Cheap flights from Portland to Ottawa from C$ 172

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 18/10. 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

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Find the cheapest flights from Portland to Ottawa

Cheap round-trip flights

Air Canada Logo
7:40 p.m. - 8:23 a.m.PDX-YOW
9h 43m1 stop
Air Canada Logo
6:00 p.m. - 11:01 p.m.YOW-PDX
8h 01m1 stop
C$ 417Air Canada
Find Deal
Wed, 1 Oct - Sat, 4 Oct
United Airlines Logo
8:35 a.m. - 10:05 p.m.PDX-YOW
10h 30m2 stops
United Airlines Logo
2:45 p.m. - 8:20 p.m.YOW-PDX
8h 35m1 stop
C$ 450United Airlines
Find Deal
Wed, 1 Oct - Sat, 4 Oct
United Airlines Logo
5:00 a.m. - 10:05 p.m.PDX-YOW
14h 05m2 stops
United Airlines Logo
12:54 p.m. - 12:28 a.m.YOW-PDX
14h 34m2 stops
C$ 457United Airlines
Find Deal
Wed, 1 Oct - Sat, 4 Oct
United Airlines Logo
11:59 p.m. - 5:12 p.m.PDX-YOW
15h 13m1 stop
United Airlines Logo
11:10 a.m. - 10:33 p.m.YOW-PDX
14h 23m1 stop
C$ 552United Airlines
Find Deal
Sat, 1 Nov - Sat, 8 Nov
Air Canada Logo
7:00 p.m. - 9:18 a.m.PDX-YOW
11h 18m2 stops
Air Canada Logo
2:50 p.m. - 9:15 a.m.YOW-PDX
21h 25m2 stops
C$ 559Air Canada
Find Deal
Sat, 1 Nov - Sat, 8 Nov
Air Canada Logo
7:00 p.m. - 4:45 p.m.PDX-YOW
18h 45m1 stop
Air Canada Logo
7:15 a.m. - 6:30 p.m.YOW-PDX
14h 15m2 stops
C$ 564Air Canada
Find Deal
Sat, 1 Nov - Sat, 8 Nov
United Airlines Logo
11:55 p.m. - 1:18 p.m.PDX-YOW
10h 23m2 stops
United Airlines Logo
5:14 p.m. - 10:08 p.m.YOW-PDX
7h 54m1 stop
C$ 620United Airlines
Find Deal
Tue, 10 Mar - Wed, 11 Mar
Air Canada Logo
7:00 p.m. - 11:18 a.m.PDX-YOW
13h 18m2 stops
Air Canada Logo
2:50 p.m. - 9:15 a.m.YOW-PDX
21h 25m2 stops
C$ 634Air Canada
Find Deal
Tue, 10 Mar - Wed, 11 Mar
WestJet Logo
12:40 a.m. - 12:40 a.m.PDX-YOW
45h 00m2 stops
WestJet Logo
6:00 a.m. - 10:40 p.m.YOW-PDX
19h 40m2 stops
C$ 1,182WestJet
Find Deal
Wed, 15 Oct - Mon, 20 Oct
WestJet Logo
11:10 a.m. - 12:42 a.m.PDX-YOW
34h 32m3 stops
WestJet Logo
6:00 a.m. - 4:45 p.m.YOW-PDX
13h 45m2 stops
C$ 1,230WestJet
Find Deal
Fri, 31 Oct - Fri, 7 Nov

Air Canada flights from Portland to Ottawa

Our best Air Canada deals on Portland to Ottawa flight tickets
Air Canada
1 Oct
PDX7:40 p.m.Portland
9h 43m
1 stop
YOW8:23 a.m.Ottawa
4 Oct
YOW6:00 p.m.Ottawa
8h 01m
1 stop
PDX11:01 p.m.Portland
Air Canada
1 Nov
PDX7:00 p.m.Portland
11h 18m
2 stops
YOW9:18 a.m.Ottawa
8 Nov
YOW2:50 p.m.Ottawa
21h 25m
2 stops
PDX9:15 a.m.Portland
Air Canada
1 Nov
PDX7:00 p.m.Portland
18h 45m
1 stop
YOW4:45 p.m.Ottawa
8 Nov
YOW7:15 a.m.Ottawa
14h 15m
2 stops
PDX6:30 p.m.Portland

United Airlines flights from Portland to Ottawa

Our best United Airlines deals on Portland to Ottawa flight tickets
United Airlines
1 Oct
PDX8:35 a.m.Portland
10h 30m
2 stops
YOW10:05 p.m.Ottawa
4 Oct
YOW2:45 p.m.Ottawa
8h 35m
1 stop
PDX8:20 p.m.Portland
United Airlines
1 Oct
PDX5:00 a.m.Portland
14h 05m
2 stops
YOW10:05 p.m.Ottawa
4 Oct
YOW12:54 p.m.Ottawa
14h 34m
2 stops
PDX12:28 a.m.Portland
United Airlines
1 Nov
PDX11:59 p.m.Portland
15h 13m
1 stop
YOW5:12 p.m.Ottawa
8 Nov
YOW11:10 a.m.Ottawa
14h 23m
1 stop
PDX10:33 p.m.Portland

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 96,600 searches. Data last updated 17 September 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

Wed 1/10

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

1 stop9h 43m

Ottawa

Sat 4/10

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

1 stop8h 01m

C$ 417

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Wed 1/10

8:35 a.m.-10:05 p.m.

2 stops10h 30m

Ottawa

Sat 4/10

2:45 p.m.-8:20 p.m.

1 stop8h 35m

C$ 450

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Wed 1/10

5:00 a.m.-10:05 p.m.

2 stops14h 05m

Ottawa

Sat 4/10

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

2 stops14h 34m

C$ 457

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sat 1/11

11:59 p.m.-5:12 p.m.

1 stop15h 13m

Ottawa

Sat 8/11

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

1 stop14h 23m

C$ 552

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sat 1/11

7:00 p.m.-9:18 a.m.

2 stops11h 18m

Ottawa

Sat 8/11

2:50 p.m.-9:15 a.m.

2 stops21h 25m

C$ 559

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sat 1/11

7:00 p.m.-4:45 p.m.

1 stop18h 45m

Ottawa

Sat 8/11

7:15 a.m.-6:30 p.m.

2 stops14h 15m

C$ 564

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Tue 10/3

11:55 p.m.-1:18 p.m.

2 stops10h 23m

Ottawa

Wed 11/3

5:14 p.m.-10:08 p.m.

1 stop7h 54m

C$ 620

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Tue 10/3

7:00 p.m.-11:18 a.m.

2 stops13h 18m

Ottawa

Wed 11/3

2:50 p.m.-9:15 a.m.

2 stops21h 25m

C$ 634

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Wed 15/10

12:40 a.m.-12:40 a.m.

2 stops45h 00m

Ottawa

Mon 20/10

6:00 a.m.-10:40 p.m.

2 stops19h 40m

C$ 1,182

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Fri 31/10

11:10 a.m.-12:42 a.m.

3 stops34h 32m

Ottawa

Fri 7/11

6:00 a.m.-4:45 p.m.

2 stops13h 45m

C$ 1,230

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 typical price of a round-trip flight between Portland and Ottawa?

What is the cheapest month to fly to Ottawa?

The month of August is, on average, the cheapest month to fly to Ottawa from Portland, with most prices found around C$ 534. If you aren’t able to travel to Ottawa during the month of August, then flying in October is also cheap. Prices for this month can be found on momondo for an average of C$ 645.

What is the cheapest time of day to depart on your flight to Ottawa?

Our most recent data shows that the best time of day to fly to Ottawa is in the morning. Flights from Portland to Ottawa during this time can be as low as C$ 566. In the evening is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 600 per ticket.

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.
  • How far is Portland to Ottawa by plane?

    The straight-line distance from Portland to Ottawa is 3607.3 km. Typically, this will take 6h 39m by plane in normal conditions.

  • When did momondo last update prices for flights from Portland Airport to Ottawa Airport?

    Prices for flights from Portland Airport to Ottawa Airport refresh daily.

  • 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 travel and health documents you'll need for your trip to Ottawa Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ottawa Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Ottawa?

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

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Ottawa?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to Ottawa . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Portland to Ottawa with flexible booking policies on momondo?

Flights from Portland to Ottawa with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Portland to Ottawa?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Ottawa.

I’m not ready to book a flight from Portland to Ottawa right now. Can momondo alert me if prices change?

Price alerts on flights to Ottawa from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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1 adult
Fri 17/10
Fri 24/10

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