YOW - YXU

C$ 220 Find Cheap Flights from Ottawa to London – Compare and Save

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 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, 0 bags

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Everything you should know

Cheapest round-trip
C$ 495
Typical prices: C$ 640-C$ 728
WestJet
Wed 16/9Wed 23/9
YOW - YXU • 1 stop
Cheapest one-way flights
C$ 220
WestJet
Mon 17/8
YOW - YXU • 1 stop
Top airlines
Cheapest • from C$ 495 (round-trip)
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Ottawa and London. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 31% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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

Wed, 16 Sep - Wed, 23 Sep
WestJet Logo
8:15 p.m. - 5:20 a.m.
YOW
-
YXU
9h 05m
1 stop
WestJet Logo
6:10 a.m. - 5:15 p.m.
YXU
-
YOW
11h 05m
1 stop
C$ 495WestJet
Thu, 20 Aug - Thu, 27 Aug
WestJet Logo
12:25 p.m. - 1:50 p.m.
YOW
-
YXU
25h 25m
1 stop
WestJet Logo
8:40 p.m. - 5:35 a.m.
YXU
-
YOW
8h 55m
1 stop
C$ 502WestJet
Thu, 20 Aug - Thu, 27 Aug
Multiple Airlines Logo
4:00 p.m. - 1:50 p.m.
YOW
-
YXU
21h 50m
2 stops
Multiple Airlines Logo
8:40 p.m. - 5:35 a.m.
YXU
-
YOW
8h 55m
1 stop
C$ 523Multiple Airlines
Fri, 11 Sep - Sun, 13 Sep
WestJet Logo
8:15 p.m. - 5:20 a.m.
YOW
-
YXU
9h 05m
1 stop
WestJet Logo
6:10 a.m. - 3:20 p.m.
YXU
-
YOW
9h 10m
1 stop
C$ 533WestJet
Sat, 22 Aug - Sat, 29 Aug
WestJet Logo
12:25 p.m. - 1:50 p.m.
YOW
-
YXU
25h 25m
1 stop
WestJet Logo
5:55 p.m. - 11:35 a.m.
YXU
-
YOW
17h 40m
2 stops
C$ 569WestJet
Fri, 25 Sep - Sat, 3 Oct
WestJet Logo
8:15 p.m. - 5:20 a.m.
YOW
-
YXU
9h 05m
1 stop
WestJet Logo
6:10 a.m. - 5:15 p.m.
YXU
-
YOW
11h 05m
1 stop
C$ 571WestJet
Wed, 23 Sep - Tue, 29 Sep
WestJet Logo
8:15 p.m. - 5:20 a.m.
YOW
-
YXU
9h 05m
1 stop
WestJet Logo
6:10 a.m. - 5:15 p.m.
YXU
-
YOW
11h 05m
1 stop
C$ 583WestJet
Wed, 23 Sep - Tue, 29 Sep
WestJet Logo
8:15 p.m. - 5:20 a.m.
YOW
-
YXU
9h 05m
1 stop
WestJet Logo
6:10 a.m. - 5:15 p.m.
YXU
-
YOW
11h 05m
1 stop
C$ 586WestJet
Thu, 24 Sep - Thu, 24 Sep
Air Canada Logo
5:10 a.m. - 9:20 a.m.
YOW
-
YXU
4h 10m
1 stop
Air Canada Logo
3:30 p.m. - 9:20 p.m.
YXU
-
YOW
5h 50m
1 stop
C$ 762Air Canada
Thu, 29 Oct - Wed, 11 Nov
Air Canada Logo
9:10 a.m. - 2:47 p.m.
YOW
-
YXU
5h 37m
1 stop
Air Canada Logo
3:25 p.m. - 7:45 p.m.
YXU
-
YOW
4h 20m
1 stop
C$ 776Air Canada
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.

How much is a round-trip flight from Ottawa to London, Ontario?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ottawa to London, Ontario departing in September.

Flight prices are below average for this route right now.

Flights to London, Ontario from Ottawa usually cost between C$ 1,023 and C$ 1,344 in September.
The lowest price found in the past 5 days was C$ 495 on WestJet (16 Sep–23 Sep).

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 July, where tickets cost C$ 558 (return) on average. On the other hand, the most expensive months are November and December, where the average cost of round-trip tickets is C$ 1,208 and C$ 1,174 respectively.

Good to know

Low season

May

Cheapest flight

C$ 220
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly and prices are also 25% lower 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 5 days, the lowest price for a flight from Ottawa to London was C$ 220 for a one-way ticket and C$ 495 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 11394 reviews
6.3Food
7.1Comfort
6.8Entertainment
7.3Boarding
7.8Crew
Airline reviews

Air traffic delay meant boarding started, then plane was evacuated and passengers sent back to the terminal for 1 hour. Very little information shared.

4.0 OkayMark, May 2026
YOW - YYZ
Read more Air Canada reviews

Air traffic delay meant boarding started, then plane was evacuated and passengers sent back to the terminal for 1 hour. Very little information shared.

The crew was amazing! I was a bit surprised and disappointed that there was not wifi available for personal use. The only thing I would change would be the seat cushions. They are not comfortable at all for long flights.

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

They lost my checked in luggage, why do I pay for my cargo not arriving at the same destination as me?

Poor planning meant the plane was delayed an hour, then a thunder storm started and the ground staff couldn't work. Eventual arrival in Santiago was 3 hours late resulting in missed connections and the need to buy new tickets.

Air Canada is the worst but the only option for my route

Delays, cancelled, re-booked, cancelled, re-booked. Arrived too late to do pre-paid tour. So tired went to bed early

The flight is very short, may be a little snack can be offered

Well you cancelled our direct flight to Austin from Toronto granted you got us on another flight but sent us to Denver then onto Austin delaying our arrival time in Austin by 7 hrs I was flying with 3 other people none of us were happy with our Air Canada experience

They canceled my flight last minute, no hotel provided and they rescheduled Sunday night, hope they refunded some money

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

Information on your arrival and departure airports