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Niagara Falls

$172+ Cheap flights from Portland, ME (PWM) to Niagara Falls, ON, 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YYZ
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This American Airlines deal was found by Cheapflights users on 1/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:45 pm
PWM
-
YYZ
1 stop17h 14m
American Airlines
Wed 4/296:15 am
YYZ
-
PWM
1 stop11h 00m
American Airlines
Deal found 1/28$426
This American Airlines deal was found by Cheapflights users on 1/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/275:40 pm
PWM
-
YYZ
1 stop17h 19m
American Airlines
Sat 3/216:00 am
YYZ
-
PWM
1 stop17h 34m
American Airlines
Deal found 1/27$437
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Mon 2/235:06 pm
PWM
-
YYZ
2 stops31h 08m
Multiple Airlines
Tue 3/37:15 am
YYZ
-
PWM
1 stop27h 02m
Multiple Airlines
Deal found 1/28$444
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Fri 5/89:52 am
PWM
-
YYZ
1 stop10h 13m
Multiple Airlines
Mon 5/111:30 pm
YYZ
-
PWM
2 stops25h 01m
Multiple Airlines
Deal found 1/28$459
This American Airlines deal was found by Cheapflights users on 1/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/810:24 am
PWM
-
YYZ
1 stop12h 47m
American Airlines
Mon 5/117:29 pm
YYZ
-
PWM
1 stop14h 25m
American Airlines
Deal found 1/28$477
This American Airlines deal was found by Cheapflights users on 1/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/285:57 pm
PWM
-
YYZ
1 stop17h 01m
American Airlines
Tue 3/31:55 pm
YYZ
-
PWM
2 stops9h 55m
American Airlines
Deal found 1/27$498
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Sat 2/76:18 pm
PWM
-
YYZ
1 stop27h 01m
Multiple Airlines
Tue 2/105:15 pm
YYZ
-
PWM
1 stop17h 02m
Multiple Airlines
Deal found 1/27$532
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:00 am
PWM
-
YYZ
2 stops14h 24m
United Airlines
Wed 4/292:05 pm
YYZ
-
PWM
1 stop20h 13m
United Airlines
Deal found 1/28$536
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Sat 1/3111:02 am
PWM
-
YYZ
1 stop27h 18m
Multiple Airlines
Mon 2/23:40 pm
YYZ
-
PWM
2 stops42h 37m
Multiple Airlines
Deal found 1/27$537

Find 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$426
(American Airlines)

One-way from

$172
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$760
Provider with most accurate pricing for Portland-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Toronto (YTO) flights.
Search Deals
From Portland to Niagara Falls
Search Deals
One-way flight from Portland to Niagara Falls
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($225 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 29, 2026.
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

Sat 4/25

5:45 pm-10:59 am

1 stop17h 14m

Toronto Pearson Intl

Wed 4/29

6:15 am-5:15 pm

1 stop11h 00m

$426

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 3/13

6:17 am-4:03 pm

1 stop9h 46m

Toronto Pearson Intl

Fri 3/20

1:10 pm-11:34 pm

1 stop10h 24m

$437

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Sat 2/28

5:57 pm-10:58 am

1 stop17h 01m

Toronto Pearson Intl

Tue 3/3

6:00 am-5:07 pm

1 stop11h 07m

$437

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 2/27

5:40 pm-10:59 am

1 stop17h 19m

Toronto Pearson Intl

Sat 3/21

11:40 am-11:34 pm

1 stop11h 54m

$437

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Sat 2/28

5:57 pm-10:58 am

1 stop17h 01m

Toronto Pearson Intl

Wed 3/18

1:10 pm-11:34 pm

1 stop10h 24m

$437

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Mon 2/23

5:06 pm-12:14 am

2 stops31h 08m

Toronto Pearson Intl

Tue 3/3

7:15 am-10:17 am

1 stop27h 02m

$444

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Sat 4/25

6:00 am-8:24 pm

2 stops14h 24m

Toronto Pearson Intl

Wed 4/29

2:05 pm-10:18 am

1 stop20h 13m

$536

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Sun 3/1

5:40 pm-10:58 am

1 stop17h 18m

Toronto Pearson Intl

Wed 3/4

6:00 am-5:07 pm

1 stop11h 07m

$538

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 5/8

9:52 am-8:05 pm

1 stop10h 13m

$172

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Tue 5/5

10:24 am-11:11 pm

1 stop12h 47m

$194

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 17 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, March 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.

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.

  • How long is the flight from Portland, Maine to Niagara Falls?

    There are many flights that can get you from Portland, Maine to Niagara Falls in 17h 14m. Fly via American Airlines to get the fastest option. There are 465 mi between Portland, Maine and Niagara Falls.

  • 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, March 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.

See more FAQs

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