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Cheap flights from Ontario to Porto from C$ 391

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 18/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — OPO
5 Mar — 12 Mar1
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 3 February 2026.

Mon 23/39:10 p.m.
YUL
-
OPO
1 stop11h 40m
Multiple Airlines
Mon 30/310:10 a.m.
OPO
-
YUL
1 stop32h 40m
Multiple Airlines
Deal found 1/2C$ 649
Tue 7/48:40 p.m.
YUL
-
OPO
1 stop21h 45m
Multiple Airlines
Tue 14/412:15 p.m.
OPO
-
YUL
1 stop31h 45m
Multiple Airlines
Deal found 1/2C$ 660
Mon 2/37:45 p.m.
YYZ
-
OPO
1 stop12h 05m
Lufthansa
Thu 12/36:00 a.m.
OPO
-
YYZ
1 stop18h 50m
Lufthansa
Deal found 1/2C$ 662
Thu 19/27:45 p.m.
YYZ
-
OPO
1 stop12h 05m
Lufthansa
Wed 25/26:00 a.m.
OPO
-
YYZ
1 stop15h 15m
Lufthansa
Deal found 31/1C$ 664
Mon 9/28:10 p.m.
YUL
-
OPO
1 stop11h 40m
Lufthansa
Tue 17/21:45 p.m.
OPO
-
YUL
1 stop33h 35m
Lufthansa
Deal found 1/2C$ 666
Mon 6/48:40 p.m.
YUL
-
OPO
1 stop21h 45m
Multiple Airlines
Mon 20/47:20 p.m.
OPO
-
YUL
1 stop24h 40m
Multiple Airlines
Deal found 1/2C$ 688
Sun 12/48:45 p.m.
YYZ
-
OPO
1 stop13h 15m
Multiple Airlines
Wed 22/45:55 p.m.
OPO
-
YYZ
1 stop25h 20m
Multiple Airlines
Deal found 2/2C$ 691
Mon 2/37:45 p.m.
YYZ
-
OPO
1 stop12h 05m
Multiple Airlines
Thu 12/36:00 a.m.
OPO
-
YYZ
1 stop18h 50m
Multiple Airlines
Deal found 31/1C$ 695
Tue 10/24:45 p.m.
YUL
-
OPO
1 stop13h 30m
Multiple Airlines
Wed 18/212:10 p.m.
OPO
-
YUL
1 stop32h 00m
Multiple Airlines
Deal found 1/2C$ 696
Mon 6/48:40 p.m.
YUL
-
OPO
1 stop21h 45m
Multiple Airlines
Sun 19/46:35 p.m.
OPO
-
YUL
1 stop24h 15m
Multiple Airlines
Deal found 1/2C$ 703
Sun 22/29:30 a.m.
YYZ
-
OPO
1 stop19h 00m
Multiple Airlines
Mon 2/37:20 p.m.
OPO
-
YYZ
1 stop25h 30m
Multiple Airlines
Deal found 1/2C$ 706
Mon 6/48:40 p.m.
YUL
-
OPO
1 stop21h 45m
Lufthansa
Wed 15/411:05 a.m.
OPO
-
YUL
1 stop12h 45m
Lufthansa
Deal found 1/2C$ 707

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 3 February 2026.

Round-trip from

C$ 649

One-way from

C$ 391

Popular in

December

Cheapest in

January

Average price

C$ 765

Good round-trip deal

C$ 875 or less

Good one-way deal

C$ 467 or less
Austrian Airlines
  • Austrian Airlines
  • 23/3-30/3
  • 2 total stops
  • 44h 20m total
  • Ontario to Porto
Search Deals
18/3
  • 18/3
  • 1 total stop
  • 11h 15m total
  • Ontario to Porto
Search Deals
High demand for flights, 5% 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 February 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 3 February 2026.
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

TorontoPorto

YTZ - OPO

YTZOPO

Toronto Island

Sun 22/2

12:30 p.m.-9:30 a.m.

2 stops16h 00m

Porto

Mon 2/3

12:35 p.m.-7:53 a.m.

2 stops24h 18m

C$ 720

TorontoPorto

YYZ - OPO

YYZOPO

Toronto Pearson Intl

Mon 4/5

11:55 p.m.-11:45 a.m.

Nonstop6h 50m

Porto

Tue 12/5

1:30 p.m.-4:25 p.m.

Nonstop7h 55m

C$ 722

TorontoPorto

YYZ - OPO

YYZOPO

Toronto Pearson Intl

Fri 24/4

8:10 p.m.-8:05 a.m.

Nonstop6h 55m

Porto

Sat 9/5

1:30 p.m.-4:25 p.m.

Nonstop7h 55m

C$ 722

TorontoPorto

YYZ - OPO

YYZOPO

Toronto Pearson Intl

Sun 3/5

11:55 p.m.-11:45 a.m.

Nonstop6h 50m

Porto

Thu 21/5

1:30 p.m.-4:25 p.m.

Nonstop7h 55m

C$ 722

TorontoPorto

YYZ - OPO

YYZOPO

Toronto Pearson Intl

Sun 3/5

11:55 p.m.-11:45 a.m.

Nonstop6h 50m

Porto

Thu 7/5

1:30 p.m.-4:25 p.m.

Nonstop7h 55m

C$ 722

TorontoPorto

YYZ - OPO

YYZOPO

Toronto Pearson Intl

Sun 10/5

11:55 p.m.-11:45 a.m.

Nonstop6h 50m

Porto

Tue 19/5

1:30 p.m.-4:25 p.m.

Nonstop7h 55m

C$ 722

TorontoPorto

YYZ - OPO

YYZOPO

Toronto Pearson Intl

Sun 3/5

11:55 p.m.-11:45 a.m.

Nonstop6h 50m

Porto

Fri 8/5

8:25 a.m.-4:38 p.m.

1 stop13h 13m

C$ 727

TorontoPorto

YTZ - OPO

YTZOPO

Toronto Island

Tue 3/3

8:50 a.m.-9:30 a.m.

2 stops19h 40m

Porto

Tue 10/3

12:35 p.m.-7:53 a.m.

2 stops23h 18m

C$ 728

TorontoPorto

YYZ - OPO

YYZOPO

Toronto Pearson Intl

Mon 23/2

6:40 p.m.-9:30 a.m.

1 stop9h 50m

Porto

Fri 27/2

12:45 p.m.-8:42 p.m.

1 stop12h 57m

C$ 732

TorontoPorto

YYZ - OPO

YYZOPO

Toronto Pearson Intl

Sun 22/2

6:40 p.m.-9:30 a.m.

2 stops33h 50m

Porto

Fri 27/2

12:45 p.m.-12:40 p.m.

2 stops28h 55m

C$ 732

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/2

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, October is the cheapest month in which you can book a flight from Region of Ontario to Porto (average of C$ 452). Flying from Region of Ontario to Porto in July is currently the most expensive (average of C$ 844). 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 3 February 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.

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 6h 50m. There are 5638 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$ 305. 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 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$ 781, our data indicates the cheapest price to be C$ 458. The most popular route (Montreal Pierre Elliott Trudeau Intl - Porto), is priced around C$ 660.

  • 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, October is the cheapest month in which you can book a flight from Region of Ontario to Porto (average of C$ 452). Flying from Region of Ontario to Porto in July is currently the most expensive (average of C$ 844). 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

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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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Thunder Bay to Lisbon flights
Victoria to Lisbon flights
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Top 10 airlines flying from Ontario to Porto

Discover the top 10 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 3 February 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapestC$ 411AverageC$ 542FlexibilityNo cancel feeOn-time77%
Search Iberia flights
American AirlinesCheapestC$ 452AverageC$ 453FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
TAP AIR PORTUGALCheapestC$ 585AverageC$ 816FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
LufthansaCheapestC$ 636AverageC$ 1,052FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Porter AirlinesCheapestC$ 661AverageC$ 998FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 678AverageC$ 1,031FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapestC$ 732AverageC$ 1,008FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Azores AirlinesCheapestC$ 740AverageC$ 1,027FlexibilityNo cancel feeOn-time74%
Search Azores Airlines flights
KLMCheapestC$ 757AverageC$ 897FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapestC$ 916AverageC$ 937FlexibilityNo 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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