June or May, booked 89 days in advance, depart on a Friday or Thursday and return on a Monday

Cheap 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 18 March 2026.

Thu 4/620:05
LHR
-
YOW
2 stops26h 06m
Multiple Airlines
Wed 10/611:15
YOW
-
LHR
1 stop17h 45m
Multiple Airlines
Deal found 16/3£412
Wed 17/614:10
LHR
-
YOW
Nonstop7h 55m
Air Canada
Wed 24/621:00
YOW
-
LHR
Nonstop6h 35m
Air Canada
Deal found 16/3£413
Fri 15/512:40
LHR
-
YOW
1 stop11h 13m
Air Canada
Thu 28/518:55
YOW
-
LHR
Nonstop6h 35m
Air Canada
Deal found 16/3£414
Fri 22/512:40
LHR
-
YOW
1 stop11h 13m
Air Canada
Mon 1/619:30
YOW
-
LHR
1 stop9h 30m
Air Canada
Deal found 16/3£415
Mon 15/609:30
LHR
-
YOW
Nonstop7h 55m
Air Canada
Sun 21/617:45
YOW
-
LHR
1 stop11h 15m
Air Canada
Deal found 15/3£416
Thu 4/609:30
LHR
-
YOW
Nonstop7h 55m
Air Canada
Tue 9/619:30
YOW
-
LHR
1 stop9h 30m
Air Canada
Deal found 16/3£416
Sat 23/514:10
LHR
-
YOW
Nonstop7h 55m
Air Canada
Sat 6/621:00
YOW
-
LHR
Nonstop6h 35m
Air Canada
Deal found 13/3£417
Sat 30/512:40
LHR
-
YOW
1 stop11h 13m
Air Canada
Fri 5/615:00
YOW
-
LHR
1 stop10h 30m
Air Canada
Deal found 17/3£418
Wed 20/512:40
LHR
-
YOW
1 stop11h 13m
Air Canada
Mon 25/514:00
YOW
-
LHR
1 stop11h 35m
Air Canada
Deal found 17/3£419
Fri 22/512:40
LHR
-
YOW
1 stop11h 13m
Air Canada
Sat 6/619:30
YOW
-
LHR
1 stop9h 30m
Air Canada
Deal found 13/3£420
Thu 4/617:15
LHR
-
YOW
2 stops28h 56m
Multiple Airlines
Mon 8/618:55
YOW
-
LHR
Nonstop6h 35m
Multiple Airlines
Deal found 16/3£422

Find 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 18 March 2026.

Round-trip from

£412

One-way from

£223

Popular in

August

Cheapest in

June

Average price

£538

Good round-trip deal

£443 or less

Good one-way deal

£536 or less
Air Canada
  • Air Canada
  • 4/6-9/6
  • 3 total stops
  • 36h 36m total
  • London to Ottawa
Search Deals
29/4
  • 29/4
  • 3 total stops
  • 35h 15m total
  • London to Ottawa
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£38 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
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

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 18 March 2026.
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

Cheapest return flight

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 5/6

06:50-16:38

2 stops14h 48m

Ottawa

Tue 9/6

10:44-05:55

2 stops14h 11m

£456

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 15/5

07:30-21:35

2 stops19h 05m

Ottawa

Sat 30/5

15:10-07:15

1 stop11h 05m

£458

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sat 16/5

06:50-18:55

2 stops17h 05m

Ottawa

Wed 27/5

10:44-06:45

1 stop15h 01m

£458

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 5/6

07:25-23:54

2 stops21h 29m

Ottawa

Sat 27/6

15:10-07:15

1 stop11h 05m

£458

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 17/4

08:55-15:00

1 stop11h 05m

Ottawa

Sun 26/4

17:10-13:45

1 stop15h 35m

£545

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Mon 15/6

07:30-10:03

2 stops31h 33m

Ottawa

Sun 21/6

17:20-21:35

2 stops23h 15m

£564

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 31/3

07:25-18:55

2 stops16h 30m

Ottawa

Mon 6/4

15:10-10:40

2 stops14h 30m

£592
Fastest return journey

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 14/5

14:05-20:51

1 stop11h 46m

Ottawa

Thu 28/5

17:50-10:00

1 stop11h 10m

£597

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Mon 13/4

07:25-18:55

2 stops16h 30m

Ottawa

Mon 20/4

14:40-09:20

2 stops13h 40m

£621

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sun 12/4

07:25-18:55

2 stops16h 30m

Ottawa

Sun 19/4

17:25-11:55

1 stop13h 30m

£621

Flights are sorted by cheapest return flights first.

Deals found on 16/3

Showing 1-10 of 18 resultsSorted by cheapest first
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 13 March 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 £307). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of £387). 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 18 March 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.

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 18 March 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.
Virgin Atlantic
7.5
Good
682 reviews
Check prices

Boarding

7.7

Food

6.9

Entertainment

7.6

Overall

7.5

Comfort

7.3

Crew

8.2

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!
Virgin Atlantic
7.5
Good
682 reviews
Virgin Atlantic
7.5
Good
682 reviews
Check prices

Boarding

7.7

Food

6.9

Entertainment

7.6

Overall

7.5

Comfort

7.3

Crew

8.2

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!
Air France
7.4
Good
1,547 reviews
Virgin Atlantic
7.5
Good
682 reviews
Check prices

Boarding

7.7

Food

6.9

Entertainment

7.6

Overall

7.5

Comfort

7.3

Crew

8.2

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!
United Airlines
7.4
Good
9,436 reviews
Virgin Atlantic
7.5
Good
682 reviews
Check prices

Boarding

7.7

Food

6.9

Entertainment

7.6

Overall

7.5

Comfort

7.3

Crew

8.2

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!
Air Canada
7.1
Good
10,815 reviews
Virgin Atlantic
7.5
Good
682 reviews
Check prices

Boarding

7.7

Food

6.9

Entertainment

7.6

Overall

7.5

Comfort

7.3

Crew

8.2

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!
Lufthansa
6.8
Okay
7,856 reviews
Virgin Atlantic
7.5
Good
682 reviews
Check prices

Boarding

7.7

Food

6.9

Entertainment

7.6

Overall

7.5

Comfort

7.3

Crew

8.2

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. 5 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 2 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 14h 48m. The distance between London Heathrow Airport and Ottawa is about 3320 mi.

  • 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 £312 on this airline. Additional options worth looking into are United Airlines and Air France, starting at £338 and £370 round-trip. Users have found that Air Canada is 44% 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 £293. Users have also found prices from £518 and £574 on Lufthansa and Air Canada, 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: Air Canada (89%), Austrian Airlines (89%), SriLankan Airlines( 89%).

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

    Looking at all options, your cheapest flight can be booked for £339. While the most popular route (London Heathrow - Ottawa) can be booked for £335 on average, our data indicates £583 when flying from London Heathrow Airport to Ottawa.

  • 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 £307). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of £387). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Heathrow to Ottawa

Discover the top 5 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 18 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£312Average£549FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£338Average£355FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air FranceCheapest£370Average£535FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£372Average£454FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£461Average£540FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ottawa from Heathrow today with Cheapflights!

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?

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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