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Cheap flights from Portland to Ottawa from C$ 171

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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — YOW
17 Jun — 24 Jun1
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 12 June 2025.

Round-trip from

C$ 409

One-way from

C$ 171

Popular in

April

Cheapest in

September

Average price

C$ 740
Air Canada
  • Air Canada
  • 12/7-22/7
  • 2 total stops
  • 17h 40m total
  • Portland to Ottawa
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WestJet
  • WestJet
  • 5/8
  • 1 total stop
  • 7h 56m total
  • Portland to Ottawa
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (C$ 353 potential increase over avg. RT price).
Search Deals
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 June 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 12 June 2025.

Sat 12/77:40 p.m.PDX - YOW
1 stop9h 39mAir Canada
Tue 22/76:00 p.m.YOW - PDX
1 stop8h 01mAir Canada
Deal found 10/6C$ 409
Wed 13/81:45 p.m.PDX - YOW
2 stops12h 40mWestJet
Sun 17/85:15 p.m.YOW - PDX
2 stops22h 50mWestJet
Deal found 9/6C$ 420
Sat 12/711:20 p.m.PDX - YOW
1 stop16h 32mUnited Airlines
Mon 21/76:33 a.m.YOW - PDX
1 stop15h 12mUnited Airlines
Deal found 12/6C$ 429
Fri 18/711:59 p.m.PDX - YOW
2 stops14h 06mMultiple Airlines
Sat 26/78:45 p.m.YOW - PDX
2 stops15h 45mMultiple Airlines
Deal found 11/6C$ 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 12 June 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

Sat 12/7

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

1 stop9h 39m

Ottawa

Tue 22/7

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

1 stop8h 01m

C$ 409

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Wed 13/8

1:45 p.m.-5:25 a.m.

2 stops12h 40m

Ottawa

Sun 17/8

5:15 p.m.-1:05 p.m.

2 stops22h 50m

C$ 420

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sat 12/7

11:20 p.m.-6:52 p.m.

1 stop16h 32m

Ottawa

Mon 21/7

6:33 a.m.-6:45 p.m.

1 stop15h 12m

C$ 429

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Fri 18/7

11:59 p.m.-5:05 p.m.

2 stops14h 06m

Ottawa

Sat 26/7

8:45 p.m.-9:30 a.m.

2 stops15h 45m

C$ 578

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Tue 5/8

1:45 p.m.-12:41 a.m.

1 stop7h 56m

C$ 171

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Mon 4/8

11:20 p.m.-2:13 p.m.

1 stop11h 53m

C$ 178

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Fri 26/9

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

1 stop9h 43m

C$ 228

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Tue 5/8

5:40 p.m.-5:25 a.m.

3 stops32h 45m

C$ 253

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

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.

Rainfall in Ottawa by month

Plan your trip to Ottawa by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ottawa ranges from 50.0 - 93.0 mm per month. June is typically the wettest month, when rainfall can reach 93.0 mm. February is typically the driest time to visit Ottawa when rainfall is around 50.0 mm.

Temperature in Ottawa by month

Plan your trip to Ottawa by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ottawa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -10.0 C).

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 12 June 2025.
United Airlines
7.4
Good
8,790 reviews
Check prices

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.0

Boarding

7.7

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
8,790 reviews
United Airlines
7.4
Good
8,790 reviews
Check prices

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.0

Boarding

7.7

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
2,868 reviews
United Airlines
7.4
Good
8,790 reviews
Check prices

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.0

Boarding

7.7

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
9,537 reviews
United Airlines
7.4
Good
8,790 reviews
Check prices

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.0

Boarding

7.7

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 Air Canada is currently your cheapest option to Ottawa, with prices starting at C$ 409. Additional round-trip tickets that might be worth considering are offered by WestJet and United Airlines, with the lowest prices starting at C$ 420 and C$ 429, respectively. You may be able to fly from Portland to Ottawa for 54% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Portland to Ottawa one-way?

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as C$ 171. Users have also found prices from C$ 178 and C$ 228 on United Airlines and Air Canada, respectively.

  • 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 Portland?

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

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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.

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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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