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Cheap flights from Portland to Ottawa from C$ 405

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 15/8. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — YOW
3 Aug — 10 Aug1
1 adult

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 29 July 2025.

Round-trip from

C$ 438

One-way from

C$ 405

Popular in

April

Cheapest in

August

Average price

C$ 872
WestJet
  • WestJet
  • 2/9-20/9
  • 2 total stops
  • 24h 05m total
  • Portland to Ottawa
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15/8
  • 15/8
  • 2 total stops
  • 49h 56m total
  • Portland to Ottawa
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (C$ 355 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease (C$ 80 potential savings vs. average RT price).
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Average for round-trip flights in July 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 29 July 2025.

Tue 2/91:45 p.m.PDX - YOW
1 stop14h 00mWestJet
Sat 20/96:00 a.m.YOW - PDX
1 stop10h 05mWestJet
Deal found 28/7C$ 438
Sat 6/97:40 p.m.PDX - YOW
1 stop9h 43mAir Canada
Sat 20/96:00 p.m.YOW - PDX
1 stop8h 01mAir Canada
Deal found 28/7C$ 468
Fri 7/118:20 a.m.PDX - YOW
1 stop12h 34mUnited Airlines
Tue 11/1111:10 a.m.YOW - PDX
1 stop14h 23mUnited Airlines
Deal found 27/7C$ 480
Wed 24/912:07 p.m.PDX - YOW
2 stops15h 38mMultiple Airlines
Sun 28/97:15 p.m.YOW - PDX
1 stop20h 50mMultiple Airlines
Deal found 28/7C$ 578

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 29 July 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

Tue 2/9

1:45 p.m.-6:45 a.m.

1 stop14h 00m

Ottawa

Sat 20/9

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

1 stop10h 05m

C$ 438

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sat 6/9

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

1 stop9h 43m

Ottawa

Sat 20/9

6:00 p.m.-11:01 p.m.

1 stop8h 01m

C$ 468

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Fri 7/11

8:20 a.m.-11:54 p.m.

1 stop12h 34m

Ottawa

Tue 11/11

11:10 a.m.-10:33 p.m.

1 stop14h 23m

C$ 480

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Wed 24/9

12:07 p.m.-6:45 a.m.

2 stops15h 38m

Ottawa

Sun 28/9

7:15 p.m.-1:05 p.m.

1 stop20h 50m

C$ 578

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Fri 15/8

7:52 p.m.-12:48 a.m.

2 stops49h 56m

C$ 405

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Mon 4/8

7:40 p.m.-8:19 a.m.

1 stop9h 39m

C$ 521

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Wed 13/8

12:46 a.m.-12:22 a.m.

2 stops20h 36m

C$ 619

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/7

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.

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ottawa. Reviews last updated 29 July 2025.
Get a feel of what it's like to fly with United Airlines,WestJet, andAir Canada from Portland to Ottawa by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,899 reviews
Check prices

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,899 reviews
United Airlines
7.4
Good
8,899 reviews
Check prices

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
WestJet
7.2
Good
2,973 reviews
United Airlines
7.4
Good
8,899 reviews
Check prices

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.1
Good
9,822 reviews
United Airlines
7.4
Good
8,899 reviews
Check prices

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

  • What are the cheapest airlines flying from Portland to Ottawa round-trip?

    Flying on WestJet is currently your cheapest option to Ottawa, with prices starting at C$ 438. Additional round-trip tickets that might be worth considering are offered by Air Canada and United Airlines, with the lowest prices starting at C$ 468 and C$ 480, respectively. You may be able to fly from Portland to Ottawa for 51% less than the average price by searching for these airlines.

  • 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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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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