£439 Cheap Flights from London (LGW) to Ottawa (YOW)

View £439 flight on Fri, 27 Jun 2025Opens in a new window

Popular airlines from Gatwick Airport (LGW) to Ottawa International Airport (YOW)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 25% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from London to Ottawa (LGW-YOW)

Prices were available within the past 7 days and start at £439 for one-way flights and £483 for return, for the period specified. Prices and availability are subject to change. Additional terms apply.
Delta
Wed, 13 Aug - Thu, 28 Aug
LGW
London
YOW
Ottawa
£483
Return
Found 1 day ago
Select Delta flight, departing Wed, 13 Aug from London to Ottawa, returning Thu, 28 Aug, priced at £483 Found 1 day ago
Delta
Mon, 18 Aug - Sun, 31 Aug
LGW
London
YOW
Ottawa
£503
Return
Found 4 days ago
Select Delta flight, departing Mon, 18 Aug from London to Ottawa, returning Sun, 31 Aug, priced at £503 Found 4 days ago
Air Transat
Wed, 18 Feb - Sat, 28 Feb
LGW
London
YOW
Ottawa
£508
Return
Just found
Select Air Transat flight, departing Wed, 18 Feb from London to Ottawa, returning Sat, 28 Feb, priced at £508 Just found
Swiss International Air Lines
Sat, 27 Dec - Tue, 6 Jan
LGW
London
YOW
Ottawa
£512
Return
Found 3 hours ago
Select Swiss International Air Lines flight, departing Sat, 27 Dec from London to Ottawa, returning Tue, 6 Jan, priced at £512 Found 3 hours ago
Delta
Wed, 25 Jun - Sat, 5 Jul
LGW
London
YOW
Ottawa
£515
Return
Found 6 days ago
Select Delta flight, departing Wed, 25 Jun from London to Ottawa, returning Sat, 5 Jul, priced at £515 Found 6 days ago
Swiss International Air Lines
Sat, 27 Dec - Tue, 6 Jan
LGW
London
YOW
Ottawa
£517
Return
Found 3 hours ago
Select Swiss International Air Lines flight, departing Sat, 27 Dec from London to Ottawa, returning Tue, 6 Jan, priced at £517 Found 3 hours ago
Air Transat
Thu, 26 Jun - Sun, 6 Jul
LGW
London
YOW
Ottawa
£518
Return
Found 2 hours ago
Select Air Transat flight, departing Thu, 26 Jun from London to Ottawa, returning Sun, 6 Jul, priced at £518 Found 2 hours ago
Air Transat
Mon, 30 Jun - Sun, 20 Jul
LGW
London
YOW
Ottawa
£520
Return
Just found
Select Air Transat flight, departing Mon, 30 Jun from London to Ottawa, returning Sun, 20 Jul, priced at £520 Just found
KLM
Tue, 12 Aug - Fri, 29 Aug
LGW
London
YOW
Ottawa
£587
Return
Found 2 days ago
Select KLM flight, departing Tue, 12 Aug from London to Ottawa, returning Fri, 29 Aug, priced at £587 Found 2 days ago
Turkish Airlines
Fri, 31 Oct - Sun, 9 Nov
LGW
London
YOW
Ottawa
£1,093
Return
Found 1 day ago
Select Turkish Airlines flight, departing Fri, 31 Oct from London to Ottawa, returning Sun, 9 Nov, priced at £1,093 Found 1 day ago
Flight from London to Ottawa route information
Origin airport
Gatwick
Destination airport
Macdonald-Cartier Intl.
Airlines serving
Air Transat, Swiss International Air Lines, TAP Portugal, Turkish Airlines
Return price
£482
Distance
5347 km

Compare flights from London to Ottawa easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from London to Ottawa. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Macdonald-Cartier Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Gatwick to Macdonald-Cartier Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Gatwick (LGW) to Macdonald-Cartier Intl. (YOW)

The easiest way to view the best deals on flights from London to Ottawa today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Gatwick to Macdonald-Cartier Intl. start at just £483 and range up to £1,093.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near London and Ottawa
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your London to Ottawa flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Gatwick to Macdonald-Cartier Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from Gatwick Airport (LGW) to YOW?
If you’re planning on travelling between Gatwick Airport (LGW) and Ottawa Intl. Airport, round-trip flights start from £483. This figure is based on airfares advertised within the last 7 days on Expedia for flights departing within the next year, so don’t let a good deal slip through your fingers. Book today and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from LGW to Ottawa International Airport?
We understand that your situation can change unexpectedly, so we’ve made it as simple as possible for you to cancel your trip online. Just head to the Customer Service Portal and follow the instructions.
How do I find cheap flights from LGW to YOW that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for London Gatwick to Ottawa International Airport flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Gatwick Airport (LGW) to Macdonald-Cartier Intl. Airport (YOW)?
The distance is around 5,400 kilometres, so pack your carry-on luggage with whatever you need to make your journey comfortable. Not sure what to take on board your Gatwick to Ottawa flight? A sleep mask, earplugs and a neck pillow are a few essentials.
Which airlines fly direct from London Gatwick to Ottawa Intl. Airport?
If you want to travel straight from LGW to Ottawa International Airport, you’ll need to book a flight with one or more stops. Unfortunately, there aren’t any airlines that fly directly between these airports.
Are Gatwick Airport (LGW) to YOW flight tickets cheaper when they're purchased at the last minute?
Flight prices change all the time, so there are no guarantees. While last-minute deals between London Gatwick and Ottawa Intl. Airport are possible, it also makes sense to keep track of prices well before you fly. In fact, some carriers advertise their prices up to a year before the departure date. Expedia is constantly updating the biggest bargains around, so keep checking and be ready to lock in your seat when prices drop.

Explore a world of travel with Expedia

London Airports

London

*Available to Expedia members.