$322+ Cheap flights from Portland, ME (PWM) to Ottawa (YOW)
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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YOW
Nov 27 — Dec 41
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Ottawa 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 Ottawa
Cheapest
Best
One-way
Cheapest flights from Portland to OttawaExplore the most affordable flight options available from Portland to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2026.
Explore the most affordable flight options available from Portland to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2026.
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/77:55 pm -
1 stop17h 16m
Wed 12/96:00 am -
1 stop17h 24m
Deal found 10/27![United Airlines logo]()
$651
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Thu 12/1010:54 am -
2 stops27h 54m
Thu 12/174:30 pm -
1 stop16h 38m
Deal found 10/26![Multiple Airlines logo]()
$712
This United Airlines deal was found by Cheapflights users on 10/26. 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 12/107:55 pm -
1 stop26h 01m
Thu 12/176:00 am -
1 stop9h 46m
Deal found 10/26![United Airlines logo]()
$746
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/177:00 am -
1 stop14h 56m
Sun 1/36:00 am -
1 stop9h 46m
Deal found 10/23![Multiple Airlines logo]()
$895
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Mon 12/74:02 pm -
3 stops25h 54m
Wed 12/97:00 am -
2 stops11h 14m
Deal found 10/27![American Airlines logo]()
$1,183
This American Airlines deal was found by Cheapflights users on 10/26. 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 12/104:02 pm -
3 stops25h 54m
Thu 12/177:00 am -
3 stops17h 23m
Deal found 10/26![American Airlines logo]()
$1,273
Best flights from Portland to OttawaDiscover carefully curated flight deals from Portland to Ottawa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 28, 2026.
Discover carefully curated flight deals from Portland to Ottawa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 28, 2026.
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/77:55 pm -
1 stop17h 16m
Wed 12/96:00 am -
1 stop17h 24m
Deal found 10/27![United Airlines logo]()
$651
This American Airlines deal was found by Cheapflights users on 10/27. 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 4/910:29 am -
2 stops31h 29m
Mon 4/127:00 am -
2 stops26h 59m
Deal found 10/27![American Airlines logo]()
$847
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/177:00 am -
1 stop14h 56m
Sun 1/36:00 am -
1 stop9h 46m
Deal found 10/23![Multiple Airlines logo]()
$895
This United Airlines deal was found by Cheapflights users on 10/26. 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 12/107:55 pm -
1 stop26h 01m
Thu 12/176:00 am -
1 stop9h 46m
Deal found 10/26![United Airlines logo]()
$746
This United Airlines deal was found by Cheapflights users on 10/26. 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 2/27:50 pm -
2 stops18h 39m
Sat 2/66:00 am -
1 stop12h 53m
Deal found 10/26![United Airlines logo]()
$813
This United Airlines deal was found by Cheapflights users on 10/26. 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 2/66:00 am -
2 stops11h 20m
Tue 2/910:30 am -
2 stops10h 33m
Deal found 10/26![United Airlines logo]()
$827
This United Airlines deal was found by Cheapflights users on 10/26. 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 2/27:50 pm -
1 stop17h 21m
Sun 2/73:10 pm -
1 stop8h 22m
Deal found 10/26![United Airlines logo]()
$828
This United Airlines deal was found by Cheapflights users on 10/26. 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 2/39:40 am -
1 stop5h 27m
Fri 2/53:10 pm -
1 stop5h 53m
Deal found 10/26![United Airlines logo]()
$836
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/95:45 am -
1 stop11h 29m
Mon 4/126:00 am -
1 stop12h 13m
Deal found 10/27![United Airlines logo]()
$960
One-way flights from Portland to OttawaSearch for one-way flight options from Portland to Ottawa. Find affordable one-way fares based on user searches. Data last updated October 28, 2026.
Search for one-way flight options from Portland to Ottawa. Find affordable one-way fares based on user searches. Data last updated October 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Tue 11/105:09 pm -
2 stops23h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$322
Find flight deals from Portland to Ottawa
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Ottawa (YOW). 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 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $434 (Kiwi.com) |
One-way from | $322 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland to Ottawa 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 28, 2026.
Use the filters below to find and compare flights from Portland to Ottawa that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandOttawa
PWM Portland - YOW Ottawa
PWMYOW
Portland
Tue 11/10
5:09 pm-4:45 pm
2 stops23h 36m
Ottawa
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$322
PortlandOttawa
PWM Portland - YOW Ottawa
PWMYOW
Portland
Mon 12/7
7:55 pm-1:11 pm
1 stop17h 16m
Ottawa
Wed 12/9
6:00 am-11:24 pm
1 stop17h 24m
$651
PortlandOttawa
PWM Portland - YOW Ottawa
PWMYOW
Portland
Thu 12/10
7:55 pm-9:56 pm
1 stop26h 01m
Ottawa
Thu 12/17
6:00 am-3:46 pm
1 stop9h 46m
$746
PortlandOttawa
PWM Portland - YOW Ottawa
PWMYOW
Portland
Tue 2/2
7:50 pm-2:29 pm
2 stops18h 39m
Ottawa
Sat 2/6
6:00 am-6:53 pm
1 stop12h 53m
$813
PortlandOttawa
PWM Portland - YOW Ottawa
PWMYOW
Portland
Sat 2/6
6:00 am-5:20 pm
2 stops11h 20m
Ottawa
Tue 2/9
10:30 am-9:03 pm
2 stops10h 33m
$827
PortlandOttawa
PWM Portland - YOW Ottawa
PWMYOW
Portland
Tue 2/2
7:50 pm-1:11 pm
1 stop17h 21m
Ottawa
Sun 2/7
3:10 pm-11:32 pm
1 stop8h 22m
$828
Quickest round-trip
PortlandOttawa
PWM Portland - YOW Ottawa
PWMYOW
Portland
Wed 2/3
9:40 am-3:07 pm
1 stop5h 27m
Ottawa
Fri 2/5
3:10 pm-9:03 pm
1 stop5h 53m
$836
PortlandOttawa
PWM Portland - YOW Ottawa
PWMYOW
Portland
Fri 4/9
10:29 am-5:58 pm
2 stops31h 29m
Ottawa
Mon 4/12
7:00 am-9:59 am
2 stops26h 59m
$847
PortlandOttawa
PWM Portland - YOW Ottawa
PWMYOW
Portland
Thu 12/17
7:00 am-9:56 pm
1 stop14h 56m
Ottawa
Sun 1/3
6:00 am-3:46 pm
1 stop9h 46m
$895
PortlandOttawa
PWM Portland - YOW Ottawa
PWMYOW
Portland
Fri 4/9
5:45 am-5:14 pm
1 stop11h 29m
Ottawa
Mon 4/12
6:00 am-6:13 pm
1 stop12h 13m
$960
Sorted by cheapest first
Compare providers for flights from Portland to Ottawa
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 Portland to Ottawa in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Portland, Maine-Ottawa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Ottawa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Ottawa flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland, Maine-Ottawa 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 Portland, Maine-Ottawa 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 Portland to Ottawa
Have a flexible travel schedule? Discover the best time to fly to Ottawa from Portland with our price prediction graph.
PWM-YOW
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 Portland to Ottawa. 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 Ottawa?
Book flights to Ottawa if you plan to visit one of these locationsGatineau
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