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Niagara Falls

$165+ 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YYZ
Aug 16 — Aug 231
Sat 8/16
Sat 8/23
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 August 11, 2025.

Round-trip from

$364
(Delta)

One-way from

$165
(Delta)

Popular in

November

Cheapest in

February

Average price

$708
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. 19% potential increase in price ($128 potential increase over avg. RT price).
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Cheapest flight prices on average. 10% potential price decrease ($50 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 11, 2025.

This Delta deal was found by Cheapflights users on 8/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/56:31 amPWM - YYZ
1 stop16h 40mDelta
Fri 9/126:03 amYYZ - PWM
1 stop18h 31mDelta
Deal found 8/9$364
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 9/59:46 amPWM - YYZ
1 stop12h 54mMultiple Airlines
Sat 9/204:20 pmYYZ - PWM
1 stop24h 40mMultiple Airlines
Deal found 8/10$383
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 10/1111:16 amPWM - YYZ
1 stop11h 24mMultiple Airlines
Sat 10/187:45 amYYZ - PWM
1 stop9h 53mMultiple Airlines
Deal found 8/10$406
This American Airlines deal was found by Cheapflights users on 8/9. 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.
Tue 9/237:05 amPWM - YYZ
1 stop15h 58mAmerican Airlines
Tue 9/3012:45 pmYYZ - PWM
1 stop7h 26mAmerican Airlines
Deal found 8/9$425
This American Airlines deal was found by Cheapflights users on 8/10. 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.
Tue 9/97:05 amPWM - YYZ
1 stop15h 58mAmerican Airlines
Tue 9/1612:45 pmYYZ - PWM
1 stop7h 26mAmerican Airlines
Deal found 8/10$436
This Delta deal was found by Cheapflights users on 8/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/246:00 amPWM - YYZ
1 stop7h 39mDelta
Wed 10/16:03 amYYZ - PWM
1 stop7h 58mDelta
Deal found 8/10$451
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 10/179:46 amPWM - YYZ
1 stop12h 54mMultiple Airlines
Sun 10/198:00 pmYYZ - PWM
1 stop13h 06mMultiple Airlines
Deal found 8/11$488
This American Airlines deal was found by Cheapflights users on 8/9. 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 9/57:05 amPWM - YYZ
1 stop15h 58mAmerican Airlines
Sat 9/136:30 amYYZ - PWM
2 stops10h 09mAmerican Airlines
Deal found 8/9$495
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Thu 9/116:00 amPWM - YYZ
1 stop10h 33mAmerican Airlines
Sun 9/147:20 amYYZ - PWM
1 stop12h 59mAmerican Airlines
Deal found 8/11$510
This American Airlines deal was found by Cheapflights users on 8/9. 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.
Tue 9/27:09 amPWM - YYZ
1 stop16h 01mAmerican Airlines
Tue 9/97:20 amYYZ - PWM
1 stop12h 51mAmerican Airlines
Deal found 8/9$511

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 August 11, 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

Fri 9/5

6:31 am-11:11 pm

1 stop16h 40m

Toronto Pearson Intl

Fri 9/12

6:03 am-12:34 am

1 stop18h 31m

$364

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 9/5

9:46 am-10:40 pm

1 stop12h 54m

Toronto Pearson Intl

Sat 9/20

4:20 pm-5:00 pm

1 stop24h 40m

$383

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Sat 10/11

11:16 am-10:40 pm

1 stop11h 24m

Toronto Pearson Intl

Sat 10/18

7:45 am-5:38 pm

1 stop9h 53m

$406

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Tue 9/23

7:05 am-11:03 pm

1 stop15h 58m

Toronto Pearson Intl

Tue 9/30

12:45 pm-8:11 pm

1 stop7h 26m

$425

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Tue 9/9

7:05 am-11:03 pm

1 stop15h 58m

Toronto Pearson Intl

Tue 9/16

12:45 pm-8:11 pm

1 stop7h 26m

$436

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Wed 9/24

6:00 am-1:39 pm

1 stop7h 39m

Toronto Pearson Intl

Wed 10/1

6:03 am-2:01 pm

1 stop7h 58m

$451

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 10/17

9:46 am-10:40 pm

1 stop12h 54m

Toronto Pearson Intl

Sun 10/19

8:00 pm-9:06 am

1 stop13h 06m

$488

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 9/5

7:05 am-11:03 pm

1 stop15h 58m

Toronto Pearson Intl

Sat 9/13

6:30 am-4:39 pm

2 stops10h 09m

$495

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Thu 9/11

6:00 am-4:33 pm

1 stop10h 33m

Toronto Pearson Intl

Sun 9/14

7:20 am-8:19 pm

1 stop12h 59m

$510

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Tue 9/2

7:09 am-11:10 pm

1 stop16h 01m

Toronto Pearson Intl

Tue 9/9

7:20 am-8:11 pm

1 stop12h 51m

$511

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/9

Showing 1-10 of 19 results
1
2

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, January is the cheapest month in which you can book a flight from Portland, Maine to Niagara Falls (average of $243). Flying from Portland, Maine to Niagara Falls in August is currently the most expensive (average of $348). 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 August 11, 2025.

When flying from Portland, Maine to Niagara Falls, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Niagara Falls

Get insights into the airlines that provide service to Niagara Falls. 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 Niagara Falls. Reviews last updated August 11, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Portland to Niagara Falls by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,979 reviews
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,920 reviews
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
WestJet
7.2
Good
3,006 reviews
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,915 reviews
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 1 airline.

  • 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 $165. American Airlines flights start at $233 while deals on United Airlines start at $254 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, January is the cheapest month in which you can book a flight from Portland, Maine to Niagara Falls (average of $243). Flying from Portland, Maine to Niagara Falls in August is currently the most expensive (average of $348). 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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Top airline flying from Portland to Niagara Falls

Discover the top airline that operate flights from Portland to Niagara Falls. 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 2,558,603 searches. Data last updated August 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$247Average$379FlexibilityNo cancel feeOn-time71%

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