£182 Find Cheap Flights from Ottawa to the United Kingdom

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 17/6. 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
London1 stop£427
Manchester
Manchester3 stops£460
Edinburgh
Edinburgh3 stops£451
Belfast
Belfast2 stops£547
London
London1 stop£427
Manchester
Manchester3 stops£460
Edinburgh
Edinburgh3 stops£451
Belfast
Belfast2 stops£547

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 - Fri, 25 Sep
Multiple Airlines Logo
18:25 - 09:40
YOW
-
GLA
10h 15m
1 stop
Multiple Airlines Logo
21:25 - 20:00
GLA
-
YOW
27h 35m
2 stops
£374Multiple Airlines
Fri, 18 Sep - Sat, 26 Sep
Multiple Airlines Logo
18:25 - 09:40
YOW
-
GLA
10h 15m
1 stop
Multiple Airlines Logo
07:40 - 20:00
GLA
-
YOW
17h 20m
2 stops
£404Multiple Airlines
Fri, 4 Sep - Sat, 12 Sep
WestJet Logo
18:25 - 09:40
YOW
-
GLA
10h 15m
1 stop
WestJet Logo
11:00 - 00:20
GLA
-
YOW
18h 20m
1 stop
£414WestJet
Fri, 25 Sep - Fri, 2 Oct
Air Transat Logo
08:40 - 10:45
YOW
-
LGW
21h 05m
1 stop
Air Transat Logo
12:40 - 08:05
LGW
-
YOW
24h 25m
1 stop
£427Air Transat
Tue, 23 Jun - Sun, 28 Jun
Air Transat Logo
08:40 - 10:45
YOW
-
LGW
21h 05m
1 stop
Air Transat Logo
09:40 - 12:40
LGW
-
YOW
8h 00mdirect
£428Air Transat
Mon, 15 Jun - Thu, 18 Jun
Lufthansa Logo
16:00 - 08:35
YOW
-
LHR
11h 35m
1 stop
Lufthansa Logo
09:30 - 12:25
LHR
-
YOW
7h 55mdirect
£435Lufthansa
Mon, 15 Jun - Sun, 21 Jun
Air Canada Logo
16:00 - 09:35
YOW
-
LHR
12h 35m
1 stop
Air Canada Logo
09:30 - 13:58
LHR
-
YOW
9h 28m
1 stop
£439Air Canada
Mon, 15 Jun - Thu, 18 Jun
Lufthansa Logo
16:00 - 09:35
YOW
-
LHR
12h 35m
1 stop
Lufthansa Logo
08:30 - 17:15
LHR
-
YOW
13h 45m
1 stop
£441Lufthansa
Tue, 7 Jul - Mon, 13 Jul
WestJet Logo
06:55 - 09:40
YOW
-
GLA
21h 45m
1 stop
WestJet Logo
11:00 - 00:20
GLA
-
YOW
18h 20m
1 stop
£445WestJet
Mon, 7 Sep - Wed, 23 Sep
Air Canada Logo
18:55 - 06:30
YOW
-
LHR
6h 35mdirect
Air Canada Logo
12:40 - 18:40
LHR
-
YOW
11h 00m
1 stop
£448Air Canada
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 72 hours was to London, at £413 return. The most popular route is from Ottawa (YOW) to London Gatwick Airport (LGW), and the cheapest round-trip airline ticket found on this route in the last 5 days was £413.

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 £586 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 £615.

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.

No, with an average price for the route of £583, prices are generally cheapest when you fly direct.

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 £64 (return) on average. On the other hand, the most expensive months are September and August, when the average cost of return tickets is £1,671 and £431 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 Saturdays 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 6 weeks before departure, which saves you about 12% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

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

Low seasonJanuary
Cheapest flight£182
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly (2% more expensive on average)
Flight from Ottawa to Glasgow

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.

Top tips for finding a cheap flight from Ottawa to the United Kingdom

  • Looking for a cheap flight from Ottawa to the United Kingdom? 25% of our users found tickets from Ottawa to the United Kingdom for the following prices or less: London £388 one-way - £562 round-trip

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 554 reviews
8.5Crew
7.3Comfort
6.8Food
7.1Entertainment
7.9Boarding
Airline reviews

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

6.0 GoodJanice, May 2026
YYZ - OPO
Read more Air Transat reviews

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

I didn't have any problems during my flight. My main issue is with airlines in general, they keep offering less and less every year, AirTransat is no different.

Crew was good, helpful. Flight ran on time.would have liked to take airtransat home to MTL. But the price back from San Jose Costa Rica was MUCH more expensive than the flight from MTL to San Jose c.r.

i was not able to take my flight because the information i needed to book my dog correctly was not provided

We are a senior couple (70+) and chose emergency exit seats so we would have 2 seats together and neither of us had to sit in a middle seat. My husband is type 1 diabetic on an insulin pump and I monitor his blood sugar levels. I am 5'9" and 250 lbs and found the seats extremely uncomfortable. Toward the end of the flight I developed diarrhea which lasted a full 24 hours.

I was very nice to arrive earlier than scheduled. Very much appreciated. No issues with flight. All was good.

The on-board crew were professional and friendly and made the trip feel like we were taken care of well. The gate for the flight departure changed three times...not great but not terrible. Considering it was the day of the New Jalisco Cartel mayhem, we can't really complain.

We were treated well by the staff at the airport and on board aircraft. Delay was uncontrollable due to the weather. Had to wait for another gate as we were late landing in Fort Lauderdale.

I was supose to have a carrey on incluided for each passenger and they made me paid 75$ each at the gate.

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.

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.

I cannot think how they could put more seats together but they did. So elbow to elbow leg to leg for these long journeys they should consider leg space at least. Since they did not offer to check people's carry one space was tight and if you did not get on first people used your assigned overhead storage so now your doing these same to another. Cascading inconvenience.

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.

In flight entertainment system did not work across the whole plane for entire flight. Seats were very cramped. Cabin temperature was freezing cold. Crew was miserable and answered everyone in a short and barking manner. I’ve flown air Canada many many times and never had an issue. But this was unpleasant.

They screwed up so bad, I asked for a short check for my luggage since we had a 21 hour overnight layover in London at a hotel. They said I have to receive my luggage in London because it’s an overnight layover. Get to London, nope, my bags aren’t coming off they are staying in terminal 5 over night and going straight to Ibiza. So we had no luggage for a whole day and basically stuck with no clothes or washroom stuff. Finally get to Ibiza and my luggage is completely smashed and damaged and missing a wheel. Now I have to drag this 50 lbs luggage around Ibiza islands for 10 days. Wtf. So pissed off Air Canada is LITERALLY THE WORST AIRLINE IN THE WORLD

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

Information on your arrival and departure airports