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Cheap flights from Ontario to London Southend Airport from £210

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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEN
18 Jul — 25 Jul1
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 June 2026.

Thu 17/923:45
YYZ
-
SEN
1 stop14h 50m
Multiple Airlines
Wed 23/916:50
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Deal found 14/6£445
Thu 24/923:45
YYZ
-
SEN
1 stop14h 50m
Multiple Airlines
Wed 30/916:50
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Deal found 17/6£447
Thu 27/823:45
YYZ
-
SEN
1 stop14h 25m
Multiple Airlines
Wed 9/916:50
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Deal found 16/6£453
Sun 6/923:45
YYZ
-
SEN
1 stop14h 50m
Multiple Airlines
Sun 13/916:55
SEN
-
YYZ
1 stop29h 15m
Multiple Airlines
Deal found 14/6£454
Sun 27/923:45
YYZ
-
SEN
1 stop14h 50m
Multiple Airlines
Mon 12/1016:55
SEN
-
YYZ
1 stop29h 15m
Multiple Airlines
Deal found 14/6£455
Sat 12/923:45
YYZ
-
SEN
1 stop14h 50m
Multiple Airlines
Sun 20/916:55
SEN
-
YYZ
1 stop29h 15m
Multiple Airlines
Deal found 17/6£457
Sat 5/923:45
YYZ
-
SEN
1 stop14h 50m
Multiple Airlines
Wed 16/916:50
SEN
-
YYZ
1 stop29h 20m
Multiple Airlines
Deal found 15/6£460
Wed 8/715:20
YYZ
-
SEN
2 stops20h 20m
Multiple Airlines
Mon 13/707:45
SEN
-
YYZ
2 stops29h 28m
Multiple Airlines
Deal found 14/6£463
Wed 19/821:05
YYZ
-
SEN
1 stop14h 35m
Multiple Airlines
Wed 26/812:15
SEN
-
YYZ
1 stop31h 10m
Multiple Airlines
Deal found 17/6£464
Fri 16/1023:45
YUL
-
SEN
1 stop17h 00m
Multiple Airlines
Wed 21/1008:25
SEN
-
YUL
1 stop13h 55m
Multiple Airlines
Deal found 15/6£491
Thu 3/918:50
YUL
-
SEN
1 stop10h 55m
Multiple Airlines
Sun 13/907:25
SEN
-
YUL
1 stop11h 35m
Multiple Airlines
Deal found 17/6£492
Mon 21/923:45
YUL
-
SEN
1 stop27h 10m
Multiple Airlines
Sat 3/1016:50
SEN
-
YUL
1 stop29h 30m
Multiple Airlines
Deal found 14/6£493

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 June 2026.

Round-trip from

£445

One-way from

£210

Popular in

July

Cheapest in

February

Average price

£549
17/9-23/9
  • 17/9-23/9
  • 2 total stops
  • 44h 10m total
  • Ontario to London
Search Deals
5/7
  • 5/7
  • 2 total stops
  • 34h 35m total
  • Ontario to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£70 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 18 June 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

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Tue 4/8

23:45-19:40

1 stop14h 55m

London Southend

Wed 12/8

16:50-17:10

1 stop29h 20m

£534

OttawaLondon

YOW - SEN

YOWSEN

Ottawa

Wed 7/10

16:00-13:00

2 stops16h 00m

London Southend

Sun 18/10

07:25-00:25

2 stops22h 00m

£579

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Thu 20/8

23:45-19:10

1 stop14h 25m

London Southend

Fri 28/8

16:30-17:10

1 stop29h 40m

£582

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Fri 28/8

23:45-21:45

1 stop17h 00m

London Southend

Mon 31/8

11:10-11:35

1 stop29h 25m

£634

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Thu 9/7

18:50-10:45

1 stop10h 55m

London Southend

Thu 16/7

13:45-14:00

1 stop29h 15m

£641

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Fri 11/9

21:05-10:25

1 stop32h 20m

London Southend

Thu 17/9

17:15-15:15

1 stop27h 00m

£650

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Wed 15/7

21:05-16:40

1 stop14h 35m

London Southend

Wed 29/7

12:15-14:25

1 stop31h 10m

£651

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Wed 22/7

18:50-16:40

1 stop16h 50m

London Southend

Wed 29/7

12:15-11:35

1 stop28h 20m

£656

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Thu 24/9

23:45-19:35

1 stop14h 50m

London Southend

Sun 27/9

16:55-17:10

1 stop29h 15m

£672

TorontoLondon

YYZ - SEN

YYZSEN

Toronto Pearson Intl

Fri 11/9

21:05-10:25

1 stop32h 20m

London Southend

Sun 27/9

16:55-17:10

1 stop29h 15m

£675

Flights are sorted by cheapest return flights first.

Deals found on 16/6

Showing 1-10 of 53 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
Wembley
Luton
Gatwick
Croydon
Slough
Ilford
Hayes
Brentford
Colchester
Kingston upon Thames
Eastbourne
Watford
Guildford
Romford
Ipswich
Borehamwood
Folkestone
Southall

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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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