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Cheap flights from Ottawa to London Heathrow Airport from C$ 385

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 22/1. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LHR
11 ene. — 18 ene.1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Ottawa to London Heathrow are usually found in November or February, booked 68 days in advance, depart on a Thursday or Saturday and return on a Thursday

Cheap 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 12 diciembre 2025.

jue. 11/122:50 p.m.YOW - LHR
1 stop11h 20mAir Canada
jue. 18/129:00 a.m.LHR - YOW
1 stop13h 43mAir Canada
Deal found 10/12C$ 1,099
vie. 12/129:55 p.m.YOW - LHR
Nonstop6h 25mAir Canada
mié. 17/1212:00 p.m.LHR - YOW
Nonstop7h 30mAir Canada
Deal found 10/12C$ 1,135
jue. 11/124:00 p.m.YOW - LHR
1 stop10h 10mMultiple Airlines
jue. 18/129:00 a.m.LHR - YOW
1 stop13h 43mMultiple Airlines
Deal found 10/12C$ 1,161
mar. 23/128:00 p.m.YOW - LHR
2 stops43h 35mAir Canada
lun. 29/129:00 a.m.LHR - YOW
1 stop30h 21mAir Canada
Deal found 11/12C$ 1,204
lun. 15/125:45 a.m.YOW - LHR
1 stop20h 25mAir Canada
mié. 18/26:50 a.m.LHR - YOW
2 stops14h 33mAir Canada
Deal found 11/12C$ 1,211

Find 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 12 diciembre 2025.

Round-trip from

C$ 851

One-way from

C$ 385

Popular in

December

Cheapest in

November

Average price

C$ 1,380

Good round-trip deal

C$ 921 or less

Good one-way deal

C$ 835 or less
12/4-22/4
  • 12/4-22/4
  • 4 total stops
  • 54h 44m total
  • Ottawa to London
Search Deals
WestJet
  • WestJet
  • 22/1
  • 2 total stops
  • 26h 10m total
  • Ottawa to London
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 65 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Ottawa to London Heathrow.
Search Deals
Price to beat on a one-way flight from Ottawa to London Heathrow.
Search Deals

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 12 diciembre 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

dom. 25/1

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

Nonstop6h 25m

London Heathrow

dom. 1/2

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

Nonstop7h 30m

C$ 901

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

lun. 26/1

4:40 p.m.-8:35 p.m.

1 stop22h 55m

London Heathrow

lun. 2/2

1:25 p.m.-4:23 p.m.

1 stop31h 58m

C$ 902

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

vie. 16/1

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

Nonstop6h 25m

London Heathrow

vie. 23/1

6:35 a.m.-6:38 p.m.

2 stops17h 03m

C$ 905

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

sáb. 24/1

7:25 p.m.-11:20 a.m.

1 stop10h 55m

London Heathrow

sáb. 31/1

1:25 p.m.-10:18 p.m.

1 stop13h 53m

C$ 907

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

vie. 23/1

5:45 p.m.-4:35 p.m.

1 stop17h 50m

London Heathrow

dom. 1/2

6:20 a.m.-3:10 p.m.

1 stop13h 50m

C$ 909

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

lun. 16/2

5:20 p.m.-7:55 a.m.

1 stop9h 35m

London Heathrow

vie. 20/2

8:55 a.m.-3:10 p.m.

1 stop11h 15m

C$ 909

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

dom. 15/2

5:20 p.m.-6:20 p.m.

1 stop20h 00m

London Heathrow

jue. 19/2

6:20 a.m.-3:10 p.m.

1 stop13h 50m

C$ 909

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

dom. 15/2

2:50 p.m.-7:10 a.m.

1 stop11h 20m

London Heathrow

jue. 19/2

9:00 a.m.-7:18 p.m.

2 stops15h 18m

C$ 920

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

lun. 18/5

5:30 p.m.-9:00 p.m.

1 stop22h 30m

London Heathrow

vie. 29/5

12:40 p.m.-8:28 a.m.

1 stop24h 48m

C$ 924

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

sáb. 24/1

7:25 p.m.-11:20 a.m.

1 stop10h 55m

London Heathrow

sáb. 31/1

1:25 p.m.-10:18 p.m.

1 stop13h 53m

C$ 925

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 20 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 5 December 2025.

The best time to book flights from Ottawa to London Heathrow Airport is 68 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, November is the cheapest month in which you can book a flight from Ottawa to London Heathrow Airport (average of C$ 616). Flying from Ottawa to London Heathrow Airport in July is currently the most expensive (average of C$ 927). 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 12 diciembre 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.

How much does it cost to fly round-trip from Ottawa to London Heathrow Airport?

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 12 diciembre 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
675 reviews
Check prices

Boarding

7.7

Overall

7.5

Comfort

7.3

Crew

8.2

Food

6.9

Entertainment

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

Boarding

7.7

Overall

7.5

Comfort

7.3

Crew

8.2

Food

6.9

Entertainment

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!
Air France
7.4
Good
1,502 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Boarding

7.7

Overall

7.5

Comfort

7.3

Crew

8.2

Food

6.9

Entertainment

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!
United Airlines
7.4
Good
9,095 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Boarding

7.7

Overall

7.5

Comfort

7.3

Crew

8.2

Food

6.9

Entertainment

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!
Air Canada
7.1
Good
10,514 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Boarding

7.7

Overall

7.5

Comfort

7.3

Crew

8.2

Food

6.9

Entertainment

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!
Lufthansa
6.8
Okay
7,626 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Boarding

7.7

Overall

7.5

Comfort

7.3

Crew

8.2

Food

6.9

Entertainment

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 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 2 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$ 901. The distance between Ottawa and London Heathrow Airport is about 5343 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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$ 729. Other airlines that can offer you cheap pricing are Virgin Atlantic, from C$ 731, and United Airlines, from C$ 889. Air France is 30% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airlines for a one-way flight from Ottawa to London Heathrow Airport are WestJet (C$ 340), Air Canada (C$ 477), and Lufthansa (C$ 548).

  • 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 Aegean Airlines (59%), Air Canada (58%) and Austrian Airlines (58%).

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

    On average you can expect to pay C$ 974 for a flight from Ottawa to London Heathrow Airport. The cheapest flight overall is C$ 835 while the most popular route, (Ottawa - London Heathrow) is currently priced at C$ 851.

  • 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, November is the cheapest month in which you can book a flight from Ottawa to London Heathrow Airport (average of C$ 616). Flying from Ottawa to London Heathrow Airport in July is currently the most expensive (average of C$ 927). 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
Twickenham
Slough
Marlow
Milton Keynes
Leamington Spa
Romford
Watford
Bedford
Luton
Stratford-upon-Avon
Gatwick
Hounslow

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 12 diciembre 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 12 diciembre 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapestC$ 729AverageC$ 933FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapestC$ 731AverageC$ 810FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapestC$ 889AverageC$ 1,117FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 892AverageC$ 1,035FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 938AverageC$ 1,064FlexibilityNo 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?

Millions of users choose and trust Cheapflights to book the best flight deals from Ottawa to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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.

Can Cheapflights notify me if prices for flights from Ottawa to Heathrow become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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