Cheap flights from London Heathrow Airport to Ottawa from £285

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 25/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YOW
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London Heathrow to Ottawa are usually found in March or January, booked 89 days in advance, depart on a Friday or Monday 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 12 December 2025.

Wed 31/1212:00LHR - YOW
Nonstop7h 30mAir Canada
Wed 14/114:50YOW - LHR
1 stop11h 20mAir Canada
Deal found 11/12£503
Wed 31/1212:00LHR - YOW
Nonstop7h 30mAir Canada
Tue 13/114:05YOW - LHR
1 stop13h 25mAir Canada
Deal found 11/12£505
Wed 10/1213:25LHR - YOW
2 stops26h 56mAir Canada
Wed 7/116:40YOW - LHR
1 stop22h 55mAir Canada
Deal found 10/12£515
Wed 10/1213:25LHR - YOW
2 stops25h 21mAir Canada
Thu 8/108:30YOW - LHR
2 stops17h 40mAir Canada
Deal found 10/12£518
Wed 10/1213:25LHR - YOW
2 stops25h 21mAir Canada
Mon 5/117:59YOW - LHR
1 stop22h 21mAir Canada
Deal found 10/12£535
Thu 11/1209:00LHR - YOW
1 stop13h 43mAir Canada
Wed 7/116:40YOW - LHR
1 stop22h 55mAir Canada
Deal found 10/12£537
Fri 12/1209:00LHR - YOW
1 stop10h 21mAir Canada
Fri 9/114:50YOW - LHR
1 stop11h 20mAir Canada
Deal found 10/12£539
Thu 11/1209:00LHR - YOW
2 stops13h 40mAir Canada
Fri 9/114:50YOW - LHR
1 stop11h 20mAir Canada
Deal found 10/12£544
Mon 15/1209:00LHR - YOW
2 stops17h 18mAir Canada
Thu 8/108:30YOW - LHR
2 stops17h 40mAir Canada
Deal found 10/12£544
Mon 15/1209:00LHR - YOW
2 stops13h 18mAir Canada
Fri 9/112:00YOW - LHR
2 stops14h 10mAir Canada
Deal found 10/12£550
Sat 13/1206:50LHR - YOW
2 stops14h 42mUnited Airlines
Tue 6/119:27YOW - LHR
1 stop30h 13mUnited Airlines
Deal found 10/12£554

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 12 December 2025.

Round-trip from

£477

One-way from

£285

Popular in

August

Cheapest in

March

Average price

£652

Good round-trip deal

£505 or less

Good one-way deal

£519 or less
Virgin Atlantic
  • Virgin Atlantic
  • 13/1-20/1
  • 2 total stops
  • 39h 05m total
  • London to Ottawa
25/1
  • 25/1
  • 1 total stop
  • 28h 32m total
  • London to Ottawa
Highest demand for flights based on searches. 12% potential increase in price (£60 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£12 potential savings vs. average return price).
Average for round-trip flights in December 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.

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 12 December 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

Thu 22/1

19:20-15:10

1 stop24h 50m

Ottawa

Tue 27/1

17:20-10:30

1 stop12h 10m

£487

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 22/5

06:15-15:05

1 stop13h 50m

Ottawa

Wed 27/5

17:15-16:35

1 stop18h 20m

£489

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 9/1

14:30-00:42

1 stop15h 12m

Ottawa

Sun 18/1

17:35-10:30

1 stop11h 55m

£499

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 17/2

06:30-15:10

2 stops13h 40m

Ottawa

Tue 17/3

18:20-13:45

1 stop15h 25m

£502

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 17/2

06:30-15:10

2 stops13h 40m

Ottawa

Sun 15/3

18:20-10:30

1 stop12h 10m

£502

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sun 15/2

06:30-15:10

2 stops13h 40m

Ottawa

Tue 17/3

18:20-07:55

1 stop9h 35m

£502

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 9/4

08:45-10:06

2 stops30h 21m

Ottawa

Sat 18/4

21:00-08:35

Nonstop6h 35m

£508

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 22/1

06:50-16:30

2 stops14h 40m

Ottawa

Mon 26/1

14:05-10:50

2 stops15h 45m

£518

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sun 15/2

06:30-15:10

2 stops13h 40m

Ottawa

Tue 17/3

18:20-13:50

2 stops15h 30m

£525

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Mon 12/1

07:55-21:18

2 stops18h 23m

Ottawa

Tue 20/1

09:45-06:20

2 stops15h 35m

£537

Flights are sorted by cheapest return flights first.

Deals found on 10/12

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 5 December 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 £306). Flying from London Heathrow Airport to Ottawa in August is currently the most expensive (average of £377). 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 12 December 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.

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 12 December 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.

Crew

8.2

Food

6.9

Comfort

7.3

Entertainment

7.5

Boarding

7.7

Overall

7.5

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!

Crew

8.2

Food

6.9

Comfort

7.3

Entertainment

7.5

Boarding

7.7

Overall

7.5

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!

Crew

8.2

Food

6.9

Comfort

7.3

Entertainment

7.5

Boarding

7.7

Overall

7.5

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!

Crew

8.2

Food

6.9

Comfort

7.3

Entertainment

7.5

Boarding

7.7

Overall

7.5

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!

Crew

8.2

Food

6.9

Comfort

7.3

Entertainment

7.5

Boarding

7.7

Overall

7.5

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!

Crew

8.2

Food

6.9

Comfort

7.3

Entertainment

7.5

Boarding

7.7

Overall

7.5

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 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 24h 50m. 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 KLM, starting at £337 and £352 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 WestJet. According to our data, you can fly for as low as £278. Users have also found prices from £292 and £519 on Virgin Atlantic 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: Aegean Airlines (100%), United Airlines (97%), Air Canada( 96%).

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

    Looking at all options, your cheapest flight can be booked for £428. While the most popular route (London Heathrow - Ottawa) can be booked for £459 on average, our data indicates £2,455 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 £33 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, June is the cheapest month in which you can book a flight from London Heathrow Airport to Ottawa (average of £306). Flying from London Heathrow Airport to Ottawa in August is currently the most expensive (average of £377). 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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£312Average£544FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£337Average£353FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£352Average£445FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£362Average£488FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£371Average£442FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£453Average£541FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

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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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