What is the cheapest airline that flies from Ontario to London Gatwick?

Turkish Airlines and Icelandair are the most popular carriers operating from Ontario to London Gatwick

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 refresh daily.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario 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.

£250 Cheap Flights from Ontario to London Gatwick Airport in 2026

Find the cheapest flights from Ontario to London

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

06:00 - 10:50ONT Ontario-LGW London Gatwick

20h 50m2 stops Dallas/Fort Worth Madrid Barajas

19:40 - 09:54LGW London Gatwick-ONT Ontario

22h 14m2 stops Madrid Barajas Dallas/Fort Worth

£644Iberia

Mon, 23 Nov - Wed, 2 Dec

12:18 - 15:45ONT Ontario-LGW London Gatwick

19h 27m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

10:00 - 23:00LGW London Gatwick-ONT Ontario

21h 00m2 stops Paris Charles de Gaulle Seattle/Tacoma Intl

£651Delta

Wed, 4 Nov - Wed, 18 Nov

23:15 - 15:45ONT Ontario-LGW London Gatwick

33h 30m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

10:00 - 23:00LGW London Gatwick-ONT Ontario

21h 00m2 stops Paris Charles de Gaulle Seattle/Tacoma Intl

£679Delta

Sun, 25 Oct - Fri, 20 Nov

07:00 - 09:00ONT Ontario-LGW London Gatwick

18h 00m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

10:00 - 22:43LGW London Gatwick-ONT Ontario

20h 43m2 stops Paris Charles de Gaulle Seattle/Tacoma Intl

£694Air France

Mon, 25 Jan - Mon, 1 Feb

07:07 - 09:25ONT Ontario-LGW London Gatwick

18h 18m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

10:35 - 22:43LGW London Gatwick-ONT Ontario

20h 08m2 stops Paris Charles de Gaulle Seattle/Tacoma Intl

£729Delta

Tue, 6 Oct - Tue, 13 Oct

06:00 - 10:40ONT Ontario-LGW London Gatwick

20h 40m2 stops Dallas/Fort Worth Orlando

12:20 - 22:37LGW London Gatwick-ONT Ontario

18h 17m2 stops Tampa Dallas/Fort Worth

£731American Airlines

Fri, 18 Sep - Wed, 23 Sep

10:05 - 10:55ONT Ontario-LGW London Gatwick

16h 50m2 stops Denver Intl Reykjavik Keflavik Intl

11:55 - 21:40LGW London Gatwick-ONT Ontario

17h 45m2 stops Reykjavik Keflavik Intl Denver Intl

£734Multiple Airlines

Tue, 3 Nov - Wed, 11 Nov

07:05 - 09:25ONT Ontario-LGW London Gatwick

18h 20m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

10:35 - 20:24LGW London Gatwick-ONT Ontario

17h 49m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson

£742Delta

Tue, 8 Sep - Tue, 15 Sep

07:05 - 09:25ONT Ontario-LGW London Gatwick

18h 20m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

10:25 - 22:40LGW London Gatwick-ONT Ontario

20h 15m2 stops Paris Charles de Gaulle Seattle/Tacoma Intl

£742Delta

Sun, 20 Sep - Sun, 27 Sep

06:00 - 10:10ONT Ontario-LGW London Gatwick

20h 10m2 stops Dallas/Fort Worth Orlando

14:00 - 11:47LGW London Gatwick-ONT Ontario

29h 47m2 stops Orlando Dallas/Fort Worth

£748American Airlines

Mon, 21 Sep - Mon, 28 Sep

Cheap last-minute flights

Enter your travel dates to find the best prices.

13:50 - 14:40ONT Ontario-LGW London Gatwick

16h 50m2 stops Denver Intl Reykjavik Keflavik Intl

13:00 - 22:00LGW London Gatwick-ONT Ontario

17h 00m2 stops Reykjavik Keflavik Intl Denver Intl

£1,697Multiple Airlines

Tue, 11 Aug - Tue, 18 Aug

23:59 - 22:25ONT Ontario-LGW London Gatwick

38h 26m2 stops New York John F Kennedy Intl Istanbul

07:05 - 23:11LGW London Gatwick-ONT Ontario

24h 06m2 stops Istanbul Seattle/Tacoma Intl

£2,008Multiple Airlines

Fri, 14 Aug - Mon, 17 Aug

14:00 - 14:40ONT Ontario-LGW London Gatwick

16h 40m2 stops Denver Intl Reykjavik Keflavik Intl

13:00 - 23:24LGW London Gatwick-ONT Ontario

18h 24m2 stops Reykjavik Keflavik Intl Seattle/Tacoma Intl

£2,355Multiple Airlines

Thu, 13 Aug - Thu, 20 Aug

13:50 - 14:40ONT Ontario-LGW London Gatwick

16h 50m2 stops Denver Intl Reykjavik Keflavik Intl

13:00 - 22:10LGW London Gatwick-ONT Ontario

17h 10m2 stops Reykjavik Keflavik Intl Denver Intl

£2,466Multiple Airlines

Tue, 11 Aug - Thu, 13 Aug

13:50 - 14:40ONT Ontario-LGW London Gatwick

16h 50m2 stops Denver Intl Reykjavik Keflavik Intl

13:00 - 22:00LGW London Gatwick-ONT Ontario

17h 00m2 stops Reykjavik Keflavik Intl Denver Intl

£2,495Multiple Airlines

Tue, 11 Aug - Sun, 23 Aug

10:55 - 11:45ONT Ontario-LGW London Gatwick

16h 50m2 stops Denver Intl Reykjavik Keflavik Intl

13:00 - 23:52LGW London Gatwick-ONT Ontario

18h 52m2 stops Reykjavik Keflavik Intl Portland

£3,501Multiple Airlines

Wed, 12 Aug - Sun, 16 Aug

13:50 - 14:40ONT Ontario-LGW London Gatwick

16h 50m2 stops Denver Intl Reykjavik Keflavik Intl

13:00 - 22:10LGW London Gatwick-ONT Ontario

17h 10m2 stops Reykjavik Keflavik Intl Denver Intl

£4,265Multiple Airlines

Tue, 11 Aug - Thu, 13 Aug

23:59 - 09:55ONT Ontario-LGW London Gatwick

25h 56m2 stops New York John F Kennedy Intl Istanbul

17:35 - 21:59LGW London Gatwick-ONT Ontario

60h 24m2 stops Istanbul New York John F Kennedy Intl

£4,340Turkish Airlines

Fri, 14 Aug - Thu, 20 Aug

23:13 - 09:55ONT Ontario-LGW London Gatwick

26h 42m2 stops New York John F Kennedy Intl Istanbul

17:35 - 21:59LGW London Gatwick-ONT Ontario

36h 24m2 stops Istanbul New York John F Kennedy Intl

£6,710Turkish Airlines

Sat, 15 Aug - Fri, 21 Aug

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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

19 Sept

ONT22:39Ontario

27h 16m

2 stops

LGW09:55London Gatwick

29 Sept

LGW17:35London Gatwick

35h 22m

2 stops

ONT20:57Ontario

£878

Turkish Airlines

18 Sept

ONT22:39Ontario

34h 01m

2 stops

LGW16:40London Gatwick

21 Sept

LGW17:35London Gatwick

35h 22m

2 stops

ONT20:57Ontario

£884

Turkish Airlines

21 Sept

ONT22:39Ontario

33h 56m

2 stops

LGW16:35London Gatwick

28 Sept

LGW10:50London Gatwick

42h 07m

2 stops

ONT20:57Ontario

£894

Iberia flights from Ontario to London Gatwick Airport

Our best Iberia deals on Ontario to London Gatwick Airport flight tickets

Iberia

23 Nov

ONT06:00Ontario

20h 50m

2 stops

LGW10:50London Gatwick

2 Dec

LGW19:40London Gatwick

22h 14m

2 stops

ONT09:54Ontario

£644

Iberia

25 Oct

ONT07:00Ontario

20h 50m

2 stops

LGW10:50London Gatwick

7 Nov

LGW19:40London Gatwick

22h 00m

2 stops

ONT09:40Ontario

£825

Iberia

19 Oct

ONT14:22Ontario

21h 38m

2 stops

LGW20:00London Gatwick

4 Nov

LGW19:40London Gatwick

22h 00m

2 stops

ONT09:40Ontario

£857

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 return flight

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Mon 23/11

06:00-10:50

2 stops20h 50m

London Gatwick

Wed 2/12

19:40-09:54

2 stops22h 14m

£644

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Wed 4/11

12:18-15:45

2 stops19h 27m

London Gatwick

Wed 18/11

10:00-23:00

2 stops21h 00m

£651

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Sun 25/10

23:15-15:45

2 stops33h 30m

London Gatwick

Fri 20/11

10:00-23:00

2 stops21h 00m

£679

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Mon 25/1

07:00-09:00

2 stops18h 00m

London Gatwick

Mon 1/2

10:00-22:43

2 stops20h 43m

£694

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Tue 6/10

07:07-09:25

2 stops18h 18m

London Gatwick

Tue 13/10

10:35-22:43

2 stops20h 08m

£729

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Fri 18/9

06:00-10:40

2 stops20h 40m

London Gatwick

Wed 23/9

12:20-22:37

2 stops18h 17m

£731

Fastest return journey

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Tue 3/11

10:05-10:55

2 stops16h 50m

London Gatwick

Wed 11/11

11:55-21:40

2 stops17h 45m

£734

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Tue 8/9

07:05-09:25

2 stops18h 20m

London Gatwick

Tue 15/9

10:35-20:24

2 stops17h 49m

£742

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Sun 20/9

07:05-09:25

2 stops18h 20m

London Gatwick

Sun 27/9

10:25-22:40

2 stops20h 15m

£742

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Mon 21/9

06:00-10:10

2 stops20h 10m

London Gatwick

Mon 28/9

14:00-11:47

2 stops29h 47m

£748

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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

According to our data, Monday is the cheapest day to fly to London Gatwick Airport from Ontario. The lowest ticket price found for a Monday departure recently was £361. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Ontario to London Gatwick Airport on a Saturday will generally be more expensive and average around £537. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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 return 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

Fastest flight time	15h 47m
Direct flights	None

The fastest flight from Ontario to London Gatwick Airport takes 15h 47m

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 distance between Ontario and London Gatwick is about 5431.4 mi. In terms of flight time, this usually takes a little over 15h 47m.
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 refresh daily.
How old do you have to be to fly from Ontario Airport to London Gatwick Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario 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.

Eastbourne

Wembley

Gatwick

Milton Keynes

Luton

Southend-on-Sea

Slough

Ipswich

Maidstone

Folkestone

Ilford

Hastings

Canterbury

Guildford

Chichester

Hayes

Bedford

Harlow

Colchester

Chelmsford

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to London . Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Ontario to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to London.

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

Price alerts on flights to London from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.