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Cheap flights from London Southend Airport to Ontario from £274

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — YYZ
20 Jan — 27 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 21 December 2025.

Sat 27/1206:40SEN - YUL
1 stop34h 30mMultiple Airlines
Sat 17/120:10YUL - SEN
1 stop15h 55mMultiple Airlines
Deal found 20/12£625
Wed 24/1207:10SEN - YUL
1 stop10h 30mMultiple Airlines
Sun 28/1218:20YUL - SEN
1 stop11h 10mMultiple Airlines
Deal found 19/12£768
Wed 31/1207:10SEN - YYZ
2 stops13h 52mMultiple Airlines
Thu 8/115:35YYZ - SEN
2 stops16h 15mMultiple Airlines
Deal found 19/12£812
Wed 24/1207:10SEN - YUL
1 stop32h 35mMultiple Airlines
Thu 1/120:10YUL - SEN
1 stop11h 40mMultiple Airlines
Deal found 20/12£813
Sat 20/1206:40SEN - YUL
1 stop34h 30mMultiple Airlines
Sat 27/1220:10YUL - SEN
1 stop19h 40mMultiple Airlines
Deal found 19/12£863
Fri 19/1210:00SEN - YUL
1 stop31h 40mMultiple Airlines
Sat 10/120:10YUL - SEN
1 stop19h 40mMultiple Airlines
Deal found 19/12£916
Wed 31/1207:10SEN - YUL
2 stops15h 10mMultiple Airlines
Sun 4/119:05YUL - SEN
1 stop10h 25mMultiple Airlines
Deal found 20/12£990
Wed 24/1207:10SEN - YYZ
1 stop12h 40mMultiple Airlines
Thu 8/120:55YYZ - SEN
1 stop10h 55mMultiple Airlines
Deal found 19/12£1,079
Wed 24/1207:10SEN - YUL
1 stop13h 10mMultiple Airlines
Sun 4/119:05YUL - SEN
1 stop10h 25mMultiple Airlines
Deal found 19/12£1,104
Sun 21/1207:10SEN - YUL
1 stop13h 25mMultiple Airlines
Tue 30/1220:15YUL - SEN
1 stop13h 15mMultiple Airlines
Deal found 19/12£1,156
Sat 20/1220:00SEN - YYZ
2 stops29h 40mMultiple Airlines
Sat 31/120:55YYZ - SEN
1 stop15h 10mMultiple Airlines
Deal found 20/12£1,263
Mon 22/1207:15SEN - YYZ
1 stop12h 35mMultiple Airlines
Thu 1/120:55YYZ - SEN
1 stop10h 55mMultiple Airlines
Deal found 20/12£1,301

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 21 December 2025.

Round-trip from

£440

One-way from

£274

Popular in

December

Cheapest in

February

Average price

£557
16/4-23/4
  • 16/4-23/4
  • 3 total stops
  • 45h 35m total
  • London to Ontario
Search Deals
3/5
  • 3/5
  • 2 total stops
  • 24h 10m 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 21 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

Thu 16/4

09:50-15:00

2 stops34h 10m

Montreal Pierre Elliott Trudeau Intl

Thu 23/4

18:20-10:45

1 stop11h 25m

£440

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Mon 2/2

07:15-19:45

2 stops17h 30m

Toronto Pearson Intl

Thu 12/2

20:55-12:50

1 stop10h 55m

£443

LondonMontreal

SEN - YUL

SENYUL

London Southend

Mon 2/2

07:15-15:45

1 stop13h 30m

Montreal Pierre Elliott Trudeau Intl

Thu 19/2

21:25-12:50

1 stop10h 25m

£445

LondonMontreal

SEN - YUL

SENYUL

London Southend

Wed 11/2

07:10-15:45

1 stop13h 35m

Montreal Pierre Elliott Trudeau Intl

Thu 19/2

21:25-12:50

1 stop10h 25m

£446

LondonMontreal

SEN - YUL

SENYUL

London Southend

Tue 10/3

20:20-20:40

2 stops28h 20m

Montreal Pierre Elliott Trudeau Intl

Sat 14/3

21:10-17:05

1 stop15h 55m

£519

LondonMontreal

SEN - YUL

SENYUL

London Southend

Tue 10/3

20:20-20:40

2 stops28h 20m

Montreal Pierre Elliott Trudeau Intl

Thu 19/3

21:10-12:50

1 stop11h 40m

£520

LondonMontreal

SEN - YUL

SENYUL

London Southend

Fri 23/1

10:00-19:40

1 stop14h 40m

Montreal Pierre Elliott Trudeau Intl

Thu 29/1

20:10-12:50

1 stop11h 40m

£522

LondonMontreal

SEN - YUL

SENYUL

London Southend

Fri 27/2

10:00-12:40

1 stop31h 40m

Montreal Pierre Elliott Trudeau Intl

Sat 7/3

20:10-17:05

1 stop15h 55m

£525

LondonMontreal

SEN - YUL

SENYUL

London Southend

Sat 17/1

06:40-12:10

1 stop34h 30m

Montreal Pierre Elliott Trudeau Intl

Sat 24/1

20:10-17:05

1 stop15h 55m

£531

LondonToronto

SEN - YYZ

SENYYZ

London Southend

Sun 26/4

16:55-17:10

1 stop29h 15m

Toronto Pearson Intl

Sun 3/5

23:45-19:35

1 stop14h 50m

£545

Flights are sorted by cheapest return flights first.

Deals found on 19/12

Showing 1-10 of 48 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.
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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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