$311 Cheap Flights from Ottawa (YOW) to London (LGW)

View $311 flight on Thu, May 7, 2026Opens in a new window

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

Cheap Flights from Ottawa to London (YOW-LGW)

Prices were available within the past 7 days and start at $311 for one-way flights and $612 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Transat
Mon, Dec 1 - Thu, Dec 4
YOW
Ottawa
LGW
London
$612 Roundtrip, found 7 hours ago
$612
Roundtrip
found 7 hours ago
Select Air Transat flight, departing Mon, Dec 1 from Ottawa to London, returning Thu, Dec 4, priced at $612 found 7 hours ago
Porter Airlines
Mon, Nov 17 - Wed, Nov 26
YOW
Ottawa
LGW
London
$615 Roundtrip, found 8 hours ago
$615
Roundtrip
found 8 hours ago
Select Porter Airlines flight, departing Mon, Nov 17 from Ottawa to London, returning Wed, Nov 26, priced at $615 found 8 hours ago
Porter Airlines
Tue, Nov 11 - Tue, Dec 2
YOW
Ottawa
LGW
London
$615 Roundtrip, found 4 days ago
$615
Roundtrip
found 4 days ago
Select Porter Airlines flight, departing Tue, Nov 11 from Ottawa to London, returning Tue, Dec 2, priced at $615 found 4 days ago
Porter Airlines
Wed, Jan 28 - Mon, Feb 9
YOW
Ottawa
LGW
London
$616 Roundtrip, found 1 day ago
$616
Roundtrip
found 1 day ago
Select Porter Airlines flight, departing Wed, Jan 28 from Ottawa to London, returning Mon, Feb 9, priced at $616 found 1 day ago
Porter Airlines
Mon, Nov 17 - Mon, Nov 24
YOW
Ottawa
LGW
London
$629 Roundtrip, found 8 hours ago
$629
Roundtrip
found 8 hours ago
Select Porter Airlines flight, departing Mon, Nov 17 from Ottawa to London, returning Mon, Nov 24, priced at $629 found 8 hours ago
Porter Airlines
Wed, Nov 12 - Wed, Nov 26
YOW
Ottawa
LGW
London
$629 Roundtrip, found 4 days ago
$629
Roundtrip
found 4 days ago
Select Porter Airlines flight, departing Wed, Nov 12 from Ottawa to London, returning Wed, Nov 26, priced at $629 found 4 days ago
Porter Airlines
Tue, Jan 27 - Mon, Feb 9
YOW
Ottawa
LGW
London
$630 Roundtrip, found 1 day ago
$630
Roundtrip
found 1 day ago
Select Porter Airlines flight, departing Tue, Jan 27 from Ottawa to London, returning Mon, Feb 9, priced at $630 found 1 day ago
WestJet
Fri, May 8 - Wed, May 13
YOW
Ottawa
LGW
London
$739 Roundtrip, found 3 days ago
$739
Roundtrip
found 3 days ago
Select WestJet flight, departing Fri, May 8 from Ottawa to London, returning Wed, May 13, priced at $739 found 3 days ago
TAP Portugal
Fri, Jan 9 - Mon, Jan 12
YOW
Ottawa
LGW
London
$940 Roundtrip, found 1 day ago
$940
Roundtrip
found 1 day ago
Select TAP Portugal flight, departing Fri, Jan 9 from Ottawa to London, returning Mon, Jan 12, priced at $940 found 1 day ago
Swiss International Air Lines
Wed, Jan 28 - Sat, Feb 21
YOW
Ottawa
LGW
London
$957 Roundtrip, found 1 day ago
$957
Roundtrip
found 1 day ago
Select Swiss International Air Lines flight, departing Wed, Jan 28 from Ottawa to London, returning Sat, Feb 21, priced at $957 found 1 day ago

Find the cheapest month to fly from Ottawa (YOW) to London (LGW)

May is typically the cheapest month to fly

From $556 - $972 per traveler.

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Heathrow LHR. Average driving time to city center is 28 minutes. Flights from $714
LHR
Heathrow
Average driving time to city center28 min
Flights from $714

Frequently asked questions

How much does a flight from Macdonald-Cartier Intl. Airport (YOW) to Gatwick Airport (LGW) cost?
Snag a cheap one-way flight from $311 or cheap return flight from $612 from Macdonald-Cartier Intl. Airport (YOW) to Gatwick Airport (LGW) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Macdonald-Cartier Intl. Airport (YOW) to Gatwick Airport (LGW)?
Planning your getaway for December is a great way to save, as it's the cheapest month for flights between YOW and LGW. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from Macdonald-Cartier Intl. Airport (YOW) to Gatwick Airport (LGW)?
To find the cheapest airline that'll fly you from YOW to LGW, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Macdonald-Cartier Intl. Airport (YOW) to Gatwick Airport (LGW)?
You'll have to book a flight with a layover when traveling from Macdonald-Cartier Intl. Airport (YOW) to Gatwick Airport (LGW). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from YOW to LGW?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Macdonald-Cartier Intl. Airport (YOW) to Gatwick Airport (LGW)?
Book a flight from Macdonald-Cartier Intl. Airport (YOW) to Gatwick Airport (LGW) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Macdonald-Cartier Intl. Airport (YOW) to Gatwick Airport (LGW) last-minute?
Waiting until just before your trip to book your flight from YOW to LGW often results in higher prices. While you might find some last-minute deals, there's no guarantee. Be flexible with your itinerary for a better chance of landing a bargain.
Is it cheaper to book a YOW to LGW flight and hotel package?
Compared with arranging hotels and flights separately, booking a YOW to LGW flight and hotel package with Expedia could lead to significant savings. Better still, managing everything in one place will take the stress out of planning your trip. Simply pick your flights and select from our extensive range of stays, then tailor your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Macdonald-Cartier Intl. Airport (YOW) to Gatwick Airport (LGW)?
If you reserved your YOW to LGW flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Macdonald-Cartier Intl.
Destination airport
Gatwick
Airlines serving
Air Transat, Porter Airlines, Swiss International Air Lines, TAP Portugal, WestJet
Roundtrip price
$612
Distance
3342 mi

Book with confidence

Ottawa to London Flights

The cheapest times to fly from Ottawa to London

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Ottawa to London are during the month of December. You can find some of the cheapest flights from Ottawa to London with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ottawa to London

Sunday is one of the best days to book for cheap flights from Ottawa to London: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Ottawa to London

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Ottawa to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $311 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Ottawa to London flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Ottawa to London airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Ottawa to London Flights

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*Available to One Key members.