YOW - YXU

C$ 295 Find Cheap Flights from Ottawa to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ottawa to London departing on 26/4. 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 London

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

Cheapest round-trip
C$ 548
Overall average: C$ 1,181
WestJet
Mon 8/6Sun 21/6
YOW - YXU • 1 stop
Cheapest one-way flights
C$ 295
Typical prices: C$ 396-C$ 779
Air Canada
Sun 26/4
YOW - YXU • 1 stop
Top airlines
WestJet
Cheapest • from C$ 548 (round-trip)
Air Canada
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
October
Cheapest • 31% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to London!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ottawa to London (YOW-YXU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ottawa to London 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 Ottawa to London

Mon, 8 Jun - Sun, 21 Jun
WestJet Logo
12:25 p.m. - 1:45 p.m.
YOW
-
YXU
25h 20m
1 stop
WestJet Logo
2:35 p.m. - 12:20 a.m.
YXU
-
YOW
9h 45m
2 stops
C$ 548WestJet
Mon, 8 Jun - Sun, 21 Jun
WestJet Logo
12:25 p.m. - 1:45 p.m.
YOW
-
YXU
25h 20m
1 stop
WestJet Logo
2:35 p.m. - 12:15 p.m.
YXU
-
YOW
21h 40m
1 stop
C$ 575WestJet
Mon, 30 Mar - Wed, 1 Apr
Air Canada Logo
4:15 p.m. - 9:18 p.m.
YOW
-
YXU
5h 03m
1 stop
Air Canada Logo
9:40 a.m. - 1:14 p.m.
YXU
-
YOW
3h 34m
1 stop
C$ 581Air Canada
Mon, 8 Jun - Sun, 21 Jun
WestJet Logo
5:55 a.m. - 1:45 p.m.
YOW
-
YXU
31h 50m
2 stops
WestJet Logo
2:35 p.m. - 12:20 a.m.
YXU
-
YOW
9h 45m
2 stops
C$ 584WestJet
Tue, 24 Feb - Tue, 24 Feb
Air Canada Logo
5:00 a.m. - 8:46 a.m.
YOW
-
YXU
3h 46m
1 stop
Air Canada Logo
5:40 p.m. - 9:18 p.m.
YXU
-
YOW
3h 38m
1 stop
C$ 607Air Canada
Mon, 6 Apr - Sun, 12 Apr
WestJet Logo
5:45 p.m. - 6:35 a.m.
YOW
-
YXU
12h 50m
1 stop
WestJet Logo
8:10 p.m. - 6:23 p.m.
YXU
-
YOW
22h 13m
2 stops
C$ 627WestJet
Thu, 19 Feb - Tue, 24 Feb
Air Canada Logo
12:00 p.m. - 5:05 p.m.
YOW
-
YXU
5h 05m
1 stop
Air Canada Logo
9:25 a.m. - 3:23 p.m.
YXU
-
YOW
5h 58m
1 stop
C$ 630Air Canada
Wed, 1 Apr - Sun, 12 Apr
Multiple Airlines Logo
6:55 p.m. - 6:35 a.m.
YOW
-
YXU
11h 40m
1 stop
Multiple Airlines Logo
8:10 p.m. - 6:23 p.m.
YXU
-
YOW
22h 13m
2 stops
C$ 633Multiple Airlines
Wed, 1 Apr - Thu, 16 Apr
Multiple Airlines Logo
6:55 p.m. - 6:35 a.m.
YOW
-
YXU
11h 40m
1 stop
Multiple Airlines Logo
8:10 p.m. - 6:23 p.m.
YXU
-
YOW
22h 13m
2 stops
C$ 638Multiple Airlines
Sun, 5 Apr - Sun, 12 Apr
Multiple Airlines Logo
6:55 p.m. - 6:35 a.m.
YOW
-
YXU
11h 40m
1 stop
Multiple Airlines Logo
8:10 p.m. - 6:23 p.m.
YXU
-
YOW
22h 13m
2 stops
C$ 641Multiple Airlines
Booking Insights

KAYAK's insights & trends for Ottawa to London flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ottawa to London, 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 Ottawa to London is October, where tickets cost C$ 585 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is C$ 1,181 and C$ 1,139 respectively.

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Good to know

Low seasonNovember
Cheapest flightC$ 295
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly (39% more expensive on average)
Flight from Ottawa to London

When to book flights from Ottawa to London

Are your dates flexible? Find out the best times to travel from Ottawa to London 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 Ottawa to London

  • What is the cheapest flight from Ottawa to London?

    In the last 3 days, the lowest price for a flight from Ottawa to London was C$ 295 for a one-way ticket and C$ 548 for a round-trip.

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

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ottawa to London?

    Star Alliance is the only airline alliance operating flights between Ottawa and London.

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

    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 Ottawa to London.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Ottawa 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 Ottawa to London?

    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 London with an airline and back to Ottawa with another airline.

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

    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 London from Ottawa up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Ottawa to London

 
See real verified KAYAK customer reviews for airlines flying from Ottawa to London. 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 Ottawa to London? 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.
7.1
Air CanadaOverall score based on 10699 reviews
6.8Entertainment
6.3Food
7.1Comfort
7.8Crew
7.3Boarding
Airline reviews

Had to cancel the flight because there was a 14 hour layover before the flight. Unacceptable.

2.0 MediocreAnonymous, Feb 2026
YYZ - YXU
Read more Air Canada reviews

Had to cancel the flight because there was a 14 hour layover before the flight. Unacceptable.

It was a very small plane and was ok. No food or entertainment so there should be an option for NA.

I travelled in Business class for the first time and wish I could do that again.

We were happy with the service and cost of checking a bag

I like the free air Canada wifi and being able to watch things on there. The basic snacks are good, just wish I could have both. If I’m being really picky, the flight attendant who filled my drink, filled it half with fizz and didn’t take the second to let it go down and add more, so I got maybe half a cup of pop.

Too many delays. Seats too small. A budget airline. Will never fly Air Canada again.

On board wifi or other entertainment. Landlines option was good but ran late to Pearson

Flying with Air Canada is still better than the discount airlines like Flair. The seats are more comfortable and the on-board entertainment is better, with each seat having a built in screen and lots of content to watch. Onboard WIFI is also great to have, as well as plugs for charging. I think passengers in general are getting better at not bringing too much luggage onboard, and Air Canada is better at managing this without customers feeling like they are being taken advantage of with extra fees. I have travelled on different airlines and all seem to be loading faster, with fewer people bringing both a carry on and a personal item. Now I just bring one item and it fits under the seat so I don't need to worry about finding a place in the overhead bins. Overall, across the industry, asking customers to pay for carry on baggage is fair because it allows customers to only pay for what they need, and it helps to keep the planes on time. Kudos to Air Canada for its approach - the desired result is achieved without customers feeling that they are being surprised and caught with unexpected extra fees.

Flight was fine and on time. But no entertainment system and little leg room.

What a silly survey to send - all AC flights were cancelled due to the strike so of course we did not fly yesterday

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

Information on your arrival and departure airports

Ottawa (YOW)
London (YXU)