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Cheap flights from Ottawa to London Heathrow Airport from C$ 396

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 26/1. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LHR
26 Nov — 3 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Ottawa to London Heathrow are usually found in February or January, booked 20 days in advance, depart on a Thursday or Friday and return on a Wednesday

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 27 October 2025.

Round-trip from

C$ 901

One-way from

C$ 396

Popular in

December

Cheapest in

February

Average price

C$ 1,027

Good round-trip deal

C$ 1,007 or less

Good one-way deal

C$ 985 or less
SWISS
  • SWISS
  • 12/11-26/11
  • 4 total stops
  • 32h 22m total
  • Ottawa to London
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26/1
  • 26/1
  • 2 total stops
  • 21h 50m total
  • Ottawa to London
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 107 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 46 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Ottawa to London Heathrow.
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Price to beat on a one-way flight from Ottawa to London Heathrow.
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Find flight deals from Ottawa to Heathrow

Enter your travel dates to find the best prices.

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 27 October 2025.

Wed 12/1110:30 a.m.YOW - LHR
2 stops15h 40mMultiple Airlines
Wed 26/116:00 a.m.LHR - YOW
2 stops16h 42mMultiple Airlines
Deal found 25/10C$ 901
Tue 18/112:50 p.m.YOW - LHR
1 stop11h 20mMultiple Airlines
Tue 25/119:00 a.m.LHR - YOW
2 stops13h 42mMultiple Airlines
Deal found 25/10C$ 904
Wed 12/116:20 p.m.YOW - LHR
1 stop31h 50mAir Canada
Thu 27/119:00 a.m.LHR - YOW
2 stops13h 42mAir Canada
Deal found 24/10C$ 905
Mon 24/112:50 p.m.YOW - LHR
1 stop11h 20mAir Canada
Mon 1/126:00 p.m.LHR - YOW
1 stop12h 38mAir Canada
Deal found 27/10C$ 910
Wed 12/119:55 p.m.YOW - LHR
Nonstop6h 25mAir Canada
Wed 3/129:00 a.m.LHR - YOW
1 stop10h 21mAir Canada
Deal found 25/10C$ 911
Fri 28/119:55 p.m.YOW - LHR
Nonstop6h 25mMultiple Airlines
Sun 7/126:00 a.m.LHR - YOW
2 stops18h 18mMultiple Airlines
Deal found 26/10C$ 914
Wed 12/112:05 p.m.YOW - LHR
1 stop11h 25mMultiple Airlines
Wed 3/129:00 a.m.LHR - YOW
2 stops18h 18mMultiple Airlines
Deal found 25/10C$ 918
Wed 12/119:55 p.m.YOW - LHR
Nonstop6h 25mAir Canada
Wed 26/119:00 a.m.LHR - YOW
1 stop10h 21mAir Canada
Deal found 26/10C$ 922
Wed 12/119:55 p.m.YOW - LHR
Nonstop6h 25mMultiple Airlines
Sun 16/1112:00 p.m.LHR - YOW
Nonstop7h 30mMultiple Airlines
Deal found 25/10C$ 928

Cheapflights Fare Finder

 
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 27 October 2025.
Use the filters below to find and compare flights from Ottawa to London Heathrow Airport that are best for you.

Fly from

Ottawa

Fly to

Heathrow

Route

Depart

Return

Price

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Wed 12/11

10:30 a.m.-7:10 a.m.

2 stops15h 40m

London Heathrow

Wed 26/11

6:00 a.m.-5:42 p.m.

2 stops16h 42m

C$ 901

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Wed 3/12

9:55 p.m.-9:20 a.m.

Nonstop6h 25m

London Heathrow

Wed 10/12

12:00 p.m.-2:30 p.m.

Nonstop7h 30m

C$ 929

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Fri 5/12

9:55 p.m.-9:20 a.m.

Nonstop6h 25m

London Heathrow

Fri 12/12

12:00 p.m.-2:30 p.m.

Nonstop7h 30m

C$ 929

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Sun 11/1

9:55 p.m.-9:20 a.m.

Nonstop6h 25m

London Heathrow

Sun 18/1

12:00 p.m.-2:30 p.m.

Nonstop7h 30m

C$ 938

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Fri 9/1

4:00 p.m.-7:10 a.m.

1 stop10h 10m

London Heathrow

Wed 14/1

12:00 p.m.-2:30 p.m.

Nonstop7h 30m

C$ 938

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Wed 5/11

7:30 p.m.-10:50 a.m.

1 stop10h 20m

London Heathrow

Sun 23/11

6:00 a.m.-7:18 p.m.

2 stops18h 18m

C$ 953

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Thu 6/11

5:14 p.m.-5:55 a.m.

1 stop31h 41m

London Heathrow

Tue 11/11

6:50 a.m.-4:32 p.m.

2 stops14h 42m

C$ 988

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Wed 5/11

7:30 p.m.-10:50 a.m.

1 stop10h 20m

London Heathrow

Wed 26/11

6:50 a.m.-6:55 p.m.

2 stops17h 05m

C$ 988

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Fri 7/11

10:30 a.m.-6:40 a.m.

1 stop15h 10m

London Heathrow

Wed 26/11

6:50 a.m.-4:32 p.m.

2 stops14h 42m

C$ 988

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Mon 26/1

10:00 a.m.-12:50 p.m.

2 stops21h 50m

C$ 396

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/10

Showing 1-10 of 18 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.

Cheapflights Insights

Everything you need to know about your flight from Ottawa to London Heathrow Airport

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 24 October 2025.

The best time to book flights from Ottawa to London Heathrow Airport is 20 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$ 702). Flying from Ottawa to London Heathrow Airport in July is currently the most expensive (average of C$ 940). 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 27 October 2025.

It’s typically best to fly out from Ottawa to London Heathrow Airport in the morning. Doing so could potentially save you 1% on the flight price compared to flying at noon, 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 Wednesday afternoons when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 27 October 2025.
Read reviews from past customers who have flown Virgin Atlantic,Air France, andUnited Airlines from Ottawa to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Food

6.9

Crew

8.1

Boarding

7.7

Overall

7.5

Entertainment

7.5

Comfort

7.3

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

Food

6.9

Crew

8.1

Boarding

7.7

Overall

7.5

Entertainment

7.5

Comfort

7.3

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

Food

6.9

Crew

8.1

Boarding

7.7

Overall

7.5

Entertainment

7.5

Comfort

7.3

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

Food

6.9

Crew

8.1

Boarding

7.7

Overall

7.5

Entertainment

7.5

Comfort

7.3

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

Food

6.9

Crew

8.1

Boarding

7.7

Overall

7.5

Entertainment

7.5

Comfort

7.3

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

Food

6.9

Crew

8.1

Boarding

7.7

Overall

7.5

Entertainment

7.5

Comfort

7.3

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 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 5 airlines. Ottawa is conveniently located just 10.6 km from Ottawa’s city centre.

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

    A quick flight from Ottawa to London Heathrow Airport can take about 6h 25m. Air Canada provides one of the quickest options available for as low as C$ 929. The distance between Ottawa and London Heathrow Airport is about 5343 km. Most flights are nonstop.

  • 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$ 739. Other airlines that can offer you cheap pricing are Virgin Atlantic, from C$ 742, and United Airlines, from C$ 902. Air France is 31% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The top 3 most reliable airlines when flying from Ottawa to London Heathrow Airport are Air Canada (74%), Aegean Airlines (74%) and Austrian Airlines (74%).

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

    On average you can expect to pay C$ 1,611 for a flight from Ottawa to London Heathrow Airport. The cheapest flight overall is C$ 722 while the most popular route, (Ottawa - London Heathrow) is currently priced at C$ 914.

  • 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$ 702). Flying from Ottawa to London Heathrow Airport in July is currently the most expensive (average of C$ 940). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Sutton
Hounslow
Slough
Marlow
Leamington Spa
Milton Keynes
Romford
Watford
Bedford
Luton
Stratford-upon-Avon
Southall
Gatwick

Browse thousands of different options on Cheapflights for your next trip

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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 27 October 2025.
Air Canada flights from Ottawa to London Heathrow
Lufthansa flights from Ottawa to London Heathrow
United Airlines flights from Ottawa to London Heathrow

Top 5 airlines flying from Ottawa to Heathrow

Discover the top 5 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 27 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapestC$ 739AverageC$ 933FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapestC$ 742AverageC$ 825FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapestC$ 902AverageC$ 1,123FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 908AverageC$ 1,064FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 970AverageC$ 1,087FlexibilityNo 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?

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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.

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