Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Ottawa from C$ 435

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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YOW
25 May — 1 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 Wednesday 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 25 April 2026.

Fri 15/56:00 a.m.
LHR
-
YOW
2 stops16h 11m
Multiple Airlines
Fri 22/52:40 p.m.
YOW
-
LHR
1 stop10h 50m
Multiple Airlines
Deal found 23/4C$ 682
Sat 16/56:00 a.m.
LHR
-
YOW
2 stops16h 11m
Multiple Airlines
Sat 30/58:50 a.m.
YOW
-
LHR
1 stop31h 10m
Multiple Airlines
Deal found 20/4C$ 698
Thu 24/98:45 a.m.
LHR
-
YOW
2 stops18h 25m
Air Canada
Wed 30/95:30 p.m.
YOW
-
LHR
1 stop22h 30m
Air Canada
Deal found 23/4C$ 699
Fri 15/56:00 a.m.
LHR
-
YOW
2 stops16h 11m
Multiple Airlines
Sat 23/59:00 p.m.
YOW
-
LHR
Nonstop6h 35m
Multiple Airlines
Deal found 22/4C$ 702
Sat 13/66:00 a.m.
LHR
-
YOW
2 stops16h 11m
Multiple Airlines
Sat 27/63:10 p.m.
YOW
-
LHR
1 stop13h 50m
Multiple Airlines
Deal found 22/4C$ 705
Mon 5/109:30 a.m.
LHR
-
YOW
Nonstop7h 55m
Air Canada
Mon 12/106:55 p.m.
YOW
-
LHR
Nonstop6h 35m
Air Canada
Deal found 20/4C$ 706
Mon 8/66:40 p.m.
LHR
-
YOW
2 stops27h 31m
Multiple Airlines
Mon 29/67:30 p.m.
YOW
-
LHR
1 stop9h 30m
Multiple Airlines
Deal found 22/4C$ 710
Tue 19/56:00 a.m.
LHR
-
YOW
2 stops16h 11m
Multiple Airlines
Tue 26/58:05 p.m.
YOW
-
LHR
1 stop10h 45m
Multiple Airlines
Deal found 21/4C$ 712
Mon 21/99:30 a.m.
LHR
-
YOW
Nonstop7h 55m
Air Canada
Wed 14/109:00 p.m.
YOW
-
LHR
Nonstop6h 35m
Air Canada
Deal found 23/4C$ 713
Mon 8/69:30 a.m.
LHR
-
YOW
Nonstop7h 10m
Air Canada
Mon 29/66:55 p.m.
YOW
-
LHR
Nonstop6h 35m
Air Canada
Deal found 22/4C$ 714

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 25 April 2026.

Round-trip from

C$ 682

One-way from

C$ 435

Popular in

December

Cheapest in

May

Average price

C$ 996

Good round-trip deal

C$ 941 or less

Good one-way deal

C$ 931 or less
Lufthansa
  • Lufthansa
  • 15/5-22/5
  • 3 total stops
  • 27h 01m total
  • London to Ottawa
Search Deals
17/6
  • 17/6
  • 3 total stops
  • 27h 00m total
  • London to Ottawa
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 104 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 April 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 25 April 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

Wed 27/5

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

2 stops20h 14m

Ottawa

Mon 29/6

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

2 stops14h 30m

C$ 780

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 19/6

6:50 a.m.-10:05 p.m.

2 stops20h 15m

Ottawa

Sun 28/6

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

1 stop19h 55m

C$ 790

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 19/6

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

2 stops14h 48m

Ottawa

Tue 30/6

6:05 a.m.-9:25 p.m.

1 stop10h 20m

C$ 790

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 19/6

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

2 stops14h 48m

Ottawa

Mon 29/6

10:00 a.m.-10:40 a.m.

1 stop19h 40m

C$ 790

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sat 20/6

6:50 a.m.-10:05 p.m.

2 stops20h 15m

Ottawa

Mon 29/6

6:05 a.m.-6:55 a.m.

2 stops19h 50m

C$ 790

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 9/6

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

2 stops14h 48m

Ottawa

Mon 22/6

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

2 stops14h 15m

C$ 802

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 9/10

5:45 p.m.-12:20 a.m.

1 stop11h 35m

Ottawa

Sun 18/10

6:25 p.m.-1:50 p.m.

2 stops14h 25m

C$ 958
Quickest round-trip

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 8/10

5:45 p.m.-12:20 a.m.

1 stop11h 35m

Ottawa

Sat 17/10

5:10 p.m.-10:45 a.m.

2 stops12h 35m

C$ 981

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 1/9

6:30 a.m.-3:00 p.m.

2 stops13h 30m

Ottawa

Mon 7/9

5:10 p.m.-6:35 p.m.

1 stop20h 25m

C$ 1,062

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sat 1/8

7:45 a.m.-4:38 p.m.

1 stop13h 53m

Ottawa

Sat 15/8

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

2 stops14h 30m

C$ 1,158

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/4

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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$ 907). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of C$ 1,280). 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 25 April 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 25 April 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Ottawa, such as Air France,Air Canada, andLufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air France
7.4
Good
1,579 reviews
Check prices

Comfort

7.4

Entertainment

7.0

Boarding

7.5

Crew

8.1

Food

7.0

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
1,579 reviews
Air France
7.4
Good
1,579 reviews
Check prices

Comfort

7.4

Entertainment

7.0

Boarding

7.5

Crew

8.1

Food

7.0

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
10,966 reviews
Air France
7.4
Good
1,579 reviews
Check prices

Comfort

7.4

Entertainment

7.0

Boarding

7.5

Crew

8.1

Food

7.0

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.
Lufthansa
6.8
Okay
7,948 reviews
Air France
7.4
Good
1,579 reviews
Check prices

Comfort

7.4

Entertainment

7.0

Boarding

7.5

Crew

8.1

Food

7.0

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 are 2 daily inbound flights from London Heathrow from 3 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?

    Lufthansa, at C$ 725, was found to be the cheapest airline from London Heathrow Airport to Ottawa.Alternate airlines to your destination round-trip include Air France and Air Canada. Users have found that Lufthansa is 29% 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%), United Airlines (79%) and Air Canada (79%).

  • 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$ 1,065, our data indicates the cheapest price to be C$ 803. The most popular route (London Heathrow - Ottawa), is priced around C$ 706.

  • 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$ 907). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of C$ 1,280). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from Heathrow to Ottawa

Discover the top 3 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 25 April 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapestC$ 725AverageC$ 940FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapestC$ 788AverageC$ 1,325FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air CanadaCheapestC$ 803AverageC$ 1,014FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.