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Cheap flights from Ontario to London Southend Airport from C$ 384

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEN
2 Sep — 9 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Southend

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Southend
Explore the most affordable flight options available from Ontario to Southend. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 August 2026.

Thu 10/96:50 p.m.
YUL
-
SEN
1 stop10h 55m
Multiple Airlines
Mon 21/911:10 a.m.
SEN
-
YUL
1 stop29h 25m
Multiple Airlines
Deal found 29/7C$ 793
Mon 5/1011:45 p.m.
YUL
-
SEN
1 stop27h 10m
Multiple Airlines
Tue 13/106:30 a.m.
SEN
-
YUL
1 stop15h 50m
Multiple Airlines
Deal found 29/7C$ 804
Mon 21/96:35 p.m.
YUL
-
SEN
1 stop11h 45m
Multiple Airlines
Wed 7/108:25 a.m.
SEN
-
YUL
2 stops15h 27m
Multiple Airlines
Deal found 1/8C$ 810
Sun 20/96:50 p.m.
YUL
-
SEN
1 stop10h 40m
Multiple Airlines
Mon 28/911:10 a.m.
SEN
-
YUL
1 stop31h 50m
Multiple Airlines
Deal found 29/7C$ 815
Wed 2/96:50 p.m.
YUL
-
SEN
1 stop13h 10m
Multiple Airlines
Wed 9/98:25 a.m.
SEN
-
YUL
1 stop13h 55m
Multiple Airlines
Deal found 31/7C$ 820
Thu 24/96:50 p.m.
YUL
-
SEN
1 stop10h 55m
Multiple Airlines
Mon 5/1011:10 a.m.
SEN
-
YUL
1 stop29h 25m
Multiple Airlines
Deal found 31/7C$ 827
Wed 7/1011:45 p.m.
YYZ
-
SEN
1 stop11h 55m
Multiple Airlines
Wed 14/104:50 p.m.
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Deal found 1/8C$ 829
Mon 14/911:45 p.m.
YUL
-
SEN
1 stop27h 10m
Multiple Airlines
Wed 30/98:25 a.m.
SEN
-
YUL
1 stop13h 55m
Multiple Airlines
Deal found 31/7C$ 834
Thu 24/911:45 p.m.
YYZ
-
SEN
1 stop14h 50m
Multiple Airlines
Sun 4/104:55 p.m.
SEN
-
YYZ
1 stop29h 15m
Multiple Airlines
Deal found 29/7C$ 836
Sun 13/911:45 p.m.
YYZ
-
SEN
1 stop14h 50m
Multiple Airlines
Wed 23/94:50 p.m.
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Deal found 31/7C$ 848
Sun 27/96:50 p.m.
YUL
-
SEN
1 stop10h 40m
Multiple Airlines
Mon 12/1011:10 a.m.
SEN
-
YUL
1 stop29h 25m
Multiple Airlines
Deal found 2/8C$ 852
Wed 2/911:45 p.m.
YYZ
-
SEN
1 stop11h 55m
Multiple Airlines
Wed 16/94:50 p.m.
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Deal found 1/8C$ 852

Find flight deals from Ontario to Southend

Keep the following information in mind while searching for Ontario to Southend flight deals. Data was last updated 3 August 2026.

Round-trip from

C$ 793

One-way from

C$ 384

Popular in

December

Cheapest in

February

Average price

C$ 1,160
10/9-21/9
  • 10/9-21/9
  • 2 total stops
  • 40h 20m total
  • Ontario to London
Search Deals
10/8
  • 10/8
  • 2 total stops
  • 43h 25m total
  • Ontario to London
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Southend 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, Cheapflights users made 629,999 searches. Data last updated 3 August 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

Fri 25/9

11:45 p.m.-9:45 p.m.

1 stop17h 00m

London Southend

Tue 13/10

6:30 a.m.-5:20 p.m.

1 stop15h 50m

C$ 793

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Thu 10/9

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

1 stop10h 55m

London Southend

Mon 21/9

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

1 stop29h 25m

C$ 794

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Thu 24/9

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

1 stop10h 55m

London Southend

Mon 5/10

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

1 stop29h 25m

C$ 827

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Thu 24/9

11:45 p.m.-7:35 p.m.

1 stop14h 50m

London Southend

Sun 4/10

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

1 stop29h 15m

C$ 836

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Wed 7/10

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

1 stop11h 55m

London Southend

Wed 14/10

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

1 stop29h 20m

C$ 842

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Wed 2/9

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

1 stop11h 55m

London Southend

Wed 16/9

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

1 stop29h 20m

C$ 869

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Sun 13/9

11:45 p.m.-7:35 p.m.

1 stop14h 50m

London Southend

Sun 20/9

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

1 stop29h 15m

C$ 870

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Sun 27/9

11:45 p.m.-7:35 p.m.

1 stop14h 50m

London Southend

Mon 12/10

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

1 stop29h 15m

C$ 887

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Mon 21/9

11:45 p.m.-7:55 a.m.

1 stop27h 10m

London Southend

Mon 28/9

11:10 a.m.-2:00 p.m.

1 stop31h 50m

C$ 1,021

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Fri 18/9

11:45 p.m.-9:45 p.m.

1 stop17h 00m

London Southend

Mon 28/9

11:10 a.m.-2:00 p.m.

1 stop31h 50m

C$ 1,023

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/7

Showing 1-10 of 53 resultsSorted by cheapest first
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Best time to book a flight from Ontario to Southend

Have a flexible travel schedule? Discover the best time to fly to Southend from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to London Southend Airport

No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Southend. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the most popular routes from Region of Ontario to London Southend Airport?

    When deciding which route to take from Region of Ontario to London Southend Airport consider Toronto Pearson Intl - London Southend, Montreal Pierre Elliott Trudeau Intl - London Southend or Ottawa - London Southend as they are the most popular.

  • Can I find deals for flights from Ontario to Southend that include hotel bookings?

    Yes. In addition to deals on Ontario to Southend flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Southend?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Southend.

  • Can I find deals for business class flights from Ontario to Southend?

    Yes. Cheapflights offers flight deals from Ontario to Southend by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near London Southend Airport?

Book flights to London Southend Airport if you plan to visit one of these locations
Gatwick
Romford
Twickenham
Ilford
Bromley
Sutton
Luton
Slough
Marlow
Cobham
Hounslow
Watford
High Wycombe

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ontario to Southend

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Heathrow flights
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Fredericton to Gatwick flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Southend?

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Why should you use Cheapflights to find cheap flight tickets from Ontario to Southend?

Cheapflights helps you find that perfect flight to Southend from Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ontario to Southend with no change fees?

Yes! Cheapflights helps users easily find flights from Ontario to Southend with no change fees.

Can Cheapflights notify me if prices for flights from Ontario to Southend become cheaper?

Yes! Start tracking prices for Ontario to Southend flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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