LON - YOW

C$ 537 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 23/12. 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, 0 bags

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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Flight 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

Fri, 21 Nov - Sat, 24 Jan
Multiple Airlines Logo
9:00 a.m. - 5:42 p.m.LHR-YOW
13h 42m2 stops
Multiple Airlines Logo
6:05 p.m. - 8:35 p.m.YOW-LHR
21h 30m2 stops
C$ 835Multiple Airlines
Find Deal
Fri, 28 Nov - Wed, 28 Jan
Multiple Airlines Logo
6:00 a.m. - 7:18 p.m.LHR-YOW
18h 18m2 stops
Multiple Airlines Logo
10:20 a.m. - 7:10 a.m.YOW-LHR
15h 50m2 stops
C$ 843Multiple Airlines
Find Deal
Thu, 13 Nov - Thu, 20 Nov
Air Canada Logo
6:50 a.m. - 9:42 a.m.LHR-YOW
31h 52m2 stops
Air Canada Logo
12:05 p.m. - 8:35 p.m.YOW-LHR
27h 30m2 stops
C$ 852Air Canada
Find Deal
Wed, 19 Nov - Mon, 24 Nov
Multiple Airlines Logo
1:25 p.m. - 5:16 p.m.LHR-YOW
32h 51m2 stops
Multiple Airlines Logo
4:00 p.m. - 7:10 a.m.YOW-LHR
10h 10m1 stop
C$ 857Multiple Airlines
Find Deal
Sun, 30 Nov - Sun, 7 Dec
Air Canada Logo
9:00 a.m. - 4:23 p.m.LHR-YOW
36h 23m2 stops
Air Canada Logo
8:30 a.m. - 7:10 a.m.YOW-LHR
17h 40m2 stops
C$ 860Air Canada
Find Deal
Sat, 29 Nov - Sat, 6 Dec
Air Transat Logo
11:40 a.m. - 12:39 a.m.LGW-YOW
17h 59m1 stop
Air Transat Logo
6:55 p.m. - 9:45 a.m.YOW-LGW
9h 50m1 stop
C$ 883Air Transat
Find Deal
Sun, 30 Nov - Sun, 7 Dec
Air Transat Logo
11:40 a.m. - 6:24 p.m.LGW-YOW
11h 44m1 stop
Air Transat Logo
6:45 a.m. - 9:45 a.m.YOW-LGW
22h 00m1 stop
C$ 884Air Transat
Find Deal
Thu, 13 Nov - Thu, 20 Nov
Air France Logo
6:20 a.m. - 3:10 p.m.LHR-YOW
13h 50m1 stop
Air France Logo
5:20 p.m. - 8:00 a.m.YOW-LHR
9h 40m1 stop
C$ 906Air France
Find Deal
Thu, 11 Dec - Fri, 9 Jan
Lufthansa Logo
7:40 a.m. - 6:38 p.m.LHR-YOW
15h 58m2 stops
Lufthansa Logo
9:55 p.m. - 9:20 a.m.YOW-LHR
6h 25mdirect
C$ 953Lufthansa
Find Deal
Mon, 9 Mar - Mon, 22 Jun
Lufthansa Logo
11:30 a.m. - 1:38 a.m.LHR-YOW
18h 08m2 stops
Lufthansa Logo
6:55 p.m. - 6:30 a.m.YOW-LHR
6h 35mdirect
C$ 967Lufthansa
Find Deal

Everything you should know

Our travellers' advice
AI-generated summary based on content written by travel experts
Heathrow's long security lines mean arriving early.
Air Canada offers Wi-Fi on select flights to Ottawa.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Air Canada
Cheapest • from C$ 852 (round-trip)
Air Transat
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
LHR-YOW
Cheapest
LHR-YOW
Most popular
Insights
Insights
Insights
Insights
When to book
4 weeks
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 10% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 14% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Direct flights
3 days a week
There are direct flights from London to Ottawa 3 days a week: Wed, Fri, Sun.
Direct flights
Direct flights
Direct flights
Direct flights
Cheapest round-trip
C$ 835
Overall average: C$ 1,007
Multiple Airlines
Fri 21/11Sat 24/1
LHR - YOW • 2 stops
Cheapest direct flights
C$ 947
Air Canada
Sun 30/11Sun 7/12
LHR - YOW • Direct
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We hope you love your trip to Ottawa!
Booking Insights

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?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from London to Ottawa costs C$ 894 on the route between London Heathrow Airport (LHR) and Ottawa (YOW). It is also the most popular route.

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 Wednesday 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$ 880 (return) on average. On the other hand, the most expensive months are August and December, where the average cost of round-trip tickets is C$ 1,398 and C$ 1,251 respectively.

Can I save money by flying with a layover from London to Ottawa?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of C$ 1,022, prices are generally cheapest when you fly direct.

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 4 weeks before departure, which saves you about 10% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

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
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
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
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
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
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
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

Good to know

Low seasonJanuary
Cheapest flightC$ 537
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly (11% more expensive on average)
Flight from London Heathrow 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$ 537 for a one-way ticket and C$ 835 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?

    Lufthansa, 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?

    SkyTeam, and Star Alliance are the airline alliances operating flights between London and Ottawa, with SkyTeam 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 Wednesday, Friday, and Sunday.

  • 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$ 954 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$ 1,026 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$ 1,055 or less one-way and C$ 894 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

Wednesday

Air Canada

Air Canada

Friday

Air Canada

Air Canada

Sunday

Air Canada

Air Canada

See more nonstop flights

Direct returns

Ottawa to London

Wednesday

Air Canada

Air Canada

Friday

Air Canada

Air Canada

Sunday

Air Canada

Air Canada

See more nonstop flights

Reviews of the top 3 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 470 reviews
8.5Crew
6.8Food
7.4Comfort
7.9Boarding
7.1Entertainment
Airline reviews

It was very good but no tv but the experience was great

8.0 ExcellentPatricia M, Oct 2025YUL - YEG
Read more Air Transat reviews

It was very good but no tv but the experience was great

Thank you for making my first experience very enjoyable. You made it all very pleasant

Great flight great seats will absolutely fly with you again

Porter airlines was good. I didn't have the best experience when booking through airfare assist however, as I got no final confirmation from them that the flight was booked until I called them. Even then, the confirmation code they gave me was incorrect and couldn't be used for check in. On a positive note airfare assist was actually picked up the phone relatively quickly when calling

The flight crew were very good, polite, and professional. Unfortunately, the rest of the experience left much to be desired. The food was extremely bland—almost tasteless. We chose the non vegetarian .The lasagna was just plain pasta with a tiny garnish and no seasoning. It felt like eating starch only, The bigger issue was with luggage and space. We boarded with three tickets, and while the seats in front of us were nearly empty, all the overhead compartments had already been filled by passengers boarding to the back. This left us and many others with no overhead storage for our carry-ons. Our bags couldn’t fit well under the seats either, which meant we lost the little legroom we had. The result was a horrible, cramped experience—sore knees, no space to stretch, and no way to rest or sleep comfortably. According to the crew this was a rather normal thing. It is obviously normal that people board with handbag and carry on but they should be only allowed to use their overhead compartment and under their seat not the way it is managed that all the spaces in the front of the plane being occupied by the people sitting way back in the plane.

Nice complete meal included and great services. Plus the plane was very clean.

Everything was horrible. On the day of my departure, I was denied check-in and boarding because my reservation only showed one of my last names, while my passport contains both. This minor discrepancy could have been easily corrected, but I was informed that no adjustment could be made. As a result, I lost not only my outbound flight but also my return flight and had to purchase a new ticket at a significantly higher cost.

This has been the worst experience I’ve ever had. Basically, I lost my round-trip tickets because one of my last names was missing, and you didn’t allow me to correct it. I had to purchase a full ticket again. Once I get home, I will start legal proceedings against you.

The crew were polite and courteous. The Pilot did an excellent landing. It was very smooth and gentle. My only regret is that I was charged twice for my luggage . The attendant gave me no receipt . I didn't realize until I was about to board. How can this be resolved? Thank you.

Very smooth flights Toronto to Rome and return. Crews were great, food was fine but very narrow seats and limited leg room. Aisle seats on our return helped with a bit more space.

I wish they gave the earphones earlier rather than when we are already in flight.

Very nice staff members are very nice and friendly helpful

We were a little late pushing back ,but arrived a head of time.

The 787 Dreamliner that we flew on was relatively new and a nice aircraft. We flew on a 777 which was noticeably older and the seats were average” but the 787 was very nice, especially for the price. No window blinds anymore, instead high tech adjustable polychromatic glass!! Nice.

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

Paid for exit row at the back of the plane. Window seat with lots of leg space. Food was inedible (as usual). Brought my own.

Missed flight. Requested assistance for my father and he did not receive it in Paris.

Business Class was very comfortable and the food and service was top notch.

The crew was very nice. The equipment on the 747 felt old.

As expected. Would have appreciated a 3-day headsup reminder as a reassurance that all is well.

Poor food on flight between Toronto and Stockholm Airport Toronto too crowded

The plane was late (as was my flight out from Birmingham the day before)

Business Class Configuration was excellent- private and comfortable. Crew and service were excellent. I really appreciate Air Canada cabin pressurization equal to an altitude of 8,000ft. Upon landing, I felt more alert and refreshed than typical for international flights

Hard to use tables and TV screens interfere with the enjoyment of flight experience. Other than that it was a smooth and comfortable ride and we were well taken care of.

Excellent flight overall. Lufthansa Business service was excellent with great cabin crew and very good food and wines. The seat comfort was excellent. Only a slight reduction in score due to the 747-400 being a relatively loud aircraft these days.

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

Information on your arrival and departure airports

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