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Niagara Falls

$142+ Cheap flights from Portland, ME (PWM) to Niagara Falls, Canada

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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YYZ
nov. 13 — nov. 201
jue. 11/13
jue. 11/20
1 adult, Economy
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Cheap flight deals from Portland to Niagara Falls

Keep the following information in mind while searching for Portland to Niagara Falls flight deals. Data was last updated octubre 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$326
(Kiwi.com)

One-way from

$142
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$620
Provider with most accurate pricing for Boston Logan Intl-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Toronto (YTO) flights.
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From Portland to Niagara Falls
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One-way flight from Portland to Niagara Falls
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Highest demand for flights based on searches. 29% potential increase in price ($262 potential increase over avg. RT price).
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Cheapest flight prices on average. 15% potential price decrease ($84 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Portland to Niagara Falls

Cheapest flights from Portland to Niagara Falls
Explore the most affordable flight options available from Portland to Niagara Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/2911:21 amPWM - YYZ
2 stops12h 50mMultiple Airlines
jue. 10/307:35 amYYZ - PWM
1 stop9h 25mMultiple Airlines
Deal found 10/14$326
This Kiwi.com deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/36:05 pmPWM - YYZ
2 stops47h 48mMultiple Airlines
mar. 11/115:15 pmYYZ - PWM
1 stop17h 21mMultiple Airlines
Deal found 10/12$385
This Kiwi.com deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/2611:16 amPWM - YYZ
1 stop12h 55mMultiple Airlines
mié. 12/37:35 amYYZ - PWM
1 stop27h 43mMultiple Airlines
Deal found 10/12$416
This Kiwi.com deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/95:40 pmPWM - YYZ
1 stop24h 04mMultiple Airlines
dom. 11/168:00 pmYYZ - PWM
1 stop13h 06mMultiple Airlines
Deal found 10/12$422
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/79:46 amPWM - YYZ
1 stop14h 25mMultiple Airlines
jue. 11/137:35 amYYZ - PWM
1 stop9h 25mMultiple Airlines
Deal found 10/14$435
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/79:46 amPWM - YYZ
1 stop14h 25mMultiple Airlines
dom. 11/98:00 pmYYZ - PWM
1 stop13h 06mMultiple Airlines
Deal found 10/14$437
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/282:36 pmPWM - YYZ
2 stops33h 35mMultiple Airlines
vie. 12/55:15 pmYYZ - PWM
1 stop17h 21mMultiple Airlines
Deal found 10/14$444

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Niagara Falls 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 2,558,603 searches. Data last updated octubre 14, 2025.
Use the filters below to find and compare flights from Portland to Niagara Falls that are best for you.

Fly from

Portland

Fly to

Niagara Falls

Route

Depart

Return

Price

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

mié. 10/29

11:21 am-12:11 am

2 stops12h 50m

Toronto Pearson Intl

jue. 10/30

7:35 am-5:00 pm

1 stop9h 25m

$326

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

lun. 11/3

6:05 pm-5:53 pm

2 stops47h 48m

Toronto Pearson Intl

mar. 11/11

5:15 pm-10:36 am

1 stop17h 21m

$385

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

mié. 11/26

11:16 am-12:11 am

1 stop12h 55m

Toronto Pearson Intl

mié. 12/3

7:35 am-11:18 am

1 stop27h 43m

$416

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

dom. 11/9

5:40 pm-5:44 pm

1 stop24h 04m

Toronto Pearson Intl

dom. 11/16

8:00 pm-9:06 am

1 stop13h 06m

$422

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

vie. 11/7

9:46 am-12:11 am

1 stop14h 25m

Toronto Pearson Intl

jue. 11/13

7:35 am-5:00 pm

1 stop9h 25m

$435

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

vie. 11/7

9:46 am-12:11 am

1 stop14h 25m

Toronto Pearson Intl

dom. 11/9

8:00 pm-9:06 am

1 stop13h 06m

$437

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

vie. 11/28

2:36 pm-12:11 am

2 stops33h 35m

Toronto Pearson Intl

vie. 12/5

5:15 pm-10:36 am

1 stop17h 21m

$444

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

sáb. 1/10

5:30 am-4:30 pm

1 stop11h 00m

Toronto Pearson Intl

dom. 1/11

10:59 am-11:40 pm

1 stop12h 41m

$445

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

mié. 10/29

11:21 am-12:11 am

2 stops12h 50m

$142

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

mié. 10/29

5:42 am-1:40 pm

1 stop7h 58m

$252

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 15 results
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Best time to book a flight from Portland to Niagara Falls

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

What is the cheapest month to book a flight from Portland, Maine to Niagara Falls?

Currently, April is the cheapest month in which you can book a flight from Portland, Maine to Niagara Falls (average of $117). Flying from Portland, Maine to Niagara Falls in August is currently the most expensive (average of $232). 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 PWM to NI4?

Find hourly flight availability from Portland to Niagara Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 14, 2025.

It’s optimal to fly from Portland, Maine to Niagara Falls in the afternoon. By choosing this option you can save up to 14% on the cost of your flight, compared to a flight in the morning.

Related info for your journey

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

    Located just 2.9 mi from the city center, Portland is the airport most travelers will use when flying to Niagara Falls from Portland. Booking flights from Portland (PWM) to Niagara Falls should be relatively easy as there are 0 daily outbound flights to Niagara Falls from 0 different airlines.

  • What are the cheapest airlines to fly from Portland, Maine to Niagara Falls one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $252. United Airlines flights start at $340 while deals on American Airlines start at $371 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland to Niagara Falls 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 Portland, Maine to Niagara Falls?

    Currently, April is the cheapest month in which you can book a flight from Portland, Maine to Niagara Falls (average of $117). Flying from Portland, Maine to Niagara Falls in August is currently the most expensive (average of $232). 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.

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