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Cheap flights from Ontario to Porto from C$ 332

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — OPO
14 Sep — 21 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Porto

Enter your travel dates to find the best prices.

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 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
Tue 6/107:20 p.m. -
Nonstop6h 40m
Wed 14/106:45 p.m. -
1 stop25h 15m
Deal found 10/8C$ 653
Wed 9/98:35 p.m. -
1 stop10h 20m
Wed 16/98:25 a.m. -
Nonstop7h 15m
Deal found 13/8C$ 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
Wed 7/104:40 p.m. -
1 stop20h 50m
Thu 15/1011:40 a.m. -
Nonstop7h 50m
Deal found 10/8C$ 658
Tue 13/107:25 p.m. -
Nonstop6h 20m
Fri 16/108:25 a.m. -
Nonstop7h 15m
Deal found 11/8C$ 660
Mon 21/98:35 p.m. -
1 stop10h 10m
Fri 2/108:25 a.m. -
Nonstop7h 15m
Deal found 10/8C$ 661
Tue 8/97:25 p.m. -
Nonstop6h 20m
Tue 15/98:25 a.m. -
Nonstop7h 15m
Deal found 11/8C$ 663
Wed 14/105:50 p.m. -
1 stop8h 10m
Tue 20/1011:15 a.m. -
2 stops13h 37m
Deal found 11/8C$ 708

Find 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 August 2026.

Round-trip from

C$ 646

One-way from

C$ 332

Popular in

December

Cheapest in

February

Average price

C$ 1,174

Good round-trip deal

C$ 884 or less

Good one-way deal

C$ 467 or less
Air Transat
  • Air Transat
  • 9/9-11/9
  • 1 total stop
  • 17h 35m total
  • Ontario to Porto
Search Deals
15/9
  • 15/9
  • 2 total stops
  • 20h 05m total
  • Ontario to Porto
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 57 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 Ontario to Porto.
Search Deals
Price to beat on a one-way flight from Ontario to Porto.
Search Deals

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 August 2026.
Use the filters below to find and compare flights from Ontario 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

Thu 8/10

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

2 stops16h 05m

Porto

Wed 21/10

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

1 stop25h 15m

C$ 728

OttawaPorto

YOW Ottawa - OPO Porto

YOWOPO

Ottawa

Mon 28/9

2:45 p.m.-7:00 a.m.

1 stop11h 15m

Porto

Wed 7/10

11:20 a.m.-8:50 p.m.

1 stop14h 30m

C$ 746

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

Wed 7/10

7:20 p.m.-7:00 a.m.

Nonstop6h 40m

Porto

Wed 14/10

11:20 a.m.-2:10 p.m.

Nonstop7h 50m

C$ 807

MontrealPorto

YUL Montreal Pierre Elliott Trudeau Intl - OPO Porto

YULOPO

Montreal Pierre Elliott Trudeau Intl

Wed 26/8

8:35 p.m.-11:55 a.m.

1 stop10h 20m

Porto

Sat 12/9

7:35 a.m.-4:05 p.m.

1 stop13h 30m

C$ 810

HamiltonPorto

YHM Hamilton - OPO Porto

YHMOPO

Hamilton

Mon 14/9

8:35 a.m.-12:20 p.m.

2 stops22h 45m

Porto

Tue 22/9

6:15 a.m.-10:25 p.m.

3 stops21h 10m

C$ 813

TorontoPorto

YTZ Toronto Island - OPO Porto

YTZOPO

Toronto Island

Tue 6/10

7:00 a.m.-6:45 a.m.

1 stop18h 45m

Porto

Wed 14/10

8:25 a.m.-8:11 p.m.

1 stop16h 46m

C$ 829

MontrealPorto

YUL Montreal Pierre Elliott Trudeau Intl - OPO Porto

YULOPO

Montreal Pierre Elliott Trudeau Intl

Sun 13/9

8:40 p.m.-11:25 p.m.

1 stop21h 45m

Porto

Sat 19/9

12:20 p.m.-2:25 p.m.

Nonstop7h 05m

C$ 829

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/8

Showing 1-10 of 60 resultsSorted by cheapest first
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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, November is the cheapest month in which you can book a flight from Region of Ontario to Porto (average of C$ 776). Flying from Region of Ontario to Porto in December is currently the most expensive (average of C$ 1,274). 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 August 2026.

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?

Airfare is below average for this route at the moment.
Region of Ontario to Porto flights typically cost between C$ 895 and C$ 1,206 in October.
The cheapest round-trip price found within the last 5 days was C$ 826 on Multiple Airlines (8 Oct-20 Oct).

How far ahead should I book a flight from Region of Ontario to Porto?

The best time to book flights from Region of Ontario to Porto is 86 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 10h 10m. 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$ 309. However, be on the lookout for offers from Porter Airlines and Air Transat, 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 Montreal Pierre Elliott Trudeau Intl - Porto, Toronto Pearson 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$ 778, our data indicates the cheapest price to be C$ 453. The most popular route (Montreal Pierre Elliott Trudeau Intl - Porto), is priced around C$ 581.

  • 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, November is the cheapest month in which you can book a flight from Region of Ontario to Porto (average of C$ 776). Flying from Region of Ontario to Porto in December is currently the most expensive (average of C$ 1,274). 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

Browse thousands of different options on Cheapflights for your next trip

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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 August 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapestC$ 418AverageC$ 551FlexibilityNo cancel feeOn-time77%
Search Iberia flights
TAP AIR PORTUGALCheapestC$ 583AverageC$ 865FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air TransatCheapestC$ 696AverageC$ 1,018FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapestC$ 739AverageC$ 1,061FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 742AverageC$ 1,111FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Porter AirlinesCheapestC$ 745AverageC$ 1,023FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
KLMCheapestC$ 746AverageC$ 858FlexibilityNo cancel feeOn-time75%
Search KLM flights
Azores AirlinesCheapestC$ 760AverageC$ 947FlexibilityNo cancel feeOn-time74%
Search Azores Airlines flights
United AirlinesCheapestC$ 951AverageC$ 963FlexibilityNo 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 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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