Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Porto to Ontario from C$ 373

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 23/6. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — YYZ
13 Jul — 20 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Porto to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Porto to Ontario
Explore the most affordable flight options available from Porto to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2026.

Mon 22/611:15 a.m.
OPO
-
YUL
Nonstop7h 20m
Air Canada
Sun 28/67:20 p.m.
YUL
-
OPO
Nonstop6h 30m
Air Canada
Deal found 9/6C$ 639
Mon 22/66:00 a.m.
OPO
-
YUL
1 stop15h 00m
Lufthansa
Sun 28/67:20 p.m.
YUL
-
OPO
Nonstop6h 30m
Lufthansa
Deal found 9/6C$ 642
Thu 11/61:30 p.m.
OPO
-
YUL
1 stop32h 32m
Air Transat
Mon 15/65:10 p.m.
YUL
-
OPO
1 stop13h 35m
Air Transat
Deal found 11/6C$ 672
Wed 10/68:25 a.m.
OPO
-
YYZ
1 stop15h 13m
Air Transat
Tue 16/63:40 p.m.
YYZ
-
OPO
1 stop10h 05m
Air Transat
Deal found 9/6C$ 672
Tue 8/98:25 a.m.
OPO
-
YUL
Nonstop7h 15m
Air Transat
Sat 19/97:25 p.m.
YUL
-
OPO
Nonstop6h 20m
Air Transat
Deal found 12/6C$ 678
Wed 17/65:05 a.m.
OPO
-
YYZ
1 stop13h 55m
TAP AIR PORTUGAL
Sun 23/810:55 p.m.
YYZ
-
OPO
1 stop11h 20m
TAP AIR PORTUGAL
Deal found 12/6C$ 685
Fri 11/98:25 a.m.
OPO
-
YTZ
1 stop16h 50m
Air Transat
Mon 14/94:55 p.m.
YTZ
-
OPO
1 stop8h 50m
Air Transat
Deal found 12/6C$ 686
Mon 22/66:00 a.m.
OPO
-
YUL
1 stop15h 00m
Multiple Airlines
Sun 28/64:40 p.m.
YUL
-
OPO
1 stop20h 35m
Multiple Airlines
Deal found 8/6C$ 686
Tue 8/98:25 a.m.
OPO
-
YTZ
1 stop16h 50m
Air Transat
Sun 13/98:55 p.m.
YTZ
-
OPO
1 stop28h 50m
Air Transat
Deal found 12/6C$ 688
Thu 11/610:30 p.m.
OPO
-
YYZ
1 stop20h 45m
TAP AIR PORTUGAL
Mon 15/610:55 p.m.
YYZ
-
OPO
1 stop11h 05m
TAP AIR PORTUGAL
Deal found 11/6C$ 688
Tue 8/98:25 a.m.
OPO
-
YUL
Nonstop7h 15m
Air Transat
Sun 13/95:00 p.m.
YUL
-
OPO
1 stop13h 45m
Air Transat
Deal found 12/6C$ 689
Fri 11/98:25 a.m.
OPO
-
YTZ
1 stop10h 25m
Air Transat
Sun 13/98:55 p.m.
YTZ
-
OPO
1 stop28h 50m
Air Transat
Deal found 12/6C$ 691

Find flight deals from Porto to Ontario

Keep the following information in mind while searching for Porto to Ontario flight deals. Data was last updated 13 June 2026.

Round-trip from

C$ 639

One-way from

C$ 373

Popular in

August

Cheapest in

February

Average price

C$ 829

Good one-way deal

C$ 591 or less
Air Canada
  • Air Canada
  • 22/6-28/6
  • Nonstop
  • 13h 50m total
  • Porto to Ontario
Search Deals
23/6
  • 23/6
  • 1 total stop
  • 23h 20m total
  • Porto to Ontario
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 142 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a one-way flight from Porto to Ontario.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Porto to Ontario 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 13 June 2026.
Use the filters below to find and compare flights from Porto to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoToronto

OPO - YTZ

OPOYTZ

Porto

Fri 11/9

8:25 a.m.-1:50 p.m.

1 stop10h 25m

Toronto Island

Sun 13/9

8:55 p.m.-6:45 a.m.

1 stop28h 50m

C$ 691

PortoToronto

OPO - YTZ

OPOYTZ

Porto

Fri 11/9

8:25 a.m.-1:50 p.m.

1 stop10h 25m

Toronto Island

Fri 18/9

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

1 stop30h 50m

C$ 691

PortoToronto

OPO - YTZ

OPOYTZ

Porto

Tue 1/9

8:25 a.m.-1:50 p.m.

1 stop10h 25m

Toronto Island

Sun 27/9

8:55 p.m.-6:45 a.m.

1 stop28h 50m

C$ 691

PortoToronto

OPO - YYZ

OPOYYZ

Porto

Mon 21/9

7:00 a.m.-3:15 p.m.

1 stop13h 15m

Toronto Pearson Intl

Thu 1/10

11:45 p.m.-3:00 p.m.

1 stop10h 15m

C$ 706

PortoMontreal

OPO - YUL

OPOYUL

Porto

Sun 6/9

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

Nonstop7h 15m

Montreal Pierre Elliott Trudeau Intl

Sat 19/9

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

Nonstop6h 20m

C$ 734

PortoToronto

OPO - YTZ

OPOYTZ

Porto

Tue 8/9

8:25 a.m.-1:50 p.m.

1 stop10h 25m

Toronto Island

Tue 15/9

4:55 p.m.-6:45 a.m.

1 stop8h 50m

C$ 746

PortoMontreal

OPO - YUL

OPOYUL

Porto

Fri 26/6

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

2 stops21h 06m

Montreal Pierre Elliott Trudeau Intl

Wed 1/7

1:15 p.m.-6:55 a.m.

2 stops36h 40m

C$ 752

PortoToronto

OPO - YYZ

OPOYYZ

Porto

Fri 26/6

8:25 a.m.-6:38 p.m.

1 stop15h 13m

Toronto Pearson Intl

Sun 5/7

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

Nonstop6h 50m

C$ 755

PortoMontreal

OPO - YUL

OPOYUL

Porto

Fri 18/9

6:00 a.m.-6:32 a.m.

2 stops29h 32m

Montreal Pierre Elliott Trudeau Intl

Mon 21/9

4:40 p.m.-11:25 a.m.

1 stop13h 45m

C$ 765

PortoMontreal

OPO - YUL

OPOYUL

Porto

Tue 3/11

4:10 p.m.-5:15 p.m.

1 stop30h 05m

Montreal Pierre Elliott Trudeau Intl

Sun 8/11

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

1 stop12h 30m

C$ 773

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 56 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Porto to Ontario

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

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

Currently, April is the cheapest month in which you can book a flight from Porto to Region of Ontario (average of C$ 415). Flying from Porto to Region of Ontario in August is currently the most expensive (average of C$ 675). 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 OPO to ON?

Find hourly flight availability from Porto to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2026.

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

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

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

The price you pay for your flight from Porto to Region of Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 71 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated 13 June 2026.
Get a feel of what it's like to fly with Air Transat and Lufthansa from Porto to Ontario by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Transat
7.8
Good
555 reviews
Check prices

Overall

7.8

Comfort

7.3

Entertainment

7.1

Boarding

7.9

Crew

8.5

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Transat
7.8
Good
555 reviews
Air Transat
7.8
Good
555 reviews
Check prices

Overall

7.8

Comfort

7.3

Entertainment

7.1

Boarding

7.9

Crew

8.5

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Lufthansa
6.8
Okay
8,056 reviews
Air Transat
7.8
Good
555 reviews
Check prices

Overall

7.8

Comfort

7.3

Entertainment

7.1

Boarding

7.9

Crew

8.5

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.

Related info for your journey

Find useful and relevant information for your journey from Porto to Ontario. 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 from for flights from Porto to Ontario?

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

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

    For as low as C$ 691, Air Transat can have you in Region of Ontario from Porto in 10h 25m. Porto and Region of Ontario are separated by a distance of 5623 km. 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 Porto to Region of Ontario one-way?

    The cheapest airline one-way is Azores Airlines, with whom users have recently found tickets for as low as C$ 359. However, be on the lookout for offers from Air Transat and TAP AIR PORTUGAL, as they are both options that can get you from Porto to Region of Ontario for a low price.

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

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

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

    Looking at all options, your cheapest flight can be booked for C$ 429. While the most popular route (Porto - Toronto Pearson Intl) can be booked for C$ 685 on average, our data indicates C$ 626 when flying from Porto to Region of Ontario.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Porto to Region of Ontario (average of C$ 415). Flying from Porto to Region of Ontario in August is currently the most expensive (average of C$ 675). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Porto to Ontario

Discover the top 2 airlines that operate flights from Porto to Ontario. 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 13 June 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapestC$ 566AverageC$ 612FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air TransatCheapestC$ 614AverageC$ 853FlexibilityNo cancel feeOn-time50%
Search Air Transat 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 Porto to Ontario?

Cheapflights helps you search for flights from Porto to Ontario via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

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 Porto to Ontario.

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

Certainly. Search results for flights to Ontario from Porto shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Porto to Ontario become cheaper?

Not ready to book yet? You can track prices for flights from Porto to Ontario on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.