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Cheap flights from Ottawa to Portland from $276

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ottawa to Portland departing on 9/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ottawa to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
7:00 am - 3:51 pm
YOW
-
PWM
8h 51m
2 stops
American Airlines Logo
4:41 pm - 2:55 pm
PWM
-
YOW
22h 14m
2 stops
$503American Airlines
Thu, Sep 10 - Thu, Sep 17
United Airlines Logo
2:48 pm - 6:13 pm
YOW
-
PWM
3h 25m
1 stop
United Airlines Logo
6:00 am - 1:26 pm
PWM
-
YOW
7h 26m
1 stop
$520United Airlines
Sat, Dec 5 - Wed, Dec 9
United Airlines Logo
2:48 pm - 6:13 pm
YOW
-
PWM
3h 25m
1 stop
United Airlines Logo
6:00 am - 1:26 pm
PWM
-
YOW
7h 26m
1 stop
$521United Airlines
Sat, Dec 5 - Wed, Dec 9
Air Canada Logo
5:57 pm - 11:32 pm
YOW
-
PWM
5h 35m
1 stop
Air Canada Logo
6:00 am - 1:10 pm
PWM
-
YOW
7h 10m
2 stops
$581Air Canada
Thu, Aug 20 - Wed, Aug 26
Air Canada Logo
2:48 pm - 10:57 pm
YOW
-
PWM
8h 09m
1 stop
Air Canada Logo
6:00 am - 2:12 pm
PWM
-
YOW
8h 12m
2 stops
$583Air Canada
Sat, Dec 5 - Wed, Dec 9
Air Canada Logo
10:50 am - 6:13 pm
YOW
-
PWM
7h 23m
2 stops
Air Canada Logo
6:00 am - 1:26 pm
PWM
-
YOW
7h 26m
1 stop
$584Air Canada
Sat, Dec 5 - Wed, Dec 9
Air Canada Logo
10:50 am - 6:13 pm
YOW
-
PWM
7h 23m
2 stops
Air Canada Logo
6:00 am - 3:57 pm
PWM
-
YOW
9h 57m
2 stops
$586Air Canada
Sat, Dec 5 - Wed, Dec 9
Air Canada Logo
10:50 am - 6:13 pm
YOW
-
PWM
7h 23m
2 stops
Air Canada Logo
6:00 am - 3:57 pm
PWM
-
YOW
9h 57m
2 stops
$587Air Canada
Sat, Dec 5 - Wed, Dec 9
United Airlines Logo
12:00 pm - 9:23 pm
YOW
-
PWM
9h 23m
2 stops
United Airlines Logo
6:06 am - 4:38 pm
PWM
-
YOW
10h 32m
1 stop
$588United Airlines
Thu, Sep 10 - Thu, Sep 17
Air Canada Logo
9:10 am - 6:13 pm
YOW
-
PWM
9h 03m
2 stops
Air Canada Logo
6:00 am - 2:12 pm
PWM
-
YOW
8h 12m
2 stops
$591Air Canada
Sat, Dec 5 - Wed, Dec 9

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American Airlines flights from Ottawa to Portland, Maine

Our best American Airlines deals on Ottawa to Portland, Maine flight tickets
American Airlines
Sep 10
YOW7:00 amOttawa
8h 51m
2 stops
PWM3:51 pmPortland
Sep 17
PWM4:41 pmPortland
22h 14m
2 stops
YOW2:55 pmOttawa
$503
American Airlines
Sep 10
YOW7:00 amOttawa
16h 59m
3 stops
PWM11:59 pmPortland
Sep 17
PWM4:41 pmPortland
27h 19m
3 stops
YOW8:00 pmOttawa
$938

United Airlines flights from Ottawa to Portland, Maine

Our best United Airlines deals on Ottawa to Portland, Maine flight tickets
United Airlines
Dec 5
YOW2:48 pmOttawa
3h 25m
1 stop
PWM6:13 pmPortland
Dec 9
PWM6:00 amPortland
7h 26m
1 stop
YOW1:26 pmOttawa
$520
United Airlines
Dec 5
YOW2:48 pmOttawa
3h 25m
1 stop
PWM6:13 pmPortland
Dec 9
PWM6:00 amPortland
7h 26m
1 stop
YOW1:26 pmOttawa
$521
United Airlines
Sep 10
YOW12:00 pmOttawa
9h 23m
2 stops
PWM9:23 pmPortland
Sep 17
PWM6:06 amPortland
10h 32m
1 stop
YOW4:38 pmOttawa
$588

momondo Fare Finder

 
Customize your flight search to find flights from Ottawa to Portland, Maine 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, momondo users made 832,500 searches. Data last updated July 27, 2026.
Use the filters below to find and compare flights from Ottawa to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaPortland

YOW - PWM

YOWPWM

Ottawa

Thu 9/10

7:00 am-3:51 pm

2 stops8h 51m

Portland

Thu 9/17

4:41 pm-2:55 pm

2 stops22h 14m

$503
Quickest round-trip

OttawaPortland

YOW - PWM

YOWPWM

Ottawa

Sat 12/5

2:48 pm-6:13 pm

1 stop3h 25m

Portland

Wed 12/9

6:00 am-1:26 pm

1 stop7h 26m

$520

OttawaPortland

YOW - PWM

YOWPWM

Ottawa

Sat 12/5

2:48 pm-6:13 pm

1 stop3h 25m

Portland

Wed 12/9

6:00 am-1:26 pm

1 stop7h 26m

$521

OttawaPortland

YOW - PWM

YOWPWM

Ottawa

Thu 8/20

5:57 pm-11:32 pm

1 stop5h 35m

Portland

Wed 8/26

6:00 am-1:10 pm

2 stops7h 10m

$581

OttawaPortland

YOW - PWM

YOWPWM

Ottawa

Sat 12/5

2:48 pm-10:57 pm

1 stop8h 09m

Portland

Wed 12/9

6:00 am-2:12 pm

2 stops8h 12m

$583

OttawaPortland

YOW - PWM

YOWPWM

Ottawa

Sat 12/5

10:50 am-6:13 pm

2 stops7h 23m

Portland

Wed 12/9

6:00 am-1:26 pm

1 stop7h 26m

$584

OttawaPortland

YOW - PWM

YOWPWM

Ottawa

Sat 12/5

10:50 am-6:13 pm

2 stops7h 23m

Portland

Wed 12/9

6:00 am-3:57 pm

2 stops9h 57m

$586

OttawaPortland

YOW - PWM

YOWPWM

Ottawa

Sat 12/5

10:50 am-6:13 pm

2 stops7h 23m

Portland

Wed 12/9

6:00 am-3:57 pm

2 stops9h 57m

$587

OttawaPortland

YOW - PWM

YOWPWM

Ottawa

Thu 9/10

12:00 pm-9:23 pm

2 stops9h 23m

Portland

Thu 9/17

6:06 am-4:38 pm

1 stop10h 32m

$588

OttawaPortland

YOW - PWM

YOWPWM

Ottawa

Sat 12/5

9:10 am-6:13 pm

2 stops9h 03m

Portland

Wed 12/9

6:00 am-2:12 pm

2 stops8h 12m

$591

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Portland from

How to get the cheapest flight ticket from Ottawa to Portland, Maine

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ottawa to Portland?

American Airlines, Air Canada, and United Airlines are the most popular carriers operating from Ottawa to Portland

What airlines fly to Portland, Maine?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Portland, Maine from Ottawa according to our data. Air Canada is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Portland, Maine. Keep in mind that there are 3 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.

When to book flights from Ottawa to Portland, Maine

Are you open to changing your travel dates? Check out the ideal times to fly from Ottawa to Portland, Maine according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ottawa to Portland, Maine (YOW to PWM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to Portland, Maine

Fastest flight time

3h 25m

Direct flights

None
The fastest flight from Ottawa to Portland, Maine takes 3h 25m
There are no direct flights from Ottawa to Portland, Maine. There are no popular flight routes from Ottawa to Portland, Maine.
Search flight deals

Frequently asked questions about flying from Ottawa to Portland, Maine

  • How far is Ottawa to Portland by plane?

    A flight from Ottawa to Portland will travel around 293.8 mi. In terms of flight time, this usually takes a little over 3h 25m.

  • When did momondo last update prices for flights from Ottawa Airport to Portland Airport?

    Prices for flights from Ottawa Airport to Portland Airport refresh daily.

  • How old do you have to be to fly from Ottawa Airport to Portland Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ottawa Airport to Portland Airport.

  • What documentation or ID do you need to fly to Portland Airport?

    The necessary travel and health documents for your Portland Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Boothbay Harbor
Jackson
Lewiston
Brunswick
Conway
Freeport
Bartlett
Gorham
Auburn
Windham
Bath
Intervale
Oxford
Georgetown
Falmouth
Tamworth

Why use momondo?

Why should I use momondo to find a flight deal from Ottawa to Portland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ottawa to Portland for you.

Can I find flights from Ottawa to Portland with flexible booking policies on momondo?

All flight searches from Ottawa to Portland on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ottawa to Portland?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Portland from Ottawa.

I’m not ready to book a flight from Ottawa to Portland right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ottawa to Portland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portland and let you know when they change.

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