Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Ontario to London from C$ 349

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to London departing on 26/1. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Ontario to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Transat Logo
6:50 p.m. - 9:45 a.m.
YOW
-
LGW
9h 55m1 stop
Air Transat Logo
11:40 a.m. - 6:33 p.m.
LGW
-
YOW
11h 53m1 stop
C$ 735Air Transat
Tue, 3 Feb - Sun, 15 Feb
Icelandair Logo
7:40 p.m. - 10:55 a.m.
YYZ
-
LGW
10h 15m1 stop
Icelandair Logo
11:55 a.m. - 6:15 p.m.
LGW
-
YYZ
11h 20m1 stop
C$ 735Icelandair
Mon, 19 Jan - Tue, 3 Feb
TAP AIR PORTUGAL Logo
10:45 p.m. - 3:45 p.m.
YYZ
-
LGW
12h 00m1 stop
TAP AIR PORTUGAL Logo
4:35 p.m. - 3:20 p.m.
LGW
-
YYZ
27h 45m1 stop
C$ 741TAP AIR PORTUGAL
Mon, 12 Jan - Mon, 19 Jan
TAP AIR PORTUGAL Logo
10:55 p.m. - 3:35 p.m.
YYZ
-
LGW
11h 40m1 stop
TAP AIR PORTUGAL Logo
10:35 a.m. - 3:15 p.m.
LGW
-
YYZ
33h 40m1 stop
C$ 742TAP AIR PORTUGAL
Mon, 4 May - Sun, 10 May
Multiple Airlines Logo
12:30 p.m. - 6:00 a.m.
YTZ
-
LGW
12h 30m1 stop
Multiple Airlines Logo
1:00 p.m. - 10:10 p.m.
LGW
-
YTZ
13h 10m1 stop
C$ 797Multiple Airlines
Tue, 3 Mar - Wed, 11 Mar
Porter Airlines Logo
5:25 p.m. - 9:45 a.m.
YUL
-
LGW
11h 20m1 stop
Porter Airlines Logo
11:40 a.m. - 6:30 p.m.
LGW
-
YUL
11h 50m1 stop
C$ 805Porter Airlines
Mon, 12 Jan - Sun, 18 Jan
Porter Airlines Logo
5:25 p.m. - 9:45 a.m.
YUL
-
LGW
11h 20m1 stop
Porter Airlines Logo
11:40 a.m. - 4:55 p.m.
LGW
-
YUL
33h 15m1 stop
C$ 806Porter Airlines
Thu, 29 Jan - Tue, 10 Mar
Multiple Airlines Logo
9:40 p.m. - 7:25 p.m.
YUL
-
LGW
16h 45m1 stop
Multiple Airlines Logo
7:55 a.m. - 7:40 p.m.
LGW
-
YUL
16h 45m1 stop
C$ 813Multiple Airlines
Fri, 30 Jan - Sun, 8 Feb
WestJet Logo
6:00 a.m. - 9:15 a.m.
YKF
-
LGW
22h 15m2 stops
WestJet Logo
10:35 a.m. - 12:45 a.m.
LGW
-
YKF
43h 10m2 stops
C$ 1,505WestJet
Wed, 20 May - Tue, 26 May
WestJet Logo
6:10 p.m. - 9:05 a.m.
YHM
-
LGW
33h 55m2 stops
WestJet Logo
11:00 a.m. - 5:10 p.m.
LGW
-
YHM
35h 10m2 stops
C$ 1,939WestJet
Mon, 25 May - Mon, 15 Jun

TAP AIR PORTUGAL flights from Region of Ontario to London Gatwick Airport

Our best TAP AIR PORTUGAL deals on Region of Ontario to London Gatwick Airport flight tickets
TAP AIR PORTUGAL
4 May
YYZ10:55 p.m.Toronto Pearson Intl
11h 40m
1 stop
LGW3:35 p.m.London Gatwick
10 May
LGW10:35 a.m.London Gatwick
33h 40m
1 stop
YYZ3:15 p.m.Toronto Pearson Intl
C$ 742
Find similar
TAP AIR PORTUGAL
6 May
YYZ5:35 p.m.Toronto Pearson Intl
15h 25m
1 stop
LGW2:00 p.m.London Gatwick
17 May
LGW10:35 a.m.London Gatwick
33h 40m
1 stop
YYZ3:15 p.m.Toronto Pearson Intl
C$ 743
Find similar
TAP AIR PORTUGAL
25 May
YYZ10:55 p.m.Toronto Pearson Intl
11h 40m
1 stop
LGW3:35 p.m.London Gatwick
15 Jun
LGW4:25 p.m.London Gatwick
26h 35m
1 stop
YYZ2:00 p.m.Toronto Pearson Intl
C$ 746
Find similar

Porter Airlines flights from Region of Ontario to London Gatwick Airport

Our best Porter Airlines deals on Region of Ontario to London Gatwick Airport flight tickets
Porter Airlines
3 Feb
YYZ9:35 p.m.Toronto Pearson Intl
7h 10m
LGW9:45 a.m.London Gatwick
10 Feb
LGW11:40 a.m.London Gatwick
8h 20m
YYZ3:00 p.m.Toronto Pearson Intl
C$ 752
Find similar
Porter Airlines
12 Jan
YUL5:25 p.m.Montreal Pierre Elliott Trudeau Intl
11h 20m
1 stop
LGW9:45 a.m.London Gatwick
18 Jan
LGW11:40 a.m.London Gatwick
11h 50m
1 stop
YUL6:30 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 805
Find similar
Porter Airlines
29 Jan
YUL5:25 p.m.Montreal Pierre Elliott Trudeau Intl
11h 20m
1 stop
LGW9:45 a.m.London Gatwick
10 Mar
LGW11:40 a.m.London Gatwick
33h 15m
1 stop
YUL4:55 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 806
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario 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 96,600 searches. Data last updated 28 December 2025.
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

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Tue 3/2

6:50 p.m.-9:45 a.m.

1 stop9h 55m

London Gatwick

Sun 15/2

11:40 a.m.-6:33 p.m.

1 stop11h 53m

C$ 735

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Mon 19/1

7:40 p.m.-10:55 a.m.

1 stop10h 15m

London Gatwick

Tue 3/2

11:55 a.m.-6:15 p.m.

1 stop11h 20m

C$ 735

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Mon 12/1

10:45 p.m.-3:45 p.m.

1 stop12h 00m

London Gatwick

Mon 19/1

4:35 p.m.-3:20 p.m.

1 stop27h 45m

C$ 741

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Mon 4/5

10:55 p.m.-3:35 p.m.

1 stop11h 40m

London Gatwick

Sun 10/5

10:35 a.m.-3:15 p.m.

1 stop33h 40m

C$ 742

TorontoLondon

YTZ - LGW

YTZLGW

Toronto Island

Tue 3/3

12:30 p.m.-6:00 a.m.

1 stop12h 30m

London Gatwick

Wed 11/3

1:00 p.m.-10:10 p.m.

1 stop13h 10m

C$ 797

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 12/1

5:25 p.m.-9:45 a.m.

1 stop11h 20m

London Gatwick

Sun 18/1

11:40 a.m.-6:30 p.m.

1 stop11h 50m

C$ 805

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Thu 29/1

5:25 p.m.-9:45 a.m.

1 stop11h 20m

London Gatwick

Tue 10/3

11:40 a.m.-4:55 p.m.

1 stop33h 15m

C$ 806

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Fri 30/1

9:40 p.m.-7:25 p.m.

1 stop16h 45m

London Gatwick

Sun 8/2

7:55 a.m.-7:40 p.m.

1 stop16h 45m

C$ 813

TorontoLondon

YKF - LGW

YKFLGW

Toronto Region of Waterloo Intl

Wed 20/5

6:00 a.m.-9:15 a.m.

2 stops22h 15m

London Gatwick

Tue 26/5

10:35 a.m.-12:45 a.m.

2 stops43h 10m

C$ 1,505

HamiltonLondon

YHM - LGW

YHMLGW

Hamilton

Mon 25/5

6:10 p.m.-9:05 a.m.

2 stops33h 55m

London Gatwick

Mon 15/6

11:00 a.m.-5:10 p.m.

2 stops35h 10m

C$ 1,939

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to London from

How to get the cheapest flight ticket from Region of 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 month to fly to London Gatwick Airport?

If you are unable to visit London Gatwick Airport during the month of February, then departing from Region of Ontario during the month January is also very affordable. Most momondo users find prices during this month for around C$ 715.

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

The cheapest day to depart on your flight to London Gatwick Airport is on a Sunday when prices can be found for as low as C$ 791. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from Region of Ontario because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 857.

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

Our most recent data shows that the best time of day to fly to London Gatwick Airport is in the evening. Flights from Region of Ontario to London Gatwick Airport during this time can be as low as C$ 835. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 892 on average. Flights to London Gatwick Airport from Region of Ontario at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Ontario to London Gatwick flight route?

Fly from Toronto Pearson Intl to London Gatwick for the best Ontario - London Gatwick flight prices

How far in advance should I book a flight to London Gatwick Airport?

You are more likely to see cheaper flights to London Gatwick Airport from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to London Gatwick Airport for around C$ 846 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Gatwick Airport from Region of Ontario for as low as C$ 735 on momondo.

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

There are 3 cabin classes available to choose from on Ontario 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 Region of Ontario to London Gatwick Airport flights?

No. A direct flight is the cheapest option for a flight between Region of Ontario to London Gatwick Airport.

Cheap Region of Ontario to London Gatwick Airport flight deals and tips

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

Best price found

C$ 457

Fastest flight time

6h 45m

Direct flights

Every day
The best one-way flight to London Gatwick Airport from Region of Ontario in the past 72 hours is C$ 457. The best round-trip flight deal from Region of Ontario to London Gatwick Airport found on momondo in the last 72 hours is C$ 761.
The fastest flight from Region of Ontario to London Gatwick Airport takes 6h 45m
Direct flights go from Region of Ontario to London Gatwick Airport every day.
Search flight deals

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

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

  • How many operators does momondo search for flights from Ontario to London Gatwick Airport?

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

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

    The travel and health documents required for your trip to London Gatwick Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Gatwick Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Region of Ontario to London Gatwick Airport?

Best airlines flying from Region of Ontario to London Gatwick Airport

Compare and see reviews for airlines that fly from Region of Ontario to London Gatwick Airport with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom C$ 424Free CancellationRating
6.8
7,658 reviews
Search Lufthansa flights
Air TransatPriceFrom C$ 572Free CancellationRating
7.7
485 reviews
Search Air Transat flights
TAP AIR PORTUGALPriceFrom C$ 597Free CancellationRating
7.2
2,098 reviews
Search TAP AIR PORTUGAL flights
IcelandairPriceFrom C$ 634Free CancellationRating
7.0
592 reviews
Search Icelandair flights
Porter AirlinesPriceFrom C$ 643Free CancellationRating
8.0
402 reviews
Search Porter Airlines flights
Air CanadaPriceFrom C$ 702Free CancellationRating
7.1
10,562 reviews
Search Air Canada flights
WestJetPriceFrom C$ 708Free CancellationRating
7.2
3,222 reviews
Search WestJet flights
British AirwaysPriceFrom C$ 713Free CancellationRating
6.7
7,616 reviews
Search British Airways flights

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Ipswich
Gatwick
Ilford
Chelmsford
Wokingham
Slough
Feltham
Hayes
Uxbridge
Wembley
Waterlooville
Newport
Basingstoke
Milton Keynes
Dover
Worthing
Guildford
Maidstone
Woking

Why use momondo?

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

It is quick and easy to find Ontario to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

Yes. momondo allows you to filter the results for Ontario to London flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Ontario 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 Ontario to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ontario to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your London Gatwick Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 27/1
Tue 3/2
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London

Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to London Heathrow Airportfrom C$ 604
Flights to London City Airportfrom C$ 816
Flights to London Stansted Airportfrom C$ 625
Flights to London Luton Airportfrom C$ 644
Flights to London Southend Airportfrom C$ 719
Flights to Glasgow Intl Airportfrom C$ 742
Flights to Belfast Intl Airportfrom C$ 845
Flights to Belfast City Airportfrom C$ 845