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Cheap flights from Montreal to Portsmouth from C$ 598

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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — LHR
19 Mar — 26 Mar1
1 adult

Cheap flight deals from Montreal to Portsmouth

Keep the following information in mind while searching for Montreal to Portsmouth flight deals. Data was last updated 14 March 2025.

Round-trip from

C$ 968

One-way from

C$ 598

Popular in

February

Cheapest in

January

Average price

C$ 1,440
Delta
  • Delta
  • 21/4-24/4
  • 2 total stops
  • 45h 30m total
  • Montreal to Portsmouth
5/4
  • 5/4
  • 3 total stops
  • 58h 55m total
  • Montreal to Portsmouth
Highest demand for flights based on searches. 11% potential increase in price (C$ 292 potential increase over avg. RT price).
Cheapest flight prices on average. 9% potential price decrease (C$ 193 potential savings vs. average RT price).
Average for round-trip flights in March 2025

Find flight deals from Montreal to Portsmouth

Cheapest flights from Montreal to Portsmouth
Explore the most affordable flight options available from Montreal to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 March 2025.

Mon 21/46:50 p.m.YUL - SOU
1 stop17h 10mDelta
Thu 24/45:35 p.m.SOU - YUL
1 stop28h 20mDelta
Deal found 13/3C$ 968
Tue 16/96:50 p.m.YUL - SOU
1 stop17h 10mKLM
Tue 30/95:35 p.m.SOU - YUL
1 stop28h 20mKLM
Deal found 13/3C$ 1,371

Find flights from Montreal to Portsmouth within your budget

Customize your flight search to find flights from Montreal to Portsmouth 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 629,999 searches. Data last updated 14 March 2025.

Fly from

Montreal

Fly to

Portsmouth

Route

Depart

Return

Price

MontrealSouthampton

YUL - SOU

YULSOU

Montreal Pierre Elliott Trudeau Intl

Mon 21/4

6:50 p.m.-5:00 p.m.

1 stop17h 10m

Southampton Eastleigh

Thu 24/4

5:35 p.m.-4:55 p.m.

1 stop28h 20m

C$ 968

MontrealSouthampton

YUL - SOU

YULSOU

Montreal Pierre Elliott Trudeau Intl

Sat 5/4

4:20 p.m.-8:15 a.m.

3 stops58h 55m

C$ 598

MontrealSouthampton

YUL - SOU

YULSOU

Montreal Pierre Elliott Trudeau Intl

Sat 5/4

6:50 p.m.-5:50 p.m.

1 stop18h 00m

C$ 1,171

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/3

Best time to book a flight from Montreal to Portsmouth

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

Travel insights for flights from Montreal to Portsmouth

Get recent, data-driven insights about flights from Montreal to Portsmouth including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Montreal to Portsmouth (average of C$ 560). Flying from Montreal to Portsmouth in July is currently the most expensive (average of C$ 874). 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 YMQ to P0R?

Find hourly flight availability from Montreal to Portsmouth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 March 2025.

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

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

Use this chart to determine the cheapest time to fly round-trip from Montreal to Portsmouth. Price data was last updated on 15 September 2024.

Travelers seeking maximum savings on their Montreal to Portsmouth flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Montreal to Portsmouth

Explore weekly flight availability from Montreal to Portsmouth. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 14 March 2025.

The most flights from YMQ to P0R are scheduled on a Tuesday (11 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (5 on average).

Rainfall in Portsmouth by month

Plan your trip to Portsmouth by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portsmouth ranges from 25.0 - 76.0 mm per month. December is typically the wettest month, when rainfall can reach 76.0 mm. July is typically the driest time to visit Portsmouth when rainfall is around 25.0 mm.

Temperature in Portsmouth by month

Plan your trip to Portsmouth by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portsmouth, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Portsmouth

Get insights into the airlines that provide service to Portsmouth. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portsmouth. Reviews last updated 14 March 2025.

Crew

8.5

Comfort

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

8.0
Very good

Crew

8.5

Comfort

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Montreal to Portsmouth. 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 reliable airlines from Montreal to Portsmouth?

    No one likes to see their flight delayed. When booking a flight from Montreal to Portsmouth consider choosing Aer Lingus (58%), American Airlines (57%) or Finnair (57%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Montreal to Portsmouth?

    On average you can expect to pay C$ 3,028 for a flight from Montreal to Portsmouth. The cheapest flight overall is C$ 802 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - Southampton Eastleigh) is currently priced at C$ 968.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Montreal to Portsmouth 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 Montreal to Portsmouth?

    Currently, January is the cheapest month in which you can book a flight from Montreal to Portsmouth (average of C$ 560). Flying from Montreal to Portsmouth in July is currently the most expensive (average of C$ 874). 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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Top 10 airlines flying from Montreal to Portsmouth

Discover the top 10 airlines that operate flights from Montreal to Portsmouth. 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 629,999 searches. Data last updated 14 March 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapestC$ 592AverageC$ 1,050FlexibilityNo cancel feeOn-time76%
Search Finnair flights
TAP AIR PORTUGALCheapestC$ 629AverageC$ 698FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air FranceCheapestC$ 635AverageC$ 922FlexibilityNo cancel feeOn-time77%
Search Air France flights
Porter AirlinesCheapestC$ 716AverageC$ 801FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 733AverageC$ 1,043FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapestC$ 777AverageC$ 1,053FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapestC$ 779AverageC$ 898FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapestC$ 842AverageC$ 1,070FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapestC$ 845AverageC$ 1,082FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapestC$ 1,013AverageC$ 1,190FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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