Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Niagara Falls, ON to Porto 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 22/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — OPO
1 May — 8 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Niagara Falls to Porto are usually found in February or March, booked 87 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

Cheap flight deals from Niagara Falls to Porto

Enter your travel dates to find the best prices.

Cheapest flights from Niagara Falls to Porto
Explore the most affordable flight options available from Niagara Falls to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 April 2026.

Tue 7/411:30 p.m.
YYZ
-
OPO
1 stop17h 35m
Multiple Airlines
Tue 14/46:50 p.m.
OPO
-
YYZ
1 stop23h 30m
Multiple Airlines
Deal found 31/3C$ 741
Tue 26/56:00 p.m.
YYZ
-
OPO
1 stop16h 25m
KLM
Tue 2/67:00 p.m.
OPO
-
YYZ
1 stop23h 20m
KLM
Deal found 30/3C$ 743
Sat 4/411:30 p.m.
YYZ
-
OPO
1 stop10h 55m
Delta
Thu 9/45:00 a.m.
OPO
-
YYZ
1 stop13h 20m
Delta
Deal found 28/3C$ 744
Sun 10/59:55 p.m.
YYZ
-
OPO
1 stop19h 20m
KLM
Thu 14/57:10 p.m.
OPO
-
YYZ
1 stop29h 45m
KLM
Deal found 31/3C$ 747
Fri 10/49:55 p.m.
YYZ
-
OPO
1 stop19h 20m
KLM
Wed 15/45:00 a.m.
OPO
-
YYZ
1 stop13h 20m
KLM
Deal found 29/3C$ 748
Fri 10/49:55 p.m.
YYZ
-
OPO
1 stop19h 20m
KLM
Thu 16/47:10 p.m.
OPO
-
YYZ
1 stop29h 45m
KLM
Deal found 28/3C$ 749
Thu 4/66:00 p.m.
YYZ
-
OPO
1 stop16h 25m
KLM
Thu 18/65:55 a.m.
OPO
-
YYZ
1 stop14h 55m
KLM
Deal found 31/3C$ 752
Mon 1/66:00 p.m.
YYZ
-
OPO
1 stop16h 25m
KLM
Thu 18/65:55 a.m.
OPO
-
YYZ
1 stop14h 55m
KLM
Deal found 28/3C$ 754
Sun 24/56:37 p.m.
YYZ
-
OPO
1 stop10h 48m
Air France
Tue 23/66:15 a.m.
OPO
-
YYZ
1 stop19h 45m
Air France
Deal found 31/3C$ 755
Mon 25/56:37 p.m.
YYZ
-
OPO
1 stop10h 53m
Delta
Sat 6/612:55 p.m.
OPO
-
YYZ
1 stop27h 26m
Delta
Deal found 31/3C$ 756
Wed 27/56:37 p.m.
YYZ
-
OPO
1 stop10h 53m
Delta
Sat 6/612:55 p.m.
OPO
-
YYZ
1 stop15h 21m
Delta
Deal found 28/3C$ 758

Find flight deals from Niagara Falls to Porto

Keep the following information in mind while searching for Niagara Falls to Porto flight deals. Data was last updated 1 April 2026.

Round-trip from

C$ 743

One-way from

C$ 373

Popular in

December

Cheapest in

February

Average price

C$ 887
KLM
  • KLM
  • 26/5-2/6
  • 2 total stops
  • 39h 45m total
  • Niagara Falls to Porto
Search Deals
22/6
  • 22/6
  • 3 total stops
  • 22h 50m total
  • Niagara Falls to Porto
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Niagara Falls 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 1 April 2026.
Use the filters below to find and compare flights from Niagara Falls to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoPorto

YYZ - OPO

YYZOPO

Toronto Pearson Intl

Mon 25/5

6:00 p.m.-3:25 p.m.

1 stop16h 25m

Porto

Thu 4/6

5:55 a.m.-9:00 p.m.

1 stop20h 05m

C$ 752

TorontoPorto

YYZ - OPO

YYZOPO

Toronto Pearson Intl

Mon 8/6

12:11 p.m.-10:30 a.m.

1 stop17h 19m

Porto

Fri 12/6

12:45 p.m.-11:15 p.m.

1 stop15h 30m

C$ 756

TorontoPorto

YYZ - OPO

YYZOPO

Toronto Pearson Intl

Wed 3/6

6:00 p.m.-3:25 p.m.

1 stop16h 25m

Porto

Sat 13/6

12:55 p.m.-1:42 p.m.

1 stop29h 47m

C$ 765

TorontoPorto

YYZ - OPO

YYZOPO

Toronto Pearson Intl

Mon 25/5

6:00 a.m.-10:30 a.m.

1 stop23h 30m

Porto

Sat 6/6

5:00 a.m.-10:59 p.m.

2 stops22h 59m

C$ 777

TorontoPorto

YYZ - OPO

YYZOPO

Toronto Pearson Intl

Sun 24/5

6:00 p.m.-3:25 p.m.

1 stop16h 25m

Porto

Wed 24/6

5:00 a.m.-5:24 p.m.

2 stops17h 24m

C$ 782

TorontoPorto

YYZ - OPO

YYZOPO

Toronto Pearson Intl

Sun 10/5

9:55 p.m.-10:15 p.m.

1 stop19h 20m

Porto

Thu 14/5

5:00 a.m.-5:21 p.m.

2 stops17h 21m

C$ 786
Quickest round-trip

TorontoPorto

YYZ - OPO

YYZOPO

Toronto Pearson Intl

Sun 10/5

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

Nonstop6h 50m

Porto

Thu 14/5

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

Nonstop7h 55m

C$ 879

TorontoPorto

YYZ - OPO

YYZOPO

Toronto Pearson Intl

Tue 19/5

6:00 p.m.-3:25 p.m.

1 stop16h 25m

Porto

Sun 24/5

4:25 p.m.-3:50 p.m.

1 stop28h 25m

C$ 900

TorontoPorto

YYZ - OPO

YYZOPO

Toronto Pearson Intl

Wed 13/5

4:45 p.m.-10:15 p.m.

1 stop24h 30m

Porto

Sun 24/5

4:25 p.m.-3:50 p.m.

1 stop28h 25m

C$ 908

TorontoPorto

YYZ - OPO

YYZOPO

Toronto Pearson Intl

Sat 2/5

4:10 p.m.-3:25 p.m.

2 stops18h 15m

Porto

Wed 6/5

5:00 a.m.-5:21 p.m.

2 stops17h 21m

C$ 942

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/3

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Niagara Falls to Porto

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

How far ahead should I book a flight from Niagara Falls to Porto?

Use this chart to determine the optimal time to book a round-trip flight from Niagara Falls to Porto. Price data was last updated on 13 March 2026.

To ensure you get the cheapest price possible for a flight from Niagara Falls to Porto, 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.

What is the cheapest month to book a flight from Niagara Falls to Porto?

Currently, October is the cheapest month in which you can book a flight from Niagara Falls to Porto (average of C$ 461). Flying from Niagara Falls to Porto in July is currently the most expensive (average of C$ 873). 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 NI4 to OPO?

Find hourly flight availability from Niagara Falls 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 1 April 2026.

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

How much does it cost to fly round-trip from Niagara Falls to Porto?

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated 1 April 2026.
Get a feel of what it's like to fly with Porter Airlines,Air Transat, andAzores Airlines from Niagara Falls to Porto by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
430 reviews
Check prices

Entertainment

7.0

Crew

8.6

Comfort

8.0

Food

7.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Porter Airlines
8.0
Very good
430 reviews
Porter Airlines
8.0
Very good
430 reviews
Check prices

Entertainment

7.0

Crew

8.6

Comfort

8.0

Food

7.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Transat
7.7
Good
530 reviews
Porter Airlines
8.0
Very good
430 reviews
Check prices

Entertainment

7.0

Crew

8.6

Comfort

8.0

Food

7.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Azores Airlines
7.3
Good
95 reviews
Porter Airlines
8.0
Very good
430 reviews
Check prices

Entertainment

7.0

Crew

8.6

Comfort

8.0

Food

7.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Canada
7.1
Good
10,880 reviews
Porter Airlines
8.0
Very good
430 reviews
Check prices

Entertainment

7.0

Crew

8.6

Comfort

8.0

Food

7.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
TAP AIR PORTUGAL
7.1
Good
2,187 reviews
Porter Airlines
8.0
Very good
430 reviews
Check prices

Entertainment

7.0

Crew

8.6

Comfort

8.0

Food

7.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

Related info for your journey

Find useful and relevant information for your journey from Niagara Falls 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 Niagara Falls?

    Porto (OPO) is the airport you will fly into if you book a flight from Niagara Falls to Porto. You should not have trouble finding flights to Porto from Niagara Falls; the airport handles an average of 0 inbound flights from Niagara Falls per day. You should also have plenty of airline options to choose from since 9 airlines have flights to the Porto airport from Niagara Falls. It is only a 10.9 km journey from Porto (OPO) to Porto’s city centre.

  • How long is the flight from Niagara Falls to Porto?

    Departing from Niagara Falls to Porto will take you 16h 25m. The distance between Niagara Falls and Porto is about 5638 km. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Niagara Falls to Porto one-way?

    C$ 348 is the cheapest one-way deal found within the past few days, from Air Transat. You may also be able to find cheap deals on Azores Airlines and Porter Airlines, with prices starting from C$ 374 and C$ 377, respectively.

  • What are the cheapest flights from Niagara Falls to Porto?

    Looking for the cheapest flight from Niagara Falls to Porto? While on average our users pay C$ 808, our data indicates the cheapest price to be C$ 505. The most popular route (Toronto Pearson Intl - Porto), is priced around C$ 758.

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

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

  • How can I find direct flights from Niagara Falls to Porto?

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

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

    Yes. Cheapflights offers flight deals from Niagara Falls 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 Niagara Falls to Porto?

    Currently, October is the cheapest month in which you can book a flight from Niagara Falls to Porto (average of C$ 461). Flying from Niagara Falls to Porto in July is currently the most expensive (average of C$ 873). 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

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 9 airlines flying from Niagara Falls to Porto

Discover the top 9 airlines that operate flights from Niagara Falls 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 1 April 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapestC$ 419AverageC$ 553FlexibilityNo cancel feeOn-time77%
Search Iberia flights
American AirlinesCheapestC$ 461AverageC$ 462FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
TAP AIR PORTUGALCheapestC$ 583AverageC$ 834FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
LufthansaCheapestC$ 649AverageC$ 1,008FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Porter AirlinesCheapestC$ 667AverageC$ 973FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 697AverageC$ 1,024FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapestC$ 746AverageC$ 1,064FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
KLMCheapestC$ 748AverageC$ 875FlexibilityNo cancel feeOn-time75%
Search KLM flights
Azores AirlinesCheapestC$ 762AverageC$ 956FlexibilityNo cancel feeOn-time74%
Search Azores 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 Niagara Falls to Porto?

Deals for Niagara Falls to Porto flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Porto from Niagara Falls.

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

Certainly. Search results for flights to Porto from Niagara Falls 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 Niagara Falls to Porto become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Porto from Niagara Falls today and book when prices fit your budget.

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.