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Cheap flights from London Heathrow Airport to Ottawa from C$ 443

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 15/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YOW
5 Jun — 12 Jun1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Ottawa are usually found in May or February, booked 89 days in advance, depart on a Tuesday or Friday and return on a Tuesday

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 6 May 2026.

Wed 3/66:00 a.m.
LHR
-
YOW
2 stops18h 46m
Multiple Airlines
Wed 10/63:00 p.m.
YOW
-
LHR
1 stop10h 30m
Multiple Airlines
Deal found 2/5C$ 678
Wed 3/612:40 p.m.
LHR
-
YOW
1 stop11h 13m
Air Canada
Wed 17/62:40 p.m.
YOW
-
LHR
1 stop10h 50m
Air Canada
Deal found 5/5C$ 680
Sat 13/66:00 a.m.
LHR
-
YOW
2 stops16h 11m
Multiple Airlines
Sun 21/67:30 p.m.
YOW
-
LHR
1 stop9h 30m
Multiple Airlines
Deal found 4/5C$ 681
Mon 8/66:00 a.m.
LHR
-
YOW
2 stops16h 11m
Multiple Airlines
Wed 17/63:00 p.m.
YOW
-
LHR
1 stop14h 00m
Multiple Airlines
Deal found 4/5C$ 684
Mon 1/66:00 a.m.
LHR
-
YOW
2 stops23h 46m
Austrian Airlines
Mon 8/68:05 p.m.
YOW
-
LHR
1 stop10h 45m
Austrian Airlines
Deal found 4/5C$ 688
Wed 3/66:00 a.m.
LHR
-
YOW
2 stops18h 46m
Multiple Airlines
Tue 23/64:00 p.m.
YOW
-
LHR
1 stop14h 50m
Multiple Airlines
Deal found 5/5C$ 692
Wed 3/68:40 a.m.
LHR
-
YOW
2 stops30h 55m
Air Canada
Wed 10/69:05 p.m.
YOW
-
LHR
Nonstop6h 30m
Air Canada
Deal found 6/5C$ 696

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 6 May 2026.

Round-trip from

C$ 678

One-way from

C$ 443

Popular in

December

Cheapest in

May

Average price

C$ 899

Good round-trip deal

C$ 1,149 or less

Good one-way deal

C$ 858 or less
Lufthansa
  • Lufthansa
  • 3/6-10/6
  • 3 total stops
  • 29h 16m total
  • London to Ottawa
Search Deals
15/5
  • 15/5
  • 3 total stops
  • 33h 45m total
  • London to Ottawa
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 107 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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

 
Customize 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 629,999 searches. Data last updated 6 May 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 round-trip

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 29/5

8:40 a.m.-11:54 p.m.

2 stops20h 14m

Ottawa

Fri 5/6

3:10 p.m.-7:15 a.m.

1 stop11h 05m

C$ 778

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 5/6

8:40 a.m.-11:54 p.m.

2 stops20h 14m

Ottawa

Sun 14/6

10:25 a.m.-5:55 a.m.

2 stops14h 30m

C$ 778

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 3/6

8:40 a.m.-11:54 p.m.

2 stops20h 14m

Ottawa

Wed 10/6

10:25 a.m.-7:15 a.m.

2 stops15h 50m

C$ 779

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 27/5

10:50 a.m.-10:05 p.m.

2 stops16h 15m

Ottawa

Wed 3/6

2:52 p.m.-9:20 a.m.

2 stops13h 28m

C$ 788
Quickest round-trip

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Mon 25/5

7:30 a.m.-6:48 p.m.

2 stops16h 18m

Ottawa

Thu 4/6

7:30 p.m.-10:40 a.m.

1 stop10h 10m

C$ 790

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sat 23/5

6:50 a.m.-6:48 p.m.

2 stops16h 58m

Ottawa

Fri 29/5

6:00 a.m.-6:55 a.m.

1 stop19h 55m

C$ 791

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 28/5

6:50 a.m.-4:38 p.m.

2 stops14h 48m

Ottawa

Thu 4/6

3:10 p.m.-8:20 a.m.

1 stop12h 10m

C$ 791

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 28/5

6:50 a.m.-4:38 p.m.

2 stops14h 48m

Ottawa

Wed 3/6

3:10 p.m.-9:20 a.m.

1 stop13h 10m

C$ 791

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 4/6

6:50 a.m.-4:38 p.m.

2 stops14h 48m

Ottawa

Mon 8/6

12:00 p.m.-7:15 a.m.

2 stops14h 15m

C$ 799

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 26/6

6:50 a.m.-4:38 p.m.

2 stops14h 48m

Ottawa

Tue 7/7

3:10 p.m.-10:40 a.m.

2 stops14h 30m

C$ 950

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/5

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 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 London Heathrow Airport to Ottawa

How far ahead should I book a flight from London Heathrow Airport to Ottawa?

The price you pay for your flight from London Heathrow Airport to Ottawa may vary depending on when you book. For the best chance of a lower fare, look to book 90 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from London Heathrow Airport to Ottawa?

Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Ottawa (average of C$ 899). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of C$ 1,276). 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 6 May 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.

How much does it cost to fly round-trip 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 6 May 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Ottawa, such as Air France and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air France
7.4
Good
1,585 reviews
Check prices

Boarding

7.5

Crew

8.1

Entertainment

7.0

Food

7.0

Comfort

7.4

Overall

7.4

Reviews

1 / 20
4.0
Okay

Carolina,Mar 2026

BOG - CDG

The aircraft is so old that you don’t even notice you are in a business class.
Air France
7.4
Good
1,585 reviews
Air France
7.4
Good
1,585 reviews
Check prices

Boarding

7.5

Crew

8.1

Entertainment

7.0

Food

7.0

Comfort

7.4

Overall

7.4

Reviews

1 / 20
4.0
Okay

Carolina,Mar 2026

BOG - CDG

The aircraft is so old that you don’t even notice you are in a business class.
Air Canada
7.1
Good
11,000 reviews
Air France
7.4
Good
1,585 reviews
Check prices

Boarding

7.5

Crew

8.1

Entertainment

7.0

Food

7.0

Comfort

7.4

Overall

7.4

Reviews

1 / 20
4.0
Okay

Carolina,Mar 2026

BOG - CDG

The aircraft is so old that you don’t even notice you are in a business class.

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?

    Located just 10.6 km from the city centre, Ottawa is the airport most travellers will use when flying to Ottawa from London Heathrow. Booking flights from London Heathrow to Ottawa (YOW) should be relatively easy as there is 1 daily inbound flight from London Heathrow from 2 different airlines.

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

    There are many flights that can get you from London Heathrow Airport to Ottawa in 20h 14m. Fly via United Airlines to get the fastest option. The distance from London Heathrow Airport to Ottawa is about 5343 km.

  • What are the cheapest airlines flying from London Heathrow Airport to Ottawa round-trip?

    Air France, at C$ 784, was found to be the cheapest airline from London Heathrow Airport to Ottawa. An alternate airline flying to your destination would be Air Canada. Users have found that Air France is 23% cheaper than the other options available to this destination.

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

    The top 3 most reliable airlines when flying from London Heathrow Airport to Ottawa are Aegean Airlines (100%), Air Canada (83%) and Austrian Airlines (83%).

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

    Looking for the cheapest flight from London Heathrow Airport to Ottawa? While on average our users pay C$ 1,079, our data indicates the cheapest price to be C$ 770. The most popular route (London Heathrow - Ottawa), is priced around C$ 684.

  • 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 vacation 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, May is the cheapest month in which you can book a flight from London Heathrow Airport to Ottawa (average of C$ 899). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of C$ 1,276). 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
Gatineau
Brockville
Wakefield
Pembroke
Smiths Falls

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Heathrow to Ottawa

Discover the top 2 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 629,999 searches. Data last updated 6 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapestC$ 784AverageC$ 1,318FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air CanadaCheapestC$ 785AverageC$ 1,022FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers 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?

When you search for this flight from Heathrow to Ottawa, 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 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?

Yes! Cheapflights helps users easily find flights from Heathrow to Ottawa with no change fees.

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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