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Cheap flights from London Heathrow Airport to Ottawa from £279

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 13/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YOW
27 Nov — 4 Dec1
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 Monday or Friday and return on a Monday

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 28 October 2025.

Fri 21/1109:00LHR - YOW
2 stops13h 42mMultiple Airlines
Wed 28/120:25YOW - LHR
2 stops19h 10mMultiple Airlines
Deal found 27/10£445
Sat 1/1109:00LHR - YOW
2 stops29h 42mAir Canada
Sat 24/118:05YOW - LHR
2 stops32h 05mAir Canada
Deal found 27/10£450
Fri 21/1109:00LHR - YOW
2 stops17h 18mAir Canada
Wed 28/114:50YOW - LHR
1 stop11h 20mAir Canada
Deal found 27/10£456
Mon 24/1107:40LHR - YOW
2 stops19h 38mMultiple Airlines
Mon 1/1210:20YOW - LHR
2 stops15h 50mMultiple Airlines
Deal found 27/10£457
Tue 25/1109:00LHR - YOW
2 stops13h 42mMultiple Airlines
Wed 28/110:20YOW - LHR
2 stops15h 50mMultiple Airlines
Deal found 27/10£458
Fri 14/1113:25LHR - YOW
1 stop13h 53mAir Canada
Sun 23/1108:30YOW - LHR
2 stops17h 40mAir Canada
Deal found 27/10£459
Sat 15/1106:50LHR - YOW
2 stops14h 28mAir Canada
Thu 20/1120:25YOW - LHR
2 stops19h 10mAir Canada
Deal found 26/10£464
Mon 24/1113:25LHR - YOW
1 stop31h 53mAir Canada
Mon 1/1210:20YOW - LHR
2 stops15h 50mAir Canada
Deal found 27/10£468
Mon 1/1214:30LHR - YOW
1 stop15h 12mMultiple Airlines
Sun 7/1217:20YOW - LHR
1 stop9h 40mMultiple Airlines
Deal found 27/10£469
Mon 3/1109:00LHR - YOW
1 stop13h 43mAir Canada
Mon 17/1120:25YOW - LHR
2 stops19h 10mAir Canada
Deal found 26/10£470

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 28 October 2025.

Round-trip from

£443

One-way from

£279

Popular in

August

Cheapest in

March

Average price

£537

Good round-trip deal

£494 or less

Good one-way deal

£6,261 or less
Air Canada
  • Air Canada
  • 6/12-13/12
  • 2 total stops
  • 40h 25m total
  • London to Ottawa
Search Deals
Virgin Atlantic
  • Virgin Atlantic
  • 13/2
  • 1 total stop
  • 11h 10m total
  • London to Ottawa
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£58 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 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

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 28 October 2025.
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

Wed 10/12

09:00-15:10

1 stop11h 10m

Ottawa

Wed 24/12

17:20-10:30

1 stop12h 10m

£473

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 25/11

09:00-17:43

1 stop13h 43m

Ottawa

Wed 28/1

10:20-07:10

2 stops15h 50m

£495

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 11/3

13:25-08:18

2 stops22h 53m

Ottawa

Sun 15/3

14:50-07:10

1 stop12h 20m

£500

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 11/3

19:25-16:10

1 stop24h 45m

Ottawa

Sun 15/3

18:20-08:00

1 stop9h 40m

£507

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 7/11

18:00-13:32

1 stop24h 32m

Ottawa

Mon 10/11

05:00-07:10

2 stops21h 10m

£516

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Mon 17/11

09:00-19:18

2 stops15h 18m

Ottawa

Mon 24/11

10:50-08:05

2 stops16h 15m

£520

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 26/12

12:00-14:30

Nonstop7h 30m

Ottawa

Mon 5/1

20:00-07:10

1 stop30h 10m

£536

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sun 28/12

12:00-14:30

Nonstop7h 30m

Ottawa

Sat 10/1

14:50-07:10

1 stop11h 20m

£539

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 27/11

13:25-22:18

1 stop13h 53m

Ottawa

Mon 5/1

20:00-07:10

1 stop30h 10m

£540

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 2/12

15:15-00:40

2 stops38h 25m

£293

Flights are sorted by cheapest return flights first.

Deals found on 26/10

Showing 1-10 of 21 results
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2
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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 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 24 October 2025.

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, June is the cheapest month in which you can book a flight from London Heathrow Airport to Ottawa (average of £308). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of £396). 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 28 October 2025.

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Ottawa in the evening. If you’re flexible enough to do this you can expect to save up to 25% on your trip compared to booking a flight in the afternoon.

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 28 October 2025.
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
670 reviews
Check prices

Entertainment

7.5

Crew

8.1

Overall

7.5

Boarding

7.7

Comfort

7.3

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

Entertainment

7.5

Crew

8.1

Overall

7.5

Boarding

7.7

Comfort

7.3

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!
Air France
7.4
Good
1,481 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Entertainment

7.5

Crew

8.1

Overall

7.5

Boarding

7.7

Comfort

7.3

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!
United Airlines
7.4
Good
8,995 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Entertainment

7.5

Crew

8.1

Overall

7.5

Boarding

7.7

Comfort

7.3

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!
Air Canada
7.1
Good
10,370 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Entertainment

7.5

Crew

8.1

Overall

7.5

Boarding

7.7

Comfort

7.3

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!
Lufthansa
6.8
Okay
7,532 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Entertainment

7.5

Crew

8.1

Overall

7.5

Boarding

7.7

Comfort

7.3

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 11h 10m. 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 £313 on this airline. Additional options worth looking into are United Airlines and KLM, starting at £338 and £354 round-trip. Users have found that Air Canada is 44% cheaper than the other options available to this destination.

  • 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 (80%), Aegean Airlines (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 £395. While the most popular route (London Heathrow - Ottawa) can be booked for £457 on average, our data indicates £3,453 when flying from London Heathrow Airport to Ottawa.

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

    The most popular stopover on flights from London Heathrow Airport to Ottawa is Paris. Montreal is the second most popular location for stopovers on flights 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 Notre Dame. Travelers on a layover in Paris can visit Eiffel Tower, Champs-Elysées, and Notre Dame, 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 £39 per day to make their sightseeing more efficient.

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

    The least popular stopover on flights from London Heathrow Airport to Ottawa is Toronto.

  • 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, June is the cheapest month in which you can book a flight from London Heathrow Airport to Ottawa (average of £308). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of £396). 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
Smiths Falls

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Alternative routes for Heathrow to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
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Luton to Pierre Elliott Trudeau Intl flights
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Heathrow to Timmins flights

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 28 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£313Average£551FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£338Average£355FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£354Average£476FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£365Average£477FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£372Average£445FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£458Average£547FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

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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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