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Cheap flights from Ontario to London Southend Airport from C$ 431

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 16/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEN
17 Jan — 24 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Southend

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Southend
Explore the most affordable flight options available from Ontario to Southend. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 December 2025.

Thu 25/126:15 p.m.YUL - SEN
1 stop13h 35mMultiple Airlines
Mon 29/127:15 a.m.SEN - YUL
1 stop13h 30mMultiple Airlines
Deal found 17/12C$ 1,820
Thu 25/128:10 p.m.YUL - SEN
1 stop11h 40mMultiple Airlines
Sun 28/126:05 p.m.SEN - YUL
1 stop21h 40mMultiple Airlines
Deal found 16/12C$ 1,892
Sun 28/126:20 p.m.YUL - SEN
1 stop11h 10mMultiple Airlines
Wed 31/127:10 a.m.SEN - YUL
1 stop17h 30mMultiple Airlines
Deal found 16/12C$ 1,901
Sat 27/128:25 p.m.YYZ - SEN
1 stop18h 45mMultiple Airlines
Fri 9/16:40 a.m.SEN - YYZ
1 stop12h 45mMultiple Airlines
Deal found 17/12C$ 1,945
Wed 31/129:40 p.m.YUL - SEN
1 stop18h 20mMultiple Airlines
Fri 2/110:00 a.m.SEN - YUL
1 stop14h 40mMultiple Airlines
Deal found 17/12C$ 1,989
Sat 27/128:10 p.m.YUL - SEN
1 stop19h 40mMultiple Airlines
Sun 4/16:05 p.m.SEN - YUL
1 stop21h 40mMultiple Airlines
Deal found 15/12C$ 2,051
Sat 20/128:10 p.m.YUL - SEN
1 stop19h 40mMultiple Airlines
Sat 27/126:40 a.m.SEN - YUL
1 stop34h 30mMultiple Airlines
Deal found 16/12C$ 2,273
Sat 27/124:45 p.m.YUL - SEN
2 stops14h 30mMultiple Airlines
Thu 1/16:50 a.m.SEN - YUL
1 stop14h 20mMultiple Airlines
Deal found 17/12C$ 2,283
Thu 25/128:10 p.m.YUL - SEN
1 stop11h 40mMultiple Airlines
Thu 1/16:05 p.m.SEN - YUL
1 stop23h 35mMultiple Airlines
Deal found 16/12C$ 2,294
Sat 20/128:25 p.m.YYZ - SEN
1 stop18h 45mMultiple Airlines
Sat 27/127:15 a.m.SEN - YYZ
1 stop12h 10mMultiple Airlines
Deal found 16/12C$ 2,432
Tue 23/126:15 p.m.YUL - SEN
1 stop10h 45mMultiple Airlines
Wed 31/127:10 a.m.SEN - YUL
1 stop13h 35mMultiple Airlines
Deal found 17/12C$ 2,461
Tue 23/128:15 p.m.YUL - SEN
1 stop13h 15mMultiple Airlines
Sun 28/127:10 a.m.SEN - YUL
1 stop13h 25mMultiple Airlines
Deal found 15/12C$ 2,524

Find flight deals from Ontario to Southend

Keep the following information in mind while searching for Ontario to Southend flight deals. Data was last updated 18 December 2025.

Round-trip from

C$ 862

One-way from

C$ 431

Popular in

December

Cheapest in

February

Average price

C$ 1,164
4/5-12/5
  • 4/5-12/5
  • 2 total stops
  • 43h 10m total
  • Ontario to London
Search Deals
16/1
  • 16/1
  • 2 total stops
  • 33h 35m total
  • Ontario to London
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 79 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 41 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 Ontario to Southend 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 Ontario to London Southend Airport that are best for you.

Fly from

Ontario

Fly to

Southend

Route

Depart

Return

Price

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Mon 4/5

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

1 stop27h 10m

London Southend

Tue 12/5

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

1 stop16h 00m

C$ 862

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Sun 19/4

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

1 stop14h 50m

London Southend

Wed 29/4

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

1 stop29h 20m

C$ 864

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Wed 22/4

8:25 p.m.-12:45 p.m.

1 stop11h 20m

London Southend

Thu 30/4

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

1 stop32h 00m

C$ 882

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Wed 13/5

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

1 stop11h 55m

London Southend

Wed 27/5

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

1 stop29h 20m

C$ 886

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Sun 10/5

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

1 stop14h 50m

London Southend

Wed 20/5

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

1 stop29h 20m

C$ 894

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Wed 18/3

12:00 p.m.-12:00 p.m.

2 stops20h 00m

London Southend

Tue 31/3

6:20 a.m.-4:00 p.m.

1 stop14h 40m

C$ 898

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Thu 19/2

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

1 stop10h 25m

London Southend

Thu 26/2

6:05 p.m.-2:55 p.m.

2 stops25h 50m

C$ 904

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Sun 3/5

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

1 stop14h 50m

London Southend

Wed 13/5

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

1 stop29h 20m

C$ 913

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Wed 18/3

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

1 stop19h 50m

London Southend

Sun 22/3

2:20 p.m.-1:35 p.m.

1 stop27h 15m

C$ 919

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Fri 1/5

9:30 p.m.-10:20 a.m.

1 stop31h 50m

London Southend

Fri 8/5

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

1 stop29h 15m

C$ 922

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/12

Showing 1-10 of 49 results
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Best time to book a flight from Ontario to Southend

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

  • What are the most popular routes from Region of Ontario to London Southend Airport?

    When deciding which route to take from Region of Ontario to London Southend Airport consider Montreal Pierre Elliott Trudeau Intl - London Southend, Toronto Pearson Intl - London Southend or Ottawa - London Southend as they are the most popular.

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

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

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

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

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

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

See more FAQs

Travelling to a place near London Southend Airport?

Book flights to London Southend Airport if you plan to visit one of these locations
Sutton
Twickenham
Slough
Marlow
Milton Keynes
Romford
Watford
Bedford
Luton
Gatwick
Hounslow

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ontario to Southend

See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Ontario to Southend?

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Why should you use Cheapflights to find cheap flight tickets from Ontario to Southend?

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Yes! Cheapflights helps users easily find flights from Ontario to Southend with no change fees.

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Yes! Start tracking prices for Ontario to Southend flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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