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Look for other cheap flights to Portland

$550 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 20/3. 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.
American Airlines Logo
07:00 - 17:08
BNE
-
PDX
27h 08m
2 stops
American Airlines Logo
23:59 - 05:30
PDX
-
BNE
36h 31m
1 stop
$1,011American Airlines
Wed, 18 Mar - Sun, 22 Mar
American Airlines Logo
19:40 - 21:52
BNE
-
PDX
19h 12m
1 stop
American Airlines Logo
05:40 - 05:00
PDX
-
BNE
30h 20m
2 stops
$1,049American Airlines
Fri, 20 Mar - Mon, 6 Apr
United Airlines Logo
11:40 - 12:38
BNE
-
PDX
18h 58m
1 stop
United Airlines Logo
15:45 - 06:30
PDX
-
BNE
21h 45m
1 stop
$1,071United Airlines
Mon, 2 Mar - Sat, 14 Mar
United Airlines Logo
10:40 - 12:35
BNE
-
PDX
42h 55m
2 stops
United Airlines Logo
19:14 - 06:30
PDX
-
BNE
18h 16m
1 stop
$1,073United Airlines
Mon, 23 Mar - Mon, 30 Mar
Air Canada Logo
09:20 - 14:45
SYD
-
PDX
22h 25m
1 stop
Air Canada Logo
10:10 - 07:20
PDX
-
SYD
28h 10m
1 stop
$1,172Air Canada
Thu, 14 May - Mon, 21 Sep
Air Canada Logo
09:20 - 14:40
SYD
-
PDX
22h 20m
1 stop
Air Canada Logo
09:50 - 07:20
PDX
-
SYD
28h 30m
1 stop
$1,180Air Canada
Thu, 16 Apr - Thu, 30 Apr
Delta Logo
09:10 - 10:01
MEL
-
PDX
18h 51m
1 stop
Delta Logo
13:45 - 07:50
PDX
-
MEL
49h 05m
2 stops
$1,271Delta
Sun, 22 Mar - Thu, 11 Jun
Delta Logo
10:10 - 18:49
MEL
-
PDX
27h 39m
1 stop
Delta Logo
05:45 - 08:00
PDX
-
MEL
31h 15m
2 stops
$1,272Delta
Fri, 20 Feb - Mon, 23 Feb
Qantas Airways Logo
07:50 - 17:13
ADL
-
PDX
27h 53m
2 stops
Qantas Airways Logo
10:31 - 09:25
PDX
-
ADL
29h 24m
2 stops
$1,461Qantas Airways
Tue, 3 Mar - Tue, 31 Mar
Qantas Airways Logo
11:00 - 17:13
CBR
-
PDX
25h 13m
2 stops
Qantas Airways Logo
17:39 - 13:05
PDX
-
CBR
25h 26m
2 stops
$1,617Qantas Airways
Thu, 5 Mar - Thu, 12 Mar

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 6 February 2026.
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

Wed 18/3

07:00-17:08

2 stops27h 08m

Portland

Sun 22/3

23:59-05:30

1 stop36h 31m

$1,011

BrisbanePortland

BNE - PDX

BNEPDX

Brisbane

Fri 20/3

19:40-21:52

1 stop19h 12m

Portland

Mon 6/4

05:40-05:00

2 stops30h 20m

$1,049

BrisbanePortland

BNE - PDX

BNEPDX

Brisbane

Mon 2/3

11:40-12:38

1 stop18h 58m

Portland

Sat 14/3

15:45-06:30

1 stop21h 45m

$1,071

BrisbanePortland

BNE - PDX

BNEPDX

Brisbane

Mon 23/3

10:40-12:35

2 stops42h 55m

Portland

Mon 30/3

19:14-06:30

1 stop18h 16m

$1,073

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Thu 14/5

09:20-14:45

1 stop22h 25m

Portland

Mon 21/9

10:10-07:20

1 stop28h 10m

$1,172

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Thu 16/4

09:20-14:40

1 stop22h 20m

Portland

Thu 30/4

09:50-07:20

1 stop28h 30m

$1,180

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Sun 22/3

09:10-10:01

1 stop18h 51m

Portland

Thu 11/6

13:45-07:50

2 stops49h 05m

$1,271

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Fri 20/2

10:10-18:49

1 stop27h 39m

Portland

Mon 23/2

05:45-08:00

2 stops31h 15m

$1,272

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Tue 3/3

07:50-17:13

2 stops27h 53m

Portland

Tue 31/3

10:31-09:25

2 stops29h 24m

$1,461

CanberraPortland

CBR - PDX

CBRPDX

Canberra

Thu 5/3

11:00-17:13

2 stops25h 13m

Portland

Thu 12/3

17:39-13:05

2 stops25h 26m

$1,617

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $1,198, 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 $1,365.

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 $1,528 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 $1,208 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 SYDNEYOctober22% cheaperFlying from Sydney to Portland costs on average just $1,198 in October
MOST EXPENSIVE MONTH TO FLY TO PORTLAND FROM SYDNEYMay11% more expensiveIt costs about $1,705 for flights to Portland from Sydney in May
MOST POPULAR MONTH TO FLY TO PORTLAND FROM SYDNEYMay614% 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

$550

Best Round-Trip Price

$1,011

Fastest flight time

24h 53m

Popular in

May
The best one-way flight price to Portland from Australia in the last 72 hours is $550 (Brisbane to Portland).
Search Deals
The best round-trip flight price to Portland from Australia in the last 72 hours is $1,011 (Brisbane to Portland).
Search Deals
The fastest flight to Portland from Australia takes 24h 53m (Melbourne to Portland).
Search Deals
May has the highest demand for flights to Portland, with a 20% 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 39 days prior to their departure date, when tickets on average are $1,528. 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 $753 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 8 as of February 2026.

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
Sydney Kingsford Smith to Portland Flightsfrom $857
Melbourne to Portland Flightsfrom $862
Brisbane to Portland Flightsfrom $757
Cairns to Portland Flightsfrom $1,320
Adelaide to Portland Flightsfrom $1,016
Canberra to Portland Flightsfrom $1,129
Perth to Portland Flightsfrom $1,197