$305+ Cheap flights from Ottawa (YOW) to Portland, ME (PWM)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/30. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — PWM
Nov 25 — Dec 21
Round-trip
1 adult, Economy
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Find cheap flights from Ottawa to Portland 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 Ottawa to Portland
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ottawa to PortlandExplore the most affordable flight options available from Ottawa to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
Explore the most affordable flight options available from Ottawa to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
This Air Canada deal was found by Cheapflights users on 10/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:00 am -
1 stop14h 42m
Wed 12/97:55 pm -
1 stop17h 16m
Deal found 10/22![Multiple Airlines logo]()
$546
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/193:10 pm -
1 stop8h 11m
Thu 11/265:50 am -
1 stop7h 21m
Deal found 10/22![United Airlines logo]()
$577
This United Airlines deal was found by Cheapflights users on 10/25. 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 11/146:15 am -
1 stop15h 33m
Mon 11/168:49 am -
1 stop13h 07m
Deal found 10/25![United Airlines logo]()
$633
This United Airlines deal was found by Cheapflights users on 10/25. 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.
Sun 12/272:00 pm -
1 stop9h 59m
Mon 12/285:15 am -
1 stop14h 12m
Deal found 10/25![United Airlines logo]()
$696
This United Airlines deal was found by Cheapflights users on 10/25. 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 12/282:00 pm -
1 stop9h 59m
Tue 12/297:44 pm -
1 stop26h 12m
Deal found 10/25![United Airlines logo]()
$751
Best flights from Ottawa to PortlandDiscover carefully curated flight deals from Ottawa to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
Discover carefully curated flight deals from Ottawa to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
This United Airlines deal was found by Cheapflights users on 10/21. 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 1/99:45 am -
2 stops11h 18m
Wed 1/139:10 am -
2 stops10h 17m
Deal found 10/21![United Airlines logo]()
$529
This United deal was found by Cheapflights users on 10/22. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:00 am -
1 stop14h 42m
Wed 12/97:55 pm -
2 stops15h 42m
Deal found 10/22![Multiple Airlines logo]()
$641
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/196:00 am -
2 stops17h 21m
Thu 11/265:50 am -
1 stop7h 21m
Deal found 10/22![United Airlines logo]()
$585
This United Airlines deal was found by Cheapflights users on 10/25. 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 11/1412:10 pm -
2 stops9h 38m
Mon 11/168:49 am -
2 stops28h 21m
Deal found 10/25![United Airlines logo]()
$670
Last-minute flights from Ottawa to PortlandDiscover last-minute flight deals from Ottawa to Portland. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from Ottawa to Portland. Data last updated October 26, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/25. 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 11/146:15 am -
1 stop15h 33m
Mon 11/168:49 am -
1 stop13h 07m
Deal found 10/25![United Airlines logo]()
$633
This American Airlines deal was found by Cheapflights users on 10/25. 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 11/147:00 am -
3 stops14h 39m
Mon 11/164:10 pm -
3 stops25h 42m
Deal found 10/25![American Airlines logo]()
$1,240
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/193:10 pm -
1 stop8h 11m
Thu 11/265:50 am -
1 stop7h 21m
Deal found 10/22![United Airlines logo]()
$577
This American Airlines deal was found by Cheapflights users on 10/22. 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 11/197:00 am -
3 stops15h 46m
Thu 11/2610:34 am -
3 stops31h 18m
Deal found 10/22![American Airlines logo]()
$1,017
One-way flights from Ottawa to PortlandSearch for one-way flight options from Ottawa to Portland. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
Search for one-way flight options from Ottawa to Portland. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 11/307:05 am -
3 stops52h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$305
This United Airlines deal was found by Cheapflights users on 10/23. 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 11/303:10 pm -
1 stop8h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![United Airlines logo]()
$381
This Kiwi.com deal was found by Cheapflights users on 10/23. 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.
Sun 11/298:00 am -
1 stop25h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$415
Find flight deals from Ottawa to Portland
Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Portland (PWM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $529 (United Airlines) |
One-way from | $305 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Ottawa to Portland 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 7,457,451 searches. Data last updated October 26, 2026.
Use the filters below to find and compare flights from Ottawa to Portland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OttawaPortland
YOW Ottawa - PWM Portland
YOWPWM
Ottawa
Mon 11/30
10:30 am-9:08 am
2 stops46h 38m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$311
Quickest round-trip
OttawaPortland
YOW Ottawa - PWM Portland
YOWPWM
Ottawa
Mon 11/30
3:10 pm-11:24 pm
1 stop8h 14m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$381
OttawaPortland
YOW Ottawa - PWM Portland
YOWPWM
Ottawa
Sun 11/29
8:00 am-9:08 am
1 stop25h 08m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$415
OttawaPortland
YOW Ottawa - PWM Portland
YOWPWM
Ottawa
Sat 1/9
9:45 am-9:03 pm
2 stops11h 18m
Portland
Wed 1/13
9:10 am-7:27 pm
2 stops10h 17m
$529
OttawaPortland
YOW Ottawa - PWM Portland
YOWPWM
Ottawa
Thu 11/19
6:00 am-11:21 pm
2 stops17h 21m
Portland
Thu 11/26
5:50 am-1:11 pm
1 stop7h 21m
$585
OttawaPortland
YOW Ottawa - PWM Portland
YOWPWM
Ottawa
Thu 12/3
6:00 am-8:42 pm
1 stop14h 42m
Portland
Wed 12/9
7:55 pm-11:37 am
2 stops15h 42m
$641
OttawaPortland
YOW Ottawa - PWM Portland
YOWPWM
Ottawa
Sat 11/14
12:10 pm-9:48 pm
2 stops9h 38m
Portland
Mon 11/16
8:49 am-1:10 pm
2 stops28h 21m
$670
Sorted by cheapest first
Compare providers for flights from Ottawa to Portland
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ottawa to Portland in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ottawa-Portland, Maine flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ottawa-Portland, Maine flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ottawa-Portland, Maine flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ottawa-Portland, Maine flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ottawa-Portland, Maine flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Ottawa to Portland
Have a flexible travel schedule? Discover the best time to fly to Portland from Ottawa with our price prediction graph.
YOW-PWM
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.
Related info for your journey
Find useful and relevant information for your journey from Ottawa to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsLewiston
North Conway
Brunswick
Conway
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