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

Icelandair and Turkish Airlines 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.

£236 Cheap Flights from Ontario to London Gatwick Airport in 2026/27

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.

20:03 - 10:55ONT Ontario-LGW London Gatwick

30h 52m3 stops Dallas/Fort Worth Denver Intl Reykjavik Keflavik Intl

11:55 - 23:51LGW London Gatwick-ONT Ontario

19h 56m2 stops Reykjavik Keflavik Intl Denver Intl

£569Multiple Airlines

Mon, 2 Nov - Mon, 16 Nov

06:25 - 10:55ONT Ontario-LGW London Gatwick

20h 30m2 stops Denver Intl Reykjavik Keflavik Intl

11:55 - 23:51LGW London Gatwick-ONT Ontario

19h 56m2 stops Reykjavik Keflavik Intl Denver Intl

£672Multiple Airlines

Tue, 10 Nov - Mon, 16 Nov

06:25 - 06:50ONT Ontario-LGW London Gatwick

17h 25m2 stops Denver Intl Orlando

21:00 - 19:28LGW London Gatwick-ONT Ontario

30h 28m3 stops Barcelona-El Prat Lisbon Humberto Delgado San Francisco

£699Multiple Airlines

Tue, 27 Oct - Thu, 5 Nov

11:52 - 06:50ONT Ontario-LGW London Gatwick

35h 58m2 stops Denver Intl Orlando

12:35 - 10:42LGW London Gatwick-ONT Ontario

29h 07m2 stops Orlando Denver Intl

£708Multiple Airlines

Mon, 26 Oct - Fri, 30 Oct

06:25 - 10:55ONT Ontario-LGW London Gatwick

21h 30m2 stops Denver Intl Reykjavik Keflavik Intl

11:55 - 23:51LGW London Gatwick-ONT Ontario

18h 56m2 stops Reykjavik Keflavik Intl Denver Intl

£712Multiple Airlines

Tue, 27 Oct - Sat, 31 Oct

06:15 - 10:55ONT Ontario-LGW London Gatwick

21h 40m2 stops Denver Intl Reykjavik Keflavik Intl

11:55 - 09:40LGW London Gatwick-ONT Ontario

29h 45m3 stops Reykjavik Keflavik Intl Denver Intl Las Vegas Harry Reid Intl

£714Multiple Airlines

Mon, 26 Oct - Mon, 2 Nov

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

17h 53m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

10:00 - 22:59LGW London Gatwick-ONT Ontario

20h 59m2 stops Paris Charles de Gaulle Seattle/Tacoma Intl

£724Delta

Sun, 8 Nov - Wed, 2 Dec

06:15 - 10:55ONT Ontario-LGW London Gatwick

21h 40m2 stops Denver Intl Reykjavik Keflavik Intl

11:55 - 23:51LGW London Gatwick-ONT Ontario

19h 56m2 stops Reykjavik Keflavik Intl Denver Intl

£733Multiple Airlines

Mon, 26 Oct - Mon, 2 Nov

06:25 - 10:55ONT Ontario-LGW London Gatwick

21h 30m2 stops Denver Intl Reykjavik Keflavik Intl

11:55 - 23:51LGW London Gatwick-ONT Ontario

19h 56m2 stops Reykjavik Keflavik Intl Denver Intl

£740Multiple Airlines

Thu, 29 Oct - Fri, 6 Nov

10:25 - 10:55ONT Ontario-LGW London Gatwick

17h 30m2 stops Denver Intl Reykjavik Keflavik Intl

11:55 - 21:45LGW London Gatwick-ONT Ontario

17h 50m2 stops Reykjavik Keflavik Intl Denver Intl

£746Multiple Airlines

Wed, 28 Oct - Wed, 4 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

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

18h 20m2 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

£806Delta

Wed, 30 Sep - Tue, 6 Oct

06:15 - 10:00ONT Ontario-LGW London Gatwick

19h 45m2 stops Denver Intl Orlando

14:00 - 10:29LGW London Gatwick-ONT Ontario

28h 29m2 stops Orlando Denver Intl

£915Multiple Airlines

Mon, 5 Oct - Fri, 9 Oct

06:15 - 10:00ONT Ontario-LGW London Gatwick

19h 45m2 stops Denver Intl Orlando

14:00 - 16:48LGW London Gatwick-ONT Ontario

34h 48m2 stops Orlando Dallas/Fort Worth

£1,048Multiple Airlines

Mon, 5 Oct - Fri, 16 Oct

14:13 - 22:25ONT Ontario-LGW London Gatwick

24h 12m2 stops Seattle/Tacoma Intl Istanbul

07:05 - 23:42LGW London Gatwick-ONT Ontario

24h 37m2 stops Istanbul Seattle/Tacoma Intl

£1,315Multiple Airlines

Sat, 3 Oct - Mon, 5 Oct

10:25 - 20:00ONT Ontario-LGW London Gatwick

25h 35m2 stops Dallas/Fort Worth Madrid Barajas

20:40 - 18:44LGW London Gatwick-ONT Ontario

30h 04m2 stops Madrid Barajas Dallas/Fort Worth

£1,354Iberia

Fri, 2 Oct - Mon, 5 Oct

12:12 - 14:40ONT Ontario-LGW London Gatwick

18h 28m2 stops Seattle/Tacoma Intl Frankfurt am Main

19:35 - 23:42LGW London Gatwick-ONT Ontario

36h 07m2 stops Frankfurt am Main Seattle/Tacoma Intl

£1,372Multiple Airlines

Fri, 2 Oct - Sun, 4 Oct

14:22 - 20:00ONT Ontario-LGW London Gatwick

21h 38m2 stops Dallas/Fort Worth Madrid Barajas

11:30 - 23:52LGW London Gatwick-ONT Ontario

20h 22m2 stops Madrid Barajas Dallas/Fort Worth

£1,435Iberia

Wed, 30 Sep - Wed, 7 Oct

10:25 - 20:00ONT Ontario-LGW London Gatwick

25h 35m2 stops Dallas/Fort Worth Madrid Barajas

11:30 - 23:52LGW London Gatwick-ONT Ontario

20h 22m2 stops Madrid Barajas Dallas/Fort Worth

£1,438British Airways

Fri, 2 Oct - Wed, 7 Oct

22:39 - 09:55ONT Ontario-LGW London Gatwick

27h 16m2 stops New York John F Kennedy Intl Istanbul

17:35 - 20:59LGW London Gatwick-ONT Ontario

35h 24m2 stops Istanbul New York John F Kennedy Intl

£1,477Turkish Airlines

Fri, 2 Oct - Sun, 4 Oct

15:14 - 14:40ONT Ontario-LGW London Gatwick

15h 26m2 stops Seattle/Tacoma Intl Reykjavik Keflavik Intl

11:55 - 22:45LGW London Gatwick-ONT Ontario

18h 50m2 stops Reykjavik Keflavik Intl Denver Intl

£1,491Multiple Airlines

Fri, 2 Oct - Fri, 13 Nov

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Delta flights from Ontario to London Gatwick Airport

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

Delta

8 Nov

ONT07:07Ontario

17h 53m

2 stops

LGW09:00London Gatwick

2 Dec

LGW10:00London Gatwick

20h 59m

2 stops

ONT22:59Ontario

£724

Delta

5 Nov

ONT12:16Ontario

19h 29m

2 stops

LGW15:45London Gatwick

9 Nov

LGW10:00London Gatwick

21h 00m

2 stops

ONT23:00Ontario

£764

Delta

8 Nov

ONT07:07Ontario

17h 53m

2 stops

LGW09:00London Gatwick

15 Nov

LGW10:00London Gatwick

21h 00m

2 stops

ONT23:00Ontario

£770

Iberia flights from Ontario to London Gatwick Airport

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

Iberia

15 Nov

ONT06:00Ontario

20h 50m

2 stops

LGW10:50London Gatwick

21 Nov

LGW19:40London Gatwick

22h 07m

2 stops

ONT09:47Ontario

£767

Iberia

8 Nov

ONT07:00Ontario

19h 50m

2 stops

LGW10:50London Gatwick

16 Nov

LGW19:40London Gatwick

22h 00m

2 stops

ONT09:40Ontario

£871

Iberia

11 Nov

ONT07:00Ontario

19h 50m

2 stops

LGW10:50London Gatwick

18 Nov

LGW19:40London Gatwick

22h 07m

2 stops

ONT09:47Ontario

£876

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 2/11

20:03-10:55

3 stops30h 52m

London Gatwick

Mon 16/11

11:55-23:51

2 stops19h 56m

£569

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Tue 10/11

06:25-10:55

2 stops20h 30m

London Gatwick

Mon 16/11

11:55-23:51

2 stops19h 56m

£672

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Tue 27/10

06:25-06:50

2 stops17h 25m

London Gatwick

Thu 5/11

21:00-19:28

3 stops30h 28m

£699

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Mon 26/10

11:52-06:50

2 stops35h 58m

London Gatwick

Fri 30/10

12:35-10:42

2 stops29h 07m

£708

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Tue 27/10

06:25-10:55

2 stops21h 30m

London Gatwick

Sat 31/10

11:55-23:51

2 stops18h 56m

£712

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Mon 26/10

06:15-10:55

2 stops21h 40m

London Gatwick

Mon 2/11

11:55-09:40

3 stops29h 45m

£714

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Sun 8/11

07:07-09:00

2 stops17h 53m

London Gatwick

Wed 2/12

10:00-22:59

2 stops20h 59m

£724

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Mon 26/10

06:15-10:55

2 stops21h 40m

London Gatwick

Mon 2/11

11:55-23:51

2 stops19h 56m

£733

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Thu 29/10

06:25-10:55

2 stops21h 30m

London Gatwick

Fri 6/11

11:55-23:51

2 stops19h 56m

£740

Fastest return journey

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Wed 28/10

10:25-10:55

2 stops17h 30m

London Gatwick

Wed 4/11

11:55-21:45

2 stops17h 50m

£746

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, Wednesday is the cheapest day to fly to London Gatwick Airport from Ontario. The lowest ticket price found for a Wednesday departure recently was £587. 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 Friday will generally be more expensive and average around £598. 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

Best price found	£236
Fastest flight time	15h 47m
Direct flights	None

The best one-way flight to London Gatwick Airport from Ontario in the past 72 hours is £236. The best return flight deal from Ontario to London Gatwick Airport found on momondo in the last 72 hours is £569.

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

Southend-on-Sea

Luton

Slough

Ipswich

Maidstone

Folkestone

Hastings

Ilford

Canterbury

Chichester

Hayes

Bedford

Colchester

Guildford

Harlow

Chelmsford

Why use momondo?

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.