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Cheap flights from Ottawa to London from £204

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 3/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Cheap return flights

Logo
05:55 - 09:50YOW-LGW
22h 55m2 stops
Logo
11:35 - 00:22LGW-YOW
17h 47m2 stops
£496
Find Deal
to., 18 sep. - to., 9 okt.
Logo
10:50 - 06:20YOW-LGW
14h 30m1 stop
Logo
13:05 - 14:56LGW-YOW
30h 51m1 stop
£504
Find Deal
ma., 8 sep. - on., 17 sep.
Logo
05:55 - 09:50YOW-LGW
22h 55m2 stops
Logo
12:40 - 00:22LGW-YOW
16h 42m1 stop
£506
Find Deal
ma., 15 sep. - ma., 22 sep.
Air Transat Logo
17:05 - 07:55YOW-LGW
9h 50m1 stop
Air Transat Logo
12:40 - 20:35LGW-YOW
12h 55m1 stop
£526Air Transat
Find Deal
sø., 17 aug. - to., 4 sep.
Air Transat Logo
11:20 - 07:55YOW-LGW
15h 35m1 stop
Air Transat Logo
12:40 - 20:01LGW-YOW
12h 21m1 stop
£528Air Transat
Find Deal
sø., 17 aug. - to., 28 aug.
Porter Airlines Logo
14:20 - 07:55YOW-LGW
12h 35m1 stop
Porter Airlines Logo
12:40 - 20:35LGW-YOW
12h 55m1 stop
£530Porter Airlines
Find Deal
ti., 16 sep. - ma., 22 sep.
Porter Airlines Logo
14:20 - 07:55YOW-LGW
12h 35m1 stop
Porter Airlines Logo
12:40 - 20:35LGW-YOW
12h 55m1 stop
£533Porter Airlines
Find Deal
on., 13 aug. - ma., 22 sep.
WestJet Logo
05:55 - 09:25YOW-LGW
22h 30m2 stops
WestJet Logo
10:45 - 00:22LGW-YOW
18h 37m2 stops
£533WestJet
Find Deal
ti., 7 okt. - on., 15 okt.
SWISS Logo
13:55 - 17:50YOW-LGW
22h 55m2 stops
SWISS Logo
18:40 - 19:18LGW-YOW
29h 38m2 stops
£565SWISS
Find Deal
to., 23 okt. - lø., 8 nov.
SWISS Logo
14:00 - 17:50YOW-LGW
22h 50m2 stops
SWISS Logo
18:35 - 17:04LGW-YOW
51h 29m2 stops
£567SWISS
Find Deal
ti., 23 sep. - on., 15 okt.

Porter Airlines flights from Ottawa to London Gatwick Airport

Our best Porter Airlines deals on Ottawa to London Gatwick Airport flight tickets
Porter Airlines
16 Sept
YOW14:20Ottawa
12h 35m
1 stop
LGW07:55London Gatwick
22 Sept
LGW12:40London Gatwick
12h 55m
1 stop
YOW20:35Ottawa
£530
Find similar
Porter Airlines
13 Aug
YOW14:20Ottawa
12h 35m
1 stop
LGW07:55London Gatwick
22 Sept
LGW12:40London Gatwick
12h 55m
1 stop
YOW20:35Ottawa
£533
Find similar
Porter Airlines
12 Aug
YOW14:20Ottawa
15h 25m
1 stop
LGW10:45London Gatwick
21 Sept
LGW12:40London Gatwick
24h 26m
1 stop
YOW08:06Ottawa
£574
Find similar

SWISS flights from Ottawa to London Gatwick Airport

Our best SWISS deals on Ottawa to London Gatwick Airport flight tickets
SWISS
23 Oct
YOW13:55Ottawa
22h 55m
2 stops
LGW17:50London Gatwick
8 Nov
LGW18:40London Gatwick
29h 38m
2 stops
YOW19:18Ottawa
£565
Find similar
SWISS
23 Sept
YOW14:00Ottawa
22h 50m
2 stops
LGW17:50London Gatwick
15 Oct
LGW18:35London Gatwick
51h 29m
2 stops
YOW17:04Ottawa
£567
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 1 august 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

to. 18/9

05:55-09:50

2 stops22h 55m

London Gatwick

to. 9/10

11:35-00:22

2 stops17h 47m

£496

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

ma. 8/9

10:50-06:20

1 stop14h 30m

London Gatwick

on. 17/9

13:05-14:56

1 stop30h 51m

£504

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

ma. 15/9

05:55-09:50

2 stops22h 55m

London Gatwick

ma. 22/9

12:40-00:22

1 stop16h 42m

£506

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

sø. 17/8

17:05-07:55

1 stop9h 50m

London Gatwick

to. 4/9

12:40-20:35

1 stop12h 55m

£526

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

sø. 17/8

11:20-07:55

1 stop15h 35m

London Gatwick

to. 28/8

12:40-20:01

1 stop12h 21m

£528

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

ti. 16/9

14:20-07:55

1 stop12h 35m

London Gatwick

ma. 22/9

12:40-20:35

1 stop12h 55m

£530

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

on. 13/8

14:20-07:55

1 stop12h 35m

London Gatwick

ma. 22/9

12:40-20:35

1 stop12h 55m

£533

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

ti. 7/10

05:55-09:25

2 stops22h 30m

London Gatwick

on. 15/10

10:45-00:22

2 stops18h 37m

£533

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

to. 23/10

13:55-17:50

2 stops22h 55m

London Gatwick

lø. 8/11

18:40-19:18

2 stops29h 38m

£565

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

ti. 23/9

14:00-17:50

2 stops22h 50m

London Gatwick

on. 15/10

18:35-17:04

2 stops51h 29m

£567

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 typical price of a round-trip flight between Ottawa and London Gatwick Airport?

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 £500, 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 May to fly from Ottawa, when ticket prices are also cheap, with an average price of £552.

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 £550. 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 £582. 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 £547. In contrast, the most expensive time of day to depart to London Gatwick Airport is at midday when prices are around £1,182.

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

You could potentially save up to 60% 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

Best price found

£204

Fastest flight time

9h 50m

Direct flights

None
The best one-way flight to London Gatwick Airport from Ottawa in the past 72 hours is £204. The best return flight deal from Ottawa to London Gatwick Airport found on momondo in the last 72 hours is £496.
The fastest flight from Ottawa to London Gatwick Airport takes 9h 50m
There are no direct flights from Ottawa to London Gatwick Airport. Popular non-direct route for this connection is Ottawa Airport - London Gatwick Airport.
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  • 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
Slough
Southend-on-Sea
Maidstone
Canterbury
Gatwick
Ipswich
Ilford
Dartford
Guildford
Colchester
Worthing
Hounslow
Dover
Winchester
Margate
Chelmsford
Bedford

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.

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