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Cheap flights from Montreal to Portsmouth

YMQ — LHR
2 Nov — 9 Nov1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Montreal to Portsmouth

Popular in

December

Cheapest in

September

Average price

C$ 1,001
Highest demand for flights based on searches. 2% potential increase in price (C$ 40 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 27 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Cheapflights Insights

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

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

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.

Related info for your journey

  • 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 Egyptair (80%), Air Canada (74%) or Austrian Airlines (74%) 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$ 2,411 for a flight from Montreal to Portsmouth. The cheapest flight overall is C$ 619 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - Southampton Eastleigh) is currently priced at C$ 1,419.

  • 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.

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Top 8 airlines flying from Montreal to Portsmouth

AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapestC$ 571AverageC$ 862FlexibilityNo cancel feeOn-timeN/A
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Air TransatCheapestC$ 687AverageC$ 970FlexibilityNo cancel feeOn-time50%
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Porter AirlinesCheapestC$ 750AverageC$ 947FlexibilityNo cancel feeOn-time52%
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British AirwaysCheapestC$ 844AverageC$ 1,094FlexibilityNo cancel feeOn-time70%
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Air CanadaCheapestC$ 854AverageC$ 1,105FlexibilityNo cancel feeOn-time67%
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LufthansaCheapestC$ 876AverageC$ 1,113FlexibilityNo cancel feeOn-time76%
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American AirlinesCheapestC$ 883AverageC$ 1,054FlexibilityNo cancel feeOn-time71%
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FinnairCheapestC$ 971AverageC$ 1,111FlexibilityNo cancel feeOn-time76%
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Deals for Montreal to Portsmouth 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.

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Millions of users choose and trust Cheapflights to book the best flight deals from Montreal to Portsmouth for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

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