$219+ 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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YYZ
Sep 5 — Sep 121
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Niagara Falls with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Niagara Falls
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Cheapest flights from Portland to Niagara FallsExplore 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 6, 2026.
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 6, 2026.
This American Airlines deal was found by Cheapflights users on 8/4. 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 9/196:00 am -
1 stop10h 45m
Sat 9/2611:02 am -
1 stop10h 43m
Deal found 8/4![American Airlines logo]()
$497
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 9/116:00 am -
2 stops14h 55m
Sat 9/191:30 pm -
1 stop19h 51m
Deal found 8/3![Multiple Airlines logo]()
$511
This Delta deal was found by Cheapflights users on 8/1. 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.
Sat 8/296:00 am -
1 stop17h 18m
Wed 9/96:10 am -
1 stop17h 46m
Deal found 8/1![Delta logo]()
$528
This oojo deal was found by Cheapflights users on 8/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:50 am -
2 stops12h 09m
Sun 8/302:24 pm -
1 stop21h 38m
Deal found 8/4![WestJet logo]()
$530
This American Airlines deal was found by Cheapflights users on 8/4. 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 9/19:52 am -
1 stop4h 47m
Wed 9/911:02 am -
1 stop12h 43m
Deal found 8/4![American Airlines logo]()
$535
This American Airlines deal was found by Cheapflights users on 8/2. 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 8/216:02 am -
1 stop10h 43m
Mon 8/2411:01 am -
1 stop12h 46m
Deal found 8/2![American Airlines logo]()
$539
This American Airlines deal was found by Cheapflights users on 7/31. 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.
Sun 8/235:30 am -
1 stop4h 47m
Mon 8/312:15 pm -
1 stop9h 32m
Deal found 7/31![American Airlines logo]()
$542
This Delta deal was found by Cheapflights users on 8/1. 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.
Sat 8/296:10 am -
1 stop12h 02m
Tue 9/86:10 am -
1 stop9h 29m
Deal found 8/1![Delta logo]()
$545
This Delta deal was found by Cheapflights users on 8/1. 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.
Sat 8/296:00 am -
1 stop17h 18m
Thu 9/106:10 am -
1 stop17h 46m
Deal found 8/1![Delta logo]()
$546
Best flights from Portland to Niagara FallsDiscover carefully curated flight deals from Portland to Niagara Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 6, 2026.
Discover carefully curated flight deals from Portland to Niagara Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 6, 2026.
This Delta deal was found by Cheapflights users on 8/1. 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.
Sat 8/296:00 am -
1 stop17h 18m
Mon 9/76:00 am -
1 stop10h 50m
Deal found 8/1![Delta logo]()
$561
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 9/189:48 am -
1 stop13h 47m
Mon 9/2112:08 pm -
1 stop3h 47m
Deal found 8/3![Multiple Airlines logo]()
$568
This American Airlines deal was found by Cheapflights users on 8/2. 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.
Wed 10/216:00 am -
1 stop4h 28m
Wed 10/284:15 pm -
1 stop5h 21m
Deal found 8/2![American Airlines logo]()
$571
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Thu 9/245:15 am -
1 stop4h 49m
Sat 9/262:35 pm -
1 stop4h 49m
Deal found 7/31![United Airlines logo]()
$592
This FlightHub deal was found by Cheapflights users on 8/4. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:47 pm -
1 stop4h 37m
Mon 8/249:45 am -
1 stop6h 16m
Deal found 8/4![WestJet logo]()
$596
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Thu 9/36:00 am -
1 stop5h 43m
Wed 9/910:45 am -
1 stop7h 44m
Deal found 8/4![United Airlines logo]()
$593
This United Airlines deal was found by Cheapflights users on 8/1. 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.
Mon 8/317:35 pm -
1 stop4h 19m
Tue 9/82:30 pm -
1 stop4h 54m
Deal found 8/1![United Airlines logo]()
$593
This United Airlines deal was found by Cheapflights users on 8/1. 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.
Tue 8/187:35 am -
1 stop8h 11m
Fri 8/217:00 pm -
1 stop4h 32m
Deal found 8/1![United Airlines logo]()
$593
This United Airlines deal was found by Cheapflights users on 8/2. 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.
Mon 8/317:35 pm -
1 stop4h 19m
Mon 9/77:00 pm -
1 stop4h 32m
Deal found 8/2![United Airlines logo]()
$597
Last-minute flights from Portland to Niagara FallsDiscover last-minute flight deals from Portland to Niagara Falls. Data last updated August 6, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Niagara Falls. Data last updated August 6, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/2. 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 8/216:02 am -
1 stop10h 43m
Mon 8/2411:01 am -
1 stop12h 46m
Deal found 8/2![American Airlines logo]()
$539
This American Airlines deal was found by Cheapflights users on 7/31. 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.
Sun 8/235:30 am -
1 stop4h 47m
Mon 8/312:15 pm -
1 stop9h 32m
Deal found 7/31![American Airlines logo]()
$542
This oojo deal was found by Cheapflights users on 8/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:50 am -
2 stops12h 09m
Sun 8/302:24 pm -
1 stop21h 38m
Deal found 8/4![WestJet logo]()
$530
This Delta deal was found by Cheapflights users on 8/1. 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.
Sat 8/296:00 am -
1 stop17h 18m
Wed 9/96:10 am -
1 stop17h 46m
Deal found 8/1![Delta logo]()
$528
This Delta deal was found by Cheapflights users on 8/1. 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.
Sat 8/296:10 am -
1 stop12h 02m
Tue 9/86:10 am -
1 stop9h 29m
Deal found 8/1![Delta logo]()
$545
This Delta deal was found by Cheapflights users on 8/1. 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.
Sat 8/296:00 am -
1 stop17h 18m
Thu 9/106:10 am -
1 stop17h 46m
Deal found 8/1![Delta logo]()
$546
This American Airlines deal was found by Cheapflights users on 8/4. 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 9/19:52 am -
1 stop4h 47m
Wed 9/911:02 am -
1 stop12h 43m
Deal found 8/4![American Airlines logo]()
$535
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 9/116:00 am -
2 stops14h 55m
Sat 9/191:30 pm -
1 stop19h 51m
Deal found 8/3![Multiple Airlines logo]()
$511
This American Airlines deal was found by Cheapflights users on 8/4. 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 9/196:00 am -
1 stop10h 45m
Sat 9/2611:02 am -
1 stop10h 43m
Deal found 8/4![American Airlines logo]()
$497
One-way flights from Portland to Niagara FallsSearch for one-way flight options from Portland to Niagara Falls. Find affordable one-way fares based on user searches. Data last updated August 6, 2026.
Search for one-way flight options from Portland to Niagara Falls. Find affordable one-way fares based on user searches. Data last updated August 6, 2026.
This American Airlines deal was found by Cheapflights users on 8/5. 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 9/196:00 am -
1 stop7h 33m
Deal found 8/5![American Airlines logo]()
$219
This oojo deal was found by Cheapflights users on 8/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:50 am -
2 stops17h 55m
Deal found 8/4![WestJet logo]()
$232
This oojo deal was found by Cheapflights users on 8/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2411:50 am -
1 stop11h 23m
Deal found 8/5![WestJet logo]()
$243
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 9/196:31 pm -
2 stops19h 34m
Deal found 8/5![Multiple Airlines logo]()
$248
This United Airlines deal was found by Cheapflights users on 8/1. 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.
Wed 9/25:03 pm -
1 stop6h 56m
Deal found 8/1![United Airlines logo]()
$249
This United Airlines deal was found by Cheapflights users on 8/2. 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 9/55:03 pm -
1 stop6h 56m
Deal found 8/2![United Airlines logo]()
$250
This FlightHub deal was found by Cheapflights users on 8/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:10 am -
2 stops24h 45m
Deal found 8/1![WestJet logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 8/1. 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.
Wed 9/25:01 pm -
3 stops28h 54m
Deal found 8/1![Multiple Airlines logo]()
$262
This WestJet deal was found by Cheapflights users on 8/1. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/811:50 am -
1 stop11h 23m
Deal found 8/1![WestJet logo]()
$264
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 August 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $497 (American Airlines) |
One-way from | $219 (American Airlines) |
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 6, 2026.
Use the filters below to find and compare flights from Portland to Niagara Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandToronto
PWM Portland - YYZ Toronto Pearson Intl
PWMYYZ
Portland
Sat 8/29
6:00 am-11:18 pm
1 stop17h 18m
Toronto Pearson Intl
Mon 9/7
6:00 am-4:50 pm
1 stop10h 50m
$561
PortlandToronto
PWM Portland - YYZ Toronto Pearson Intl
PWMYYZ
Portland
Fri 9/18
9:48 am-11:35 pm
1 stop13h 47m
Toronto Pearson Intl
Mon 9/21
12:08 pm-3:55 pm
1 stop3h 47m
$568
PortlandToronto
PWM Portland - YYZ Toronto Pearson Intl
PWMYYZ
Portland
Wed 10/21
6:00 am-10:28 am
1 stop4h 28m
Toronto Pearson Intl
Wed 10/28
4:15 pm-9:36 pm
1 stop5h 21m
$571
PortlandToronto
PWM Portland - YYZ Toronto Pearson Intl
PWMYYZ
Portland
Thu 9/24
5:15 am-10:04 am
1 stop4h 49m
Toronto Pearson Intl
Sat 9/26
2:35 pm-7:24 pm
1 stop4h 49m
$592
PortlandToronto
PWM Portland - YYZ Toronto Pearson Intl
PWMYYZ
Portland
Thu 9/3
6:00 am-11:43 am
1 stop5h 43m
Toronto Pearson Intl
Wed 9/9
10:45 am-6:29 pm
1 stop7h 44m
$593
PortlandToronto
PWM Portland - YYZ Toronto Pearson Intl
PWMYYZ
Portland
Mon 8/31
7:35 pm-11:54 pm
1 stop4h 19m
Toronto Pearson Intl
Tue 9/8
2:30 pm-7:24 pm
1 stop4h 54m
$593
PortlandToronto
PWM Portland - YYZ Toronto Pearson Intl
PWMYYZ
Portland
Tue 8/18
7:35 am-3:46 pm
1 stop8h 11m
Toronto Pearson Intl
Fri 8/21
7:00 pm-11:32 pm
1 stop4h 32m
$593
PortlandToronto
PWM Portland - YYZ Toronto Pearson Intl
PWMYYZ
Portland
Fri 8/21
12:47 pm-5:24 pm
1 stop4h 37m
Toronto Pearson Intl
Mon 8/24
9:45 am-4:01 pm
1 stop6h 16m
$596
Quickest round-trip
PortlandToronto
PWM Portland - YYZ Toronto Pearson Intl
PWMYYZ
Portland
Mon 8/31
7:35 pm-11:54 pm
1 stop4h 19m
Toronto Pearson Intl
Mon 9/7
7:00 pm-11:32 pm
1 stop4h 32m
$597
Cheapest one-way
PortlandToronto
PWM Portland - YYZ Toronto Pearson Intl
PWMYYZ
Portland
Sat 9/19
6:00 am-1:33 pm
1 stop7h 33m
$219
Showing 1-10 of 20 resultsSorted by cheapest first
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.
PWM-YYZ
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
PWM-NI4
PWM-YYZ
No data available for this route at this time. Please check back soon.
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