Find flights
When to book
FAQs

Cheap flights from Portland to Ottawa from C$ 285

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — YOW
26 Aug — 2 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portland to Ottawa

Enter your travel dates to find the best prices.

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 27 July 2026.

Sat 5/92:30 p.m.
PDX
-
YOW
1 stop7h 10m
Multiple Airlines
Sun 13/95:00 a.m.
YOW
-
PDX
1 stop17h 11m
Multiple Airlines
Deal found 27/7C$ 628
Wed 14/102:30 p.m.
PDX
-
YOW
1 stop12h 05m
Multiple Airlines
Tue 20/107:20 a.m.
YOW
-
PDX
2 stops13h 58m
Multiple Airlines
Deal found 23/7C$ 668
Thu 20/82:30 p.m.
PDX
-
YOW
1 stop7h 10m
Multiple Airlines
Sun 23/87:00 a.m.
YOW
-
PDX
2 stops12h 51m
Multiple Airlines
Deal found 24/7C$ 719
Sun 9/82:30 p.m.
PDX
-
YOW
1 stop7h 10m
Multiple Airlines
Wed 26/87:20 a.m.
YOW
-
PDX
2 stops32h 32m
Multiple Airlines
Deal found 27/7C$ 721
Thu 3/97:03 a.m.
PDX
-
YOW
2 stops14h 37m
Multiple Airlines
Sat 5/97:20 a.m.
YOW
-
PDX
1 stop9h 30m
Multiple Airlines
Deal found 23/7C$ 727
Sun 9/82:30 p.m.
PDX
-
YOW
1 stop7h 10m
Multiple Airlines
Thu 27/87:00 a.m.
YOW
-
PDX
2 stops12h 51m
Multiple Airlines
Deal found 27/7C$ 747

Find 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 27 July 2026.

Round-trip from

C$ 628

One-way from

C$ 285

Popular in

April

Cheapest in

September

Average price

C$ 1,068
Air Canada
  • Air Canada
  • 5/9-13/9
  • 2 total stops
  • 24h 21m total
  • Portland to Ottawa
Search Deals
WestJet
  • WestJet
  • 2/9
  • 1 total stop
  • 7h 10m total
  • Portland to Ottawa
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (C$ 315 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 71 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 27 July 2026.
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

Cheapest round-trip

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Thu 20/8

2:30 p.m.-12:40 a.m.

1 stop7h 10m

Ottawa

Sun 23/8

7:00 a.m.-4:51 p.m.

2 stops12h 51m

C$ 719
Quickest round-trip

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Wed 2/9

2:30 p.m.-12:40 a.m.

1 stop7h 10m

Ottawa

Tue 8/9

7:20 a.m.-1:50 p.m.

1 stop9h 30m

C$ 736

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Thu 10/9

10:10 a.m.-12:53 a.m.

1 stop11h 43m

Ottawa

Thu 17/9

6:55 a.m.-7:11 p.m.

1 stop15h 16m

C$ 809

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Tue 1/9

9:36 p.m.-5:23 p.m.

1 stop16h 47m

Ottawa

Tue 8/9

8:15 p.m.-8:39 p.m.

2 stops51h 24m

C$ 812

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Tue 13/10

8:30 a.m.-9:35 p.m.

1 stop10h 05m

Ottawa

Tue 20/10

6:05 a.m.-9:27 p.m.

1 stop18h 22m

C$ 820

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Wed 14/10

8:30 a.m.-9:35 p.m.

1 stop10h 05m

Ottawa

Tue 20/10

6:25 a.m.-11:33 a.m.

1 stop8h 08m

C$ 820

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Mon 5/10

11:10 p.m.-5:35 p.m.

2 stops15h 25m

Ottawa

Wed 14/10

7:20 a.m.-1:50 p.m.

1 stop9h 30m

C$ 830

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Mon 5/10

8:30 a.m.-9:35 p.m.

1 stop10h 05m

Ottawa

Wed 14/10

6:00 a.m.-3:56 p.m.

3 stops12h 56m

C$ 834

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Mon 10/8

11:30 p.m.-9:56 a.m.

1 stop7h 26m

Ottawa

Thu 27/8

5:10 a.m.-2:51 p.m.

2 stops12h 41m

C$ 861

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Mon 10/8

11:30 p.m.-9:56 a.m.

1 stop7h 26m

Ottawa

Mon 24/8

6:05 p.m.-9:31 a.m.

2 stops18h 26m

C$ 875

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/7

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

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

How much does it cost to fly round-trip from Portland to Ottawa?

Airfare is below average for this route at the moment.

Portland to Ottawa flights typically cost between C$ 731 and C$ 1,484 in September.
The cheapest round-trip price found within the last 5 days was C$ 628 on Multiple Airlines (5 Sep-13 Sep).

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?

    WestJet, Air Canada, and United Airlines can get you from Portland to Ottawa in just under 7h 10m. Your travel time can differ by up to 4h 33m. There are 3605 km between Portland and Ottawa. Both multi-stop and direct flights can be found to your destination and back.

  • 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.

See more FAQs

Travelling to a place near Ottawa?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.