Find flights
When to book
FAQs

Cheap flights from London Southend Airport to Ontario from £256

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 21/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — YYZ
29 May — 5 Jun1
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 29 April 2026.

Mon 31/811:10
SEN
-
YUL
1 stop29h 25m
Multiple Airlines
Thu 10/918:50
YUL
-
SEN
1 stop10h 55m
Multiple Airlines
Deal found 26/4£429
Thu 25/613:45
SEN
-
YUL
1 stop26h 50m
Multiple Airlines
Thu 2/718:50
YUL
-
SEN
1 stop10h 55m
Multiple Airlines
Deal found 25/4£430
Fri 26/611:20
SEN
-
YUL
1 stop29h 15m
Multiple Airlines
Sun 5/718:50
YUL
-
SEN
1 stop10h 40m
Multiple Airlines
Deal found 28/4£442
Sat 27/607:55
SEN
-
YUL
2 stops17h 35m
Multiple Airlines
Sun 5/718:50
YUL
-
SEN
1 stop10h 40m
Multiple Airlines
Deal found 28/4£444
Thu 25/613:45
SEN
-
YUL
1 stop26h 50m
Multiple Airlines
Wed 8/718:50
YUL
-
SEN
1 stop16h 50m
Multiple Airlines
Deal found 24/4£447
Sat 27/607:55
SEN
-
YUL
1 stop12h 50m
Multiple Airlines
Tue 7/718:20
YUL
-
SEN
1 stop12h 25m
Multiple Airlines
Deal found 28/4£456
Wed 26/812:15
SEN
-
YUL
1 stop28h 20m
Multiple Airlines
Thu 10/918:50
YUL
-
SEN
1 stop10h 55m
Multiple Airlines
Deal found 27/4£456
Fri 29/511:20
SEN
-
YUL
1 stop29h 15m
Multiple Airlines
Wed 10/621:30
YUL
-
SEN
1 stop10h 30m
Multiple Airlines
Deal found 26/4£459
Mon 1/611:10
SEN
-
YUL
1 stop29h 25m
Multiple Airlines
Sun 7/618:50
YUL
-
SEN
1 stop10h 40m
Multiple Airlines
Deal found 28/4£460
Wed 26/812:15
SEN
-
YUL
1 stop28h 20m
Multiple Airlines
Wed 9/918:50
YUL
-
SEN
1 stop13h 10m
Multiple Airlines
Deal found 27/4£469
Fri 29/511:20
SEN
-
YUL
1 stop29h 15m
Multiple Airlines
Sat 13/618:50
YUL
-
SEN
1 stop10h 35m
Multiple Airlines
Deal found 27/4£474
Sat 27/607:55
SEN
-
YUL
1 stop12h 50m
Multiple Airlines
Wed 1/721:35
YUL
-
SEN
1 stop14h 05m
Multiple Airlines
Deal found 27/4£479

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 29 April 2026.

Round-trip from

£429

One-way from

£256

Popular in

December

Cheapest in

February

Average price

£458
31/8-10/9
  • 31/8-10/9
  • 2 total stops
  • 40h 20m total
  • London to Ontario
Search Deals
21/6
  • 21/6
  • 3 total stops
  • 33h 00m total
  • London to Ontario
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£8 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 29 April 2026.
Use the filters below to find and compare flights from London Southend Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonMontreal

SEN - YUL

SENYUL

London Southend

Thu 25/6

13:45-11:35

1 stop26h 50m

Montreal Pierre Elliott Trudeau Intl

Thu 2/7

18:50-10:45

1 stop10h 55m

£430

LondonMontreal

SEN - YUL

SENYUL

London Southend

Thu 20/8

13:45-11:35

1 stop26h 50m

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

18:50-10:25

1 stop10h 35m

£480

LondonMontreal

SEN - YUL

SENYUL

London Southend

Wed 10/6

08:25-17:20

1 stop13h 55m

Montreal Pierre Elliott Trudeau Intl

Wed 17/6

23:45-21:50

1 stop17h 05m

£533

LondonMontreal

SEN - YUL

SENYUL

London Southend

Mon 8/6

11:10-11:35

1 stop29h 25m

Montreal Pierre Elliott Trudeau Intl

Mon 15/6

23:00-23:00

2 stops43h 00m

£553

LondonMontreal

SEN - YUL

SENYUL

London Southend

Tue 9/6

07:00-11:25

1 stop33h 25m

Montreal Pierre Elliott Trudeau Intl

Tue 16/6

18:50-22:20

1 stop22h 30m

£566

LondonMontreal

SEN - YUL

SENYUL

London Southend

Wed 27/5

08:25-17:20

1 stop13h 55m

Montreal Pierre Elliott Trudeau Intl

Wed 3/6

23:45-21:50

1 stop17h 05m

£576

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Sun 31/5

16:55-17:10

1 stop29h 15m

Toronto Pearson Intl

Sat 13/6

23:45-19:35

1 stop14h 50m

£588

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Thu 11/6

10:10-14:25

1 stop33h 15m

Toronto Pearson Intl

Fri 19/6

21:05-10:25

1 stop32h 20m

£598

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Wed 27/5

16:50-17:10

1 stop29h 20m

Toronto Pearson Intl

Wed 3/6

23:45-16:40

1 stop11h 55m

£609

LondonMontreal

SEN - YUL

SENYUL

London Southend

Thu 28/5

10:10-11:35

1 stop30h 25m

Montreal Pierre Elliott Trudeau Intl

Thu 4/6

18:50-08:00

1 stop32h 10m

£620

Flights are sorted by cheapest return flights first.

Deals found on 24/4

Showing 1-10 of 56 resultsSorted by cheapest first
1
2
3
...
6

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 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 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.

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

    The most popular flight routes from London Southend Airport to Region of Ontario are London Southend - Toronto Pearson Intl, London Southend - Montreal Pierre Elliott Trudeau Intl and London Southend - Ottawa.

  • 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 holiday 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Southend to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Pearson Intl flights
Heathrow to Vancouver Intl flights
Gatwick to Pearson Intl flights
Gatwick to Vancouver Intl flights
London City to Pearson Intl flights
Stansted to Pearson Intl flights
Heathrow to Toronto Island flights
London City to Vancouver Intl flights
Heathrow to Calgary flights
Luton to Pearson Intl flights
Gatwick to Toronto Island flights
Stansted to Vancouver Intl flights
Heathrow to Pierre Elliott Trudeau Intl flights
Gatwick to Pierre Elliott Trudeau Intl flights
Heathrow to Abbotsford flights
Southend to Pearson Intl flights
Gatwick to Calgary flights
London City to Calgary flights
Luton to Vancouver Intl flights
London City to Pierre Elliott Trudeau Intl flights
Stansted to Calgary flights
Heathrow to Halifax flights
Stansted to Pierre Elliott Trudeau Intl flights
Luton to Calgary flights
Luton to Pierre Elliott Trudeau Intl flights
Heathrow to Ottawa flights
Heathrow to Edmonton flights
Gatwick to Ottawa flights
Gatwick to Edmonton flights
Gatwick to Halifax flights
London City to Edmonton flights
Stansted to Edmonton flights
Stansted to Halifax flights
Stansted to Ottawa flights
Heathrow to Winnipeg flights
London City to Halifax flights
Luton to Halifax flights
Heathrow to St. John's flights
Heathrow to Victoria flights
Gatwick to St. John's flights
Heathrow to London flights
London City to Ottawa flights
Gatwick to Winnipeg flights
Heathrow to Québec City flights
Heathrow to Saskatoon flights
Gatwick to Victoria flights
Gatwick to Québec City flights
Gatwick to Kelowna flights
Luton to Edmonton flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Deals for Southend to Ontario flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights simply makes it quick and affordable to book flights from Southend to Ontario by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Southend to Ontario, users can toggle the no change fees filter when performing a flight search.

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

Yes! Start tracking prices for Southend to Ontario 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.