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Cheap flights from London Southend Airport to Ontario from £273

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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — YYZ
11 Jan — 18 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 12 December 2025.

Wed 24/1207:10SEN - YUL
1 stop18h 40mMultiple Airlines
Wed 31/1219:10YUL - SEN
2 stops20h 50mMultiple Airlines
Deal found 9/12£607
Tue 16/1215:55SEN - YUL
1 stop25h 15mMultiple Airlines
Thu 8/120:10YUL - SEN
1 stop11h 40mMultiple Airlines
Deal found 10/12£627
Wed 24/1207:10SEN - YYZ
2 stops17h 34mMultiple Airlines
Thu 8/120:55YYZ - SEN
1 stop10h 55mMultiple Airlines
Deal found 10/12£640
Sun 14/1218:05SEN - YUL
1 stop23h 35mMultiple Airlines
Sun 28/1218:20YUL - SEN
1 stop11h 10mMultiple Airlines
Deal found 10/12£695
Thu 18/1207:15SEN - YUL
1 stop33h 55mMultiple Airlines
Wed 31/1221:40YUL - SEN
1 stop18h 20mMultiple Airlines
Deal found 10/12£724
Wed 17/1207:10SEN - YUL
1 stop10h 30mMultiple Airlines
Thu 25/1220:10YUL - SEN
1 stop11h 40mMultiple Airlines
Deal found 9/12£780
Mon 22/1207:15SEN - YUL
1 stop32h 30mMultiple Airlines
Sun 4/118:20YUL - SEN
1 stop11h 10mMultiple Airlines
Deal found 9/12£795
Fri 26/1206:40SEN - YYZ
1 stop12h 45mMultiple Airlines
Wed 31/1220:25YYZ - SEN
1 stop15h 50mMultiple Airlines
Deal found 10/12£851
Tue 23/1215:55SEN - YUL
1 stop25h 15mMultiple Airlines
Wed 31/1218:20YUL - SEN
1 stop21h 40mMultiple Airlines
Deal found 10/12£866
Thu 18/1206:50SEN - YYZ
3 stops42h 00mMultiple Airlines
Sun 21/1210:10YYZ - SEN
2 stops23h 40mMultiple Airlines
Deal found 12/12£933
Thu 11/1207:15SEN - YUL
1 stop33h 55mMultiple Airlines
Wed 17/1218:20YUL - SEN
1 stop21h 40mMultiple Airlines
Deal found 9/12£940
Fri 19/1210:00SEN - YUL
1 stop31h 40mMultiple Airlines
Sun 28/1218:20YUL - SEN
1 stop11h 10mMultiple Airlines
Deal found 11/12£951

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 12 December 2025.

Round-trip from

£435

One-way from

£273

Popular in

December

Cheapest in

February

Average price

£558
4/2-11/2
  • 4/2-11/2
  • 2 total stops
  • 32h 10m total
  • London to Ontario
Search Deals
4/5
  • 4/5
  • 2 total stops
  • 22h 55m total
  • London to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£20 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 12 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

Wed 4/2

07:10-15:45

1 stop13h 35m

Montreal Pierre Elliott Trudeau Intl

Wed 11/2

21:25-21:00

1 stop18h 35m

£435

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Wed 29/4

16:50-17:10

1 stop29h 20m

Toronto Pearson Intl

Wed 13/5

23:45-16:40

1 stop11h 55m

£453

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Wed 25/2

07:10-18:15

2 stops16h 05m

Toronto Pearson Intl

Wed 4/3

19:40-21:00

2 stops20h 20m

£457

LondonMontreal

SEN - YUL

SENYUL

London Southend

Sat 2/5

16:50-17:20

1 stop29h 30m

Montreal Pierre Elliott Trudeau Intl

Sun 17/5

23:45-19:50

1 stop15h 05m

£479

LondonMontreal

SEN - YUL

SENYUL

London Southend

Sat 24/1

06:30-19:40

2 stops42h 10m

Montreal Pierre Elliott Trudeau Intl

Sat 31/1

20:10-17:05

1 stop15h 55m

£496

LondonMontreal

SEN - YUL

SENYUL

London Southend

Thu 14/5

09:50-11:35

1 stop30h 45m

Montreal Pierre Elliott Trudeau Intl

Thu 4/6

18:50-10:45

1 stop10h 55m

£497

LondonMontreal

SEN - YUL

SENYUL

London Southend

Sun 29/3

07:25-15:05

1 stop12h 40m

Montreal Pierre Elliott Trudeau Intl

Sun 5/4

18:20-10:35

1 stop11h 15m

£505

LondonMontreal

SEN - YUL

SENYUL

London Southend

Sun 12/4

07:25-15:05

1 stop12h 40m

Montreal Pierre Elliott Trudeau Intl

Wed 22/4

21:35-12:45

1 stop10h 10m

£505

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Mon 19/1

07:15-18:15

2 stops16h 00m

Toronto Pearson Intl

Sat 24/1

19:40-17:05

2 stops16h 25m

£511

LondonMontreal

SEN - YUL

SENYUL

London Southend

Tue 5/5

06:20-17:20

1 stop16h 00m

Montreal Pierre Elliott Trudeau Intl

Thu 21/5

18:50-10:45

1 stop10h 55m

£531

Flights are sorted by cheapest return flights first.

Deals found on 11/12

Showing 1-10 of 41 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 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 - Montreal Pierre Elliott Trudeau Intl, London Southend - Toronto Pearson 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

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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.
Heathrow to Vancouver Intl flights
Heathrow to Pearson Intl flights
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Gatwick to Vancouver Intl flights
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Stansted to Vancouver Intl flights
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Gatwick to Pierre Elliott Trudeau Intl flights
London City to Pierre Elliott Trudeau Intl flights
Heathrow to Ottawa flights
Luton to Pierre Elliott Trudeau Intl flights
Stansted to Pierre Elliott Trudeau Intl flights
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Heathrow to Edmonton flights
Gatwick to Ottawa flights
Stansted to Calgary flights
London City to Ottawa flights
Luton to Calgary flights
Southend to Pearson Intl flights
Luton to Vancouver Intl flights
Heathrow to Winnipeg flights
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Gatwick to St. John's flights
London City to Abbotsford flights
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Heathrow to London flights

Fly with Cheapflights

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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.

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