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Cheap flights from Ontario to London Southend Airport from £204

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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEN
3 Sep — 10 Sep1
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 4 August 2026.

Thu 10/918:50
YUL
-
SEN
1 stop10h 55m
Multiple Airlines
Mon 21/911:10
SEN
-
YUL
1 stop29h 25m
Multiple Airlines
Deal found 31/7£421
Mon 21/918:35
YUL
-
SEN
1 stop11h 45m
Multiple Airlines
Wed 7/1008:25
SEN
-
YUL
2 stops15h 27m
Multiple Airlines
Deal found 1/8£430
Wed 2/918:50
YUL
-
SEN
1 stop13h 10m
Multiple Airlines
Wed 9/908:25
SEN
-
YUL
1 stop13h 55m
Multiple Airlines
Deal found 31/7£435
Thu 5/1120:10
YUL
-
SEN
1 stop16h 05m
Multiple Airlines
Sun 15/1115:55
SEN
-
YUL
1 stop25h 45m
Multiple Airlines
Deal found 3/8£436
Thu 24/918:50
YUL
-
SEN
1 stop10h 55m
Multiple Airlines
Mon 5/1011:10
SEN
-
YUL
1 stop29h 25m
Multiple Airlines
Deal found 31/7£439
Wed 7/1023:45
YYZ
-
SEN
1 stop11h 55m
Multiple Airlines
Wed 14/1016:50
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Deal found 1/8£440
Mon 14/923:45
YUL
-
SEN
1 stop27h 10m
Multiple Airlines
Wed 30/908:25
SEN
-
YUL
1 stop13h 55m
Multiple Airlines
Deal found 31/7£442
Sun 13/923:45
YYZ
-
SEN
1 stop14h 50m
Multiple Airlines
Wed 23/916:50
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Deal found 31/7£450
Sat 14/1120:10
YUL
-
SEN
1 stop17h 35m
Multiple Airlines
Fri 20/1114:25
SEN
-
YUL
1 stop27h 15m
Multiple Airlines
Deal found 3/8£450
Sun 27/918:50
YUL
-
SEN
1 stop10h 40m
Multiple Airlines
Mon 12/1011:10
SEN
-
YUL
1 stop29h 25m
Multiple Airlines
Deal found 2/8£452
Wed 2/923:45
YYZ
-
SEN
1 stop11h 55m
Multiple Airlines
Wed 16/916:50
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Deal found 1/8£452
Sat 26/923:45
YYZ
-
SEN
1 stop14h 50m
Multiple Airlines
Fri 2/1016:55
SEN
-
YYZ
1 stop29h 15m
Multiple Airlines
Deal found 30/7£453

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 4 August 2026.

Round-trip from

£421

One-way from

£204

Popular in

December

Cheapest in

February

Average price

£615
25/9-13/10
  • 25/9-13/10
  • 2 total stops
  • 32h 50m total
  • Ontario to London
Search Deals
10/8
  • 10/8
  • 2 total stops
  • 43h 25m total
  • Ontario to London
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 4 August 2026.
Use the filters below to find and compare flights from Ontario to London Southend Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Thu 10/9

18:50-10:45

1 stop10h 55m

London Southend

Mon 21/9

11:10-11:35

1 stop29h 25m

£421

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Thu 24/9

18:50-10:45

1 stop10h 55m

London Southend

Mon 5/10

11:10-11:35

1 stop29h 25m

£439

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Wed 7/10

23:45-16:40

1 stop11h 55m

London Southend

Wed 14/10

16:50-17:10

1 stop29h 20m

£447

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Wed 2/9

23:45-16:40

1 stop11h 55m

London Southend

Wed 16/9

16:50-17:10

1 stop29h 20m

£461

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Sun 13/9

23:45-19:35

1 stop14h 50m

London Southend

Sun 20/9

16:55-17:10

1 stop29h 15m

£462

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Sun 27/9

23:45-19:35

1 stop14h 50m

London Southend

Mon 12/10

16:55-17:10

1 stop29h 15m

£471

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Tue 18/8

18:50-11:45

1 stop11h 55m

London Southend

Thu 27/8

13:45-11:35

1 stop26h 50m

£471

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Sun 13/9

23:45-19:35

1 stop14h 50m

London Southend

Sun 27/9

16:55-17:10

1 stop29h 15m

£473

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Thu 1/10

18:50-10:45

1 stop10h 55m

London Southend

Thu 8/10

10:10-11:35

1 stop30h 25m

£478

OttawaLondon

YOW - SEN

YOWSEN

Ottawa

Sun 4/10

14:15-10:30

2 stops15h 15m

London Southend

Sun 11/10

07:25-17:35

2 stops15h 10m

£544

Flights are sorted by cheapest return flights first.

Deals found on 3/8

Showing 1-10 of 54 resultsSorted by cheapest first
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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 return 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?

    While some choose either Montreal Pierre Elliott Trudeau Intl - London Southend or Ottawa - London Southend, Toronto Pearson Intl - London Southend is the most popular route from Region of Ontario to London Southend Airport.

  • 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 holiday 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
Hounslow
Milton Keynes
Luton
Gatwick
Wembley
Slough
Ilford
Hayes
Croydon
Colchester
Brentford
Eastbourne
Watford
Southend-on-Sea
Enfield
Kingston upon Thames
Southall
Aylesbury
Dover
Romford

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How does Cheapflights help users find flights from Ontario to Southend?

When you search for this flight from Ontario to Southend, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ontario to Southend for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Ontario to Southend with no change fees?

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

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

Not ready to book yet? You can track prices for flights from Ontario to Southend on Cheapflights with our Price Alert feature and get notified when better prices are available.

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