Cheap flights from Portland to Ottawa from C$ 173

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$ 433Air Canada
Find Deal
Sat, 11 Oct - Sat, 18 Oct
United Airlines Logo
5:15 p.m. - 9:11 a.m.PDX-YOW
12h 56m2 stops
United Airlines Logo
2:48 p.m. - 9:26 p.m.YOW-PDX
9h 38m1 stop
C$ 453United Airlines
Find Deal
Sat, 11 Oct - Sat, 18 Oct
United Airlines Logo
11:55 p.m. - 5:06 p.m.PDX-YOW
14h 11m2 stops
United Airlines Logo
10:25 a.m. - 7:28 p.m.YOW-PDX
12h 03m2 stops
C$ 460United Airlines
Find Deal
Sat, 11 Oct - Sat, 18 Oct
Air Canada Logo
7:00 p.m. - 6:43 a.m.PDX-YOW
8h 43m1 stop
Air Canada Logo
9:15 a.m. - 6:30 p.m.YOW-PDX
12h 15m2 stops
C$ 605Air Canada
Find Deal
Tue, 10 Mar - Wed, 11 Mar
United Airlines Logo
11:55 p.m. - 10:07 a.m.PDX-YOW
7h 12m1 stop
United Airlines Logo
2:05 p.m. - 12:19 a.m.YOW-PDX
13h 14m2 stops
C$ 624United Airlines
Find Deal
Tue, 10 Mar - Wed, 11 Mar
Air Canada Logo
7:00 p.m. - 6:43 a.m.PDX-YOW
8h 43m1 stop
Air Canada Logo
7:45 a.m. - 2:45 p.m.YOW-PDX
10h 00m1 stop
C$ 627Air Canada
Find Deal
Sun, 7 Dec - Fri, 12 Dec
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$ 638Air Canada
Find Deal
Tue, 10 Mar - Wed, 11 Mar
Air Canada Logo
7:00 p.m. - 6:43 a.m.PDX-YOW
8h 43m1 stop
Air Canada Logo
7:15 a.m. - 6:30 p.m.YOW-PDX
14h 15m2 stops
C$ 644Air Canada
Find Deal
Sun, 7 Dec - Fri, 12 Dec
WestJet Logo
1:45 p.m. - 6:45 a.m.PDX-YOW
14h 00m1 stop
WestJet Logo
7:15 p.m. - 1:05 p.m.YOW-PDX
20h 50m1 stop
C$ 799WestJet
Find Deal
Thu, 9 Oct - Sun, 12 Oct
WestJet Logo
1:45 p.m. - 4:19 p.m.PDX-YOW
23h 34m2 stops
WestJet Logo
5:15 p.m. - 1:05 p.m.YOW-PDX
22h 50m2 stops
C$ 800WestJet
Find Deal
Thu, 9 Oct - Sun, 12 Oct

WestJet flights from Portland to Ottawa

Our best WestJet deals on Portland to Ottawa flight tickets
WestJet
9 Oct
PDX1:45 p.m.Portland
14h 00m
1 stop
YOW6:45 a.m.Ottawa
12 Oct
YOW7:15 p.m.Ottawa
20h 50m
1 stop
PDX1:05 p.m.Portland
WestJet
9 Oct
PDX1:45 p.m.Portland
23h 34m
2 stops
YOW4:19 p.m.Ottawa
12 Oct
YOW5:15 p.m.Ottawa
22h 50m
2 stops
PDX1:05 p.m.Portland
WestJet
9 Oct
PDX1:45 p.m.Portland
7h 55m
1 stop
YOW12:40 a.m.Ottawa
12 Oct
YOW7:50 a.m.Ottawa
8h 15m
1 stop
PDX1:05 p.m.Portland

United Airlines flights from Portland to Ottawa

Our best United Airlines deals on Portland to Ottawa flight tickets
United Airlines
11 Oct
PDX5:15 p.m.Portland
12h 56m
2 stops
YOW9:11 a.m.Ottawa
18 Oct
YOW2:48 p.m.Ottawa
9h 38m
1 stop
PDX9:26 p.m.Portland
United Airlines
11 Oct
PDX11:55 p.m.Portland
14h 11m
2 stops
YOW5:06 p.m.Ottawa
18 Oct
YOW10:25 a.m.Ottawa
12h 03m
2 stops
PDX7:28 p.m.Portland
United Airlines
10 Mar
PDX11:55 p.m.Portland
7h 12m
1 stop
YOW10:07 a.m.Ottawa
11 Mar
YOW2:05 p.m.Ottawa
13h 14m
2 stops
PDX12:19 a.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 15 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

Sat 11/10

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

1 stop9h 43m

Ottawa

Sat 18/10

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

1 stop8h 01m

C$ 433

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sat 11/10

5:15 p.m.-9:11 a.m.

2 stops12h 56m

Ottawa

Sat 18/10

2:48 p.m.-9:26 p.m.

1 stop9h 38m

C$ 453

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sat 11/10

11:55 p.m.-5:06 p.m.

2 stops14h 11m

Ottawa

Sat 18/10

10:25 a.m.-7:28 p.m.

2 stops12h 03m

C$ 460

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Tue 10/3

7:00 p.m.-6:43 a.m.

1 stop8h 43m

Ottawa

Wed 11/3

9:15 a.m.-6:30 p.m.

2 stops12h 15m

C$ 605

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Tue 10/3

11:55 p.m.-10:07 a.m.

1 stop7h 12m

Ottawa

Wed 11/3

2:05 p.m.-12:19 a.m.

2 stops13h 14m

C$ 624

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sun 7/12

7:00 p.m.-6:43 a.m.

1 stop8h 43m

Ottawa

Fri 12/12

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

1 stop10h 00m

C$ 627

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$ 638

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sun 7/12

7:00 p.m.-6:43 a.m.

1 stop8h 43m

Ottawa

Fri 12/12

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

2 stops14h 15m

C$ 644

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Thu 9/10

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

1 stop14h 00m

Ottawa

Sun 12/10

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

1 stop20h 50m

C$ 799

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Thu 9/10

1:45 p.m.-4:19 p.m.

2 stops23h 34m

Ottawa

Sun 12/10

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

2 stops22h 50m

C$ 800

Flights are sorted by cheapest round-trip flights 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 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$ 537. 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$ 649.

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$ 570. In the evening is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 604 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
Wed 15/10
Wed 22/10

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