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Cheap flights from Ottawa to London from £203

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 31/5. 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
18:55 - 10:45
YOW
-
LGW
10h 50m
1 stop
Air Transat Logo
12:40 - 08:25
LGW
-
YOW
24h 45m
1 stop
£473Air Transat
Sat, 4 Apr - Wed, 15 Apr
Air Transat Logo
18:35 - 10:45
YOW
-
LGW
11h 10m
1 stop
Air Transat Logo
09:40 - 20:00
LGW
-
YOW
15h 20m
1 stop
£474Air Transat
Thu, 14 May - Mon, 25 May
Porter Airlines Logo
07:00 - 07:55
YOW
-
LGW
19h 55m
1 stop
Porter Airlines Logo
09:40 - 12:40
LGW
-
YOW
8h 00mdirect
£475Porter Airlines
Mon, 1 Jun - Tue, 23 Jun
Air Transat Logo
18:35 - 10:45
YOW
-
LGW
11h 10m
1 stop
Air Transat Logo
12:40 - 20:00
LGW
-
YOW
12h 20m
1 stop
£475Air Transat
Mon, 11 May - Fri, 15 May
Air Transat Logo
19:40 - 07:55
YOW
-
LGW
7h 15mdirect
Air Transat Logo
11:35 - 17:35
LGW
-
YOW
11h 00m
1 stop
£476Air Transat
Sun, 31 May - Tue, 23 Jun
Air Transat Logo
18:35 - 10:45
YOW
-
LGW
11h 10m
1 stop
Air Transat Logo
12:40 - 00:25
LGW
-
YOW
16h 45m
1 stop
£477Air Transat
Wed, 6 May - Fri, 15 May
Air Transat Logo
18:35 - 10:45
YOW
-
LGW
11h 10m
1 stop
Air Transat Logo
12:40 - 08:05
LGW
-
YOW
24h 25m
1 stop
£478Air Transat
Wed, 6 May - Sat, 16 May
Air Transat Logo
16:00 - 10:45
YOW
-
LGW
13h 45m
1 stop
Air Transat Logo
12:40 - 20:00
LGW
-
YOW
12h 20m
1 stop
£478Air Transat
Mon, 4 May - Thu, 7 May
Porter Airlines Logo
19:15 - 10:45
YOW
-
LGW
10h 30m
1 stop
Porter Airlines Logo
12:40 - 20:00
LGW
-
YOW
12h 20m
1 stop
£479Porter Airlines
Sat, 2 May - Tue, 2 Jun
Porter Airlines Logo
16:00 - 10:45
YOW
-
LGW
13h 45m
1 stop
Porter Airlines Logo
12:40 - 00:25
LGW
-
YOW
16h 45m
1 stop
£480Porter Airlines
Sun, 24 May - Tue, 16 Jun

Air Transat flights from Ottawa to London Gatwick Airport

Our best Air Transat deals on Ottawa to London Gatwick Airport flight tickets
Air Transat
14 May
YOW18:35Ottawa
11h 10m
1 stop
LGW10:45London Gatwick
25 May
LGW09:40London Gatwick
15h 20m
1 stop
YOW20:00Ottawa
£474
Air Transat
11 May
YOW18:35Ottawa
11h 10m
1 stop
LGW10:45London Gatwick
15 May
LGW12:40London Gatwick
12h 20m
1 stop
YOW20:00Ottawa
£475
Air Transat
31 May
YOW19:40Ottawa
7h 15m
LGW07:55London Gatwick
23 Jun
LGW11:35London Gatwick
11h 00m
1 stop
YOW17:35Ottawa
£476

TAP AIR PORTUGAL flights from Ottawa to London Gatwick Airport

Our best TAP AIR PORTUGAL deals on Ottawa to London Gatwick Airport flight tickets
TAP AIR PORTUGAL
19 Mar
YOW14:05Ottawa
15h 45m
2 stops
LGW09:50London Gatwick
23 Mar
LGW10:40London Gatwick
27h 01m
2 stops
YOW09:41Ottawa
£1,094
TAP AIR PORTUGAL
27 Mar
YOW19:55Ottawa
15h 50m
2 stops
LGW15:45London Gatwick
30 Mar
LGW10:35London Gatwick
28h 31m
2 stops
YOW10:06Ottawa
£1,206

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 15 March 2026.
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

Cheapest return flight

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Sat 4/4

18:55-10:45

1 stop10h 50m

London Gatwick

Wed 15/4

12:40-08:25

1 stop24h 45m

£473

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Thu 14/5

18:35-10:45

1 stop11h 10m

London Gatwick

Mon 25/5

09:40-20:00

1 stop15h 20m

£474

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Mon 1/6

07:00-07:55

1 stop19h 55m

London Gatwick

Tue 23/6

09:40-12:40

Nonstop8h 00m

£475

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Mon 11/5

18:35-10:45

1 stop11h 10m

London Gatwick

Fri 15/5

12:40-20:00

1 stop12h 20m

£475
Fastest return journey

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Sun 31/5

19:40-07:55

Nonstop7h 15m

London Gatwick

Tue 23/6

11:35-17:35

1 stop11h 00m

£476

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Wed 6/5

18:35-10:45

1 stop11h 10m

London Gatwick

Fri 15/5

12:40-00:25

1 stop16h 45m

£477

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Wed 6/5

18:35-10:45

1 stop11h 10m

London Gatwick

Sat 16/5

12:40-08:05

1 stop24h 25m

£478

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Mon 4/5

16:00-10:45

1 stop13h 45m

London Gatwick

Thu 7/5

12:40-20:00

1 stop12h 20m

£478

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Sat 2/5

19:15-10:45

1 stop10h 30m

London Gatwick

Tue 2/6

12:40-20:00

1 stop12h 20m

£479

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Sun 24/5

16:00-10:45

1 stop13h 45m

London Gatwick

Tue 16/6

12:40-00:25

1 stop16h 45m

£480

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 Ottawa to London Gatwick flight route?

Fly from Ottawa to London Gatwick for the best Ottawa - London Gatwick flight prices

What cabin class options are available on Ottawa to London Gatwick flights?

There is only 1 cabin class available to choose from on Ottawa to London Gatwick flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

You could potentially save up to 14% 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

Fastest flight time

7h 15m

Direct flights

Mon, Wed and Sat
The fastest flight from Ottawa to London Gatwick Airport takes 7h 15m
Direct flights go from Ottawa to London Gatwick Airport on Monday, Wednesday and Saturday. There are no airlines offering direct flights..
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 7h 15m, 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.

  • What is the most popular plane model from Ottawa to London Gatwick Airport?

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
Southend-on-Sea
Ipswich
Canterbury
Ilford
Wembley
Guildford
Chelmsford
Hayes
Dover
Folkestone
Ramsgate
Worthing
Colchester
Chichester

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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