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Cheap flights from Montreal to Porto from C$ 347

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — OPO
14 Sep — 21 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Montreal to Porto are usually found in January or May, booked 60 days in advance, depart on a Sunday or Monday and return on a Thursday

Cheap flight deals from Montreal to Porto

Enter your travel dates to find the best prices.

Cheapest flights from Montreal to Porto
Explore the most affordable flight options available from Montreal to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 August 2026.

Wed 9/98:35 p.m. -
1 stop10h 20m
Fri 11/98:25 a.m. -
Nonstop7h 15m
Deal found 13/8C$ 646
Mon 5/107:20 p.m. -
Nonstop6h 40m
Tue 20/1011:15 a.m. -
Nonstop7h 50m
Deal found 11/8C$ 647
Tue 6/107:20 p.m. -
Nonstop6h 40m
Wed 21/106:45 p.m. -
2 stops29h 36m
Deal found 11/8C$ 650
Fri 9/103:10 p.m. -
1 stop15h 35m
Fri 23/108:25 a.m. -
Nonstop7h 15m
Deal found 11/8C$ 653
Wed 9/98:35 p.m. -
1 stop10h 20m
Wed 16/98:25 a.m. -
Nonstop7h 15m
Deal found 12/8C$ 654
Thu 8/107:25 p.m. -
Nonstop6h 20m
Wed 14/108:25 a.m. -
Nonstop7h 15m
Deal found 13/8C$ 656
Mon 7/96:45 a.m. -
1 stop24h 00m
Wed 16/98:25 a.m. -
Nonstop7h 15m
Deal found 11/8C$ 657
Tue 13/107:25 p.m. -
Nonstop6h 20m
Fri 16/108:25 a.m. -
Nonstop7h 15m
Deal found 11/8C$ 660
Tue 8/97:25 p.m. -
Nonstop6h 20m
Tue 15/98:25 a.m. -
Nonstop7h 15m
Deal found 11/8C$ 663
Mon 12/1010:45 p.m. -
1 stop11h 15m
Mon 19/107:00 a.m. -
1 stop19h 10m
Deal found 14/8C$ 664
Mon 7/96:45 a.m. -
1 stop24h 00m
Tue 15/98:25 a.m. -
Nonstop7h 15m
Deal found 13/8C$ 665

Find flight deals from Montreal to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Montreal (YMQ) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 August 2026.

Round-trip from

C$ 646

One-way from

C$ 347

Popular in

December

Cheapest in

January

Average price

C$ 951

Good round-trip deal

C$ 762 or less

Good one-way deal

C$ 374 or less
Air Transat
  • Air Transat
  • 9/9-11/9
  • 1 total stop
  • 17h 35m total
  • Montreal to Porto
Search Deals
12/10
  • 12/10
  • 1 total stop
  • 10h 35m total
  • Montreal to Porto
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 49 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Montreal (YMQ) to Porto.
Search Deals
Price to beat on a one-way flight from Montreal (YMQ) to Porto.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montreal to Porto 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 15 August 2026.
Use the filters below to find and compare flights from Montreal to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealPorto

YUL Montreal Pierre Elliott Trudeau Intl - OPO Porto

YULOPO

Montreal Pierre Elliott Trudeau Intl

Thu 10/9

8:35 p.m.-11:45 a.m.

1 stop10h 10m

Porto

Wed 16/9

8:25 a.m.-10:40 a.m.

Nonstop7h 15m

C$ 654
Quickest round-trip

MontrealPorto

YUL Montreal Pierre Elliott Trudeau Intl - OPO Porto

YULOPO

Montreal Pierre Elliott Trudeau Intl

Tue 15/9

7:25 p.m.-6:45 a.m.

Nonstop6h 20m

Porto

Tue 22/9

8:25 a.m.-10:40 a.m.

Nonstop7h 15m

C$ 703

MontrealPorto

YUL Montreal Pierre Elliott Trudeau Intl - OPO Porto

YULOPO

Montreal Pierre Elliott Trudeau Intl

Tue 13/10

6:35 p.m.-5:35 p.m.

2 stops18h 00m

Porto

Wed 21/10

6:45 p.m.-3:00 p.m.

1 stop25h 15m

C$ 718

MontrealPorto

YUL Montreal Pierre Elliott Trudeau Intl - OPO Porto

YULOPO

Montreal Pierre Elliott Trudeau Intl

Wed 11/11

7:05 p.m.-10:35 a.m.

1 stop10h 30m

Porto

Wed 18/11

5:00 a.m.-5:15 p.m.

1 stop17h 15m

C$ 770

MontrealPorto

YUL Montreal Pierre Elliott Trudeau Intl - OPO Porto

YULOPO

Montreal Pierre Elliott Trudeau Intl

Thu 8/10

4:40 p.m.-1:45 p.m.

2 stops16h 05m

Porto

Wed 14/10

7:50 p.m.-3:00 p.m.

2 stops24h 10m

C$ 783

MontrealPorto

YUL Montreal Pierre Elliott Trudeau Intl - OPO Porto

YULOPO

Montreal Pierre Elliott Trudeau Intl

Mon 8/2

7:05 p.m.-10:35 a.m.

1 stop10h 30m

Porto

Sat 20/2

5:00 a.m.-11:10 p.m.

2 stops23h 10m

C$ 839

MontrealPorto

YUL Montreal Pierre Elliott Trudeau Intl - OPO Porto

YULOPO

Montreal Pierre Elliott Trudeau Intl

Tue 25/8

1:50 p.m.-9:45 a.m.

2 stops14h 55m

Porto

Tue 1/9

12:35 p.m.-8:12 p.m.

1 stop12h 37m

C$ 840

MontrealPorto

YUL Montreal Pierre Elliott Trudeau Intl - OPO Porto

YULOPO

Montreal Pierre Elliott Trudeau Intl

Sun 11/10

7:00 a.m.-10:25 a.m.

2 stops22h 25m

Porto

Tue 20/10

4:25 p.m.-4:55 p.m.

2 stops29h 30m

C$ 845

MontrealPorto

YUL Montreal Pierre Elliott Trudeau Intl - OPO Porto

YULOPO

Montreal Pierre Elliott Trudeau Intl

Sat 29/8

8:00 p.m.-6:55 a.m.

2 stops29h 55m

Porto

Sat 5/9

12:35 p.m.-11:27 a.m.

2 stops27h 52m

C$ 865

MontrealPorto

YUL Montreal Pierre Elliott Trudeau Intl - OPO Porto

YULOPO

Montreal Pierre Elliott Trudeau Intl

Mon 28/9

5:00 p.m.-3:30 p.m.

2 stops17h 30m

Porto

Mon 26/10

6:25 a.m.-4:20 p.m.

1 stop13h 55m

C$ 878

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/8

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

Have a flexible travel schedule? Discover the best time to fly to Porto 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.

Cheapflights Insights

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

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

Currently, January is the cheapest month in which you can book a flight from Montreal to Porto (average of C$ 674). Flying from Montreal to Porto in December is currently the most expensive (average of C$ 1,196). 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 OPO?

Find hourly flight availability from Montreal to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 August 2026.

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

How much does it cost to fly round-trip from Montreal to Porto?

Airfare is below average for this route at the moment.
Montreal to Porto flights typically cost between C$ 796 and C$ 1,081 in September.
The cheapest round-trip price found within the last 5 days was C$ 646 on Air Transat (9 Sep-11 Sep).

What’s the top layover airport for flights from Montreal to Porto?

Share of one-stop round-trip flights from Montreal to Porto chosen by Cheapflights users in the past 12 months, using the same layover each way.

Lisbon (LIS) – chosen by Cheapflights users on 43% of one-stop itineraries from Montreal to Porto on Cheapflights.

What’s the cheapest layover airport for flights from Montreal to Porto?

Average round-trip fare for 1-stop flights from Montreal to Porto, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Ponta Delgada (PDL) is the most affordable 1-stop option, with an average round-trip price of C$ 690.

What’s the fastest layover option from Montreal to Porto?

Shortest average travel time for 1-stop one-way flights from Montreal to Porto, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Ponta Delgada (PDL) have the shortest average one-way travel time for 1-stop routes: 9h 35m.

Which airport typically offers the quickest layover for flights from Montreal to Porto?

Average layover duration for 1-stop one-way flights from Montreal to Porto, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Toronto (YYZ) offer the fastest connection on this route, with an average layover time of 2h 08m.

How often are flights from Montreal to Porto delayed?

About 34% of weekly flights between Montreal and Porto have experienced delays in the past year, with the average delay time being 135 minutes.

What is the most punctual flight time for Montreal to Porto flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Montreal to Porto flights?

Over the past year, Air Canada has had the lowest number of delays on this route, with just 30% of flights being delayed.

How far ahead should I book a flight from Montreal to Porto?

To ensure you get the cheapest price possible for a flight from Montreal to Porto, you should look to book at least 76 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated 15 August 2026.
Read reviews from past customers who have flown Porter Airlines,Air Transat, andTAP AIR PORTUGAL from Montreal to Porto. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
456 reviews
Check prices

Boarding

8.2

Comfort

8.0

Entertainment

6.9

Food

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
Porter Airlines
8.0
Very good
456 reviews
Porter Airlines
8.0
Very good
456 reviews
Check prices

Boarding

8.2

Comfort

8.0

Entertainment

6.9

Food

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
Air Transat
7.8
Good
572 reviews
Porter Airlines
8.0
Very good
456 reviews
Check prices

Boarding

8.2

Comfort

8.0

Entertainment

6.9

Food

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
TAP AIR PORTUGAL
7.2
Good
2,368 reviews
Porter Airlines
8.0
Very good
456 reviews
Check prices

Boarding

8.2

Comfort

8.0

Entertainment

6.9

Food

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
Air Canada
7.1
Good
11,478 reviews
Porter Airlines
8.0
Very good
456 reviews
Check prices

Boarding

8.2

Comfort

8.0

Entertainment

6.9

Food

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
Lufthansa
6.8
Okay
8,194 reviews
Porter Airlines
8.0
Very good
456 reviews
Check prices

Boarding

8.2

Comfort

8.0

Entertainment

6.9

Food

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

Related info for your journey

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

  • What airport do you fly into for flights to Porto from Montreal?

    If you book a flight to Porto from Montreal, you will be flying to Porto, which is the city’s only airport. Porto (OPO) is located 10.9 km from the centre of Porto. There are 2 flights from Montreal to Porto per day from 8 different airlines.

  • How long is the flight from Montreal to Porto?

    Air Transat, SWISS, and Delta can get you from Montreal to Porto in just under 10h 10m. Your travel time can differ by up to 7h 50m. The distance between Montreal and Porto is about 5132 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Montreal to Porto round-trip?

    Cheapflights users have booked flights from Montreal to Porto round-trip from C$ 429. Other airlines that can offer you cheap pricing are TAP AIR PORTUGAL, from C$ 643, and Azores Airlines, from C$ 699. American Airlines is 53% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Montreal to Porto one-way?

    One-way options have recently been found by users for as low as C$ 347 on Air Transat. Other airlines that offer cheap prices include Porter Airlines from C$ 368 and Azores Airlines from C$ 384 one-way.

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

    Consider Air Canada (43%), United Airlines (43%) or Lufthansa (43%) when booking your flight. These represent the most reliable airlines when flying from Montreal to Porto.

  • What are the cheapest flights from Montreal to Porto?

    On average you can expect to pay C$ 676 for a flight from Montreal to Porto. The cheapest flight overall is C$ 368 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - Porto) is currently priced at C$ 581.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Montreal to Porto (average of C$ 674). Flying from Montreal to Porto in December is currently the most expensive (average of C$ 1,196). 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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Fly from Montreal to Porto on these airlines

Choose from the following airlines for your flight from Montreal to Porto. Flights are based on user searches made on Cheapflights and were last updated on 15 August 2026.
Air Transat flights from Montreal to Porto
Air Canada flights from Montreal to Porto
TAP AIR PORTUGAL flights from Montreal to Porto

Top 8 airlines flying from Montreal to Porto

Discover the top 8 airlines that operate flights from Montreal to Porto. 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 15 August 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 429AverageC$ 430FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
TAP AIR PORTUGALCheapestC$ 630AverageC$ 847FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Azores AirlinesCheapestC$ 699AverageC$ 889FlexibilityNo cancel feeOn-time74%
Search Azores Airlines flights
Air TransatCheapestC$ 714AverageC$ 901FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapestC$ 739AverageC$ 969FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 780AverageC$ 1,055FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Porter AirlinesCheapestC$ 810AverageC$ 930FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 824AverageC$ 855FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Montreal to Porto. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Montreal to Porto?

Cheapflights helps you find that perfect flight to Porto from Montreal 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 Montreal to Porto with no change fees?

Need flexible booking options for your flight to Porto from Montreal? 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 Montreal to Porto become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Porto from Montreal today and book when prices fit your budget.

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