Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Portland to Ottawa from $125

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 10/18. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Portland to Ottawa

Cheap round-trip flights

Air Canada Logo
7:40 pm - 8:23 amPDX-YOW
9h 43m1 stop
Air Canada Logo
6:00 pm - 11:01 pmYOW-PDX
8h 01m1 stop
$313Air Canada
Find Deal
Sat, Oct 11 - Sat, Oct 18
United Airlines Logo
5:15 pm - 9:11 amPDX-YOW
12h 56m2 stops
United Airlines Logo
2:48 pm - 9:26 pmYOW-PDX
9h 38m1 stop
$327United Airlines
Find Deal
Sat, Oct 11 - Sat, Oct 18
United Airlines Logo
11:55 pm - 5:06 pmPDX-YOW
14h 11m2 stops
United Airlines Logo
10:25 am - 7:28 pmYOW-PDX
12h 03m2 stops
$332United Airlines
Find Deal
Sat, Oct 11 - Sat, Oct 18
Air Canada Logo
7:00 pm - 6:43 amPDX-YOW
8h 43m1 stop
Air Canada Logo
9:15 am - 6:30 pmYOW-PDX
12h 15m2 stops
$437Air Canada
Find Deal
Tue, Mar 10 - Wed, Mar 11
United Airlines Logo
11:55 pm - 10:07 amPDX-YOW
7h 12m1 stop
United Airlines Logo
2:05 pm - 12:19 amYOW-PDX
13h 14m2 stops
$451United Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
Air Canada Logo
7:00 pm - 6:43 amPDX-YOW
8h 43m1 stop
Air Canada Logo
7:45 am - 2:45 pmYOW-PDX
10h 00m1 stop
$453Air Canada
Find Deal
Sun, Dec 7 - Fri, Dec 12
Air Canada Logo
7:00 pm - 11:18 amPDX-YOW
13h 18m2 stops
Air Canada Logo
2:50 pm - 9:15 amYOW-PDX
21h 25m2 stops
$461Air Canada
Find Deal
Tue, Mar 10 - Wed, Mar 11
Air Canada Logo
7:00 pm - 6:43 amPDX-YOW
8h 43m1 stop
Air Canada Logo
7:15 am - 6:30 pmYOW-PDX
14h 15m2 stops
$465Air Canada
Find Deal
Sun, Dec 7 - Fri, Dec 12
WestJet Logo
1:45 pm - 6:45 amPDX-YOW
14h 00m1 stop
WestJet Logo
7:15 pm - 1:05 pmYOW-PDX
20h 50m1 stop
$577WestJet
Find Deal
Thu, Oct 9 - Sun, Oct 12
WestJet Logo
1:45 pm - 4:19 pmPDX-YOW
23h 34m2 stops
WestJet Logo
5:15 pm - 1:05 pmYOW-PDX
22h 50m2 stops
$578WestJet
Find Deal
Thu, Oct 9 - Sun, Oct 12

United Airlines flights from Portland to Ottawa

Our best United Airlines deals on Portland to Ottawa flight tickets
United Airlines
Oct 11
PDX5:15 pmPortland
12h 56m
2 stops
YOW9:11 amOttawa
Oct 18
YOW2:48 pmOttawa
9h 38m
1 stop
PDX9:26 pmPortland
$327
Find similar
United Airlines
Oct 11
PDX11:55 pmPortland
14h 11m
2 stops
YOW5:06 pmOttawa
Oct 18
YOW10:25 amOttawa
12h 03m
2 stops
PDX7:28 pmPortland
$332
Find similar
United Airlines
Mar 10
PDX11:55 pmPortland
7h 12m
1 stop
YOW10:07 amOttawa
Mar 11
YOW2:05 pmOttawa
13h 14m
2 stops
PDX12:19 amPortland
$451
Find similar

Air Canada flights from Portland to Ottawa

Our best Air Canada deals on Portland to Ottawa flight tickets
Air Canada
Oct 11
PDX7:40 pmPortland
9h 43m
1 stop
YOW8:23 amOttawa
Oct 18
YOW6:00 pmOttawa
8h 01m
1 stop
PDX11:01 pmPortland
$313
Find similar
Air Canada
Mar 10
PDX7:00 pmPortland
8h 43m
1 stop
YOW6:43 amOttawa
Mar 11
YOW9:15 amOttawa
12h 15m
2 stops
PDX6:30 pmPortland
$437
Find similar
Air Canada
Dec 7
PDX7:00 pmPortland
8h 43m
1 stop
YOW6:43 amOttawa
Dec 12
YOW7:45 amOttawa
10h 00m
1 stop
PDX2:45 pmPortland
$453
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 September 15, 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

Sat 10/11

7:40 pm-8:23 am

1 stop9h 43m

Ottawa

Sat 10/18

6:00 pm-11:01 pm

1 stop8h 01m

$313

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sat 10/11

5:15 pm-9:11 am

2 stops12h 56m

Ottawa

Sat 10/18

2:48 pm-9:26 pm

1 stop9h 38m

$327

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sat 10/11

11:55 pm-5:06 pm

2 stops14h 11m

Ottawa

Sat 10/18

10:25 am-7:28 pm

2 stops12h 03m

$332

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Tue 3/10

7:00 pm-6:43 am

1 stop8h 43m

Ottawa

Wed 3/11

9:15 am-6:30 pm

2 stops12h 15m

$437

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Tue 3/10

11:55 pm-10:07 am

1 stop7h 12m

Ottawa

Wed 3/11

2:05 pm-12:19 am

2 stops13h 14m

$451

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sun 12/7

7:00 pm-6:43 am

1 stop8h 43m

Ottawa

Fri 12/12

7:45 am-2:45 pm

1 stop10h 00m

$453

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Tue 3/10

7:00 pm-11:18 am

2 stops13h 18m

Ottawa

Wed 3/11

2:50 pm-9:15 am

2 stops21h 25m

$461

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sun 12/7

7:00 pm-6:43 am

1 stop8h 43m

Ottawa

Fri 12/12

7:15 am-6:30 pm

2 stops14h 15m

$465

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Thu 10/9

1:45 pm-6:45 am

1 stop14h 00m

Ottawa

Sun 10/12

7:15 pm-1:05 pm

1 stop20h 50m

$577

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Thu 10/9

1:45 pm-4:19 pm

2 stops23h 34m

Ottawa

Sun 10/12

5:15 pm-1:05 pm

2 stops22h 50m

$578

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 October is another great option to travel to Ottawa, with average flight prices from Portland averaging around $469.

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 September 2025, prices for Portland to Ottawa flights are approximately 34% 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 6h 39m.

  • 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 $333Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
United AirlinesPriceFrom $365Free CancellationRating
7.4
8,929 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
Pembroke
Petawawa
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.

An easier way to manage your Ottawa trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 10/15
Wed 10/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada