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Cheap flights from London Southend Airport to Ontario from C$ 475

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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — YYZ
8 Mar — 15 Mar1
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 6 February 2026.

Wed 4/37:10 a.m.
SEN
-
YUL
1 stop13h 35m
Multiple Airlines
Sun 22/36:00 p.m.
YUL
-
SEN
1 stop12h 30m
Multiple Airlines
Deal found 3/2C$ 710
Thu 12/36:05 p.m.
SEN
-
YUL
1 stop23h 30m
Multiple Airlines
Thu 19/39:10 p.m.
YUL
-
SEN
1 stop11h 40m
Multiple Airlines
Deal found 4/2C$ 712
Thu 12/36:05 p.m.
SEN
-
YUL
1 stop23h 30m
Multiple Airlines
Thu 26/39:10 p.m.
YUL
-
SEN
1 stop11h 40m
Multiple Airlines
Deal found 5/2C$ 713
Wed 11/37:10 a.m.
SEN
-
YUL
1 stop12h 35m
Multiple Airlines
Thu 19/39:25 p.m.
YUL
-
SEN
1 stop11h 25m
Multiple Airlines
Deal found 4/2C$ 727
Wed 11/37:10 a.m.
SEN
-
YUL
1 stop12h 35m
Multiple Airlines
Wed 18/39:25 p.m.
YUL
-
SEN
1 stop19h 35m
Multiple Airlines
Deal found 4/2C$ 748
Wed 25/27:10 a.m.
SEN
-
YUL
1 stop13h 35m
Multiple Airlines
Wed 11/35:55 p.m.
YUL
-
SEN
2 stops23h 05m
Multiple Airlines
Deal found 6/2C$ 776
Tue 13/106:30 a.m.
SEN
-
YUL
1 stop15h 50m
Multiple Airlines
Fri 23/1011:45 p.m.
YUL
-
SEN
1 stop17h 00m
Multiple Airlines
Deal found 5/2C$ 781
Mon 23/37:15 a.m.
SEN
-
YUL
1 stop32h 10m
Multiple Airlines
Thu 9/46:20 p.m.
YUL
-
SEN
1 stop11h 25m
Multiple Airlines
Deal found 6/2C$ 791
Wed 18/37:10 a.m.
SEN
-
YUL
1 stop12h 35m
Multiple Airlines
Sat 28/36:00 p.m.
YUL
-
SEN
1 stop11h 25m
Multiple Airlines
Deal found 3/2C$ 796
Wed 4/37:10 a.m.
SEN
-
YUL
1 stop13h 35m
Multiple Airlines
Wed 11/39:25 p.m.
YUL
-
SEN
1 stop19h 35m
Multiple Airlines
Deal found 4/2C$ 813
Mon 2/37:15 a.m.
SEN
-
YUL
1 stop13h 30m
Multiple Airlines
Sun 8/36:00 p.m.
YUL
-
SEN
1 stop12h 30m
Multiple Airlines
Deal found 3/2C$ 815
Wed 20/54:50 p.m.
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Wed 27/511:45 p.m.
YYZ
-
SEN
1 stop11h 55m
Multiple Airlines
Deal found 3/2C$ 825

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 6 February 2026.

Round-trip from

C$ 710

One-way from

C$ 475

Popular in

December

Cheapest in

February

Average price

C$ 657
4/3-22/3
  • 4/3-22/3
  • 2 total stops
  • 26h 05m total
  • London to Ontario
Search Deals
4/6
  • 4/6
  • 1 total stop
  • 32h 15m total
  • London to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 71 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 6 February 2026.
Use the filters below to find and compare flights from London Southend Airport to Ontario that are best for you.

Fly from

Southend

Fly to

Ontario

Route

Depart

Return

Price

LondonMontreal

SEN - YUL

SENYUL

London Southend

Wed 4/3

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

1 stop13h 35m

Montreal Pierre Elliott Trudeau Intl

Wed 18/3

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

1 stop19h 35m

C$ 710

LondonMontreal

SEN - YUL

SENYUL

London Southend

Thu 12/3

6:05 p.m.-1:35 p.m.

1 stop23h 30m

Montreal Pierre Elliott Trudeau Intl

Thu 26/3

9:10 p.m.-12:50 p.m.

1 stop11h 40m

C$ 713

LondonMontreal

SEN - YUL

SENYUL

London Southend

Thu 12/3

6:05 p.m.-3:45 p.m.

1 stop25h 40m

Montreal Pierre Elliott Trudeau Intl

Wed 18/3

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

1 stop19h 35m

C$ 727

LondonMontreal

SEN - YUL

SENYUL

London Southend

Wed 11/3

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

1 stop12h 35m

Montreal Pierre Elliott Trudeau Intl

Thu 19/3

9:25 p.m.-12:50 p.m.

1 stop11h 25m

C$ 727

LondonMontreal

SEN - YUL

SENYUL

London Southend

Wed 11/3

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

1 stop12h 35m

Montreal Pierre Elliott Trudeau Intl

Wed 18/3

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

1 stop19h 35m

C$ 748

LondonMontreal

SEN - YUL

SENYUL

London Southend

Wed 25/2

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

1 stop13h 35m

Montreal Pierre Elliott Trudeau Intl

Wed 11/3

5:55 p.m.-9:00 p.m.

2 stops23h 05m

C$ 776

LondonMontreal

SEN - YUL

SENYUL

London Southend

Wed 18/3

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

1 stop12h 35m

Montreal Pierre Elliott Trudeau Intl

Sat 28/3

6:00 p.m.-9:25 a.m.

1 stop11h 25m

C$ 796

LondonMontreal

SEN - YUL

SENYUL

London Southend

Wed 4/3

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

1 stop13h 35m

Montreal Pierre Elliott Trudeau Intl

Wed 11/3

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

1 stop19h 35m

C$ 813

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Wed 20/5

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

1 stop29h 20m

Toronto Pearson Intl

Wed 27/5

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

1 stop11h 55m

C$ 825

LondonMontreal

SEN - YUL

SENYUL

London Southend

Wed 18/3

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

1 stop12h 35m

Montreal Pierre Elliott Trudeau Intl

Sun 29/3

6:20 p.m.-10:30 a.m.

1 stop11h 10m

C$ 828

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

Showing 1-10 of 42 results
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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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