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Cheap flights from Ontario to London Southend Airport from C$ 388

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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEN
28 Feb — 7 Mar1
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 29 January 2026.

Thu 12/28:10 p.m.
YUL
-
SEN
1 stop11h 40m
Multiple Airlines
Thu 19/26:05 p.m.
SEN
-
YUL
1 stop23h 35m
Multiple Airlines
Deal found 28/1C$ 790
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 27/1C$ 819
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 28/1C$ 832
Wed 1/48:25 p.m.
YUL
-
SEN
1 stop11h 35m
Multiple Airlines
Thu 16/410:10 a.m.
SEN
-
YUL
1 stop31h 40m
Multiple Airlines
Deal found 28/1C$ 847
Wed 29/411:45 p.m.
YYZ
-
SEN
1 stop11h 55m
Multiple Airlines
Wed 6/54:50 p.m.
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Deal found 27/1C$ 857
Wed 3/611:45 p.m.
YYZ
-
SEN
1 stop11h 55m
Multiple Airlines
Wed 10/64:50 p.m.
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Deal found 27/1C$ 863
Wed 25/39:10 p.m.
YUL
-
SEN
1 stop19h 50m
Multiple Airlines
Thu 2/410:10 a.m.
SEN
-
YUL
1 stop31h 40m
Multiple Airlines
Deal found 28/1C$ 869
Wed 20/511:45 p.m.
YYZ
-
SEN
1 stop11h 55m
Multiple Airlines
Wed 27/54:50 p.m.
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Deal found 27/1C$ 872
Wed 4/39:25 p.m.
YUL
-
SEN
1 stop18h 35m
Multiple Airlines
Wed 11/37:10 a.m.
SEN
-
YUL
1 stop12h 35m
Multiple Airlines
Deal found 27/1C$ 874
Thu 29/19:25 p.m.
YUL
-
SEN
1 stop10h 25m
Multiple Airlines
Wed 4/27:10 a.m.
SEN
-
YUL
1 stop13h 35m
Multiple Airlines
Deal found 27/1C$ 876
Sat 3/109:05 p.m.
YYZ
-
SEN
1 stop32h 25m
Multiple Airlines
Sun 11/107:25 a.m.
SEN
-
YYZ
1 stop12h 00m
Multiple Airlines
Deal found 27/1C$ 880
Sun 26/411:45 p.m.
YUL
-
SEN
1 stop15h 05m
Multiple Airlines
Tue 12/56:30 a.m.
SEN
-
YUL
1 stop15h 50m
Multiple Airlines
Deal found 27/1C$ 881

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 29 January 2026.

Round-trip from

C$ 790

One-way from

C$ 388

Popular in

December

Cheapest in

February

Average price

C$ 743
12/2-19/2
  • 12/2-19/2
  • 2 total stops
  • 35h 15m total
  • Ontario to London
Search Deals
12/2
  • 12/2
  • 1 total stop
  • 11h 40m total
  • Ontario to London
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 57 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 29 January 2026.
Use the filters below to find and compare flights from Ontario to London Southend Airport that are best for you.

Fly from

Ontario

Fly to

Southend

Route

Depart

Return

Price

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Thu 12/2

8:10 p.m.-12:50 p.m.

1 stop11h 40m

London Southend

Thu 19/2

6:05 p.m.-12:40 p.m.

1 stop23h 35m

C$ 796

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$ 819

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Wed 15/4

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

1 stop11h 55m

London Southend

Wed 29/4

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

1 stop29h 20m

C$ 832

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Wed 25/3

9:10 p.m.-9:00 p.m.

1 stop19h 50m

London Southend

Thu 2/4

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

1 stop31h 40m

C$ 869

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Wed 20/5

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

1 stop11h 55m

London Southend

Wed 27/5

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

1 stop29h 20m

C$ 872

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Wed 4/3

9:25 p.m.-9:00 p.m.

1 stop18h 35m

London Southend

Wed 11/3

7:10 a.m.-3:45 p.m.

1 stop12h 35m

C$ 874

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Sun 24/5

6:50 p.m.-10:35 a.m.

1 stop10h 45m

London Southend

Thu 4/6

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

1 stop32h 50m

C$ 881

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Sun 26/4

11:45 p.m.-7:50 p.m.

1 stop15h 05m

London Southend

Tue 12/5

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

1 stop15h 50m

C$ 881

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Sun 7/6

6:50 p.m.-10:35 a.m.

1 stop10h 45m

London Southend

Fri 19/6

11:20 a.m.-11:35 a.m.

1 stop29h 15m

C$ 885

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Thu 11/6

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

1 stop14h 50m

London Southend

Wed 17/6

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

1 stop29h 20m

C$ 885

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/1

Showing 1-10 of 50 results
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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
Sutton
Twickenham
Gatwick
Slough
Marlow
Cobham
Milton Keynes
Romford
Bedford
Watford
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.
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Fly with Cheapflights

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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?

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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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