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Cheap flights from Ottawa to London from £197

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ottawa to London departing on 30/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Air Transat Logo
10:00 - 09:45YOW-LGW
18h 45m1 stop
Air Transat Logo
11:40 - 08:25LGW-YOW
25h 45m1 stop
£487Air Transat
Find Deal
Fri, 28 Nov - Sun, 30 Nov
Air Transat Logo
15:05 - 09:45YOW-LGW
13h 40m1 stop
Air Transat Logo
11:40 - 08:24LGW-YOW
25h 44m1 stop
£489Air Transat
Find Deal
Wed, 12 Nov - Sat, 15 Nov
Air Transat Logo
06:45 - 09:45YOW-LGW
22h 00m1 stop
Air Transat Logo
11:40 - 08:25LGW-YOW
25h 45m1 stop
£492Air Transat
Find Deal
Sun, 23 Nov - Sun, 30 Nov
Air Transat Logo
18:55 - 09:45YOW-LGW
9h 50m1 stop
Air Transat Logo
11:40 - 08:25LGW-YOW
25h 45m1 stop
£497Air Transat
Find Deal
Mon, 17 Nov - Sun, 30 Nov
Air Transat Logo
06:45 - 09:45YOW-LGW
22h 00m1 stop
Air Transat Logo
11:40 - 00:41LGW-YOW
18h 01m1 stop
£499Air Transat
Find Deal
Fri, 5 Dec - Mon, 8 Dec
Air Transat Logo
15:05 - 09:45YOW-LGW
13h 40m1 stop
Air Transat Logo
11:40 - 18:24LGW-YOW
11h 44m1 stop
£502Air Transat
Find Deal
Wed, 12 Nov - Sun, 16 Nov
Multiple Airlines Logo
15:55 - 06:00YOW-LGW
33h 05m1 stop
Multiple Airlines Logo
16:25 - 00:40LGW-YOW
37h 15m2 stops
£503Multiple Airlines
Find Deal
Sun, 23 Nov - Tue, 2 Dec
Porter Airlines Logo
18:55 - 09:45YOW-LGW
9h 50m1 stop
Porter Airlines Logo
11:40 - 18:24LGW-YOW
11h 44m1 stop
£556Porter Airlines
Find Deal
Sun, 23 Nov - Sun, 30 Nov
Porter Airlines Logo
15:00 - 09:45YOW-LGW
13h 45m1 stop
Porter Airlines Logo
11:40 - 00:41LGW-YOW
18h 01m1 stop
£615Porter Airlines
Find Deal
Wed, 10 Dec - Tue, 16 Dec
Porter Airlines Logo
18:45 - 09:45YOW-LGW
10h 00m1 stop
Porter Airlines Logo
11:40 - 18:26LGW-YOW
11h 46m1 stop
£631Porter Airlines
Find Deal
Wed, 24 Dec - Fri, 9 Jan

Porter Airlines flights from Ottawa to London Gatwick Airport

Our best Porter Airlines deals on Ottawa to London Gatwick Airport flight tickets
Porter Airlines
23 Nov
YOW18:55Ottawa
9h 50m
1 stop
LGW09:45London Gatwick
30 Nov
LGW11:40London Gatwick
11h 44m
1 stop
YOW18:24Ottawa
£556
Find similar
Porter Airlines
10 Dec
YOW15:00Ottawa
13h 45m
1 stop
LGW09:45London Gatwick
16 Dec
LGW11:40London Gatwick
18h 01m
1 stop
YOW00:41Ottawa
£615
Find similar
Porter Airlines
24 Dec
YOW18:45Ottawa
10h 00m
1 stop
LGW09:45London Gatwick
9 Jan
LGW11:40London Gatwick
11h 46m
1 stop
YOW18:26Ottawa
£631
Find similar

Air Transat flights from Ottawa to London Gatwick Airport

Our best Air Transat deals on Ottawa to London Gatwick Airport flight tickets
Air Transat
28 Nov
YOW10:00Ottawa
18h 45m
1 stop
LGW09:45London Gatwick
30 Nov
LGW11:40London Gatwick
25h 45m
1 stop
YOW08:25Ottawa
£487
Find similar
Air Transat
12 Nov
YOW15:05Ottawa
13h 40m
1 stop
LGW09:45London Gatwick
15 Nov
LGW11:40London Gatwick
25h 44m
1 stop
YOW08:24Ottawa
£489
Find similar
Air Transat
23 Nov
YOW06:45Ottawa
22h 00m
1 stop
LGW09:45London Gatwick
30 Nov
LGW11:40London Gatwick
25h 45m
1 stop
YOW08:25Ottawa
£492
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Ottawa to London Gatwick Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 31 October 2025.
Use the filters below to find and compare flights from Ottawa to London Gatwick Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Fri 28/11

10:00-09:45

1 stop18h 45m

London Gatwick

Sun 30/11

11:40-08:25

1 stop25h 45m

£487

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Wed 12/11

15:05-09:45

1 stop13h 40m

London Gatwick

Sat 15/11

11:40-08:24

1 stop25h 44m

£489

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Sun 23/11

06:45-09:45

1 stop22h 00m

London Gatwick

Sun 30/11

11:40-08:25

1 stop25h 45m

£492

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Mon 17/11

18:55-09:45

1 stop9h 50m

London Gatwick

Sun 30/11

11:40-08:25

1 stop25h 45m

£497

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Fri 5/12

06:45-09:45

1 stop22h 00m

London Gatwick

Mon 8/12

11:40-00:41

1 stop18h 01m

£499

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Wed 12/11

15:05-09:45

1 stop13h 40m

London Gatwick

Sun 16/11

11:40-18:24

1 stop11h 44m

£502

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Sun 23/11

15:55-06:00

1 stop33h 05m

London Gatwick

Tue 2/12

16:25-00:40

2 stops37h 15m

£503

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Sun 23/11

18:55-09:45

1 stop9h 50m

London Gatwick

Sun 30/11

11:40-18:24

1 stop11h 44m

£556

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Wed 10/12

15:00-09:45

1 stop13h 45m

London Gatwick

Tue 16/12

11:40-00:41

1 stop18h 01m

£615

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Wed 24/12

18:45-09:45

1 stop10h 00m

London Gatwick

Fri 9/1

11:40-18:26

1 stop11h 46m

£631

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Ottawa to London Gatwick Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to London Gatwick Airport?

The cheapest month to fly to London Gatwick Airport from Ottawa is in June. Flight prices, which tend to average around £502, are often lower during this time because this is during the off-season. If you don’t want to visit London Gatwick Airport in June, then you should wait until March to fly from Ottawa, when ticket prices are also cheap, with an average price of £542.

What is the cheapest day to depart on your flight to London Gatwick Airport?

According to our data, Tuesday is the cheapest day to fly to London Gatwick Airport from Ottawa. The lowest ticket price found for a Tuesday departure recently was £552. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Ottawa to London Gatwick Airport on a Friday will generally be more expensive and average around £584. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to London Gatwick Airport?

Our data shows that the cheapest Ottawa to London Gatwick Airport flights are usually those with departure times in the evening. Our users have found flights to London Gatwick Airport in the evening for as low as £549. In contrast, the most expensive time of day to depart to London Gatwick Airport is at midday when prices are around £1,187.

Can stopping save me money on Ottawa to London Gatwick Airport flights?

You could potentially save up to 66% on your flight if you consider stops on a Ottawa to London Gatwick Airport flight.

When to book flights from Ottawa to London Gatwick Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Ottawa to London Gatwick Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Ottawa to London Gatwick Airport (YOW to LGW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to London Gatwick Airport

Direct flights

None
There are no direct flights from Ottawa to London Gatwick Airport. There are no popular flight routes from Ottawa to London Gatwick Airport.
Search flight deals

  • How far is Ottawa to London Gatwick by plane?

    There are 3337.1 mi between Ottawa and London Gatwick. Flights usually cover this in 9h 50m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Ottawa Airport to London Gatwick Airport?

    Prices for flights from Ottawa Airport to London Gatwick Airport are updated daily.

  • How old do you have to be to fly from Ottawa Airport to London Gatwick Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ottawa Airport to London Gatwick Airport.

  • What documentation or ID do you need to fly to London Gatwick Airport?

    The travel and health documents you'll need for your trip to London Gatwick Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Gatwick Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Canterbury
Southend-on-Sea
Ipswich
Ilford
Guildford
Colchester
Dover
Hayes
Chelmsford
Worthing
Dartford
Ramsgate
Bedford
Stansted

Why use momondo?

Why should I use momondo to find a flight deal from Ottawa to London?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ottawa to London for you.

Can I find flights from Ottawa to London with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to London from Ottawa with this policy.

How can momondo help me find flights from Ottawa to London?

momondo helps you find the best flight between Ottawa and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ottawa to London right now. Can momondo alert me if prices change?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Ottawa and alert you when they change.

An easier way to manage your London Gatwick Airport trip

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