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Cheap flights from Portland to Ottawa from C$ 208

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — YOW
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Portland to Ottawa

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) 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 11 September 2025.

Round-trip from

C$ 405

One-way from

C$ 208

Popular in

April

Cheapest in

August

Average price

C$ 640
Air Canada
  • Air Canada
  • 3/10-11/10
  • 3 total stops
  • 17h 51m total
  • Portland to Ottawa
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Air Canada
  • Air Canada
  • 10/10
  • 1 total stop
  • 9h 43m total
  • Portland to Ottawa
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (C$ 350 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease (C$ 81 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Portland to Ottawa

Cheapest flights from Portland to Ottawa
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 11 September 2025.

Fri 3/101:45 p.m.PDX - YOW
1 stop7h 55mMultiple Airlines
Sat 11/104:05 p.m.YOW - PDX
2 stops9h 56mMultiple Airlines
Deal found 10/9C$ 405
Fri 3/106:15 a.m.PDX - YOW
2 stops10h 14mAir Canada
Sat 11/104:05 p.m.YOW - PDX
2 stops9h 56mAir Canada
Deal found 10/9C$ 409
Wed 1/1012:07 p.m.PDX - YOW
2 stops15h 38mMultiple Airlines
Sat 4/106:00 a.m.YOW - PDX
1 stop10h 05mMultiple Airlines
Deal found 11/9C$ 592
Tue 30/912:07 p.m.PDX - YOW
2 stops26h 13mMultiple Airlines
Sat 4/106:00 a.m.YOW - PDX
1 stop10h 05mMultiple Airlines
Deal found 11/9C$ 635
Sun 7/1210:43 a.m.PDX - YOW
1 stop22h 52mMultiple Airlines
Fri 12/125:40 a.m.YOW - PDX
2 stops17h 55mMultiple Airlines
Deal found 11/9C$ 707
Wed 1/104:07 p.m.PDX - YOW
2 stops14h 51mUnited Airlines
Sat 4/1012:54 p.m.YOW - PDX
2 stops14h 34mUnited Airlines
Deal found 11/9C$ 718

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 629,999 searches. Data last updated 11 September 2025.
Use the filters below to find and compare flights from Portland to Ottawa that are best for you.

Fly from

Portland

Fly to

Ottawa

Route

Depart

Return

Price

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Fri 3/10

1:45 p.m.-12:40 a.m.

1 stop7h 55m

Ottawa

Sat 11/10

4:05 p.m.-11:01 p.m.

2 stops9h 56m

C$ 405

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Fri 3/10

6:15 a.m.-7:29 p.m.

2 stops10h 14m

Ottawa

Sat 11/10

4:05 p.m.-11:01 p.m.

2 stops9h 56m

C$ 409

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Tue 10/3

9:50 a.m.-11:08 p.m.

2 stops10h 18m

Ottawa

Wed 11/3

7:45 a.m.-2:45 p.m.

1 stop10h 00m

C$ 624

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Tue 30/9

12:07 p.m.-5:20 p.m.

2 stops26h 13m

Ottawa

Sat 4/10

6:00 a.m.-1:05 p.m.

1 stop10h 05m

C$ 635

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sun 7/12

10:43 a.m.-12:35 p.m.

1 stop22h 52m

Ottawa

Fri 12/12

5:40 a.m.-8:35 p.m.

2 stops17h 55m

C$ 707

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Wed 1/10

4:07 p.m.-9:58 a.m.

2 stops14h 51m

Ottawa

Sat 4/10

12:54 p.m.-12:28 a.m.

2 stops14h 34m

C$ 718

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Fri 10/10

7:40 p.m.-8:23 a.m.

1 stop9h 43m

C$ 208

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Fri 10/10

10:07 p.m.-6:45 a.m.

2 stops29h 38m

C$ 219

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Tue 25/11

5:20 a.m.-12:42 a.m.

2 stops16h 22m

C$ 279

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Tue 25/11

9:50 a.m.-12:18 a.m.

1 stop11h 28m

C$ 295

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

Showing 1-10 of 14 results
1
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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.
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 Portland to Ottawa

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

Currently, October is the cheapest month in which you can book a flight from Portland to Ottawa (average of C$ 224). Flying from Portland to Ottawa in December is currently the most expensive (average of C$ 326). 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 Portland to Ottawa. 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 Portland to Ottawa?

    Air Canada can get you from Portland to Ottawa in just under 10h 14m. Your travel time can differ by up to . There are 3605 km between Portland and Ottawa.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Portland to Ottawa (average of C$ 224). Flying from Portland to Ottawa in December is currently the most expensive (average of C$ 326). 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

Travelling to a place near Ottawa?

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

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How does Cheapflights help users find flights from Portland to Ottawa?

Cheapflights makes it easy to find Portland to Ottawa flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Portland to Ottawa?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Portland to Ottawa for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Portland to Ottawa with no change fees?

Certainly. Search results for flights to Ottawa from Portland shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Portland to Ottawa become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ottawa from Portland today and book when prices fit your budget.

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