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£215 Cheap Flights from Ottawa (YOW) to London (LGW)

View £215 flight on Fri, 3 Jul 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at £215 for one-way flights and £377 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Transat
Fri, 25 Sept - Sun, 4 Oct
YOW
Ottawa
LGW
London
£377 Return, just found
£377
Return
just found
Select Air Transat flight, departing Fri, 25 Sept from Ottawa to London, returning Sun, 4 Oct, priced at £377 just found
Air Transat
Fri, 25 Sept - Sun, 4 Oct
YOW
Ottawa
LGW
London
£379 Return, just found
£379
Return
just found
Select Air Transat flight, departing Fri, 25 Sept from Ottawa to London, returning Sun, 4 Oct, priced at £379 just found
Air Transat
Sun, 27 Sept - Sun, 4 Oct
YOW
Ottawa
LGW
London
£382 Return, found 1 day ago
£382
Return
found 1 day ago
Select Air Transat flight, departing Sun, 27 Sept from Ottawa to London, returning Sun, 4 Oct, priced at £382 found 1 day ago
Air Transat
Fri, 25 Sept - Sun, 4 Oct
YOW
Ottawa
LGW
London
£383 Return, just found
£383
Return
just found
Select Air Transat flight, departing Fri, 25 Sept from Ottawa to London, returning Sun, 4 Oct, priced at £383 just found
Air Transat
Fri, 25 Sept - Sun, 4 Oct
YOW
Ottawa
LGW
London
£385 Return, just found
£385
Return
just found
Select Air Transat flight, departing Fri, 25 Sept from Ottawa to London, returning Sun, 4 Oct, priced at £385 just found
Air Transat
Tue, 16 Jun - Tue, 23 Jun
YOW
Ottawa
LGW
London
£389 Return, found 3 days ago
£389
Return
found 3 days ago
Select Air Transat flight, departing Tue, 16 Jun from Ottawa to London, returning Tue, 23 Jun, priced at £389 found 3 days ago
Swiss International Air Lines
Mon, 5 Oct - Sun, 11 Oct
YOW
Ottawa
LGW
London
£698 Return, found 3 hours ago
£698
Return
found 3 hours ago
Select Swiss International Air Lines flight, departing Mon, 5 Oct from Ottawa to London, returning Sun, 11 Oct, priced at £698 found 3 hours ago
Virgin Atlantic
Fri, 25 Sept - Sun, 4 Oct
YOW
Ottawa
LGW
London
£741 Return, just found
£741
Return
just found
Select Virgin Atlantic flight, departing Fri, 25 Sept from Ottawa to London, returning Sun, 4 Oct, priced at £741 just found
WestJet
Sat, 19 Sept - Fri, 2 Oct
YOW
Ottawa
LGW
London
£745 Return, found 1 day ago
£745
Return
found 1 day ago
Select WestJet flight, departing Sat, 19 Sept from Ottawa to London, returning Fri, 2 Oct, priced at £745 found 1 day ago
TAP Portugal
Wed, 17 Jun - Tue, 23 Jun
YOW
Ottawa
LGW
London
£803 Return, found 21 hours ago
£803
Return
found 21 hours ago
Select TAP Portugal flight, departing Wed, 17 Jun from Ottawa to London, returning Tue, 23 Jun, priced at £803 found 21 hours ago

Alternative airports near London

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

Select flight to Heathrow LHR. Cheapest option available. Average driving time to city centre is 28 minutes. Flights from £698
LHR
Heathrow
Cheapest
Average driving time to city centre28 min
Flights from £698

Frequently asked questions

How much does a flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick) cost?
One-way flights typically cost between $1,228 and $5,541 and return flights often range between $2,398 and $10,315. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
Which airlines fly direct from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick)?
Enter YOW to LGW and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick)?
To find a cheap flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick)?
The best airline to fly with from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick) will differ from traveler to traveler. If you like to fly early, TS offers early morning flights. If price is the most important factor, TS typically offers the lowest fares. AC offers the most daily flights from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick)?
There are approximately 35 connecting flights per day from Ottawa Macdonald-Cartier Intl. (YOW) to London Gatwick (LGW). Some common connection points include Pearson Intl. (YYZ), Pierre Elliott Trudeau Intl. (YUL), and Liberty Intl. (EWR).
What is the earliest flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick)?
The earliest flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick) typically departs at approximately 5:00 AM local time. This service is operated by AC and 2L and is seasonal, active in February, March, and April. An early departure like this can help you maximize your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick)?
You'll typically find the most flights from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick) on a Wednesday, with around 50 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Air Canada, Porter Airlines, and United Airlines. Flight schedules are consistent throughout the week, with only a slight variation in the number of flights.
What are the most popular departure times for flights from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick)?
The most popular departure times for flights from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick) are in the evening, from 6pm to 9pm. About 29% of passengers prefer this time window. Many major carriers, including Air Transat, Porter Airlines and Air Canada, offer flights during this window. These times work well because you can finish your day in Ottawa before your evening flight, and you'll arrive in London ready to start your day.
How long does it take to fly from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick)?
A nonstop flight from YOW to LGW typically takes around 7 hours 20 minutes, covering approximately 3,343 miles. Connecting flights on this route usually add 6 hours 30 minutes to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick)?
Select the "Business class" and "First class" filters when looking for YOW to LGW flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick) flight with Expedia?
It's easy to earn miles on a Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for London from Macdonald-Cartier Intl. (YOW)?
From Macdonald-Cartier Intl. (YOW), you can fly into Heathrow (LHR), London Intl. (YXU) and Gatwick (LGW) in London. Some flights may connect through major hubs like Pearson Intl. (YYZ), Pierre Elliott Trudeau Intl. (YUL), Washington Dulles Intl. (IAD) before reaching London. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick) at the last minute?
Typically, booking a last minute flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick) flight and hotel package?
Securing a Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick)?
If you booked your Ottawa, ON (YOW-Macdonald-Cartier Intl.) to London (LGW-Gatwick) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. 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 France, Air Transat, KLM, Swiss International Air Lines, TAP Portugal, Virgin Atlantic, WestJet
Return price
£376
Distance
5347 km
Average flight time
7 hours 15 mins

Book with confidence

Compare flights from Ottawa to London easily and book with confidence

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

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 Macdonald-Cartier Intl. (YOW) to Gatwick (LGW)

The easiest way to view the best deals on flights from Ottawa to London 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 Macdonald-Cartier Intl. to Gatwick start at just £377 and range up to £803.  

To find an even better deal, try  

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

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

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Macdonald-Cartier Intl. to Gatwick 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.  

Compare flights from Ottawa to London easily and book with confidence

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*Available to Expedia members.