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Cheap flights from London Southend Airport to Ontario from £276

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 16/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — YYZ
9 Jan — 16 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 10 December 2025.

Wed 10/1207:10SEN - YUL
2 stops16h 10mMultiple Airlines
Thu 22/116:45YUL - SEN
2 stops15h 05mMultiple Airlines
Deal found 8/12£464
Tue 9/1215:55SEN - YUL
1 stop25h 15mMultiple Airlines
Sat 31/120:10YUL - SEN
1 stop15h 55mMultiple Airlines
Deal found 9/12£609
Wed 24/1207:10SEN - YYZ
2 stops13h 52mMultiple Airlines
Wed 31/1217:00YYZ - SEN
2 stops23h 00mMultiple Airlines
Deal found 7/12£631
Wed 10/1207:10SEN - YUL
1 stop10h 30mMultiple Airlines
Sun 14/1218:20YUL - SEN
1 stop11h 10mMultiple Airlines
Deal found 8/12£670
Wed 10/1207:10SEN - YYZ
2 stops13h 52mMultiple Airlines
Sun 14/1215:30YYZ - SEN
2 stops14h 00mMultiple Airlines
Deal found 8/12£673
Tue 9/1215:55SEN - YUL
1 stop25h 15mMultiple Airlines
Thu 22/120:10YUL - SEN
1 stop11h 40mMultiple Airlines
Deal found 8/12£673
Sun 14/1218:05SEN - YUL
1 stop23h 35mMultiple Airlines
Sun 28/1218:20YUL - SEN
1 stop11h 10mMultiple Airlines
Deal found 9/12£679
Mon 15/1207:15SEN - YYZ
2 stops19h 29mMultiple Airlines
Wed 31/1218:00YYZ - SEN
2 stops22h 00mMultiple Airlines
Deal found 7/12£683
Mon 29/1217:30SEN - YUL
3 stops45h 05mMultiple Airlines
Thu 29/120:10YUL - SEN
1 stop11h 40mMultiple Airlines
Deal found 9/12£703
Wed 24/1207:10SEN - YUL
1 stop17h 30mMultiple Airlines
Wed 31/1221:40YUL - SEN
1 stop18h 20mMultiple Airlines
Deal found 9/12£705
Sun 21/1218:05SEN - YUL
1 stop21h 40mMultiple Airlines
Thu 8/120:10YUL - SEN
1 stop11h 40mMultiple Airlines
Deal found 9/12£707
Wed 17/1207:10SEN - YYZ
2 stops30h 07mMultiple Airlines
Sat 27/1207:55YYZ - SEN
2 stops31h 55mMultiple Airlines
Deal found 8/12£715

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 10 December 2025.

Round-trip from

£442

One-way from

£276

Popular in

December

Cheapest in

February

Average price

£561
11/2-19/2
  • 11/2-19/2
  • 2 total stops
  • 24h 00m total
  • London to Ontario
Search Deals
16/3
  • 16/3
  • 3 total stops
  • 34h 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. 2% 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 10 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

Mon 20/4

11:10-00:10

2 stops18h 00m

Montreal Pierre Elliott Trudeau Intl

Thu 30/4

18:20-10:45

1 stop11h 25m

£456

LondonMontreal

SEN - YUL

SENYUL

London Southend

Mon 27/4

11:10-12:50

1 stop30h 40m

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

18:50-10:35

1 stop10h 45m

£458

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Fri 16/1

10:00-16:25

2 stops35h 25m

Toronto Pearson Intl

Sat 24/1

20:55-17:05

1 stop15h 10m

£471

LondonMontreal

SEN - YUL

SENYUL

London Southend

Fri 1/5

11:20-14:00

1 stop31h 40m

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

18:50-10:35

1 stop10h 45m

£481

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Mon 9/3

07:15-14:35

1 stop11h 20m

Toronto Pearson Intl

Thu 19/3

20:55-12:50

1 stop11h 55m

£486

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Mon 9/2

07:15-18:15

2 stops16h 00m

Toronto Pearson Intl

Sat 14/2

19:40-20:50

2 stops20h 10m

£506

LondonMontreal

SEN - YUL

SENYUL

London Southend

Fri 24/4

11:20-12:50

1 stop30h 30m

Montreal Pierre Elliott Trudeau Intl

Fri 1/5

21:30-10:20

1 stop31h 50m

£511

LondonMontreal

SEN - YUL

SENYUL

London Southend

Mon 9/2

07:15-17:20

2 stops15h 05m

Montreal Pierre Elliott Trudeau Intl

Sun 15/2

19:05-10:30

1 stop10h 25m

£517

LondonMontreal

SEN - YUL

SENYUL

London Southend

Thu 12/2

18:05-12:40

1 stop23h 35m

Montreal Pierre Elliott Trudeau Intl

Thu 19/2

20:10-12:50

1 stop11h 40m

£524

LondonMontreal

SEN - YUL

SENYUL

London Southend

Fri 3/4

11:20-21:00

1 stop14h 40m

Montreal Pierre Elliott Trudeau Intl

Wed 22/4

20:25-12:45

1 stop11h 20m

£533

Flights are sorted by cheapest return flights first.

Deals found on 9/12

Showing 1-10 of 40 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 - 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

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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.
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Heathrow to Pearson Intl flights
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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.

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