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Cheap flights from Ontario to London from $334

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ontario to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:25 am - 10:55 amONT  Ontario-LGW London Gatwick
21h 30m2 stops Denver Intl Reykjavik Keflavik Intl
Multiple Airlines Logo
11:55 am - 11:51 pmLGW  London Gatwick-ONT Ontario
19h 56m2 stops Reykjavik Keflavik Intl Denver Intl
$686Multiple Airlines
Wed, Oct 28 - Wed, Nov 4
Multiple Airlines Logo
6:15 am - 10:55 amONT  Ontario-LGW London Gatwick
21h 40m2 stops Denver Intl Reykjavik Keflavik Intl
Multiple Airlines Logo
11:55 am - 11:51 pmLGW  London Gatwick-ONT Ontario
19h 56m2 stops Reykjavik Keflavik Intl Denver Intl
$870Multiple Airlines
Mon, Oct 26 - Mon, Nov 2
Iberia Logo
7:00 am - 7:00 pmONT  Ontario-LGW London Gatwick
28h 00m2 stops Dallas/Fort Worth Madrid Barajas
Iberia Logo
7:40 pm - 11:54 amLGW  London Gatwick-ONT Ontario
24h 14m2 stops Madrid Barajas Dallas/Fort Worth
$877Iberia
Sun, Jan 17 - Wed, Jan 20
Multiple Airlines Logo
6:25 am - 10:55 amONT  Ontario-LGW London Gatwick
20h 30m2 stops Denver Intl Reykjavik Keflavik Intl
Multiple Airlines Logo
11:55 am - 11:51 pmLGW  London Gatwick-ONT Ontario
19h 56m2 stops Reykjavik Keflavik Intl Denver Intl
$909Multiple Airlines
Sun, Nov 1 - Sun, Nov 8
Multiple Airlines Logo
6:25 am - 10:55 amONT  Ontario-LGW London Gatwick
20h 30m2 stops Denver Intl Reykjavik Keflavik Intl
Multiple Airlines Logo
11:55 am - 11:51 pmLGW  London Gatwick-ONT Ontario
19h 56m2 stops Reykjavik Keflavik Intl Denver Intl
$911Multiple Airlines
Sun, Nov 1 - Sun, Nov 8
Multiple Airlines Logo
8:00 am - 10:55 amONT  Ontario-LGW London Gatwick
19h 55m3 stops Las Vegas Harry Reid Intl Denver Intl Reykjavik Keflavik Intl
Multiple Airlines Logo
11:55 am - 11:51 pmLGW  London Gatwick-ONT Ontario
19h 56m2 stops Reykjavik Keflavik Intl Denver Intl
$934Multiple Airlines
Mon, Oct 26 - Mon, Nov 2
Iberia Logo
7:00 am - 10:50 amONT  Ontario-LGW London Gatwick
19h 50m2 stops Dallas/Fort Worth Madrid Barajas
Iberia Logo
7:40 pm - 9:40 amLGW  London Gatwick-ONT Ontario
22h 00m2 stops Madrid Barajas Dallas/Fort Worth
$990Iberia
Fri, Nov 13 - Mon, Nov 16
Multiple Airlines Logo
10:05 am - 10:55 amONT  Ontario-LGW London Gatwick
16h 50m2 stops Denver Intl Reykjavik Keflavik Intl
Multiple Airlines Logo
11:55 am - 9:45 pmLGW  London Gatwick-ONT Ontario
17h 50m2 stops Reykjavik Keflavik Intl Denver Intl
$992Multiple Airlines
Tue, Nov 3 - Wed, Nov 11
Multiple Airlines Logo
6:15 am - 10:00 amONT  Ontario-LGW London Gatwick
19h 45m2 stops Denver Intl Orlando
Multiple Airlines Logo
2:00 pm - 4:48 pmLGW  London Gatwick-ONT Ontario
34h 48m2 stops Orlando Dallas/Fort Worth
$1,014Multiple Airlines
Fri, Oct 16 - Fri, Oct 23
Multiple Airlines Logo
11:25 am - 10:55 amONT  Ontario-LGW London Gatwick
15h 30m2 stops Denver Intl Reykjavik Keflavik Intl
Multiple Airlines Logo
11:55 am - 10:30 pmLGW  London Gatwick-ONT Ontario
17h 35m2 stops Reykjavik Keflavik Intl Denver Intl
$1,027Multiple Airlines
Mon, Mar 1 - Tue, Mar 16

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Turkish Airlines flights from Ontario to London Gatwick Airport

Our best Turkish Airlines deals on Ontario to London Gatwick Airport flight tickets
Turkish Airlines
Sep 22
ONT10:39 pmOntario
27h 16m
2 stops
LGW9:55 amLondon Gatwick
Oct 6
LGW5:35 pmLondon Gatwick
35h 24m
2 stops
ONT8:59 pmOntario
$1,516
Turkish Airlines
Sep 29
ONT10:39 pmOntario
34h 01m
2 stops
LGW4:40 pmLondon Gatwick
Oct 6
LGW5:35 pmLondon Gatwick
35h 24m
2 stops
ONT8:59 pmOntario
$1,713
Turkish Airlines
Oct 2
ONT10:39 pmOntario
27h 16m
2 stops
LGW9:55 amLondon Gatwick
Oct 6
LGW5:35 pmLondon Gatwick
35h 24m
2 stops
ONT8:59 pmOntario
$1,758

Iberia flights from Ontario to London Gatwick Airport

Our best Iberia deals on Ontario to London Gatwick Airport flight tickets
Iberia
Jan 17
ONT7:00 amOntario
28h 00m
2 stops
LGW7:00 pmLondon Gatwick
Jan 20
LGW7:40 pmLondon Gatwick
24h 14m
2 stops
ONT11:54 amOntario
$877
Iberia
Nov 13
ONT7:00 amOntario
19h 50m
2 stops
LGW10:50 amLondon Gatwick
Nov 16
LGW7:40 pmLondon Gatwick
22h 00m
2 stops
ONT9:40 amOntario
$990
Iberia
Oct 5
ONT2:22 pmOntario
21h 38m
2 stops
LGW8:00 pmLondon Gatwick
Oct 19
LGW8:40 pmLondon Gatwick
35h 12m
2 stops
ONT11:52 pmOntario
$1,064

momondo Fare Finder

 
Use the filters below to find and compare flights from Ontario to London Gatwick Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Wed 10/28

6:25 am-10:55 am

2 stops21h 30m

London Gatwick

Wed 11/4

11:55 am-11:51 pm

2 stops19h 56m

$686

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Mon 10/26

6:15 am-10:55 am

2 stops21h 40m

London Gatwick

Mon 11/2

11:55 am-11:51 pm

2 stops19h 56m

$870

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Sun 1/17

7:00 am-7:00 pm

2 stops28h 00m

London Gatwick

Wed 1/20

7:40 pm-11:54 am

2 stops24h 14m

$877

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Sun 11/1

6:25 am-10:55 am

2 stops20h 30m

London Gatwick

Sun 11/8

11:55 am-11:51 pm

2 stops19h 56m

$909

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Sun 11/1

6:25 am-10:55 am

2 stops20h 30m

London Gatwick

Sun 11/8

11:55 am-11:51 pm

2 stops19h 56m

$911

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Mon 10/26

8:00 am-10:55 am

3 stops19h 55m

London Gatwick

Mon 11/2

11:55 am-11:51 pm

2 stops19h 56m

$934

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Fri 11/13

7:00 am-10:50 am

2 stops19h 50m

London Gatwick

Mon 11/16

7:40 pm-9:40 am

2 stops22h 00m

$990

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Tue 11/3

10:05 am-10:55 am

2 stops16h 50m

London Gatwick

Wed 11/11

11:55 am-9:45 pm

2 stops17h 50m

$992

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Fri 10/16

6:15 am-10:00 am

2 stops19h 45m

London Gatwick

Fri 10/23

2:00 pm-4:48 pm

2 stops34h 48m

$1,014
Quickest round-trip

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Mon 3/1

11:25 am-10:55 am

2 stops15h 30m

London Gatwick

Tue 3/16

11:55 am-10:30 pm

2 stops17h 35m

$1,027

Flights are sorted by cheapest round-trip 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 Ontario 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 day to depart on your flight to London Gatwick Airport?

The cheapest day to depart from Ontario to London Gatwick Airport is on a Tuesday when prices can be found for as low as $630. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to London Gatwick Airport on Thursday is $819.

When to book flights from Ontario to London Gatwick Airport

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

Cheap Ontario to London Gatwick Airport (ONT to LGW) flight deals and tips

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

Best Price Found

$334

Fastest flight time

15h 30m

Direct flights

None
The best one-way flight to London Gatwick Airport from Ontario in the past 72 hours is $334. The best round-trip flight deal from Ontario to London Gatwick Airport found on momondo in the last 72 hours is $686.
The fastest flight from Ontario to London Gatwick Airport takes 15h 30m
There are no direct flights from Ontario to London Gatwick Airport. There are no popular flight routes from Ontario to London Gatwick Airport.
Search flight deals

Frequently asked questions about flying from Ontario to London Gatwick Airport

  • How far is Ontario to London Gatwick by plane?

    The straight-line distance from Ontario to London Gatwick is 5431.4 mi. Flights usually cover this in 15h 30m, depending on flying conditions and air traffic around both airports.

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to London Gatwick Airport.

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

    The necessary travel and health documents for your London Gatwick Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Milton Keynes
Hayes
Luton
Wembley
Dover
Croydon
Richmond
Kingston upon Thames
Stansted
Harrow
Cobham
Watford
Worthing
Slough
Eastbourne
Hook
Uxbridge
Ilford

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Ontario.

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

momondo does allow users to show only those flights to London from Ontario which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Ontario to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Ontario to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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