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Cheap flights from Portsmouth to Montreal from £481

LHR — YMQ
10 Oct — 17 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Montreal

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Montreal

Tue 6/1009:15 -
2 stops29h 37m
Tue 27/1010:32 -
2 stops18h 18m
Deal found 8/9£579
Thu 22/1020:00 -
2 stops25h 10m
Thu 29/1016:40 -
2 stops15h 15m
Deal found 7/9£644
Wed 7/1017:20 -
1 stop28h 35m
Wed 14/1018:50 -
1 stop17h 00m
Deal found 9/9£664
Wed 7/1017:20 -
2 stops27h 25m
Wed 14/1016:40 -
3 stops21h 50m
Deal found 9/9£665
Mon 5/1009:20 -
2 stops29h 32m
Mon 26/1022:15 -
2 stops17h 10m
Deal found 7/9£703
Mon 7/1219:55 -
2 stops28h 20m
Mon 28/1221:15 -
2 stops17h 10m
Deal found 7/9£717
Tue 8/1219:55 -
2 stops28h 20m
Tue 29/1221:15 -
2 stops30h 10m
Deal found 8/9£725

Find flight deals from Portsmouth to Montreal

Round-trip from

£579

One-way from

£481

Popular in

December

Cheapest in

February

Average price

£417
British Airways
  • British Airways
  • 6/10-27/10
  • 4 total stops
  • 47h 55m total
  • Portsmouth to Montreal
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British Airways
  • British Airways
  • 22/12-31/12
  • 2 total stops
  • 52h 20m total
  • Portsmouth to Montreal
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£3 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Portsmouth to Montreal that are best for you.

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Route

Depart

Return

Price

Cheapest return flight

SouthamptonMontreal

SOU Southampton Eastleigh - YUL Montreal Pierre Elliott Trudeau Intl

SOUYUL

Southampton Eastleigh

Tue 22/12

19:55-19:15

2 stops52h 20m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£481

SouthamptonMontreal

SOU Southampton Eastleigh - YUL Montreal Pierre Elliott Trudeau Intl

SOUYUL

Southampton Eastleigh

Tue 6/10

09:15-09:52

2 stops29h 37m

Montreal Pierre Elliott Trudeau Intl

Tue 27/10

10:32-08:50

2 stops18h 18m

£579

SouthamptonMontreal

SOU Southampton Eastleigh - YUL Montreal Pierre Elliott Trudeau Intl

SOUYUL

Southampton Eastleigh

Thu 22/10

20:00-16:10

2 stops25h 10m

Montreal Pierre Elliott Trudeau Intl

Thu 29/10

16:40-11:55

2 stops15h 15m

£644

SouthamptonMontreal

SOU Southampton Eastleigh - YUL Montreal Pierre Elliott Trudeau Intl

SOUYUL

Southampton Eastleigh

Mon 21/12

06:50-19:15

2 stops17h 25m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£659

SouthamptonMontreal

SOU Southampton Eastleigh - YUL Montreal Pierre Elliott Trudeau Intl

SOUYUL

Southampton Eastleigh

Wed 7/10

17:20-15:45

2 stops27h 25m

Montreal Pierre Elliott Trudeau Intl

Wed 14/10

16:40-19:30

3 stops21h 50m

£665

SouthamptonMontreal

SOU Southampton Eastleigh - YUL Montreal Pierre Elliott Trudeau Intl

SOUYUL

Southampton Eastleigh

Mon 5/10

09:20-09:52

2 stops29h 32m

Montreal Pierre Elliott Trudeau Intl

Mon 26/10

22:15-19:25

2 stops17h 10m

£703

SouthamptonMontreal

SOU Southampton Eastleigh - YUL Montreal Pierre Elliott Trudeau Intl

SOUYUL

Southampton Eastleigh

Tue 8/12

19:55-19:15

2 stops28h 20m

Montreal Pierre Elliott Trudeau Intl

Tue 29/12

21:15-08:25

2 stops30h 10m

£725

SouthamptonMontreal

SOU Southampton Eastleigh - YUL Montreal Pierre Elliott Trudeau Intl

SOUYUL

Southampton Eastleigh

Wed 7/10

17:20-15:05

2 stops26h 45m

Montreal Pierre Elliott Trudeau Intl

Wed 14/10

12:50-08:35

2 stops14h 45m

£784

SouthamptonMontreal

SOU Southampton Eastleigh - YUL Montreal Pierre Elliott Trudeau Intl

SOUYUL

Southampton Eastleigh

Thu 26/11

08:55-19:15

2 stops15h 20m

Montreal Pierre Elliott Trudeau Intl

Mon 30/11

21:15-19:25

2 stops17h 10m

£792

SouthamptonMontreal

SOU Southampton Eastleigh - YUL Montreal Pierre Elliott Trudeau Intl

SOUYUL

Southampton Eastleigh

Thu 26/11

08:55-19:15

2 stops15h 20m

Montreal Pierre Elliott Trudeau Intl

Tue 1/12

21:15-08:25

2 stops30h 10m

£800

Flights are sorted by cheapest return flights first.

Deals found on 6/9

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Portsmouth to Montreal

Have a flexible travel schedule? Discover the best time to fly to Montreal from Portsmouth with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Portsmouth to Montreal

What is the cheapest time of day to fly from P0R to YMQ?

When flying from Portsmouth to Montreal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Portsmouth to Montreal

The most flights from P0R to YMQ are scheduled on a Tuesday (17 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (12 on average).

Related info for your journey

  • How long is the flight from Portsmouth to Montreal?

    Departing from Portsmouth to Montreal will take you 29h 37m. Portsmouth and Montreal are separated by a distance of 3217 mi.

  • What are the most reliable airlines from Portsmouth to Montreal?

    Consider Egyptair (89%), Aegean Airlines (89%) or Thai Airways (89%) when booking your flight. These represent the most reliable airlines when flying from Portsmouth to Montreal.

  • What are the cheapest flights from Portsmouth to Montreal?

    Looking for the cheapest flight from Portsmouth to Montreal? While on average our users pay £1,675, our data indicates the cheapest price to be £226. The most popular route (Southampton Eastleigh - Montreal Pierre Elliott Trudeau Intl), is priced around £664.

  • Can I find deals for flights from Portsmouth to Montreal that include hotel bookings?

    Yes. In addition to deals on Portsmouth to Montreal flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Portsmouth to Montreal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to Montreal.

  • Can I find deals for business class flights from Portsmouth to Montreal?

    Yes. Cheapflights offers flight deals from Portsmouth to Montreal 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

Top 7 airlines flying from Portsmouth to Montreal

AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£309Average£569FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air TransatCheapest£358Average£544FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapest£367Average£550FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
FinnairCheapest£385Average£692FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£394Average£551FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£395Average£609FlexibilityNo cancel feeOn-time70%
Search British Airways flights
SWISSCheapest£453Average£613FlexibilityNo cancel feeOn-time79%
Search SWISS flights

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How does Cheapflights help users find flights from Portsmouth to Montreal?

When you search for this flight from Portsmouth to Montreal, 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 Portsmouth to Montreal?

Cheapflights helps you find that perfect flight to Montreal from Portsmouth by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Portsmouth to Montreal with no change fees?

Need flexible booking options for your flight to Montreal from Portsmouth? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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