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Look for other cheap flights to Portland

$834 Cheap flights to Portland

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Portland departing on 4/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Australia to Portland

Cheap return flights

Enter your travel dates to find the best prices.
Air Canada Logo
10:45 - 14:40BNE-PDX
21h 55m1 stop
Air Canada Logo
15:15 - 08:45PDX-BNE
23h 30m1 stop
$1,049Air Canada
Find Deal
Fri, 13 Feb - Tue, 17 Feb
Air Canada Logo
10:45 - 14:40BNE-PDX
21h 55m1 stop
Air Canada Logo
19:00 - 08:45PDX-BNE
19h 45m1 stop
$1,051Air Canada
Find Deal
Fri, 13 Feb - Tue, 17 Feb
Air Canada Logo
10:45 - 18:30BNE-PDX
25h 45m1 stop
Air Canada Logo
09:50 - 08:45PDX-BNE
28h 55m1 stop
$1,052Air Canada
Find Deal
Fri, 13 Feb - Tue, 17 Feb
American Airlines Logo
19:40 - 00:16BNE-PDX
22h 36m2 stops
American Airlines Logo
23:59 - 05:00PDX-BNE
35h 01m2 stops
$1,063American Airlines
Find Deal
Fri, 13 Feb - Tue, 17 Feb
American Airlines Logo
19:40 - 22:00BNE-PDX
20h 20m1 stop
American Airlines Logo
11:48 - 06:30PDX-BNE
24h 42m2 stops
$1,065American Airlines
Find Deal
Fri, 13 Feb - Tue, 17 Feb
Qantas Airways Logo
15:35 - 13:25CNS-PDX
38h 50m2 stops
Qantas Airways Logo
14:30 - 11:00PDX-CNS
27h 30m2 stops
$1,564Qantas Airways
Find Deal
Wed, 11 Mar - Sun, 15 Mar
Qantas Airways Logo
14:50 - 13:25CNS-PDX
39h 35m2 stops
Qantas Airways Logo
14:30 - 11:00PDX-CNS
27h 30m2 stops
$1,568Qantas Airways
Find Deal
Wed, 11 Mar - Sun, 15 Mar
United Airlines Logo
10:55 - 20:33MEL-PDX
26h 38m1 stop
United Airlines Logo
15:30 - 08:15PDX-MEL
23h 45m1 stop
$2,443United Airlines
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Fri, 8 May - Tue, 12 May
United Airlines Logo
10:55 - 20:33MEL-PDX
26h 38m1 stop
United Airlines Logo
15:30 - 08:15PDX-MEL
23h 45m1 stop
$2,448United Airlines
Find Deal
Fri, 8 May - Tue, 12 May
Alaska Airlines Logo
23:55 - 21:09PER-PDX
37h 14m2 stops
Alaska Airlines Logo
07:00 - 10:05PDX-PER
35h 05m2 stops
$3,730Alaska Airlines
Find Deal
Wed, 17 Dec - Wed, 24 Dec

momondo Fare Finder

 
Locate flights to Portland that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 78,305 searches and data was last updated on 21 November 2025.
Use the filters below to find and compare flights to Portland that are best for you.

Fly from

Route

Depart

Return

Price

BrisbanePortland

BNE - PDX

BNEPDX

Brisbane

Fri 13/2

10:45-14:40

1 stop21h 55m

Portland

Tue 17/2

15:15-08:45

1 stop23h 30m

$1,049

BrisbanePortland

BNE - PDX

BNEPDX

Brisbane

Fri 13/2

10:45-14:40

1 stop21h 55m

Portland

Tue 17/2

19:00-08:45

1 stop19h 45m

$1,051

BrisbanePortland

BNE - PDX

BNEPDX

Brisbane

Fri 13/2

10:45-18:30

1 stop25h 45m

Portland

Tue 17/2

09:50-08:45

1 stop28h 55m

$1,052

BrisbanePortland

BNE - PDX

BNEPDX

Brisbane

Fri 13/2

19:40-00:16

2 stops22h 36m

Portland

Tue 17/2

23:59-05:00

2 stops35h 01m

$1,063

BrisbanePortland

BNE - PDX

BNEPDX

Brisbane

Fri 13/2

19:40-22:00

1 stop20h 20m

Portland

Tue 17/2

11:48-06:30

2 stops24h 42m

$1,065

CairnsPortland

CNS - PDX

CNSPDX

Cairns

Wed 11/3

15:35-13:25

2 stops38h 50m

Portland

Sun 15/3

14:30-11:00

2 stops27h 30m

$1,564

CairnsPortland

CNS - PDX

CNSPDX

Cairns

Wed 11/3

14:50-13:25

2 stops39h 35m

Portland

Sun 15/3

14:30-11:00

2 stops27h 30m

$1,568

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Fri 8/5

10:55-20:33

1 stop26h 38m

Portland

Tue 12/5

15:30-08:15

1 stop23h 45m

$2,443

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Fri 8/5

10:55-20:33

1 stop26h 38m

Portland

Tue 12/5

15:30-08:15

1 stop23h 45m

$2,448

PerthPortland

PER - PDX

PERPDX

Perth

Wed 17/12

23:55-21:09

2 stops37h 14m

Portland

Wed 24/12

07:00-10:05

2 stops35h 05m

$3,730

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portland from

Portland flights insights and trends

Explore insights for your Portland flight to craft the best travel plan

What is the cheapest month to fly to Portland?

The cheapest month to fly to Portland from Australia is in October. Flight prices, which tend to average around $1,292, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland during the month of October, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $1,469.

What is the cheapest day to depart on your flight to Portland?

On average, the least expensive day to fly to Portland from Australia is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $1,451. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Australia because it is more convenient for both business and leisure travellers. As a result, prices tend to be around $1,874.

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

Flying to Portland from Australia at midday is the least expensive time of day to depart. momondo users have found prices as low as $1,351 when looking at flights departing at midday. Flights to Portland are more costly in the evening, with an average ticket price of $2,662. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Portland?

You are more likely to see cheaper flights to Portland from Australia when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $1,721 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from Australia for as low as $839 on momondo.

Cheapest flights to Portland

Find the cheapest flights to Portland from your nearest city or airport
Find flights from Sydney to Portland
CHEAPEST MONTH TO FLY TO PORTLAND FROM SYDNEYOctober25% cheaperFlying from Sydney to Portland costs on average just $1,292 in October
MOST EXPENSIVE MONTH TO FLY TO PORTLAND FROM SYDNEYDecember30% more expensiveIt costs about $2,247 for flights to Portland from Sydney in December
MOST POPULAR MONTH TO FLY TO PORTLAND FROM SYDNEYMay692% more users visitedMore momondo users searched in flights to Portland from Sydney in May than any other month

Cheap Portland flight deals and tips

Summary info about Portland flight prices, duration and airlines

Best One-Way Price

$644

Best Round-Trip Price

$1,048

Fastest flight time

21h 05m

Popular in

April
The best one-way flight price to Portland from Australia in the last 72 hours is $644 (Brisbane to Portland).
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The best round-trip flight price to Portland from Australia in the last 72 hours is $1,048 (Brisbane to Portland).
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The fastest flight to Portland from Australia takes 21h 05m (Sydney Kingsford Smith to Portland).
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April has the highest demand for flights to Portland, with a 6% price increase on average.
Search Deals

Frequently asked questions about flying to Portland

How far in advance should I book a flight to Portland?

In general, most travellers find the cheapest time to book a flight to Portland is about 38 days prior to their departure date, when tickets on average are $1,721. Keep in mind that you might be able to find cheaper flights to Portland at any time. In fact, our users found flights for as low as $813 in the past 72 hours.

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

Prices for flights to Portland Airport are updated daily.

How many operators does momondo search for flights to Portland Airport?

The number of operators available for flights to Portland Airport is 9 as of November 2025.

How old do you have to be to fly to Portland Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to Portland Airport.

What documentation or ID do you need to fly to Portland Airport?

The travel and health documents you'll need for your trip to Portland 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 licence and a passport that is valid for six months after your intended arrival at Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Portland.

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

Yes. All flights to Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights to Portland?

Once all potential Portland flight options are in front of you momondo lets you sort and filter flights based on preferences such as airline, price and flight times, amongst many other options.

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

Yes momondo offers price alerts on flights to Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Find better results for your trip to Portland

Popular Flights to Portland

Popular routes according to searches in the past day on momondo
Melbourne to Portland Flightsfrom $1,416
Sydney Kingsford Smith to Portland Flightsfrom $977
Perth to Portland Flightsfrom $1,380
Brisbane to Portland Flightsfrom $697
Canberra to Portland Flightsfrom $1,103
Adelaide to Portland Flightsfrom $1,519
Cairns to Portland Flightsfrom $1,012