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Cheap flights from Ontario to London from C$ 417

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 15/6. 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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Find the cheapest flights from Ontario to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:50 p.m. - 10:45 a.m.
YUL
-
SEN
10h 55m
1 stop
Multiple Airlines Logo
11:10 a.m. - 11:35 a.m.
SEN
-
YUL
29h 25m
1 stop
C$ 858Multiple Airlines
Thu, 21 May - Mon, 1 Jun
Multiple Airlines Logo
7:55 p.m. - 8:10 p.m.
YYZ
-
SEN
19h 15m
2 stops
Multiple Airlines Logo
5:30 p.m. - 5:55 p.m.
SEN
-
YYZ
29h 25m
2 stops
C$ 864Multiple Airlines
Thu, 16 Apr - Sun, 19 Apr
Multiple Airlines Logo
7:55 p.m. - 8:10 p.m.
YYZ
-
SEN
19h 15m
2 stops
Multiple Airlines Logo
5:30 p.m. - 5:55 p.m.
SEN
-
YYZ
29h 25m
2 stops
C$ 875Multiple Airlines
Wed, 22 Apr - Sun, 26 Apr
Multiple Airlines Logo
11:45 p.m. - 4:40 p.m.
YYZ
-
SEN
11h 55m
1 stop
Multiple Airlines Logo
4:50 p.m. - 5:10 p.m.
SEN
-
YYZ
29h 20m
1 stop
C$ 913Multiple Airlines
Wed, 6 May - Wed, 13 May
Multiple Airlines Logo
3:40 p.m. - 10:45 a.m.
YYZ
-
SEN
14h 05m
2 stops
Multiple Airlines Logo
7:25 a.m. - 2:25 p.m.
SEN
-
YYZ
12h 00m
1 stop
C$ 922Multiple Airlines
Fri, 5 Jun - Sun, 14 Jun
Multiple Airlines Logo
9:35 p.m. - 1:00 p.m.
YUL
-
SEN
10h 25m
1 stop
Multiple Airlines Logo
7:25 a.m. - 3:45 p.m.
SEN
-
YUL
13h 20m
1 stop
C$ 924Multiple Airlines
Wed, 27 May - Sun, 7 Jun
Multiple Airlines Logo
6:50 p.m. - 10:30 a.m.
YUL
-
SEN
10h 40m
1 stop
Multiple Airlines Logo
7:25 a.m. - 7:20 p.m.
SEN
-
YUL
16h 55m
2 stops
C$ 925Multiple Airlines
Sun, 7 Jun - Sun, 21 Jun
Multiple Airlines Logo
11:45 p.m. - 4:40 p.m.
YYZ
-
SEN
11h 55m
1 stop
Multiple Airlines Logo
4:55 p.m. - 5:10 p.m.
SEN
-
YYZ
29h 15m
1 stop
C$ 928Multiple Airlines
Wed, 3 Jun - Sun, 7 Jun
Multiple Airlines Logo
11:45 p.m. - 4:40 p.m.
YYZ
-
SEN
11h 55m
1 stop
Multiple Airlines Logo
1:55 p.m. - 5:10 p.m.
SEN
-
YYZ
32h 15m
1 stop
C$ 929Multiple Airlines
Wed, 3 Jun - Thu, 11 Jun
Multiple Airlines Logo
6:50 p.m. - 10:30 a.m.
YUL
-
SEN
10h 40m
1 stop
Multiple Airlines Logo
7:25 a.m. - 7:20 p.m.
SEN
-
YUL
16h 55m
2 stops
C$ 931Multiple Airlines
Sun, 14 Jun - Sun, 21 Jun

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario to London Southend 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 31 March 2026.
Use the filters below to find and compare flights from Ontario to London Southend Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Thu 21/5

6:50 p.m.-10:45 a.m.

1 stop10h 55m

London Southend

Mon 1/6

11:10 a.m.-11:35 a.m.

1 stop29h 25m

C$ 858

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Thu 16/4

7:55 p.m.-8:10 p.m.

2 stops19h 15m

London Southend

Sun 19/4

5:30 p.m.-5:55 p.m.

2 stops29h 25m

C$ 864

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Wed 22/4

7:55 p.m.-8:10 p.m.

2 stops19h 15m

London Southend

Sun 26/4

5:30 p.m.-5:55 p.m.

2 stops29h 25m

C$ 875

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Wed 6/5

11:45 p.m.-4:40 p.m.

1 stop11h 55m

London Southend

Wed 13/5

4:50 p.m.-5:10 p.m.

1 stop29h 20m

C$ 913

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Fri 5/6

3:40 p.m.-10:45 a.m.

2 stops14h 05m

London Southend

Sun 14/6

7:25 a.m.-2:25 p.m.

1 stop12h 00m

C$ 922
Quickest round-trip

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Wed 27/5

9:35 p.m.-1:00 p.m.

1 stop10h 25m

London Southend

Sun 7/6

7:25 a.m.-3:45 p.m.

1 stop13h 20m

C$ 924

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Sun 7/6

6:50 p.m.-10:30 a.m.

1 stop10h 40m

London Southend

Sun 21/6

7:25 a.m.-7:20 p.m.

2 stops16h 55m

C$ 925

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Wed 3/6

11:45 p.m.-4:40 p.m.

1 stop11h 55m

London Southend

Sun 7/6

4:55 p.m.-5:10 p.m.

1 stop29h 15m

C$ 928

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Wed 3/6

11:45 p.m.-4:40 p.m.

1 stop11h 55m

London Southend

Thu 11/6

1:55 p.m.-5:10 p.m.

1 stop32h 15m

C$ 929

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Sun 14/6

6:50 p.m.-10:30 a.m.

1 stop10h 40m

London Southend

Sun 21/6

7:25 a.m.-7:20 p.m.

2 stops16h 55m

C$ 931

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 Region of Ontario to London Southend 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

How long does it take to fly to London Southend Airport?

The average flight duration from Region of Ontario to London Southend Airport depends on which airport you fly into and out of. Flying from Ottawa to London Heathrow Airport is 6h 35m on average, while flying from Toronto to London Heathrow Airport is 7h 50m on average. London Heathrow Airport is the most popular airport in London Southend Airport.

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

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

Fastest flight time

10h 35m

Direct flights

None
The fastest flight from Region of Ontario to London Southend Airport takes 10h 35m
There are no direct flights from Region of Ontario to London Southend Airport. There are no popular flight routes from Region of Ontario to London Southend Airport.
Search flight deals

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

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

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

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

    The travel and health documents you'll need for your trip to London Southend 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 Southend 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
Hounslow
Wembley
Ilford
Slough
Gatwick
Wokingham
Crawley
Feltham
Hayes
Newport
Waterlooville
Chelmsford
Basingstoke
Milton Keynes
Dover
Guildford
Worthing
Ipswich
Maidstone
Woking

Why use momondo?

Why should I use momondo to find a flight deal from Ontario 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 Ontario to London for you.

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?

Once all potential Ontario to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario 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 Ontario and alert you when they change.

An easier way to manage your London Southend 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.
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