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Cheap flights from Ontario to Portugal from C$ 251

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 31/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LIS
18 Jul — 25 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Portugal

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Portugal
Explore the most affordable flight options available from Ontario to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 June 2026.

Wed 22/710:25 p.m.
YYZ
-
PDL
Nonstop5h 45m
WestJet
Sat 25/711:30 a.m.
PDL
-
YYZ
Nonstop6h 35m
WestJet
Deal found 13/6C$ 652
Sun 12/710:25 p.m.
YYZ
-
PDL
Nonstop5h 45m
WestJet
Tue 21/710:30 a.m.
PDL
-
YYZ
Nonstop6h 35m
WestJet
Deal found 13/6C$ 668
Sun 20/910:25 p.m.
YYZ
-
PDL
Nonstop5h 45m
Multiple Airlines
Thu 1/106:30 a.m.
PDL
-
YYZ
1 stop18h 55m
Multiple Airlines
Deal found 13/6C$ 687
Mon 21/911:20 p.m.
YYZ
-
PDL
Nonstop5h 45m
Multiple Airlines
Wed 30/97:30 p.m.
PDL
-
YYZ
1 stop29h 55m
Multiple Airlines
Deal found 15/6C$ 697
Sun 30/810:25 p.m.
YYZ
-
PDL
Nonstop5h 45m
Multiple Airlines
Tue 8/93:45 p.m.
PDL
-
YYZ
1 stop26h 15m
Multiple Airlines
Deal found 16/6C$ 703
Sun 30/810:25 p.m.
YYZ
-
PDL
Nonstop5h 45m
Multiple Airlines
Wed 9/97:30 p.m.
PDL
-
YYZ
1 stop29h 55m
Multiple Airlines
Deal found 14/6C$ 711
Mon 14/95:00 p.m.
YUL
-
LIS
1 stop11h 35m
Air Transat
Sun 27/911:35 a.m.
LIS
-
YUL
1 stop12h 45m
Air Transat
Deal found 18/6C$ 720
Sun 30/82:10 p.m.
YUL
-
LIS
1 stop15h 55m
Air Canada
Wed 9/96:15 a.m.
LIS
-
YUL
1 stop17h 35m
Air Canada
Deal found 17/6C$ 721
Thu 3/96:00 p.m.
YUL
-
LIS
1 stop10h 35m
Air Transat
Tue 15/98:15 a.m.
LIS
-
YUL
Nonstop7h 25m
Air Transat
Deal found 18/6C$ 722
Mon 21/911:20 p.m.
YYZ
-
PDL
Nonstop5h 45m
Multiple Airlines
Fri 2/106:30 a.m.
PDL
-
YYZ
1 stop12h 30m
Multiple Airlines
Deal found 13/6C$ 724
Thu 13/810:20 p.m.
YUL
-
LIS
1 stop11h 35m
Delta
Mon 12/1011:55 a.m.
LIS
-
YUL
1 stop34h 00m
Delta
Deal found 16/6C$ 724
Sun 13/95:00 p.m.
YUL
-
LIS
1 stop11h 35m
Air Transat
Sun 20/911:35 a.m.
LIS
-
YUL
1 stop12h 57m
Air Transat
Deal found 16/6C$ 725

Find flight deals from Ontario to Portugal

Keep the following information in mind while searching for Ontario to Portugal flight deals. Data was last updated 18 June 2026.

Round-trip from

C$ 652

One-way from

C$ 251

Popular in

July

Cheapest in

January

Average price

C$ 953

Good round-trip deal

C$ 541 or less

Good one-way deal

C$ 411 or less
WestJet
  • WestJet
  • 22/7-25/7
  • Nonstop
  • 12h 20m total
  • Ontario to Portugal
Search Deals
WestJet
  • WestJet
  • 31/8
  • Nonstop
  • 5h 45m total
  • Ontario to Portugal
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (C$ 247 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Ontario to Portugal.
Search Deals
Price to beat on a one-way flight from Ontario to Portugal.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Portugal 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 18 June 2026.
Use the filters below to find and compare flights from Ontario to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealLisbon

YUL - LIS

YULLIS

Montreal Pierre Elliott Trudeau Intl

Mon 24/8

7:00 p.m.-6:30 a.m.

Nonstop6h 30m

Lisbon Humberto Delgado

Mon 7/9

11:35 a.m.-7:32 p.m.

1 stop12h 57m

C$ 722

MontrealLisbon

YUL - LIS

YULLIS

Montreal Pierre Elliott Trudeau Intl

Sun 30/8

9:00 p.m.-8:50 a.m.

1 stop30h 50m

Lisbon Humberto Delgado

Mon 14/9

10:00 a.m.-11:38 a.m.

2 stops30h 38m

C$ 749

MontrealLisbon

YUL - LIS

YULLIS

Montreal Pierre Elliott Trudeau Intl

Mon 10/8

9:00 p.m.-2:55 p.m.

1 stop12h 55m

Lisbon Humberto Delgado

Sat 22/8

5:00 a.m.-8:39 a.m.

2 stops32h 39m

C$ 760

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Thu 3/9

8:35 p.m.-11:45 a.m.

1 stop10h 10m

Porto

Sat 12/9

1:30 p.m.-7:32 p.m.

1 stop11h 02m

C$ 776

MontrealLisbon

YUL - LIS

YULLIS

Montreal Pierre Elliott Trudeau Intl

Wed 12/8

11:23 a.m.-10:30 a.m.

2 stops18h 07m

Lisbon Humberto Delgado

Wed 26/8

12:20 p.m.-7:38 a.m.

2 stops24h 18m

C$ 776

MontrealPorto

YUL - OPO

YULOPO

Montreal Pierre Elliott Trudeau Intl

Thu 3/9

5:00 p.m.-11:45 a.m.

1 stop13h 45m

Porto

Sun 13/9

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

Nonstop7h 15m

C$ 784

MontrealLisbon

YUL - LIS

YULLIS

Montreal Pierre Elliott Trudeau Intl

Thu 19/11

7:05 p.m.-2:40 p.m.

2 stops14h 35m

Lisbon Humberto Delgado

Tue 24/11

11:30 a.m.-5:15 p.m.

1 stop34h 45m

C$ 786

MontrealLisbon

YUL - LIS

YULLIS

Montreal Pierre Elliott Trudeau Intl

Mon 21/9

7:00 p.m.-6:30 a.m.

Nonstop6h 30m

Lisbon Humberto Delgado

Sun 4/10

11:35 a.m.-12:37 a.m.

1 stop18h 02m

C$ 795

MontrealLisbon

YUL - LIS

YULLIS

Montreal Pierre Elliott Trudeau Intl

Wed 9/9

3:25 p.m.-10:45 p.m.

2 stops26h 20m

Lisbon Humberto Delgado

Wed 23/9

10:25 a.m.-12:00 p.m.

2 stops30h 35m

C$ 809

TorontoLisbon

YYZ - LIS

YYZLIS

Toronto Pearson Intl

Sun 13/9

11:30 p.m.-5:50 p.m.

1 stop13h 20m

Lisbon Humberto Delgado

Tue 22/9

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

2 stops17h 20m

C$ 815

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/6

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Ontario to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal 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 Portugal

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

Currently, November is the cheapest month in which you can book a flight from Region of Ontario to Portugal (average of C$ 767). Flying from Region of Ontario to Portugal in December is currently the most expensive (average of C$ 1,135). 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 PT?

Find hourly flight availability from Ontario to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 June 2026.

One of the essential ways to save on airfare from Region of Ontario to Portugal is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 25% on airfare.

Weekly flight availability from Region of Ontario to Portugal

Explore weekly flight availability from Ontario to Portugal. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 18 June 2026.

The most flights from CAON to PT0 are scheduled on a Monday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).

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

To ensure you get the cheapest price possible for a flight from Region of Ontario to Portugal, you should look to book at least 87 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Porter Airlines, Delta, and Air Transat can get you from Region of Ontario to Portugal in just under 6h 30m. Your travel time can differ by up to 24h 20m. Region of Ontario and Portugal are separated by a distance of 5234 km. This flight may include one or multiple stops.

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

    The cheapest airlines for a one-way flight from Region of Ontario to Portugal are WestJet (C$ 255), Air Transat (C$ 310), and Azores Airlines (C$ 312).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Portugal 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 Portugal?

    Currently, November is the cheapest month in which you can book a flight from Region of Ontario to Portugal (average of C$ 767). Flying from Region of Ontario to Portugal in December is currently the most expensive (average of C$ 1,135). 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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Alternative routes for Ontario to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Ontario to Portugal

Discover the top 10 airlines that operate flights from Ontario to Portugal. 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 18 June 2026.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapestC$ 361AverageC$ 443FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapestC$ 368AverageC$ 520FlexibilityNo cancel feeOn-time77%
Search Iberia flights
American AirlinesCheapestC$ 385AverageC$ 452FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
British AirwaysCheapestC$ 412AverageC$ 678FlexibilityNo cancel feeOn-time70%
Search British Airways flights
WestJetCheapestC$ 414AverageC$ 714FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Royal Air MarocCheapestC$ 500AverageC$ 599FlexibilityNo cancel feeOn-time75%
Search Royal Air Maroc flights
TAP AIR PORTUGALCheapestC$ 577AverageC$ 917FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air TransatCheapestC$ 579AverageC$ 1,180FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Porter AirlinesCheapestC$ 591AverageC$ 1,031FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
KLMCheapestC$ 632AverageC$ 824FlexibilityNo cancel feeOn-time75%
Search KLM 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 Portugal?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario to Portugal. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights simply makes it quick and affordable to book flights from Ontario to Portugal by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Certainly. Search results for flights to Portugal from Ontario 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 Ontario to Portugal become cheaper?

Yes, Cheapflights offers price alerts on Ontario to Portugal 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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