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Cheap flights from London Southend Airport to Ontario from C$ 510

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 23/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — YYZ
23 Jul — 30 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southend to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Southend to Ontario
Explore the most affordable flight options available from Southend to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 June 2026.

Wed 23/94:50 p.m.
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Wed 7/1011:45 p.m.
YYZ
-
SEN
1 stop11h 55m
Multiple Airlines
Deal found 18/6C$ 801
Wed 16/94:50 p.m.
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Wed 7/1011:45 p.m.
YYZ
-
SEN
1 stop11h 55m
Multiple Airlines
Deal found 18/6C$ 822
Wed 14/104:50 p.m.
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Wed 21/1011:45 p.m.
YYZ
-
SEN
1 stop11h 55m
Multiple Airlines
Deal found 18/6C$ 842
Fri 25/94:55 p.m.
SEN
-
YYZ
1 stop29h 15m
Multiple Airlines
Sun 4/1011:45 p.m.
YYZ
-
SEN
1 stop14h 50m
Multiple Airlines
Deal found 18/6C$ 847
Thu 27/81:45 p.m.
SEN
-
YUL
1 stop26h 50m
Multiple Airlines
Thu 10/96:50 p.m.
YUL
-
SEN
1 stop10h 55m
Multiple Airlines
Deal found 18/6C$ 852
Thu 10/91:55 p.m.
SEN
-
YYZ
1 stop32h 15m
Multiple Airlines
Sun 20/911:45 p.m.
YYZ
-
SEN
1 stop14h 50m
Multiple Airlines
Deal found 21/6C$ 860
Sun 6/94:55 p.m.
SEN
-
YYZ
1 stop29h 15m
Multiple Airlines
Sun 13/911:45 p.m.
YYZ
-
SEN
1 stop14h 50m
Multiple Airlines
Deal found 19/6C$ 867
Sun 22/113:55 p.m.
SEN
-
YUL
1 stop25h 45m
Multiple Airlines
Sun 29/118:10 p.m.
YUL
-
SEN
1 stop13h 25m
Multiple Airlines
Deal found 19/6C$ 897
Fri 11/911:20 a.m.
SEN
-
YUL
1 stop29h 15m
Multiple Airlines
Sun 20/96:50 p.m.
YUL
-
SEN
1 stop10h 40m
Multiple Airlines
Deal found 21/6C$ 911
Thu 8/1010:10 a.m.
SEN
-
YUL
1 stop30h 25m
Multiple Airlines
Sat 17/106:50 p.m.
YUL
-
SEN
1 stop10h 35m
Multiple Airlines
Deal found 21/6C$ 917
Wed 1/712:15 p.m.
SEN
-
YUL
2 stops31h 45m
Multiple Airlines
Wed 8/76:20 p.m.
YUL
-
SEN
1 stop17h 20m
Multiple Airlines
Deal found 21/6C$ 925
Tue 8/96:30 a.m.
SEN
-
YUL
1 stop15h 50m
Multiple Airlines
Mon 14/911:45 p.m.
YUL
-
SEN
1 stop27h 10m
Multiple Airlines
Deal found 21/6C$ 942

Find flight deals from Southend to Ontario

Keep the following information in mind while searching for Southend to Ontario flight deals. Data was last updated 23 June 2026.

Round-trip from

C$ 801

One-way from

C$ 510

Popular in

August

Cheapest in

February

Average price

C$ 888
23/9-7/10
  • 23/9-7/10
  • 2 total stops
  • 41h 15m total
  • London to Ontario
Search Deals
23/9
  • 23/9
  • 3 total stops
  • 28h 15m total
  • London to Ontario
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 116 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Southend to Ontario 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 23 June 2026.
Use the filters below to find and compare flights from London Southend Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonMontreal

SEN - YUL

SENYUL

London Southend

Thu 8/10

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

1 stop30h 25m

Montreal Pierre Elliott Trudeau Intl

Sat 17/10

6:50 p.m.-10:25 a.m.

1 stop10h 35m

C$ 917

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Wed 26/8

12:15 p.m.-2:25 p.m.

1 stop31h 10m

Toronto Pearson Intl

Sun 6/9

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

1 stop14h 50m

C$ 1,078

LondonMontreal

SEN - YUL

SENYUL

London Southend

Thu 27/8

1:45 p.m.-2:00 p.m.

1 stop29h 15m

Montreal Pierre Elliott Trudeau Intl

Mon 31/8

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

1 stop27h 10m

C$ 1,138

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Wed 2/9

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

1 stop29h 20m

Toronto Pearson Intl

Fri 11/9

9:05 p.m.-10:25 a.m.

1 stop32h 20m

C$ 1,148

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Fri 28/8

11:20 a.m.-2:25 p.m.

1 stop32h 05m

Toronto Pearson Intl

Fri 11/9

9:05 p.m.-10:25 a.m.

1 stop32h 20m

C$ 1,166

LondonMontreal

SEN - YUL

SENYUL

London Southend

Wed 26/8

12:15 p.m.-11:35 a.m.

1 stop28h 20m

Montreal Pierre Elliott Trudeau Intl

Fri 4/9

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

1 stop17h 00m

C$ 1,204

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Mon 10/8

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

1 stop30h 00m

Toronto Pearson Intl

Fri 21/8

11:45 p.m.-10:15 a.m.

1 stop29h 30m

C$ 1,209

LondonMontreal

SEN - YUL

SENYUL

London Southend

Tue 8/9

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

1 stop15h 50m

Montreal Pierre Elliott Trudeau Intl

Fri 11/9

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

1 stop17h 00m

C$ 1,211

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Fri 4/9

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

1 stop29h 15m

Toronto Pearson Intl

Sun 13/9

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

1 stop14h 50m

C$ 1,230
Quickest round-trip

LondonMontreal

SEN - YUL

SENYUL

London Southend

Wed 9/9

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

1 stop13h 55m

Montreal Pierre Elliott Trudeau Intl

Thu 24/9

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

1 stop10h 55m

C$ 1,231

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/6

Showing 1-10 of 44 resultsSorted by cheapest first
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Best time to book a flight from Southend to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Southend 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 London Southend Airport to Ontario
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 Southend to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

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

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

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Need flexible booking options for your flight to Ontario from Southend? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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Yes, Cheapflights offers price alerts on Southend to Ontario flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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