LON - YOW

C$ 543 Find Cheap Flights from London to Ottawa

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Ottawa departing on 17/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Ottawa

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Ottawa, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Ottawa, as well as popular online travel agencies
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Flights Deals

Cheap Flights from London to Ottawa (LON-YOW)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to Ottawa that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from London to Ottawa

Sun, 14 Sep - Tue, 23 Sep
Air France Logo
6:15 a.m. - 3:00 p.m.LHR-YOW
13h 45m1 stop
Air France Logo
5:15 p.m. - 1:45 p.m.YOW-LHR
15h 30m1 stop
C$ 736Air France
Find Deal
Wed, 1 Oct - Thu, 9 Oct
Air France Logo
3:20 p.m. - 12:22 a.m.LHR-YOW
14h 02m2 stops
Air France Logo
5:15 p.m. - 1:45 p.m.YOW-LHR
15h 30m1 stop
C$ 747Air France
Find Deal
Thu, 3 Jul - Thu, 17 Jul
Virgin Atlantic Logo
6:15 a.m. - 3:05 p.m.LHR-YOW
13h 50m1 stop
Virgin Atlantic Logo
5:15 p.m. - 8:00 a.m.YOW-LHR
9h 45m1 stop
C$ 759Virgin Atlantic
Find Deal
Thu, 3 Jul - Thu, 10 Jul
Virgin Atlantic Logo
6:15 a.m. - 3:05 p.m.LHR-YOW
13h 50m1 stop
Virgin Atlantic Logo
5:15 p.m. - 10:30 a.m.YOW-LHR
12h 15m1 stop
C$ 774Virgin Atlantic
Find Deal
Sun, 14 Sep - Tue, 23 Sep
 Logo
6:15 a.m. - 3:00 p.m.LHR-YOW
13h 45m1 stop
 Logo
5:15 p.m. - 10:45 a.m.YOW-LHR
12h 30m2 stops
C$ 777
Find Deal
Wed, 17 Sep - Tue, 23 Sep
 Logo
5:50 p.m. - 12:22 a.m.LHR-YOW
11h 32m1 stop
 Logo
5:15 p.m. - 4:35 p.m.YOW-LHR
18h 20m1 stop
C$ 781
Find Deal
Sat, 13 Sep - Wed, 24 Sep
Air Transat Logo
9:40 a.m. - 8:01 p.m.LGW-YOW
15h 21m1 stop
Air Transat Logo
5:05 p.m. - 10:45 a.m.YOW-LGW
12h 40m1 stop
C$ 877Air Transat
Find Deal
Thu, 3 Jul - Tue, 15 Jul
Air Transat Logo
10:00 a.m. - 9:11 p.m.LGW-YOW
16h 11m1 stop
Air Transat Logo
2:20 p.m. - 7:55 a.m.YOW-LGW
12h 35m1 stop
C$ 891Air Transat
Find Deal
Thu, 3 Jul - Thu, 10 Jul
Air Canada Logo
9:30 a.m. - 8:15 p.m.LHR-YOW
15h 45m1 stop
Air Canada Logo
6:55 p.m. - 6:30 a.m.YOW-LHR
6h 35mdirect
C$ 947Air Canada
Find Deal
Sat, 13 Sep - Fri, 26 Sep
Air Canada Logo
6:50 a.m. - 8:14 p.m.LHR-YOW
18h 24m2 stops
Air Canada Logo
10:30 a.m. - 6:30 a.m.YOW-LHR
15h 00m2 stops
C$ 956Air Canada
Find Deal
Expert advice

Expert advice for your flight from London to Ottawa

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Lufthansa

Lufthansa's Premium Economy offers 50% more space and an extra checked bag for long-haul comfort.


Enjoy in-flight entertainment with movies, TV, and e-Journals on long-haul Lufthansa flights.

Read more about Lufthansaby Jessica Macdonald
Air Canada

Air Canada's Signature Class features lie-flat seats and direct aisle access for long-haul flights.


Air Canada offers Wi-Fi on select flights; check availability five days before departure.

Read more about Air Canadaby Stefanie Waldek
Airports
LHR

Heathrow's long security lines mean arriving early is crucial. Consider flights outside peak times for a smoother experience.

Read more about LHRby Duncan Madden
YOW

At YOW, taxis and rideshares are convenient for reaching downtown Ottawa, about 20-25 minutes away.

Read more about YOWby Mark Stachiew
Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Jessica Macdonald

Jessica Macdonald

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on Air Canada

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Mark Stachiew

Mark Stachiew

Expert on YOW

Mark Stachiew

Mark Stachiew

Mark Stachiew has been exploring the world and writing about it for more than 30 years. His travel stories have appeared in numerous newspapers, magazines and online publications in Canada, the United States and beyond.

Read more
Duncan Madden

Duncan Madden

Expert on LHR

Duncan Madden

Duncan Madden

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Read more
Useful Info

KAYAK's insights & trends for London to Ottawa flights

Get data-powered insights and trends into flights from London to Ottawa to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest London to Ottawa flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from London to Ottawa.

Our data shows that the cheapest route for a return flight from London to Ottawa cost C$ 917 and was between London Heathrow Airport (LHR) and Ottawa (YOW). On average, the best prices are found if you fly this route. The average price for a return flight for this route is C$ 917.

What’s the cheapest day of the week to fly from London to Ottawa?

The average price of all round-trip flights from London to Ottawa clicked on KAYAK for each day over the last 12 months.

When flying from London to Ottawa, you should consider leaving on a Monday and avoid Saturdays if you are looking for the best rates. For your return to London, you’ll find the best rates on Thursdays and the most expensive ones on Sundays.

What is the cheapest month to fly from London to Ottawa?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Ottawa, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to Ottawa is January, where tickets cost C$ 849 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is C$ 1,358 and C$ 1,219 respectively.

How far in advance should I book a flight from London to Ottawa?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London to Ottawa, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London to Ottawa, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.


Good to know

Low seasonNovember
High seasonJuly
Cheapest flightC$ 543
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (20% more expensive on average)
Flight from London Gatwick Airport to Ottawa

When to book flights from London to Ottawa

Are your dates flexible? Find out the best times to travel from London to Ottawa based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to Ottawa

  • Can I take a direct flight between London airports and Ottawa Airport?

    Unfortunately you cannot fly directly between these two cities, but there are plenty of indirect routes you can take that only require one stop. You can fly, for example, with WestJet from London Gatwick Airport, which requires a transfer at Toronto Pearson International first. Alternatively, you could fly from Heathrow Airport with Air Canada, which also has a change in Toronto.

  • Can I fast track through security at London airports?

    If you are going to be in a rush at the airport, or should you be travelling at peak times, there is always the option to fast track through security. You need to book at least 24h in advance, and it will cost about £4 at Luton and around £5 at Stansted and Gatwick. For flights from Heathrow, it costs approximately £12.50 to fast track through security.

  • Can I change my currency at London airports?

    Once you have arrived at London airports for your flight, you can use currency exchange bureaus to change your money to Canadian Dollars. If you fly with Air Canada from Heathrow, you will most likely depart from Terminal 2, so you can access the Travelex bureaus and ATMs. From other airports with indirect flights, you can use an International Currency Exchange store or ATM. These are situated prominently in the terminals, so they will be easy to find.

  • How do I get to the city centre from Ottawa Airport?

    It’s easy to get from the airport to the centre as there are many methods of transport to choose from. You can get the Ottawa Airport Bus route 97 from the front of the building. This takes about 30min and costs approx. C$3.30 (£1.90). Alternatively, you could get a taxi from the taxi rank outside the front of the terminal building which takes about 15min and costs around C$29 (£16.75).

  • What is the cheapest flight from London to Ottawa?

    In the last 3 days, the lowest price for a flight from London to Ottawa was C$ 400 for a one-way ticket and C$ 542 for a round-trip.

  • Which airports will I be using when flying from London to Ottawa?

    When flying out of London you will be using one of these airports: London Gatwick, London Heathrow, or London Stansted. You will be landing at Ottawa.

  • Which airlines offer Wi-Fi service onboard planes from London to Ottawa?

    KLM, Air Canada, and Air France offer inflight Wi-Fi service on the London to Ottawa flight route.

  • Which aircraft models fly most regularly from London to Ottawa?

    The Boeing 787-9 Dreamliner is the aircraft model that flies most regularly on the London to Ottawa flight route.

  • Which airline alliances offer flights from London to Ottawa?

    Star Alliance, and oneworld are the airline alliances operating flights between London and Ottawa, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from London to Ottawa?

    You can catch a direct flight from London to Ottawa on on Monday, Wednesday, Thursday, and Saturday.

  • Which is the best airline for flights from London to Ottawa, Air Transat or Air Canada?

    The two airlines most popular with KAYAK users for flights from London to Ottawa are Air Transat and Air Canada. With an average price for the route of C$ 988 and an overall rating of 7.8, Air Transat is the most popular choice. Air Canada is also a great choice for the route, with an average price of C$ 1,001 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from London to Ottawa?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Ottawa.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Ottawa?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ottawa from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Ottawa?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ottawa with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Ottawa?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ottawa from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London to Ottawa

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 971 or less round-trip.
  • There are two airports in London that serve the route to Ottawa International Airport (YOW) with one stop. With London Heathrow (LHR) being located so centrally, it makes it very convenient for those travelling on business. Whereas Gatwick is great for those coming from the south of London.
  • Save time on the day of your flight by staying in an airport hotel the night before. If you're flying with Air Canada from Heathrow, then you can opt for a hotel such as Aerotel, which is only a short walk from Terminal 2. At Gatwick you could stay at Hilton, which is also close to the terminal building.
  • From Ottawa Airport, it is easy to continue your journey to nearby cities, such as Cornwall in about 70min and Kingston in about 2h, which makes it a great airport if you are planning to continue your journey to other Canadian cities.
  • Before your flight to Ottawa Airport, you can relax in a peaceful lounge, such as the Aspire Lounges in Heathrow Airport, Gatwick Airport and Luton Airport (LTN), which provide complimentary snacks and Wi-Fi from about £25 per person. The Escape lounge in Stansted (STN) offers similar benefits for about £20. However, there are no lounges at London city Airport.
  • You can call up 48h in advance of your flight to get mobility assistance at London Airports. They will either greet you on arrival or you can locate the assistance reception desks in the check-in zones of the departures hall.

Prefer to fly direct from London to Ottawa?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from London to Ottawa.
Find which airlines fly direct from London to Ottawa Airport, which days they fly and book direct flights.

Direct departures

London to Ottawa

Monday

Air Canada

Air Canada

Wednesday

Air Canada

Air Canada

Thursday

Air Canada

Air Canada

Saturday

Air Canada

Air Canada

See more nonstop flights

Direct returns

Ottawa to London

Monday

Air Canada

Air Canada

Wednesday

Air Canada

Air Canada

Thursday

Air Canada

Air Canada

Saturday

Air Canada

Air Canada

See more nonstop flights

Top airlines flying from London to Ottawa

 
See real verified KAYAK customer reviews for airlines flying from London to Ottawa. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Ottawa? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
Air TransatOverall score based on 398 reviews
8.5Crew
7.1Entertainment
7.4Comfort
6.8Food
7.9Boarding
Airline reviews

The flight and crew were good. Departure and arrival were timely. Check-in was professional and helpful in Malaga on return trip (same on outbound trip from Toronto). The ad before ach program was punishing - specifically for the internet/data service with the content creator that was showed twice in each ad pod. It was so annoying I made an effort to forget the name and would not use the service. Provide an opportunity to fast forward or skip the darn ads once they have been initially viewed.

8.0 ExcellentShazad, Jun 2025AGP - YUL
Read more Air Transat reviews

The flight and crew were good. Departure and arrival were timely. Check-in was professional and helpful in Malaga on return trip (same on outbound trip from Toronto). The ad before ach program was punishing - specifically for the internet/data service with the content creator that was showed twice in each ad pod. It was so annoying I made an effort to forget the name and would not use the service. Provide an opportunity to fast forward or skip the darn ads once they have been initially viewed.

Extra attention to kids, thank you, we appreciate! Perfect landing

Over the wing seat at emergency exit only downside people using lavatory have no respect and wait in the space

Flight delayed any hour and couple of big gate changes

The pilot came out and chatted with the passengers. He explained why there was a slight delay. The crew was excellent. Very helpful. I had to buy meals for my whole family and they were in different seats, so the crew had to deal with that. They were very pleasant and accommodating and did a great job!

We were unable to land in Liberia. It was not the airline’s fault, but we had to be diverted to SJO.

We had things stolen from our luggage, we also were refused an upgrade on a flight that was not full.

When we left, it wasn't Great . People were drinking heavily, very disrespectful Extremely loud, the entire trip. I think the crew members, should have get their attention. Coming back was great.

I sat in the club. The seeds were fantastic. The meal was great and Entertainment was good. The crew was fantastic. I recommend it to everybody.

The food was small portions and not fresh. I was seated at the back of the plane so by the time the cart approached me most of the food options were sold out. The cabin crew was fantastic however.

There was no food other than pretzels or a single cookie for a 4.5 hour flight. The in-flight entertainment system was not available on the back of the seat - instead I had to use my cell phone and the plane's wifi - which drained my battery even though my phone was plugged into the seat ahead of me and should have been charging - it did not. Very irritating.

the seats aren't the most comfy -- too little padding and I could feel whatever the passenger behind me was doing. Otherwise, it's all good.

This flight didn't happen for me because of overbooking.

Everything was simple and easy. The lady at the gate was super friendly, I wish I had her name to share. She's a little older, dark-haired. You can tell she likes her job and would be a great influence on any young people training with her.

During the pre-departure safety briefing, the flight attendants rushed through the mandatory safety announcements in both official languages, making it difficult for passengers to clearly understand the instructions. Given the importance of these messages for passenger safety, this lack of clarity was concerning. Perhaps use a recoded message to alleviate this concern. Additionally, the flight attendants appeared to lack the professional attentiveness typically expected during a flight. Rather than focusing on timely and courteous service, they seemed more engaged in personal conversations than in addressing the needs of passengers. I hope this feedback is taken constructively and helps in maintaining the high standards of professionalism and care that travelers expect from a national carrier: AC.

an absolute disaster and nightmare on air condition. IT WAS FREEZING!! everyone around us had hats, hoodies, gloves outdoor jackets on. that segment of the aircraft had a fault I assume...no amount of suggestion to turn down the air con helped. otherwise all good.

Everything was very good, short delay Toronto to Regina on my return to Canada but not a big deal. Thanks Kayak, Dr. Ian Stewart

Service is pretty good. Sandwiches have to be purchased but I’ve bought my own food. Seat was comfortable and various movies to chose from.

Boarded smoothly, took off on time. Entertainment screens were reliable and the movie library is abundant. Food better than wtst was served on the first leg of the journey by another airline.

Check in was incredibly fast, fukuoka was comfortable and crew very pleasant. The only negative was that the boarding was somewhat chaotic, but it so often is these days as airlines tend to board by how much you pay and not by what an orderly process of filling the plane would be.

Everything you need to know for your flight from London to Ottawa

Information on your arrival and departure airports

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