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Cheap flights from Portsmouth to Montreal from £368

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 31/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YMQ
21 Nov — 28 Nov1
1 adult
1 adult, Economy

Cheap flight deals from Portsmouth to Montreal

Keep the following information in mind while searching for Portsmouth to Montreal flight deals. Data was last updated 22 October 2025.

Round-trip from

£498

One-way from

£368

Popular in

December

Cheapest in

September

Average price

£448
4/11-7/11
  • 4/11-7/11
  • 2 total stops
  • 45h 30m total
  • Portsmouth to Montreal
Search Deals
31/10
  • 31/10
  • 2 total stops
  • 34h 25m total
  • Portsmouth to Montreal
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£25 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 October 2025
Search Deals

Find flight deals from Portsmouth to Montreal

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Montreal
Explore the most affordable flight options available from Portsmouth to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 October 2025.

Tue 4/1115:20SOU - YUL
1 stop33h 20mMultiple Airlines
Fri 7/1121:40YUL - SOU
1 stop12h 10mMultiple Airlines
Deal found 21/10£498
Wed 19/1108:40SOU - YUL
1 stop13h 40mDelta
Sun 23/1116:45YUL - SOU
2 stops34h 25mDelta
Deal found 19/10£634
Fri 5/1208:40SOU - YUL
1 stop13h 40mVirgin Atlantic
Fri 12/1219:10YUL - SOU
1 stop16h 50mVirgin Atlantic
Deal found 21/10£653
Wed 19/1108:40SOU - YUL
1 stop13h 40mKLM
Sun 23/1106:45YUL - SOU
2 stops44h 25mKLM
Deal found 21/10£682
Fri 5/1208:40SOU - YUL
1 stop13h 40mMultiple Airlines
Fri 12/1216:45YUL - SOU
2 stops19h 15mMultiple Airlines
Deal found 21/10£715
Wed 19/1108:30SOU - YUL
2 stops15h 15mBritish Airways
Sun 23/1120:40YUL - SOU
3 stops15h 45mBritish Airways
Deal found 20/10£717

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Montreal 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 22 October 2025.
Use the filters below to find and compare flights from Portsmouth to Montreal that are best for you.

Fly from

Portsmouth

Fly to

Montreal

Route

Depart

Return

Price

SouthamptonMontreal

SOU - YUL

SOUYUL

Southampton Eastleigh

Tue 4/11

15:20-19:40

1 stop33h 20m

Montreal Pierre Elliott Trudeau Intl

Fri 7/11

21:40-14:50

1 stop12h 10m

£498

SouthamptonMontreal

SOU - YUL

SOUYUL

Southampton Eastleigh

Wed 19/11

08:40-17:20

1 stop13h 40m

Montreal Pierre Elliott Trudeau Intl

Sun 23/11

16:45-08:10

2 stops34h 25m

£634

SouthamptonMontreal

SOU - YUL

SOUYUL

Southampton Eastleigh

Fri 5/12

08:40-17:20

1 stop13h 40m

Montreal Pierre Elliott Trudeau Intl

Fri 12/12

19:10-17:00

1 stop16h 50m

£653

SouthamptonMontreal

SOU - YUL

SOUYUL

Southampton Eastleigh

Wed 19/11

08:40-17:20

1 stop13h 40m

Montreal Pierre Elliott Trudeau Intl

Sun 23/11

06:45-08:10

2 stops44h 25m

£682

SouthamptonMontreal

SOU - YUL

SOUYUL

Southampton Eastleigh

Fri 5/12

08:40-17:20

1 stop13h 40m

Montreal Pierre Elliott Trudeau Intl

Fri 12/12

16:45-17:00

2 stops19h 15m

£715

SouthamptonMontreal

SOU - YUL

SOUYUL

Southampton Eastleigh

Wed 19/11

08:30-18:45

2 stops15h 15m

Montreal Pierre Elliott Trudeau Intl

Sun 23/11

20:40-17:25

3 stops15h 45m

£717

SouthamptonMontreal

SOU - YUL

SOUYUL

Southampton Eastleigh

Fri 31/10

14:15-20:40

2 stops34h 25m

£368

SouthamptonMontreal

SOU - YUL

SOUYUL

Southampton Eastleigh

Tue 6/1

06:50-18:45

2 stops40h 55m

£794

SouthamptonMontreal

SOU - YUL

SOUYUL

Southampton Eastleigh

Wed 7/1

06:50-18:45

2 stops16h 55m

£794

SouthamptonMontreal

SOU - YUL

SOUYUL

Southampton Eastleigh

Thu 8/1

18:00-18:45

2 stops53h 45m

£835

Flights are sorted by cheapest return flights first.

Deals found on 21/10

Showing 1-10 of 16 results
1
2

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
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 Portsmouth to Montreal

What is the cheapest month to book a flight from Portsmouth to Montreal?

Currently, May is the cheapest month in which you can book a flight from Portsmouth to Montreal (average of £259). Flying from Portsmouth to Montreal in December is currently the most expensive (average of £398). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Find hourly flight availability from Portsmouth to Montreal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 October 2025.

One of the essential ways to save on airfare from Portsmouth to Montreal is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 14% on airfare.

What is the cheapest day to fly from Portsmouth to Montreal?

Use this chart to determine the cheapest time to fly return from Portsmouth to Montreal. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Portsmouth to Montreal flight should consider departing on Friday mornings when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Montreal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portsmouth to Montreal?

    Departing from Portsmouth to Montreal will take you 13h 40m. Portsmouth and Montreal are separated by a distance of 3217 mi.

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

    Consider Egyptair (83%), Air Canada (82%) or Austrian Airlines (82%) 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 £1,014, our data indicates the cheapest price to be £293. The most popular route (Southampton Eastleigh - Montreal Pierre Elliott Trudeau Intl), is priced around £498.

  • 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.

  • What is the cheapest month to book a flight from Portsmouth to Montreal?

    Currently, May is the cheapest month in which you can book a flight from Portsmouth to Montreal (average of £259). Flying from Portsmouth to Montreal in December is currently the most expensive (average of £398). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Portsmouth to Montreal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Portsmouth to Montreal

Discover the top 9 airlines that operate flights from Portsmouth to Montreal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 22 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£97Average£451FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£260Average£725FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air TransatCheapest£296Average£466FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapest£327Average£557FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
TAP AIR PORTUGALCheapest£337Average£543FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air CanadaCheapest£368Average£491FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapest£375Average£509FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£378Average£525FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£400Average£586FlexibilityNo cancel feeOn-time76%
Search Finnair 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 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.

Can Cheapflights notify me if prices for flights from Portsmouth to Montreal become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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