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Cheap flights from Ontario to London Southend Airport from C$ 405

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 19/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEN
20 Apr — 27 Apr1
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 21 March 2026.

Wed 15/48:25 p.m.
YUL
-
SEN
1 stop11h 35m
Multiple Airlines
Thu 30/410:10 a.m.
SEN
-
YUL
1 stop31h 40m
Multiple Airlines
Deal found 16/3C$ 925
Sat 23/59:05 p.m.
YYZ
-
SEN
1 stop32h 25m
Multiple Airlines
Mon 1/611:10 a.m.
SEN
-
YYZ
1 stop32h 15m
Multiple Airlines
Deal found 20/3C$ 930
Wed 15/411:45 p.m.
YYZ
-
SEN
1 stop11h 55m
Multiple Airlines
Wed 22/44:50 p.m.
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Deal found 18/3C$ 932
Sat 23/53:40 p.m.
YYZ
-
SEN
2 stops13h 45m
Multiple Airlines
Sun 31/57:25 a.m.
SEN
-
YYZ
1 stop12h 00m
Multiple Airlines
Deal found 18/3C$ 941
Mon 4/511:45 p.m.
YUL
-
SEN
1 stop27h 10m
Multiple Airlines
Tue 12/56:30 a.m.
SEN
-
YUL
1 stop15h 50m
Multiple Airlines
Deal found 18/3C$ 943
Mon 15/611:45 p.m.
YUL
-
SEN
1 stop27h 10m
Multiple Airlines
Tue 23/66:30 a.m.
SEN
-
YUL
1 stop15h 50m
Multiple Airlines
Deal found 17/3C$ 944
Wed 27/59:05 p.m.
YYZ
-
SEN
1 stop10h 55m
Multiple Airlines
Thu 11/610:10 a.m.
SEN
-
YYZ
1 stop33h 15m
Multiple Airlines
Deal found 18/3C$ 944
Sun 17/511:45 p.m.
YYZ
-
SEN
1 stop14h 50m
Multiple Airlines
Wed 27/54:50 p.m.
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Deal found 16/3C$ 945
Mon 4/511:45 p.m.
YUL
-
SEN
1 stop27h 10m
Multiple Airlines
Mon 11/58:05 p.m.
SEN
-
YUL
1 stop26h 15m
Multiple Airlines
Deal found 19/3C$ 947
Wed 22/411:45 p.m.
YYZ
-
SEN
1 stop11h 55m
Multiple Airlines
Wed 6/54:50 p.m.
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Deal found 19/3C$ 947
Wed 15/411:45 p.m.
YYZ
-
SEN
1 stop11h 55m
Multiple Airlines
Wed 29/44:50 p.m.
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Deal found 17/3C$ 948
Wed 22/411:45 p.m.
YYZ
-
SEN
1 stop11h 55m
Multiple Airlines
Mon 11/54:55 p.m.
SEN
-
YYZ
1 stop29h 15m
Multiple Airlines
Deal found 18/3C$ 950

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 21 March 2026.

Round-trip from

C$ 925

One-way from

C$ 405

Popular in

December

Cheapest in

May

Average price

C$ 841
15/4-30/4
  • 15/4-30/4
  • 2 total stops
  • 43h 15m total
  • Ontario to London
Search Deals
19/5
  • 19/5
  • 3 total stops
  • 37h 45m total
  • Ontario to London
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 21 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

Wed 15/4

8:25 p.m.-1:00 p.m.

1 stop11h 35m

London Southend

Thu 30/4

10:10 a.m.-12:50 p.m.

1 stop31h 40m

C$ 925

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Sat 23/5

9:05 p.m.-10:30 a.m.

1 stop32h 25m

London Southend

Mon 1/6

11:10 a.m.-2:25 p.m.

1 stop32h 15m

C$ 930

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Mon 4/5

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

1 stop27h 10m

London Southend

Mon 11/5

8:05 p.m.-5:20 p.m.

1 stop26h 15m

C$ 947

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Wed 22/4

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$ 948

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Tue 21/4

7:50 p.m.-4:10 p.m.

1 stop15h 20m

London Southend

Mon 11/5

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

1 stop29h 15m

C$ 998

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Wed 22/4

7:05 p.m.-10:00 p.m.

1 stop21h 55m

London Southend

Wed 6/5

8:25 a.m.-5:20 p.m.

1 stop13h 55m

C$ 1,172

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

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

1 stop14h 50m

London Southend

Sat 16/5

4:50 p.m.-5:20 p.m.

1 stop29h 30m

C$ 1,186

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Wed 15/4

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

1 stop11h 55m

London Southend

Wed 22/4

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

1 stop29h 20m

C$ 1,187

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Wed 29/4

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

1 stop11h 55m

London Southend

Sun 10/5

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

1 stop29h 15m

C$ 1,208

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Wed 6/5

9:30 p.m.-1:00 p.m.

1 stop10h 30m

London Southend

Mon 11/5

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

1 stop31h 50m

C$ 1,238

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/3

Showing 1-10 of 56 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
Twickenham
Sutton
Gatwick
Slough
Marlow
Cobham
Romford
Watford
Bedford
Luton
High Wycombe
Hounslow

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
Pearson Intl to Gatwick flights
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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?

Cheapflights helps you search for flights from Ontario to Southend via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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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