£184 Find Cheap Flights from Ottawa to the United Kingdom – 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 the United Kingdom departing on 15/9. 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, 0 bags

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Cheap Flights from Ottawa to the United Kingdom

Cheapest return prices found by our users on KAYAK in the last 72 hours
London
London2 stops£340
Manchester
Manchester3 stops£451
Edinburgh
Edinburgh2 stops£355
Belfast
Belfast2 stops£710
London
London2 stops£340
Manchester
Manchester3 stops£451
Edinburgh
Edinburgh2 stops£355
Belfast
Belfast2 stops£710

Book Cheap Ottawa to the United Kingdom Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Ottawa to the United Kingdom 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 return flight deals from Ottawa to the United Kingdom

Fri, 18 Sep - Sat, 3 Oct
Aer Lingus Logo
14:00 - 08:05
YOW
-
LHR
13h 05m
2 stops
Aer Lingus Logo
07:40 - 21:15
LHR
-
YOW
18h 35m
2 stops
£340Aer Lingus
Sun, 27 Sep - Sun, 4 Oct
Air Transat Logo
14:15 - 09:50
YOW
-
LGW
14h 35m
1 stop
Air Transat Logo
11:35 - 17:35
LGW
-
YOW
11h 00m
1 stop
£347Air Transat
Sun, 6 Sep - Sun, 13 Sep
Air Transat Logo
14:15 - 09:50
YOW
-
LGW
14h 35m
1 stop
Air Transat Logo
09:40 - 12:40
LGW
-
YOW
8h 00mdirect
£348Air Transat
Sun, 20 Sep - Fri, 2 Oct
Multiple Airlines Logo
18:25 - 10:40
YOW
-
EDI
35h 15m
2 stops
Multiple Airlines Logo
09:15 - 00:20
EDI
-
YOW
20h 05m
2 stops
£355Multiple Airlines
Sun, 20 Sep - Sat, 3 Oct
Multiple Airlines Logo
18:25 - 08:30
YOW
-
EDI
33h 05m
2 stops
Multiple Airlines Logo
08:35 - 19:10
EDI
-
YOW
15h 35m
2 stops
£360Multiple Airlines
Tue, 25 Aug - Mon, 31 Aug
Porter Airlines Logo
08:40 - 06:50
YOW
-
GLA
17h 10m
1 stop
Porter Airlines Logo
08:35 - 14:55
GLA
-
YOW
11h 20m
1 stop
£425Porter Airlines
Fri, 18 Sep - Sat, 26 Sep
Air Canada Logo
14:35 - 06:30
YOW
-
LHR
10h 55m
1 stop
Air Canada Logo
17:40 - 01:35
LHR
-
YOW
12h 55m
1 stop
£457Air Canada
Fri, 18 Sep - Sat, 26 Sep
Air Canada Logo
14:35 - 06:30
YOW
-
LHR
10h 55m
1 stop
Air Canada Logo
14:10 - 17:05
LHR
-
YOW
7h 55mdirect
£459Air Canada
Tue, 15 Sep - Wed, 23 Sep
Porter Airlines Logo
08:40 - 06:50
YOW
-
GLA
17h 10m
1 stop
Porter Airlines Logo
08:35 - 14:55
GLA
-
YOW
11h 20m
1 stop
£465Porter Airlines
Thu, 15 Oct - Sun, 18 Oct
United Airlines Logo
19:30 - 17:20
YOW
-
MAN
40h 50m
2 stops
United Airlines Logo
10:35 - 13:59
MAN
-
YOW
56h 24m
2 stops
£530United Airlines
Booking Insights

KAYAK's insights & trends for Ottawa to the United Kingdom flights

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

What is the cheapest Ottawa to the United Kingdom flight route?

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

The cheapest ticket to the United Kingdom from Ottawa found in the last 5 days was to London, at £337 return. The most popular route is from Ottawa (YOW) to London Gatwick Airport (LGW), and the cheapest return airline ticket found on this route in the last 5 days was £337.

What is the cheapest time of day to fly to the United Kingdom?

The average price for all round-trip flights from Ottawa to the United Kingdom depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to the United Kingdom is generally at night, when retur flights cost £583 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally in the evening, which is peak travel time and where the average cost of a ticket is £662.

Can I save money by flying with a stopover from Ottawa to the United Kingdom?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 2 stops stopover the cheapest option at £637 on average.

What is the cheapest month to fly from Ottawa to the United Kingdom?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ottawa to the United Kingdom, 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 the United Kingdom is January, when tickets cost £496 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of return tickets is £686 and £649 respectively.

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

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

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

How far in advance should I book a flight from Ottawa to the United Kingdom?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ottawa to the United Kingdom, 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 a flight from Ottawa to the United Kingdom, you should book around 2 weeks before departure, which saves you about 10% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know - Cheap tickets from Ottawa to the United Kingdom

Low season

January

Cheapest flight

£184
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly (7% more expensive on average)
Flight from Ottawa to London Gatwick Airport

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from Ottawa to the United Kingdom?

    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 the United Kingdom.

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Ottawa to the United Kingdom with an airline and back with another airline.

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

    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 from Ottawa to the United Kingdom 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 Ottawa to the United Kingdom

 
Need help choosing which airline to fly with from Ottawa to the United Kingdom? 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 566 reviews
8.0Boarding
7.1Entertainment
7.3Comfort
8.5Crew
6.8Food
Airline reviews

The crew was great. There was no entertainment and the internet wasn't working. We sat in the run way for a LONG time which is always so upsetting. The seats are very close together and the flights are completely full which makes for a tough flight. Flying is just an uncomfortable experience.

6.0 GoodAnonymous, Jul 2026
YYZ - SFO
Read more Air Transat reviews

The crew was great. There was no entertainment and the internet wasn't working. We sat in the run way for a LONG time which is always so upsetting. The seats are very close together and the flights are completely full which makes for a tough flight. Flying is just an uncomfortable experience.

Very kind crew. Vegetarian food better than usual. Prompt take off. Entertainment worked well. Could always do with more room!

The dinner was bland and boring, but the economy seats were surprisingly comfortable. The flight was very packed.

Great crew and entertaining Captain. Seats were not what we had expected based on my booking but things worked out in the end. Of course, like all airlines these days not enough leg or elbow room.

The entertainment system was down; food by purchase only; several people did not receive their luggage. No one answers at the local office or online about the luggage.

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.

It’s ok just the boarding point is far too far

They are a sister company with Air Transat and the two companies do not work well together. If you have any issues the two companies will blame each other and you will miss your flights. The help line does not help

Flight delayed any hour and couple of big gate changes

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

The flight was good. My luggage didn’t land with me when I arrived in Columbus. So grateful I was able to get my luggage back within the 2 hours😍👍.

It was out first time flying Air Canada and it was ok, comfort-wise. I hope airlines are able to get a quiet room installed for young children flying. Screaming and crying the whole time in business class is quite unfortunate. That was the only thing that really messed up the experience.

Staff were very friendly. Plane left on time and arrived on time.

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.

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

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

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.

Due to the strike by AC flight attendants, my flight was cancelled. Very disappointing! A refund is being processed. This was not a Kayak issue. I will be sure to come back to Kayak in the future.

Staff was very courteous and kept things organized. We will definitely use Air Canada for further travel

Everything you need to know for your flight from Ottawa to the United Kingdom

Information on your arrival and departure airports