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Portland

$202+ Cheap flights from Ottawa (YOW) to Portland, ME (PWM)

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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — PWM
Apr 16 — Apr 231
Thu 4/16
Thu 4/23
1 adult, Economy
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Cheap flight deals from Ottawa to Portland

Cheapest flights from Ottawa to Portland
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 March 17, 2026.

This United Airlines deal was found by Cheapflights users on 3/12. 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 6/22:52 pm
YOW
-
PWM
1 stop8h 59m
United Airlines
Sat 6/65:15 am
PWM
-
YOW
1 stop4h 48m
United Airlines
Deal found 3/12$344
This United Airlines deal was found by Cheapflights users on 3/15. 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 4/16:00 am
YOW
-
PWM
1 stop4h 22m
United Airlines
Wed 4/153:22 pm
PWM
-
YOW
1 stop6h 43m
United Airlines
Deal found 3/15$388
This Air Canada deal was found by Cheapflights users on 3/15. 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.
Tue 6/29:05 am
YOW
-
PWM
2 stops9h 20m
Air Canada
Sat 6/610:55 am
PWM
-
YOW
1 stop5h 43m
Air Canada
Deal found 3/15$406
This United Airlines deal was found by Cheapflights users on 3/12. 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 3/273:15 pm
YOW
-
PWM
1 stop7h 03m
United Airlines
Sun 3/297:33 pm
PWM
-
YOW
1 stop4h 21m
United Airlines
Deal found 3/12$412
This United Airlines deal was found by Cheapflights users on 3/15. 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 4/146:25 am
YOW
-
PWM
1 stop15h 15m
United Airlines
Tue 4/216:04 am
PWM
-
YOW
2 stops9h 17m
United Airlines
Deal found 3/15$419

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 March 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$344
(United Airlines)

One-way from

$202
(United Airlines)

Popular in

January

Cheapest in

February

Average price

$620
Provider with most accurate pricing for Ottawa-Portland flight deals.
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Provider most trusted by Cheapflights users for Ottawa-Portland flights.
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From Ottawa to Portland
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One-way flight from Ottawa to Portland
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($8 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in March 2026
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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 2,558,603 searches. Data last updated March 17, 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

Price

Cheapest round-trip
Quickest round-trip

OttawaPortland

YOW - PWM

YOWPWM

Ottawa

Tue 6/2

2:52 pm-11:51 pm

1 stop8h 59m

Portland

Sat 6/6

5:15 am-10:03 am

1 stop4h 48m

$344

OttawaPortland

YOW - PWM

YOWPWM

Ottawa

Tue 6/2

9:05 am-6:25 pm

2 stops9h 20m

Portland

Sat 6/6

10:55 am-4:38 pm

1 stop5h 43m

$406
Cheapest one-way

OttawaPortland

YOW - PWM

YOWPWM

Ottawa

Sat 5/9

5:25 pm-10:23 am

1 stop16h 58m

$208

OttawaPortland

YOW - PWM

YOWPWM

Ottawa

Sat 5/9

9:05 am-6:23 pm

2 stops9h 18m

$243
Quickest one-way

OttawaPortland

YOW - PWM

YOWPWM

Ottawa

Mon 4/27

4:15 pm-11:28 pm

2 stops7h 13m

$309

OttawaPortland

YOW - PWM

YOWPWM

Ottawa

Sat 5/9

7:00 am-7:16 pm

3 stops36h 16m

$389

OttawaPortland

YOW - PWM

YOWPWM

Ottawa

Mon 4/27

7:25 pm-11:24 pm

3 stops27h 59m

$673

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/15

Sorted by cheapest first
  • 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.
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 Ottawa to Portland

What is the cheapest month to book a flight from Ottawa to Portland, Maine?

Currently, April is the cheapest month in which you can book a flight from Ottawa to Portland, Maine (average of $165). Flying from Ottawa to Portland, Maine in February is currently the most expensive (average of $273). 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 Ottawa to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    There are many flights that can get you from Ottawa to Portland, Maine in 8h 59m. Fly via United Airlines to get the fastest option. Ottawa and Portland, Maine are separated by a distance of 288 mi.

  • Can I find deals for flights from Ottawa to Portland that include hotel bookings?

    Yes. In addition to deals on Ottawa to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ottawa to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to Portland.

  • Can I find deals for business class flights from Ottawa to Portland?

    Yes. Cheapflights offers flight deals from Ottawa to Portland 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 Ottawa to Portland, Maine?

    Currently, April is the cheapest month in which you can book a flight from Ottawa to Portland, Maine (average of $165). Flying from Ottawa to Portland, Maine in February is currently the most expensive (average of $273). 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

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Brunswick
Auburn
Lewiston
Conway

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