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Cheap flights from Ontario to Porto from C$ 344

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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — OPO
15 Oct — 22 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Ontario to Porto

Keep the following information in mind while searching for Ontario to Porto flight deals. Data was last updated 15 September 2025.

Round-trip from

C$ 740

One-way from

C$ 344

Popular in

December

Cheapest in

January

Average price

C$ 928

Good round-trip deal

C$ 901 or less

Good one-way deal

C$ 529 or less
Delta
  • Delta
  • 20/1-6/2
  • 2 total stops
  • 28h 20m total
  • Ontario to Porto
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11/10
  • 11/10
  • 2 total stops
  • 17h 50m total
  • Ontario to Porto
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 3% potential price decrease (C$ 41 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Ontario to Porto.
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Price to beat on a one-way flight from Ontario to Porto.
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Find flight deals from Ontario to Porto

Cheapest flights from Ontario to Porto
Explore the most affordable flight options available from Ontario to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2025.

Mon 8/128:40 p.m.YUL - OPO
1 stop15h 00mBritish Airways
Sun 14/128:20 a.m.OPO - YUL
2 stops15h 25mBritish Airways
Deal found 14/9C$ 749
Sat 11/106:00 p.m.YUL - OPO
2 stops17h 50mMultiple Airlines
Mon 15/1212:40 p.m.OPO - YUL
1 stop12h 05mMultiple Airlines
Deal found 14/9C$ 752
Sat 11/106:00 p.m.YUL - OPO
2 stops17h 50mMultiple Airlines
Fri 12/1212:00 p.m.OPO - YUL
1 stop13h 15mMultiple Airlines
Deal found 14/9C$ 753
Sat 4/108:15 p.m.YUL - OPO
2 stops15h 35mMultiple Airlines
Sat 11/1012:35 p.m.OPO - YUL
1 stop12h 35mMultiple Airlines
Deal found 13/9C$ 758
Thu 6/117:05 p.m.YUL - OPO
1 stop10h 20mKLM
Tue 18/114:10 p.m.OPO - YUL
1 stop30h 10mKLM
Deal found 15/9C$ 760
Wed 1/107:00 p.m.YUL - OPO
1 stop32h 25mKLM
Mon 1/126:30 a.m.OPO - YUL
1 stop15h 50mKLM
Deal found 14/9C$ 763
Thu 6/118:40 p.m.YUL - OPO
2 stops42h 20mBritish Airways
Mon 17/118:40 p.m.OPO - YUL
2 stops51h 05mBritish Airways
Deal found 13/9C$ 767
Tue 7/106:50 p.m.YUL - OPO
1 stop10h 50mKLM
Sun 14/124:10 p.m.OPO - YUL
1 stop30h 10mKLM
Deal found 14/9C$ 768
Mon 6/105:00 p.m.YUL - OPO
1 stop17h 30mDelta
Tue 16/1211:10 a.m.OPO - YUL
1 stop14h 40mDelta
Deal found 14/9C$ 769
Wed 5/117:10 p.m.YUL - OPO
1 stop22h 15mKLM
Sun 16/114:10 p.m.OPO - YUL
1 stop30h 10mKLM
Deal found 13/9C$ 774
Fri 7/114:45 p.m.YUL - OPO
1 stop13h 25mMultiple Airlines
Wed 12/1112:10 p.m.OPO - YUL
1 stop32h 00mMultiple Airlines
Deal found 14/9C$ 775
Tue 7/106:50 p.m.YUL - OPO
1 stop10h 50mDelta
Sat 13/1211:25 a.m.OPO - YUL
1 stop14h 25mDelta
Deal found 14/9C$ 776

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario 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 September 2025.
Use the filters below to find and compare flights from Ontario to Porto that are best for you.

Fly from

Ontario

Fly to

Porto

Route

Depart

Return

Price

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Sat 14/2

5:00 p.m.-10:30 a.m.

1 stop12h 30m

Porto

Thu 19/2

4:10 p.m.-5:20 p.m.

1 stop30h 10m

C$ 740

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Tue 20/1

5:00 p.m.-10:30 a.m.

1 stop12h 30m

Porto

Fri 6/2

6:30 a.m.-5:20 p.m.

1 stop15h 50m

C$ 740

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Sun 8/2

7:05 p.m.-10:30 a.m.

1 stop10h 25m

Porto

Sun 15/3

4:10 p.m.-6:20 p.m.

1 stop30h 10m

C$ 740

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Mon 19/1

5:00 p.m.-10:15 a.m.

1 stop12h 15m

Porto

Wed 4/2

6:00 a.m.-5:20 p.m.

1 stop16h 20m

C$ 740

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Mon 8/12

8:40 p.m.-4:40 p.m.

1 stop15h 00m

Porto

Mon 15/12

8:40 p.m.-6:45 p.m.

2 stops27h 05m

C$ 749

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Sat 22/11

5:00 p.m.-10:30 a.m.

1 stop12h 30m

Porto

Fri 28/11

6:30 a.m.-5:20 p.m.

1 stop15h 50m

C$ 760

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Mon 24/11

5:00 p.m.-10:15 a.m.

1 stop12h 15m

Porto

Mon 1/12

6:30 a.m.-5:20 p.m.

1 stop15h 50m

C$ 760

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Wed 1/10

7:00 p.m.-8:25 a.m.

1 stop32h 25m

Porto

Mon 1/12

6:30 a.m.-5:20 p.m.

1 stop15h 50m

C$ 763

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Tue 7/10

6:50 p.m.-10:40 a.m.

1 stop10h 50m

Porto

Sun 14/12

4:10 p.m.-5:20 p.m.

1 stop30h 10m

C$ 768

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Wed 8/10

6:50 p.m.-10:15 p.m.

1 stop22h 25m

Porto

Sun 14/12

4:10 p.m.-5:20 p.m.

1 stop30h 10m

C$ 768

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/9

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to Porto

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

What is the cheapest month to book a flight from Region of Ontario to Porto?

Currently, January is the cheapest month in which you can book a flight from Region of Ontario to Porto (average of C$ 483). Flying from Region of Ontario to Porto in July is currently the most expensive (average of C$ 791). 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 ON to OPO?

Find hourly flight availability from Ontario 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 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Porto as you normally would.

How much does it cost to fly round-trip from Region of Ontario to Porto?

Related info for your journey

Find useful and relevant information for your journey from Ontario 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 Ontario?

    Most people fly into Porto (OPO) if they book a flight to Porto from Ontario. Porto is conveniently located just 10.9 km from Porto’s city centre.

  • How long is the flight from Region of Ontario to Porto?

    Departing from Region of Ontario to Porto will take you 12h 30m. There are 5132 km between Region of Ontario and Porto. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from Region of Ontario to Porto one-way?

    The cheapest airline one-way is Azores Airlines, with whom users have recently found tickets for as low as C$ 387. However, be on the lookout for offers from Air Transat and Porter Airlines, as they are both options that can get you from Region of Ontario to Porto for a low price.

  • What are the most popular routes from Region of Ontario to Porto?

    The most popular flight routes from Region of Ontario to Porto are Toronto Pearson Intl - Porto, Montreal Pierre Elliott Trudeau Intl - Porto and Toronto Island - Porto.

  • What are the cheapest flights from Region of Ontario to Porto?

    Looking for the cheapest flight from Region of Ontario to Porto? While on average our users pay C$ 806, our data indicates the cheapest price to be C$ 371. The most popular route (Toronto Pearson Intl - Porto), is priced around C$ 445.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario 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 Region of Ontario to Porto?

    Currently, January is the cheapest month in which you can book a flight from Region of Ontario to Porto (average of C$ 483). Flying from Region of Ontario to Porto in July is currently the most expensive (average of C$ 791). 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

Travelling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Aveiro
Esposende

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Alternative routes for Ontario to Porto

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

Discover the top 9 airlines that operate flights from Ontario 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 September 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapestC$ 416AverageC$ 559FlexibilityNo cancel feeOn-time77%
Search Iberia flights
American AirlinesCheapestC$ 457AverageC$ 458FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
TAP AIR PORTUGALCheapestC$ 581AverageC$ 814FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Porter AirlinesCheapestC$ 624AverageC$ 1,013FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
LufthansaCheapestC$ 644AverageC$ 1,064FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air TransatCheapestC$ 683AverageC$ 983FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Azores AirlinesCheapestC$ 715AverageC$ 939FlexibilityNo cancel feeOn-time74%
Search Azores Airlines flights
KLMCheapestC$ 797AverageC$ 1,238FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air CanadaCheapestC$ 842AverageC$ 1,181FlexibilityNo cancel feeOn-time67%
Search Air Canada 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 Ontario to Porto?

When you search for this flight from Ontario to Porto, 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 Ontario to Porto?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ontario to Porto.

Can Cheapflights find flights from Ontario to Porto with no change fees?

Need flexible booking options for your flight to Porto from Ontario? 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 Ontario to Porto 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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