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414 € Cheap Flights from London Gatwick to Ottawa International

Compare London Gatwick to Ottawa International flight deals

Find the cheapest month or even day of the year to fly to Ottawa International

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Flight deals from London Gatwick to Ottawa International

Looking for a cheap last-minute deal or the best return flight from London Gatwick Airport to Ottawa International Airport? If you want to travel next month, return fares start from 416 €. Find the lowest prices on one-way and return tickets right here.
Ottawa.414 € per passenger.Departing Tue, 8 Sep, returning Tue, 20 Oct.Return flight with Air Transat.Outbound indirect flight with Air Transat, departs from London Gatwick on Tue, 8 Sep, arriving in Ottawa International.Inbound indirect flight with Air Transat, departs from Ottawa International on Tue, 20 Oct, arriving in London Gatwick.Price includes taxes and charges.From 414 €, select.
Ottawa.416 € per passenger.Departing Tue, 9 Jun, returning Wed, 10 Jun.Return flight with Air Transat.Outbound indirect flight with Air Transat, departs from London Gatwick on Tue, 9 Jun, arriving in Ottawa International.Inbound indirect flight with Air Transat, departs from Ottawa International on Wed, 10 Jun, arriving in London Gatwick.Price includes taxes and charges.From 416 €, select.
Ottawa.422 € per passenger.Departing Fri, 29 May, returning Fri, 5 Jun.Return flight with Air Transat.Outbound direct flight with Air Transat departs from London Gatwick on Fri, 29 May, arriving in Ottawa International.Inbound direct flight with Air Transat departs from Ottawa International on Fri, 5 Jun, arriving in London Gatwick.Price includes taxes and charges.From 422 €, select.
Ottawa.422 € per passenger.Departing Tue, 8 Sep, returning Tue, 15 Sep.Return flight with Air Transat.Outbound direct flight with Air Transat departs from London Gatwick on Tue, 8 Sep, arriving in Ottawa International.Inbound direct flight with Air Transat departs from Ottawa International on Tue, 15 Sep, arriving in London Gatwick.Price includes taxes and charges.From 422 €, select.
Ottawa.422 € per passenger.Departing Tue, 2 Jun, returning Tue, 9 Jun.Return flight with Air Transat.Outbound direct flight with Air Transat departs from London Gatwick on Tue, 2 Jun, arriving in Ottawa International.Inbound direct flight with Air Transat departs from Ottawa International on Tue, 9 Jun, arriving in London Gatwick.Price includes taxes and charges.From 422 €, select.
Ottawa.422 € per passenger.Departing Fri, 19 Jun, returning Sun, 5 Jul.Return flight with Air Transat.Outbound direct flight with Air Transat departs from London Gatwick on Fri, 19 Jun, arriving in Ottawa International.Inbound direct flight with Air Transat departs from Ottawa International on Sun, 5 Jul, arriving in London Gatwick.Price includes taxes and charges.From 422 €, select.
Ottawa.422 € per passenger.Departing Sun, 4 Oct, returning Sun, 11 Oct.Return flight with Air Transat.Outbound direct flight with Air Transat departs from London Gatwick on Sun, 4 Oct, arriving in Ottawa International.Inbound direct flight with Air Transat departs from Ottawa International on Sun, 11 Oct, arriving in London Gatwick.Price includes taxes and charges.From 422 €, select.
Ottawa.424 € per passenger.Departing Fri, 29 May, returning Sun, 31 May.Return flight with Air Transat.Outbound direct flight with Air Transat departs from London Gatwick on Fri, 29 May, arriving in Ottawa International.Inbound direct flight with Air Transat departs from Ottawa International on Sun, 31 May, arriving in London Gatwick.Price includes taxes and charges.From 424 €, select.
Ottawa.425 € per passenger.Departing Fri, 25 Sep, returning Fri, 2 Oct.Return flight with Air Transat.Outbound direct flight with Air Transat departs from London Gatwick on Fri, 25 Sep, arriving in Ottawa International.Inbound direct flight with Air Transat departs from Ottawa International on Fri, 2 Oct, arriving in London Gatwick.Price includes taxes and charges.From 425 €, select.
Ottawa.431 € per passenger.Departing Wed, 17 Jun, returning Sun, 27 Sep.Return flight with Air Transat.Outbound indirect flight with Air Transat, departs from London Gatwick on Wed, 17 Jun, arriving in Ottawa International.Inbound indirect flight with Air Transat, departs from Ottawa International on Sun, 27 Sep, arriving in London Gatwick.Price includes taxes and charges.From 431 €, select.
Ottawa.472 € per passenger.Departing Sun, 24 May, returning Fri, 25 Sep.Return flight with Air Transat.Outbound direct flight with Air Transat departs from London Gatwick on Sun, 24 May, arriving in Ottawa International.Inbound direct flight with Air Transat departs from Ottawa International on Fri, 25 Sep, arriving in London Gatwick.Price includes taxes and charges.From 472 €, select.
Ottawa.525 € per passenger.Departing Fri, 3 Jul, returning Tue, 7 Jul.Return flight with Air Transat.Outbound direct flight with Air Transat departs from London Gatwick on Fri, 3 Jul, arriving in Ottawa International.Inbound direct flight with Air Transat departs from Ottawa International on Tue, 7 Jul, arriving in London Gatwick.Price includes taxes and charges.From 525 €, select.
Ottawa.528 € per passenger.Departing Sun, 30 Aug, returning Sun, 13 Sep.Return flight with Air Transat.Outbound direct flight with Air Transat departs from London Gatwick on Sun, 30 Aug, arriving in Ottawa International.Inbound direct flight with Air Transat departs from Ottawa International on Sun, 13 Sep, arriving in London Gatwick.Price includes taxes and charges.From 528 €, select.
Ottawa.530 € per passenger.Departing Fri, 10 Jul, returning Fri, 25 Sep.Return flight with Air Transat.Outbound direct flight with Air Transat departs from London Gatwick on Fri, 10 Jul, arriving in Ottawa International.Inbound direct flight with Air Transat departs from Ottawa International on Fri, 25 Sep, arriving in London Gatwick.Price includes taxes and charges.From 530 €, select.
Ottawa.534 € per passenger.Departing Mon, 31 Aug, returning Tue, 6 Oct.Return flight with Air France.Outbound indirect flight with Air France, departs from London Gatwick on Mon, 31 Aug, arriving in Ottawa International.Inbound indirect flight with Air France, departs from Ottawa International on Tue, 6 Oct, arriving in London Gatwick.Price includes taxes and charges.From 534 €, select.
Ottawa.551 € per passenger.Departing Sun, 28 Jun, returning Sun, 30 Aug.Return flight with Air Transat.Outbound direct flight with Air Transat departs from London Gatwick on Sun, 28 Jun, arriving in Ottawa International.Inbound direct flight with Air Transat departs from Ottawa International on Sun, 30 Aug, arriving in London Gatwick.Price includes taxes and charges.From 551 €, select.

Find the cheapest month to fly from London Gatwick to Ottawa International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London Gatwick to Ottawa International flights are currently cheapest in June.
May
from 424 €
Jun
from 416 €
Jul
from 525 €
Aug
from 632 €
Sep
from 422 €
Oct
from 422 €
Nov
from 657 €
Dec
from 659 €
Jan
from 657 €
Feb
from 659 €
Mar
from 659 €
Apr
from 672 €

Direct flights from London Gatwick to Ottawa International

London Gatwick to Ottawa International: Alternative routes

Compare routes from London Gatwick to Ottawa below. You may find an airport to fly into that's cheaper, faster, or easier than Ottawa International.

Ottawa International

11km from central Ottawa
ClosestCheapest
from 414 €
Search flights

Ottawa Gatineau

15km from central Ottawa
Search flights

London to Ottawa: Flight information

The things to know before you go.
Cheapest flight found414 €
Cheapest month to flySeptember
Average flight time8 hrs
Most popular airlinePorter Airlines
Average flights per week6

Finding cheap flights from London Gatwick to Ottawa International: Frequently asked questions

The best price we found for a return flight from London Gatwick to Ottawa International is 414 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
8 hours is the average flight time from London Gatwick to Ottawa International.
Porter Airlines and Air Transat fly direct from London Gatwick to Ottawa International.
As of May 2026, there are 6 flights per week flying from London Gatwick to Ottawa International.
The cheapest month to fly from London Gatwick to Ottawa International is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Gatwick Airport to Ottawa International Airport on Tuesday, 8 September 2026.
Yes – the average flight time is 8 hours.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ottawa International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Ottawa is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Air Transat offers the cheapest flight tickets to Ottawa International.

Flying from London Gatwick Airport (LGW) to Ottawa/Macdonald-Cartier International Airport (YOW): what you need to know

  • Ottawa is four hours behind London and follows the UTC-4 timezone.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules to live by. Make sure you're at the airport on time to board your LGW to YOW flight.

  • During popular months like August, it's best to get to the airport earlier than normal. Plan to arrive two hours before domestic departures and four hours ahead of an international flight when you fly during peak periods in general.

  • We make it a piece of cake to book a flight with a stopover. To see your options for tickets from London Gatwick Airport to Ottawa/Macdonald-Cartier International Airport, uncheck 'Direct flights only.' Then, choose a flight offering a stop long enough to tour the city of your choice. Worthwhile stopovers between LGW and YOW include:

    • Quebec City Jean Lesage International Airport

    • Montreal-Pierre Elliott Trudeau International Airport

    • Pearson International Airport

How to find the cheapest flights from London Gatwick Airport (LGW) to Ottawa/Macdonald-Cartier International Airport (YOW)

  • Currently, 225 € is the cheapest price we've seen for a one-way London Gatwick Airport to Ottawa/Macdonald-Cartier International Airport flight. The best price for a return plane ticket is 414 €. Bear in mind that fares can change due to availability when booking.

  • Don't wait until the last moment. You're more likely to find cheap tickets from LGW to YOW if you book in advance. Airlines often have some fantastic early bird discounts.

  • The 'Whole month' tool shows you the cheapest flights from London Gatwick Airport to Ottawa/Macdonald-Cartier International Airport throughout the entire month. It's a good way to snap up a bargain if your plans are flexible.

  • Landing cheap flights from LGW to YOW couldn't be easier with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch as soon as fares go down.

  • Select your ideal departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to get the best deals on flights from London Gatwick Airport to Ottawa/Macdonald-Cartier International Airport.

Handy information about London Gatwick Airport (LGW)

  • When it comes to the on-time performance of London Gatwick Airport, data shows 69.26% of flights arrive within the expected timeframe.

  • Central London to London Gatwick Airport is approximately 80 kilometres. Depending on traffic, it'll take about 1 hour 20 minutes to get there if you're driving, catching a cab or ride-sharing.

  • Taking public transport? You can expect a journey time of around 1 hour 25 minutes.

  • Get your journey off to a stress-free start by staying near LGW. Whether you have an early flight from London Gatwick Airport to Ottawa/Macdonald-Cartier International Airport or just don't like being rushed, these hotels are the answer:

Arriving at Ottawa/Macdonald-Cartier International Airport (YOW)

Getting from Ottawa/Macdonald-Cartier International Airport (YOW) to central Ottawa

  • The address for YOW is 50 Airport Road.

  • Ottawa/Macdonald-Cartier International Airport to the centre of Ottawa has a drive time of around 20 minutes. It's approximately 13 kilometres away.

  • If you're travelling on public transport, expect a journey time of around 45 minutes.

When to fly to Ottawa/Macdonald-Cartier International Airport (YOW)

  • July is the most popular month for flights from London Gatwick Airport to Ottawa/Macdonald-Cartier International Airport. To escape the crowds, visit Ottawa in February.

  • Book your flight from London Gatwick Airport to Ottawa/Macdonald-Cartier International Airport for July if you want to explore Ottawa during its warmest month. Expect temperatures of between 13ºC (55ºF) and 27ºC (81ºF).

  • January has average temperatures of between -19ºC (-2ºF) and -2ºC (28ºF). Search for cheap tickets from LGW to YOW sometime then if you want to travel when it's cooler.

Explore more of Canada

  • Toronto is just one of the many cities in Canada waiting to be explored once you've seen the sights of Ottawa. Around 354 kilometres away to the south-west, its best attractions include CN Tower, Royal Ontario Museum and Go Tours Canada - Distillery District.

  • Around 153 kilometres east of Ottawa, Montreal is another favourite stop in Canada. Experience major highlights starting with Mount Royal Park, Montreal Botanical Garden and Saint Joseph's Oratory of Mount Royal.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.