£187 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 18/11. 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 the United Kingdom

Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 27% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

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£429
Manchester
Manchester2 stops£569
Edinburgh
Edinburgh1 stop£474
London
London1 stop£429
Manchester
Manchester2 stops£569
Edinburgh
Edinburgh1 stop£474

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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Ottawa to the United Kingdom

Thu, 2 Oct - Wed, 8 Oct
Air Canada Logo
18:40 - 06:30YOW-LHR
30h 50m1 stop
Air Canada Logo
09:30 - 13:53LHR-YOW
9h 23m1 stop
£429Air Canada
Find Deal
Wed, 1 Oct - Wed, 8 Oct
Air Canada Logo
11:05 - 06:30YOW-LHR
14h 25m1 stop
Air Canada Logo
17:40 - 23:04LHR-YOW
10h 24m1 stop
£429Air Canada
Find Deal
Thu, 2 Oct - Thu, 9 Oct
Air Canada Logo
09:05 - 09:35YOW-LHR
19h 30m1 stop
Air Canada Logo
12:40 - 22:04LHR-YOW
14h 24m2 stops
£431Air Canada
Find Deal
Thu, 12 Feb - Fri, 20 Feb
 Logo
10:30 - 07:10YOW-LHR
15h 40m2 stops
 Logo
09:00 - 19:18LHR-YOW
15h 18m2 stops
Sat, 1 Nov - Sat, 15 Nov
 Logo
12:15 - 20:35YOW-LHR
28h 20m1 stop
 Logo
09:00 - 19:18LHR-YOW
15h 18m2 stops
Sat, 22 Nov - Sat, 29 Nov
SWISS Logo
16:10 - 16:20YOW-LHR
19h 10m2 stops
SWISS Logo
09:00 - 19:18LHR-YOW
15h 18m2 stops
£459SWISS
Find Deal
Mon, 6 Oct - Fri, 17 Oct
Austrian Airlines Logo
19:50 - 11:50YOW-LHR
11h 00m1 stop
Austrian Airlines Logo
06:00 - 17:04LHR-YOW
16h 04m2 stops
£462Austrian Airlines
Find Deal
Thu, 2 Oct - Wed, 8 Oct
Lufthansa Logo
18:55 - 06:30YOW-LHR
6h 35mdirect
Lufthansa Logo
12:40 - 15:00LHR-YOW
7h 20mdirect
£464Lufthansa
Find Deal
Fri, 21 Nov - Thu, 27 Nov
SWISS Logo
18:20 - 18:40YOW-LHR
19h 20m2 stops
SWISS Logo
06:00 - 19:18LHR-YOW
18h 18m2 stops
£465SWISS
Find Deal
Sat, 11 Oct - Sat, 18 Oct
Lufthansa Logo
15:55 - 07:20YOW-EDI
10h 25m1 stop
Lufthansa Logo
09:00 - 17:04EDI-YOW
13h 04m1 stop
£567Lufthansa
Find Deal
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 £551 return. The most popular route is from Ottawa (YOW) to London Heathrow Airport (LHR), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £551.

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 1 stop stopover the cheapest option at £583 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 February, when tickets cost £485 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of return tickets is £666 and £585 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 Monday and more expensive on a Sunday. On your return trip to Ottawa, you should consider flying back on a Monday, 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 7 weeks before departure, which saves you about 17% 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 seasonFebruary
Cheapest flight£187
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly and prices are also 5% lower on average.
Flight from Ottawa to London Heathrow 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.

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

    The cheapest time of day to fly to the United Kingdom is generally in the evening, when retur flights cost £728 on average. Morning departures are around 15% more expensive than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally in the afternoon, which is peak travel time and where the average cost of a ticket is £892.

Reviews of the top airline 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.
7.1
Air CanadaOverall score based on 9992 reviews
6.3Food
7.3Boarding
7.8Crew
7.1Comfort
6.8Entertainment
Airline reviews

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.

2.0 MediocreLinda, Aug 2025YOW - YVR
Read more Air Canada reviews

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.

It got cancelled and they haven't given me a flight back yet!!

Biggest problem for me is that I am Star Alliance Gold and they were not able to give me access to to Maple Lounge because of some computer glitch . It was management by information system. She could clearly see my status and still would not give me access because the computer woudl not let her. She should have override that be attentive to a customer and figure rhat out later

Great breakfast and coffee …..fastest bag service I have ever had in NOLA

Last minute cancellation, followed by last minute delay with the rescheduled flight. Both due to interval operation issues. Poor resolution.Very disappointing.

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

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

Great flights. 90 minute departure delay for maintenance issues, not a great start but, afer that very good. Didn't pay extra for seats and lucked into a window and an aisle seat. Price was excellent at the super low economy level.

Just a little improvement on food but everything is excellent

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.