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Cheap flights from London Southend Airport to Ontario from C$ 491

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 19/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — YYZ
7 Sep — 14 Sep1
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 8 August 2026.

Thu 3/910:10 a.m. -
1 stop30h 25m
Thu 10/96:50 p.m. -
1 stop10h 55m
Deal found 6/8C$ 737
Thu 3/910:10 a.m. -
1 stop30h 25m
Sat 12/96:50 p.m. -
1 stop10h 35m
Deal found 7/8C$ 749
Fri 13/112:25 p.m. -
1 stop27h 15m
Sat 21/118:10 p.m. -
1 stop17h 35m
Deal found 4/8C$ 759
Thu 27/81:45 p.m. -
1 stop26h 50m
Thu 10/96:50 p.m. -
1 stop10h 55m
Deal found 5/8C$ 797
Mon 31/811:10 a.m. -
1 stop29h 25m
Wed 9/96:50 p.m. -
1 stop13h 10m
Deal found 4/8C$ 800
Wed 16/94:50 p.m. -
1 stop29h 20m
Sun 27/911:45 p.m. -
1 stop14h 50m
Deal found 4/8C$ 812
Wed 16/94:50 p.m. -
1 stop29h 20m
Thu 24/911:45 p.m. -
1 stop14h 50m
Deal found 7/8C$ 825
Sun 6/97:25 a.m. -
1 stop13h 20m
Sun 13/96:20 p.m. -
1 stop11h 10m
Deal found 7/8C$ 830
Wed 30/94:50 p.m. -
1 stop29h 20m
Wed 7/1011:45 p.m. -
1 stop11h 55m
Deal found 4/8C$ 837
Sun 20/94:55 p.m. -
1 stop29h 15m
Sun 27/911:45 p.m. -
1 stop14h 50m
Deal found 6/8C$ 864
Mon 5/1011:10 a.m. -
2 stops33h 50m
Sun 11/104:40 p.m. -
2 stops12h 50m
Deal found 7/8C$ 888
Thu 5/113:40 p.m. -
1 stop27h 25m
Sun 15/118:15 p.m. -
1 stop13h 20m
Deal found 6/8C$ 893

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 8 August 2026.

Round-trip from

C$ 737

One-way from

C$ 491

Popular in

August

Cheapest in

February

Average price

C$ 1,103
3/9-10/9
  • 3/9-10/9
  • 2 total stops
  • 41h 20m total
  • London to Ontario
Search Deals
19/1
  • 19/1
  • 1 total stop
  • 25h 20m total
  • London to Ontario
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 131 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 29 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 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 8 August 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 London Southend - YUL Montreal Pierre Elliott Trudeau Intl

SENYUL

London Southend

Thu 3/9

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

1 stop30h 25m

Montreal Pierre Elliott Trudeau Intl

Sat 12/9

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

1 stop10h 35m

C$ 751

LondonMontreal

SEN London Southend - YUL Montreal Pierre Elliott Trudeau Intl

SENYUL

London Southend

Fri 4/9

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

1 stop29h 15m

Montreal Pierre Elliott Trudeau Intl

Sat 12/9

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

1 stop10h 35m

C$ 895

LondonMontreal

SEN London Southend - YUL Montreal Pierre Elliott Trudeau Intl

SENYUL

London Southend

Mon 7/9

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

1 stop29h 25m

Montreal Pierre Elliott Trudeau Intl

Fri 25/9

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

1 stop17h 00m

C$ 1,025

LondonMontreal

SEN London Southend - YUL Montreal Pierre Elliott Trudeau Intl

SENYUL

London Southend

Mon 7/9

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

1 stop29h 25m

Montreal Pierre Elliott Trudeau Intl

Mon 14/9

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

1 stop27h 10m

C$ 1,025

LondonMontreal

SEN London Southend - YUL Montreal Pierre Elliott Trudeau Intl

SENYUL

London Southend

Mon 14/9

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

1 stop29h 25m

Montreal Pierre Elliott Trudeau Intl

Fri 18/9

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

1 stop17h 00m

C$ 1,033

LondonMontreal

SEN London Southend - YUL Montreal Pierre Elliott Trudeau Intl

SENYUL

London Southend

Tue 15/9

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

1 stop15h 50m

Montreal Pierre Elliott Trudeau Intl

Fri 18/9

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

1 stop17h 00m

C$ 1,061

LondonToronto

SEN London Southend - YYZ Toronto Pearson Intl

SENYYZ

London Southend

Thu 27/8

1:45 p.m.-2:25 p.m.

1 stop29h 40m

Toronto Pearson Intl

Sun 13/9

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

1 stop14h 50m

C$ 1,095

LondonToronto

SEN London Southend - YYZ Toronto Pearson Intl

SENYYZ

London Southend

Thu 17/9

5:15 p.m.-3:15 p.m.

1 stop27h 00m

Toronto Pearson Intl

Thu 24/9

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

1 stop14h 50m

C$ 1,120

LondonMontreal

SEN London Southend - YUL Montreal Pierre Elliott Trudeau Intl

SENYUL

London Southend

Sat 12/9

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

1 stop29h 30m

Montreal Pierre Elliott Trudeau Intl

Fri 18/9

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

1 stop17h 00m

C$ 1,165

LondonMontreal

SEN London Southend - YUL Montreal Pierre Elliott Trudeau Intl

SENYUL

London Southend

Fri 20/11

2:25 p.m.-12:40 p.m.

1 stop27h 15m

Montreal Pierre Elliott Trudeau Intl

Wed 25/11

8:10 p.m.-6:35 p.m.

1 stop17h 25m

C$ 1,167

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/8

Showing 1-10 of 40 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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