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Cheap flights from London Southend Airport to Ontario from C$ 506

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 18/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — YYZ
17 Jan — 24 Jan1
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 18 December 2025.

Wed 24/127:10 a.m.SEN - YUL
1 stop32h 35mMultiple Airlines
Wed 31/126:20 p.m.YUL - SEN
1 stop21h 40mMultiple Airlines
Deal found 16/12C$ 1,131
Wed 31/127:10 a.m.SEN - YUL
1 stop13h 10mMultiple Airlines
Sat 31/17:05 p.m.YUL - SEN
1 stop17h 00mMultiple Airlines
Deal found 17/12C$ 1,323
Sat 27/123:00 p.m.SEN - YUL
2 stops26h 10mMultiple Airlines
Thu 8/18:10 p.m.YUL - SEN
1 stop11h 40mMultiple Airlines
Deal found 16/12C$ 1,339
Wed 24/127:10 a.m.SEN - YUL
1 stop32h 35mMultiple Airlines
Thu 1/18:10 p.m.YUL - SEN
1 stop11h 40mMultiple Airlines
Deal found 18/12C$ 1,509
Mon 22/125:30 p.m.SEN - YUL
2 stops31h 10mMultiple Airlines
Sun 28/126:20 p.m.YUL - SEN
1 stop11h 10mMultiple Airlines
Deal found 17/12C$ 1,675
Tue 23/127:00 a.m.SEN - YYZ
3 stops41h 10mMultiple Airlines
Sun 28/129:10 a.m.YYZ - SEN
2 stops24h 40mMultiple Airlines
Deal found 18/12C$ 1,689
Fri 19/1210:00 a.m.SEN - YUL
1 stop31h 40mMultiple Airlines
Sun 28/126:20 p.m.YUL - SEN
1 stop11h 10mMultiple Airlines
Deal found 16/12C$ 1,704
Sun 21/126:05 p.m.SEN - YUL
1 stop21h 40mMultiple Airlines
Sun 4/16:20 p.m.YUL - SEN
1 stop11h 10mMultiple Airlines
Deal found 16/12C$ 1,947
Wed 24/127:10 a.m.SEN - YYZ
1 stop12h 40mMultiple Airlines
Thu 1/18:55 p.m.YYZ - SEN
1 stop10h 55mMultiple Airlines
Deal found 17/12C$ 1,952
Wed 24/127:10 a.m.SEN - YYZ
1 stop12h 40mMultiple Airlines
Sat 3/18:55 p.m.YYZ - SEN
1 stop18h 55mMultiple Airlines
Deal found 17/12C$ 1,973
Fri 26/1210:00 a.m.SEN - YUL
1 stop31h 40mMultiple Airlines
Sat 3/17:10 p.m.YUL - SEN
1 stop20h 40mMultiple Airlines
Deal found 17/12C$ 2,013
Fri 26/126:40 a.m.SEN - YYZ
1 stop12h 45mMultiple Airlines
Sun 4/18:25 p.m.YYZ - SEN
1 stop13h 25mMultiple Airlines
Deal found 16/12C$ 2,094

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 18 December 2025.

Round-trip from

C$ 807

One-way from

C$ 506

Popular in

December

Cheapest in

February

Average price

C$ 1,026
16/3-22/3
  • 16/3-22/3
  • 3 total stops
  • 46h 15m total
  • London to Ontario
Search Deals
18/5
  • 18/5
  • 2 total stops
  • 22h 55m total
  • London to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 69 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 18 December 2025.
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

Mon 16/3

7:15 a.m.-1:00 p.m.

2 stops33h 45m

Montreal Pierre Elliott Trudeau Intl

Sun 22/3

6:00 p.m.-10:30 a.m.

1 stop12h 30m

C$ 807

LondonMontreal

SEN - YUL

SENYUL

London Southend

Sun 29/3

7:25 a.m.-3:05 p.m.

1 stop12h 40m

Montreal Pierre Elliott Trudeau Intl

Sun 12/4

6:20 p.m.-10:35 a.m.

1 stop11h 15m

C$ 823

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Wed 29/4

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

1 stop29h 20m

Toronto Pearson Intl

Sun 10/5

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

1 stop14h 50m

C$ 850

LondonMontreal

SEN - YUL

SENYUL

London Southend

Tue 17/3

8:20 p.m.-8:40 p.m.

2 stops28h 20m

Montreal Pierre Elliott Trudeau Intl

Thu 19/3

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

1 stop11h 40m

C$ 937

LondonMontreal

SEN - YUL

SENYUL

London Southend

Tue 13/1

3:55 p.m.-12:10 p.m.

1 stop25h 15m

Montreal Pierre Elliott Trudeau Intl

Thu 15/1

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

1 stop11h 40m

C$ 952

LondonMontreal

SEN - YUL

SENYUL

London Southend

Fri 23/1

10:00 a.m.-7:40 p.m.

1 stop14h 40m

Montreal Pierre Elliott Trudeau Intl

Thu 29/1

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

1 stop11h 40m

C$ 953

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Fri 22/5

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

1 stop29h 15m

Toronto Pearson Intl

Sun 31/5

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

1 stop14h 50m

C$ 967

LondonMontreal

SEN - YUL

SENYUL

London Southend

Fri 13/3

10:00 a.m.-1:10 p.m.

1 stop31h 10m

Montreal Pierre Elliott Trudeau Intl

Wed 18/3

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

1 stop19h 50m

C$ 981

LondonMontreal

SEN - YUL

SENYUL

London Southend

Sat 31/1

6:40 a.m.-12:10 p.m.

1 stop34h 30m

Montreal Pierre Elliott Trudeau Intl

Sat 7/2

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

1 stop19h 40m

C$ 984

LondonMontreal

SEN - YUL

SENYUL

London Southend

Sun 1/2

2:20 p.m.-12:40 p.m.

1 stop27h 20m

Montreal Pierre Elliott Trudeau Intl

Sun 8/2

9:40 p.m.-1:50 p.m.

2 stops35h 10m

C$ 991

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/12

Showing 1-10 of 40 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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Alternative routes for Southend to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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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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