YXU - YOW

C$ 221 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 12/9. 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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Flight Deals

Cheap Flights from London to Ottawa (YXU-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

Wed, 10 Sep - Wed, 17 Sep
WestJet Logo
6:00 a.m. - 2:56 p.m.YXU-YOW
8h 56m1 stop
WestJet Logo
7:15 p.m. - 5:12 a.m.YOW-YXU
9h 57m1 stop
C$ 473WestJet
Find Deal
Thu, 18 Sep - Mon, 22 Sep
WestJet Logo
8:00 p.m. - 6:45 a.m.YXU-YOW
10h 45m1 stop
WestJet Logo
7:15 p.m. - 5:12 a.m.YOW-YXU
9h 57m1 stop
C$ 478WestJet
Find Deal
Wed, 10 Sep - Wed, 17 Sep
 Logo
8:00 p.m. - 1:00 p.m.YXU-YOW
17h 00m1 stop
 Logo
12:20 p.m. - 5:12 a.m.YOW-YXU
16h 52m2 stops
C$ 487
Find Deal
Tue, 23 Sep - Sun, 28 Sep
 Logo
8:00 p.m. - 1:00 p.m.YXU-YOW
17h 00m1 stop
 Logo
5:15 p.m. - 5:12 a.m.YOW-YXU
11h 57m2 stops
C$ 499
Find Deal
Fri, 5 Sep - Sun, 7 Sep
 Logo
8:00 p.m. - 1:00 p.m.YXU-YOW
17h 00m1 stop
 Logo
7:15 p.m. - 5:12 a.m.YOW-YXU
9h 57m1 stop
C$ 506
Find Deal
Thu, 18 Sep - Mon, 22 Sep
WestJet Logo
6:00 a.m. - 6:20 p.m.YXU-YOW
12h 20m1 stop
WestJet Logo
5:15 p.m. - 5:12 a.m.YOW-YXU
11h 57m2 stops
C$ 540WestJet
Find Deal
Thu, 8 Jan - Mon, 12 Jan
Air Canada Logo
5:45 a.m. - 9:18 a.m.YXU-YOW
3h 33m1 stop
Air Canada Logo
6:05 p.m. - 9:21 p.m.YOW-YXU
3h 16m1 stop
C$ 608Air Canada
Find Deal
Fri, 10 Oct - Mon, 13 Oct
Air Canada Logo
6:15 a.m. - 11:04 a.m.YXU-YOW
4h 49m1 stop
Air Canada Logo
5:55 p.m. - 9:27 p.m.YOW-YXU
3h 32m1 stop
C$ 641Air Canada
Find Deal
Sun, 21 Dec - Sun, 28 Dec
Air Canada Logo
5:40 p.m. - 11:08 p.m.YXU-YOW
5h 28m1 stop
Air Canada Logo
6:05 p.m. - 9:21 p.m.YOW-YXU
3h 16m1 stop
C$ 791Air Canada
Find Deal
Fri, 7 Nov - Mon, 10 Nov
Air Canada Logo
5:40 p.m. - 1:38 a.m.YXU-YOW
7h 58m1 stop
Air Canada Logo
5:15 a.m. - 8:46 a.m.YOW-YXU
3h 31m1 stop
C$ 1,263Air Canada
Find Deal
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’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.

Your flight ticket price will generally be cheaper if you fly to Ottawa on a Thursday and more expensive on a Sunday. On your return trip to London, you should consider flying back on a Thursday, and avoid Tuesdays for better deals.

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 October, where tickets cost C$ 724 (return) on average. On the other hand, the most expensive months are April and August, where the average cost of round-trip tickets is C$ 1,209 and C$ 1,121 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 6 weeks before departure, which saves you about 46% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonJuly
Cheapest flightC$ 221
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 London 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

  • 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$ 160 for a one-way ticket and C$ 343 for a round-trip.

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

    London airport is called London and the only airport in Ottawa is Ottawa.

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

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

  • Which airline alliances offer flights from London to Ottawa?

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

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

    The two airlines most popular with KAYAK users for flights from London to Ottawa are WestJet and Air Canada. With an average price for the route of C$ 558 and an overall rating of 7.2, WestJet is the most popular choice. Air Canada is also a great choice for the route, with an average price of C$ 981 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.

Reviews of the 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.
7.2
WestJetOverall score based on 3015 reviews
7.9Crew
7.4Boarding
6.2Food
6.1Entertainment
7.0Comfort
Airline reviews

Smooth flight Staff were courteous and welcoming upon entering and exiting the plane Pilot and crew provided frequent updates Leg space was not pleasant but manageable

10.0 ExcellentAnonymous, Aug 2025PUJ - YYZ
Read more WestJet reviews

Smooth flight Staff were courteous and welcoming upon entering and exiting the plane Pilot and crew provided frequent updates Leg space was not pleasant but manageable

Everything was good except I was a bit disappointed that I had to pay US $150 for bags.

Good value, minor delay due to waiting for inbound plane but they gave accurate information about wait time. Able to switch to a seat by my husband thanks to a kind flight attendant

Arrival at Comox from, London,ON 6 hours later... No bueano

Flight itself good .Landing at terminal3 and connections to terminal1,it is connections nightmare,specially for disable person

The seats very Uncomfortable, no meal and no entertainment for a 4Hours flight. Smooth Flight, Great Take off and landing. Superb crew!

Generally good. However. The flight left 30 mins behind schedule with no reason given.

Flight delayed, missed my pick-up had to Uber, plus missed dinner and medication, so sad!

The flight attendants were super! They created a cosy and warm flight atmosphere!

West Jet flight was cancelled and I was not notified. I found out when I tried to check in on-line. Spent 4 hours on the phone with West Jet and Just Fly trying to figure what happened.

Horrible, we were on a little DeHaviland 400 that was really small and shaky. I am 5' 4" and I had to duck my head to get in it felt like an old war plane.

At 6'2" the seat space was very cramped for economy. Otherwise good.

This was actually a bus ride to the KW airport. It was smooth and comfortable and on time.

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.

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

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.

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.

thee is no screen on these flights, smaller storage cabins scuffed my carry on, it was ok overall

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

Information on your arrival and departure airports

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