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Cheap flights from Portland to Ottawa from $154

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Ottawa departing on 12/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Portland to Ottawa

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
11:59 pm - 10:26 amPDX-YOW
7h 27m1 stop
Air Canada Logo
7:45 am - 2:40 pmYOW-PDX
9h 55m1 stop
$311Air Canada
Find Deal
Thu, Nov 6 - Sat, Nov 15
United Airlines Logo
11:55 pm - 10:26 amPDX-YOW
7h 31m1 stop
United Airlines Logo
2:15 pm - 8:25 pmYOW-PDX
9h 10m1 stop
$334United Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
Air Canada Logo
9:50 am - 12:18 amPDX-YOW
11h 28m1 stop
Air Canada Logo
2:15 pm - 12:46 amYOW-PDX
13h 31m2 stops
$338Air Canada
Find Deal
Thu, Nov 6 - Sat, Nov 15
United Airlines Logo
1:25 pm - 10:26 amPDX-YOW
18h 01m2 stops
United Airlines Logo
2:15 pm - 8:25 pmYOW-PDX
9h 10m1 stop
$344United Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
United Airlines Logo
1:35 pm - 10:26 amPDX-YOW
17h 51m2 stops
United Airlines Logo
2:15 pm - 10:38 pmYOW-PDX
11h 23m2 stops
$349United Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
Air Canada Logo
7:30 am - 12:18 amPDX-YOW
13h 48m2 stops
Air Canada Logo
2:15 pm - 12:46 amYOW-PDX
13h 31m2 stops
$354Air Canada
Find Deal
Thu, Nov 6 - Sat, Nov 15
American Airlines Logo
12:59 am - 4:49 pmPDX-YOW
12h 50m2 stops
American Airlines Logo
6:45 am - 8:17 pmYOW-PDX
16h 32m2 stops
$669American Airlines
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Tue, Nov 25 - Wed, Dec 3
American Airlines Logo
5:27 am - 12:41 amPDX-YOW
16h 14m3 stops
American Airlines Logo
6:45 am - 8:24 pmYOW-PDX
16h 39m2 stops
$823American Airlines
Find Deal
Thu, Feb 12 - Sun, Feb 15
WestJet Logo
12:55 am - 12:39 amPDX-YOW
20h 44m2 stops
WestJet Logo
5:40 am - 4:51 pmYOW-PDX
38h 11m2 stops
$912WestJet
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Wed, Feb 11 - Sun, Feb 15
WestJet Logo
12:55 am - 12:39 amPDX-YOW
20h 44m2 stops
WestJet Logo
5:40 am - 4:51 pmYOW-PDX
38h 11m2 stops
$953WestJet
Find Deal
Wed, Feb 11 - Sun, Feb 15

Air Canada flights from Portland to Ottawa

Our best Air Canada deals on Portland to Ottawa flight tickets
Air Canada
Nov 6
PDX11:59 pmPortland
7h 27m
1 stop
YOW10:26 amOttawa
Nov 15
YOW7:45 amOttawa
9h 55m
1 stop
PDX2:40 pmPortland
$311
Find similar
Air Canada
Nov 6
PDX9:50 amPortland
11h 28m
1 stop
YOW12:18 amOttawa
Nov 15
YOW2:15 pmOttawa
13h 31m
2 stops
PDX12:46 amPortland
$338
Find similar
Air Canada
Nov 6
PDX7:30 amPortland
13h 48m
2 stops
YOW12:18 amOttawa
Nov 15
YOW2:15 pmOttawa
13h 31m
2 stops
PDX12:46 amPortland
$354
Find similar

United Airlines flights from Portland to Ottawa

Our best United Airlines deals on Portland to Ottawa flight tickets
United Airlines
Mar 10
PDX11:55 pmPortland
7h 31m
1 stop
YOW10:26 amOttawa
Mar 11
YOW2:15 pmOttawa
9h 10m
1 stop
PDX8:25 pmPortland
$334
Find similar
United Airlines
Mar 10
PDX1:25 pmPortland
18h 01m
2 stops
YOW10:26 amOttawa
Mar 11
YOW2:15 pmOttawa
9h 10m
1 stop
PDX8:25 pmPortland
$344
Find similar
United Airlines
Mar 10
PDX1:35 pmPortland
17h 51m
2 stops
YOW10:26 amOttawa
Mar 11
YOW2:15 pmOttawa
11h 23m
2 stops
PDX10:38 pmPortland
$349
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated October 14, 2025.
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

Price

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Thu 11/6

11:59 pm-10:26 am

1 stop7h 27m

Ottawa

Sat 11/15

7:45 am-2:40 pm

1 stop9h 55m

$311

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Tue 3/10

11:55 pm-10:26 am

1 stop7h 31m

Ottawa

Wed 3/11

2:15 pm-8:25 pm

1 stop9h 10m

$334

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Thu 11/6

9:50 am-12:18 am

1 stop11h 28m

Ottawa

Sat 11/15

2:15 pm-12:46 am

2 stops13h 31m

$338

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Tue 3/10

1:25 pm-10:26 am

2 stops18h 01m

Ottawa

Wed 3/11

2:15 pm-8:25 pm

1 stop9h 10m

$344

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Tue 3/10

1:35 pm-10:26 am

2 stops17h 51m

Ottawa

Wed 3/11

2:15 pm-10:38 pm

2 stops11h 23m

$349

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Thu 11/6

7:30 am-12:18 am

2 stops13h 48m

Ottawa

Sat 11/15

2:15 pm-12:46 am

2 stops13h 31m

$354

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Tue 11/25

12:59 am-4:49 pm

2 stops12h 50m

Ottawa

Wed 12/3

6:45 am-8:17 pm

2 stops16h 32m

$669

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Thu 2/12

5:27 am-12:41 am

3 stops16h 14m

Ottawa

Sun 2/15

6:45 am-8:24 pm

2 stops16h 39m

$823

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Wed 2/11

12:55 am-12:39 am

2 stops20h 44m

Ottawa

Sun 2/15

5:40 am-4:51 pm

2 stops38h 11m

$912

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Wed 2/11

12:55 am-12:39 am

2 stops20h 44m

Ottawa

Sun 2/15

5:40 am-4:51 pm

2 stops38h 11m

$953

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Ottawa from

How to get the cheapest flight ticket from Portland to Ottawa

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 month to fly to Ottawa?

In general, August is the cheapest month to fly from Portland to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $388. The month of September is another great option to travel to Ottawa, with average flight prices from Portland averaging around $490.

What is the cheapest day to depart on your flight to Ottawa?

The cheapest day to depart from Portland to Ottawa is on a Saturday. Travelers who choose to depart for Ottawa on a Saturday will often find tickets for as low as $419. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Ottawa on Sunday is $751.

What is the cheapest time of day to depart on your flight to Ottawa?

In the afternoon is the cheapest time of day to fly from Portland to Ottawa when you can find flight prices for as low as $542. Flying to Ottawa in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $662 on average. Flights to Ottawa from Portland in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

How have Portland to Ottawa flight prices changed over time?

As of October 2025, prices for Portland to Ottawa flights are approximately 36% cheaper when compared to flights at the same time last year.

When to book flights from Portland to Ottawa

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

Cheap Portland to Ottawa (PDX to YOW) flight deals and tips

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

Direct flights

None
There are no direct flights from Portland to Ottawa. There are no popular flight routes from Portland to Ottawa.
Search flight deals

  • How far is Portland to Ottawa by plane?

    Portland and Ottawa are 2241.5 mi apart from one another. A reasonable flight in good conditions will take 7h 17m.

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

    Prices for flights from Portland Airport to Ottawa Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Portland Airport to Ottawa Airport?

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Ottawa Airport.

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

    The necessary travel and health documents for your Ottawa 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.

  • What is the most popular airline from Portland to Ottawa?

Best airlines flying from Portland to Ottawa

Compare and see reviews for airlines that fly from Portland to Ottawa with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $315Free CancellationRating
7.1
10,297 reviews
Search Air Canada flights
United AirlinesPriceFrom $365Free CancellationRating
7.4
8,976 reviews
Search United Airlines flights

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Smiths Falls
Calabogie
Brockville
Petawawa
Pembroke
Perth
Prescott
Winchester
Wakefield

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ottawa from Portland.

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

Yes. momondo enables you to select and highlight flights to Ottawa from Portland with this policy.

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

Once all potential Portland to Ottawa flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Portland to Ottawa flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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