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Cheap flights from London Southend Airport to Ontario from C$ 472

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 21/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — YYZ
29 May — 5 Jun1
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 29 April 2026.

Mon 31/811:10 a.m.
SEN
-
YUL
1 stop29h 25m
Multiple Airlines
Thu 10/96:50 p.m.
YUL
-
SEN
1 stop10h 55m
Multiple Airlines
Deal found 26/4C$ 792
Thu 25/61:45 p.m.
SEN
-
YUL
1 stop26h 50m
Multiple Airlines
Thu 2/76:50 p.m.
YUL
-
SEN
1 stop10h 55m
Multiple Airlines
Deal found 25/4C$ 794
Fri 26/611:20 a.m.
SEN
-
YUL
1 stop29h 15m
Multiple Airlines
Sun 5/76:50 p.m.
YUL
-
SEN
1 stop10h 40m
Multiple Airlines
Deal found 28/4C$ 817
Sat 27/67:55 a.m.
SEN
-
YUL
2 stops17h 35m
Multiple Airlines
Sun 5/76:50 p.m.
YUL
-
SEN
1 stop10h 40m
Multiple Airlines
Deal found 28/4C$ 821
Sat 27/67:55 a.m.
SEN
-
YUL
1 stop12h 50m
Multiple Airlines
Tue 7/76:20 p.m.
YUL
-
SEN
1 stop12h 25m
Multiple Airlines
Deal found 28/4C$ 841
Wed 26/812:15 p.m.
SEN
-
YUL
1 stop28h 20m
Multiple Airlines
Thu 10/96:50 p.m.
YUL
-
SEN
1 stop10h 55m
Multiple Airlines
Deal found 27/4C$ 843
Fri 29/511:20 a.m.
SEN
-
YUL
1 stop29h 15m
Multiple Airlines
Wed 10/69:30 p.m.
YUL
-
SEN
1 stop10h 30m
Multiple Airlines
Deal found 26/4C$ 847
Mon 1/611:10 a.m.
SEN
-
YUL
1 stop29h 25m
Multiple Airlines
Sun 7/66:50 p.m.
YUL
-
SEN
1 stop10h 40m
Multiple Airlines
Deal found 28/4C$ 850
Wed 26/812:15 p.m.
SEN
-
YUL
1 stop28h 20m
Multiple Airlines
Wed 9/96:50 p.m.
YUL
-
SEN
1 stop13h 10m
Multiple Airlines
Deal found 27/4C$ 866
Fri 29/511:20 a.m.
SEN
-
YUL
1 stop29h 15m
Multiple Airlines
Sat 13/66:50 p.m.
YUL
-
SEN
1 stop10h 35m
Multiple Airlines
Deal found 27/4C$ 876
Sat 27/67:55 a.m.
SEN
-
YUL
1 stop12h 50m
Multiple Airlines
Wed 1/79:35 p.m.
YUL
-
SEN
1 stop14h 05m
Multiple Airlines
Deal found 27/4C$ 884
Thu 20/81:45 p.m.
SEN
-
YUL
1 stop26h 50m
Multiple Airlines
Sat 5/96:50 p.m.
YUL
-
SEN
1 stop10h 35m
Multiple Airlines
Deal found 29/4C$ 887

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 29 April 2026.

Round-trip from

C$ 792

One-way from

C$ 472

Popular in

December

Cheapest in

February

Average price

C$ 846
31/8-10/9
  • 31/8-10/9
  • 2 total stops
  • 40h 20m total
  • London to Ontario
Search Deals
21/6
  • 21/6
  • 3 total stops
  • 33h 00m total
  • London to Ontario
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 29 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 April 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 29 April 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 25/6

1:45 p.m.-11:35 a.m.

1 stop26h 50m

Montreal Pierre Elliott Trudeau Intl

Thu 2/7

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

1 stop10h 55m

C$ 794

LondonMontreal

SEN - YUL

SENYUL

London Southend

Thu 20/8

1:45 p.m.-11:35 a.m.

1 stop26h 50m

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

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

1 stop10h 35m

C$ 887
Quickest round-trip

LondonMontreal

SEN - YUL

SENYUL

London Southend

Wed 10/6

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

1 stop13h 55m

Montreal Pierre Elliott Trudeau Intl

Wed 17/6

11:45 p.m.-9:50 p.m.

1 stop17h 05m

C$ 984

LondonMontreal

SEN - YUL

SENYUL

London Southend

Tue 9/6

7:00 a.m.-11:25 a.m.

1 stop33h 25m

Montreal Pierre Elliott Trudeau Intl

Tue 16/6

6:50 p.m.-10:20 p.m.

1 stop22h 30m

C$ 1,045

LondonMontreal

SEN - YUL

SENYUL

London Southend

Wed 27/5

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

1 stop13h 55m

Montreal Pierre Elliott Trudeau Intl

Wed 3/6

11:45 p.m.-9:50 p.m.

1 stop17h 05m

C$ 1,064

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Thu 11/6

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

1 stop33h 15m

Toronto Pearson Intl

Fri 19/6

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

1 stop32h 20m

C$ 1,104

LondonMontreal

SEN - YUL

SENYUL

London Southend

Mon 8/6

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

1 stop31h 50m

Montreal Pierre Elliott Trudeau Intl

Wed 30/9

6:20 p.m.-10:00 p.m.

1 stop22h 40m

C$ 1,138

LondonMontreal

SEN - YUL

SENYUL

London Southend

Thu 28/5

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

1 stop30h 25m

Montreal Pierre Elliott Trudeau Intl

Thu 4/6

6:50 p.m.-8:00 a.m.

1 stop32h 10m

C$ 1,145

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Thu 3/9

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

1 stop32h 15m

Toronto Pearson Intl

Thu 10/9

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

1 stop14h 50m

C$ 1,147

LondonMontreal

SEN - YUL

SENYUL

London Southend

Mon 8/6

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

1 stop31h 50m

Montreal Pierre Elliott Trudeau Intl

Sun 27/9

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

1 stop10h 40m

C$ 1,158

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/4

Showing 1-10 of 47 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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Can Cheapflights find flights from Southend to Ontario with no change fees?

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.

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

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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