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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Porto from C$ 336

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 24/8. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — OPO
26 Aug — 2 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to Porto are usually found in March or January, booked 75 days in advance, depart on a Sunday or Wednesday and return on a Thursday

Cheap flight deals from Pierre Elliott Trudeau Intl to Porto

Enter your travel dates to find the best prices.

Cheapest flights from Pierre Elliott Trudeau Intl to Porto
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 July 2026.

Tue 18/87:25 p.m.
YUL
-
OPO
Nonstop6h 20m
Air Transat
Wed 2/98:25 a.m.
OPO
-
YUL
Nonstop7h 15m
Air Transat
Deal found 23/7C$ 746
Mon 17/86:45 a.m.
YUL
-
OPO
1 stop24h 00m
Air Transat
Wed 2/98:25 a.m.
OPO
-
YUL
Nonstop7h 15m
Air Transat
Deal found 26/7C$ 747
Thu 27/86:00 p.m.
YUL
-
OPO
1 stop12h 45m
Air Transat
Wed 9/98:25 a.m.
OPO
-
YUL
Nonstop7h 15m
Air Transat
Deal found 27/7C$ 749
Tue 25/87:25 p.m.
YUL
-
OPO
Nonstop6h 20m
Porter Airlines
Tue 8/91:30 p.m.
OPO
-
YUL
1 stop16h 07m
Porter Airlines
Deal found 25/7C$ 750
Sat 15/87:25 p.m.
YUL
-
OPO
Nonstop6h 20m
Air Transat
Fri 4/98:25 a.m.
OPO
-
YUL
Nonstop7h 15m
Air Transat
Deal found 23/7C$ 752
Wed 23/94:40 p.m.
YUL
-
OPO
1 stop20h 50m
SWISS
Fri 9/107:55 p.m.
OPO
-
YUL
2 stops48h 05m
SWISS
Deal found 25/7C$ 754
Thu 3/95:00 p.m.
YUL
-
OPO
1 stop13h 45m
Porter Airlines
Fri 11/98:25 a.m.
OPO
-
YUL
Nonstop7h 15m
Porter Airlines
Deal found 27/7C$ 756
Mon 14/95:00 p.m.
YUL
-
OPO
1 stop13h 45m
Porter Airlines
Fri 25/98:25 a.m.
OPO
-
YUL
Nonstop7h 15m
Porter Airlines
Deal found 25/7C$ 757
Fri 28/88:35 p.m.
YUL
-
OPO
1 stop10h 10m
Air Transat
Wed 9/98:25 a.m.
OPO
-
YUL
Nonstop7h 15m
Air Transat
Deal found 22/7C$ 760
Wed 19/88:35 p.m.
YUL
-
OPO
1 stop10h 20m
Air Transat
Wed 2/98:25 a.m.
OPO
-
YUL
Nonstop7h 15m
Air Transat
Deal found 23/7C$ 763

Find flight deals from Pierre Elliott Trudeau Intl to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) 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 27 July 2026.

Round-trip from

C$ 746

One-way from

C$ 336

Popular in

December

Cheapest in

March

Average price

C$ 996

Good round-trip deal

C$ 789 or less

Good one-way deal

C$ 460 or less
Air Transat
  • Air Transat
  • 18/8-2/9
  • Nonstop
  • 13h 35m total
  • Montreal to Porto
Search Deals
24/8
  • 24/8
  • 1 total stop
  • 14h 40m total
  • Montreal to Porto
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Montreal Pierre Elliott Trudeau Intl to Porto.
Search Deals
Price to beat on a one-way flight from Montreal Pierre Elliott Trudeau Intl to Porto.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl 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 27 July 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Tue 18/8

8:40 a.m.-6:15 a.m.

2 stops16h 35m

Porto

Tue 25/8

9:00 a.m.-7:45 p.m.

2 stops15h 45m

C$ 849

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Wed 5/8

11:23 a.m.-6:55 a.m.

1 stop14h 32m

Porto

Thu 13/8

9:00 a.m.-10:06 p.m.

1 stop18h 06m

C$ 849

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Sun 2/8

6:00 a.m.-9:45 a.m.

1 stop22h 45m

Porto

Fri 14/8

9:00 a.m.-10:06 p.m.

1 stop18h 06m

C$ 874
Quickest round-trip

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Tue 22/9

7:00 p.m.-3:25 p.m.

1 stop15h 25m

Porto

Tue 13/10

6:15 a.m.-4:55 p.m.

2 stops15h 40m

C$ 905

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Mon 14/9

3:25 p.m.-6:55 a.m.

1 stop10h 30m

Porto

Wed 23/9

6:00 a.m.-10:06 p.m.

2 stops21h 06m

C$ 912

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Mon 14/9

7:55 a.m.-6:55 a.m.

1 stop18h 00m

Porto

Sun 27/9

6:00 a.m.-11:23 a.m.

2 stops34h 23m

C$ 912

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Sun 16/8

9:00 p.m.-10:00 p.m.

1 stop20h 00m

Porto

Sun 23/8

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

2 stops29h 30m

C$ 924

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Tue 8/9

3:25 p.m.-6:15 a.m.

1 stop9h 50m

Porto

Wed 23/9

6:00 a.m.-7:34 a.m.

2 stops30h 34m

C$ 942

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Sat 1/8

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

2 stops29h 55m

Porto

Thu 6/8

9:00 a.m.-10:06 p.m.

1 stop18h 06m

C$ 975

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Sun 16/8

9:45 a.m.-6:55 a.m.

2 stops40h 10m

Porto

Wed 26/8

12:35 p.m.-7:47 a.m.

2 stops24h 12m

C$ 975

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/7

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Best time to book a flight from Pierre Elliott Trudeau Intl to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl Airport to Porto

How far ahead should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Porto?

The price you pay for your flight from Montreal Pierre Elliott Trudeau Intl Airport to Porto may vary depending on when you book. For the best chance of a lower fare, look to book 74 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Porto?

Currently, March is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Porto (average of C$ 698). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Porto in December is currently the most expensive (average of C$ 1,118). 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 YUL to OPO?

Find hourly flight availability from Pierre Elliott Trudeau Intl 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 27 July 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Montreal Pierre Elliott Trudeau Intl Airport to Porto as you normally would.

How much does it cost to fly round-trip from Montreal Pierre Elliott Trudeau Intl Airport to Porto?

Airfare is below average for this route at the moment.

Montreal Pierre Elliott Trudeau Intl Airport to Porto flights typically cost between C$ 867 and C$ 1,138 in August.
The cheapest round-trip price found within the last 5 days was C$ 746 on Air Transat (18 Aug-2 Sep).

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 27 July 2026.
Get a feel of what it's like to fly with Porter Airlines,Air Transat, andAzores Airlines from Montreal Pierre Elliott Trudeau Intl Airport to Porto by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
449 reviews
Check prices

Entertainment

6.9

Overall

8.0

Food

7.5

Comfort

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Porter Airlines
8.0
Very good
449 reviews
Porter Airlines
8.0
Very good
449 reviews
Check prices

Entertainment

6.9

Overall

8.0

Food

7.5

Comfort

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Air Transat
7.8
Good
568 reviews
Porter Airlines
8.0
Very good
449 reviews
Check prices

Entertainment

6.9

Overall

8.0

Food

7.5

Comfort

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Azores Airlines
7.2
Good
106 reviews
Porter Airlines
8.0
Very good
449 reviews
Check prices

Entertainment

6.9

Overall

8.0

Food

7.5

Comfort

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Air Canada
7.1
Good
11,393 reviews
Porter Airlines
8.0
Very good
449 reviews
Check prices

Entertainment

6.9

Overall

8.0

Food

7.5

Comfort

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Lufthansa
6.8
Okay
8,161 reviews
Porter Airlines
8.0
Very good
449 reviews
Check prices

Entertainment

6.9

Overall

8.0

Food

7.5

Comfort

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl?

    Porto (OPO), located 10.9 km from the city centre, is the airport you fly into when you book flights from Montreal Pierre Elliott Trudeau Intl to Porto. 9 airlines have flights to Porto from Montreal Pierre Elliott Trudeau Intl on a regular basis. Booking flights from Montreal Pierre Elliott Trudeau Intl to Porto should not be difficult; the airport handles an average of 3 inbound flights from Montreal Pierre Elliott Trudeau Intl per day.

  • How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to Porto?

    There are many flights that can get you from Montreal Pierre Elliott Trudeau Intl Airport to Porto in 16h 35m. Fly via United Airlines to get the fastest option. There are 5132 km between Montreal Pierre Elliott Trudeau Intl Airport and Porto.

  • What are the cheapest airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to Porto round-trip?

    American Airlines, at C$ 435, was found to be the cheapest airline from Montreal Pierre Elliott Trudeau Intl Airport to Porto.Alternate airlines to your destination round-trip include TAP AIR PORTUGAL and Azores Airlines. American Airlines is priced at 50% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Montreal Pierre Elliott Trudeau Intl Airport to Porto one-way?

    C$ 352 is the cheapest one-way deal found within the past few days, from Air Transat. You may also be able to find cheap deals on Azores Airlines and Porter Airlines, with prices starting from C$ 390 and C$ 453, respectively.

  • What are the most reliable airlines from Montreal Pierre Elliott Trudeau Intl Airport to Porto?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Montreal Pierre Elliott Trudeau Intl Airport to Porto on time: Porter Airlines (42%), Air Transat (42%), Air Canada (39%).

  • What are the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to Porto?

    Looking for the cheapest flight from Montreal Pierre Elliott Trudeau Intl Airport to Porto? While on average our users pay C$ 705, our data indicates the cheapest price to be C$ 379. The most popular route (Montreal Pierre Elliott Trudeau Intl - Porto), is priced around C$ 611.

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to Porto that include hotel bookings?

    Yes. In addition to deals on Pierre Elliott Trudeau Intl to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pierre Elliott Trudeau Intl to Porto?

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

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Porto?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl Airport to Porto?

    Currently, March is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Porto (average of C$ 698). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Porto in December is currently the most expensive (average of C$ 1,118). 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 Pierre Elliott Trudeau Intl to Porto on these airlines

Choose from the following airlines for your flight from Pierre Elliott Trudeau Intl to Porto. Flights are based on user searches made on Cheapflights and were last updated on 27 July 2026.
Air Transat flights from Montreal Pierre Elliott Trudeau Intl to Porto
Air Canada flights from Montreal Pierre Elliott Trudeau Intl to Porto
TAP AIR PORTUGAL flights from Montreal Pierre Elliott Trudeau Intl to Porto

Top 9 airlines flying from Pierre Elliott Trudeau Intl to Porto

Discover the top 9 airlines that operate flights from Pierre Elliott Trudeau Intl 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 27 July 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 435AverageC$ 437FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
TAP AIR PORTUGALCheapestC$ 653AverageC$ 861FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Azores AirlinesCheapestC$ 710AverageC$ 902FlexibilityNo cancel feeOn-time74%
Search Azores Airlines flights
Air TransatCheapestC$ 735AverageC$ 919FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Porter AirlinesCheapestC$ 748AverageC$ 934FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 751AverageC$ 987FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
KLMCheapestC$ 759AverageC$ 817FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapestC$ 792AverageC$ 1,051FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapestC$ 837AverageC$ 868FlexibilityNo 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 Pierre Elliott Trudeau Intl to Porto?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Porto from Pierre Elliott Trudeau Intl today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Pierre Elliott Trudeau Intl to Porto?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Porto from Pierre Elliott Trudeau Intl.

Can Cheapflights find flights from Pierre Elliott Trudeau Intl to Porto with no change fees?

Yes, we can. To see specific flights from Pierre Elliott Trudeau Intl to Porto with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Pierre Elliott Trudeau Intl to Porto become cheaper?

Yes, Cheapflights offers price alerts on Pierre Elliott Trudeau Intl to Porto flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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