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Cheap flights from Portland to Brisbane from $872

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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BNE
7 Sep — 14 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portland to Brisbane

Enter your travel dates to find the best prices.

Cheapest flights from Portland to Brisbane
Explore the most affordable flight options available from Portland to Brisbane. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 August 2026.

Mon 31/815:30 -
1 stop22h 35m
Wed 18/1110:45 -
1 stop25h 46m
Deal found 5/8$1,360
Sun 25/1019:10 -
1 stop19h 35m
Wed 25/1110:45 -
1 stop21h 56m
Deal found 5/8$1,375
Tue 15/915:30 -
1 stop22h 35m
Tue 6/1010:00 -
1 stop16h 31m
Deal found 7/8$1,376
Mon 31/819:45 -
1 stop18h 20m
Wed 18/1106:10 -
2 stops21h 16m
Deal found 4/8$1,403
Sun 25/1019:10 -
2 stops23h 20m
Tue 24/1110:45 -
1 stop21h 56m
Deal found 5/8$1,409
Wed 16/919:45 -
1 stop18h 20m
Wed 7/1010:00 -
1 stop16h 31m
Deal found 6/8$1,413
Mon 7/915:30 -
1 stop22h 35m
Mon 14/910:00 -
1 stop16h 31m
Deal found 7/8$1,414
Mon 17/819:45 -
2 stops23h 10m
Sun 23/810:00 -
1 stop16h 31m
Deal found 6/8$1,420
Tue 8/919:45 -
1 stop18h 20m
Thu 1/1010:00 -
1 stop16h 31m
Deal found 6/8$1,427

Find flight deals from Portland to Brisbane

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Brisbane (BNE). 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 8 August 2026.

Round-trip from

$1,360

One-way from

$872

Popular in

July

Cheapest in

June

Average price

$1,594
Air Canada
  • Air Canada
  • 20/10-3/11
  • 2 total stops
  • 44h 36m total
  • Portland to Brisbane
Search Deals
Air Canada
  • Air Canada
  • 2/12
  • 1 total stop
  • 19h 35m total
  • Portland to Brisbane
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($73 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($58 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portland to Brisbane 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 647,157 searches. Data last updated 8 August 2026.
Use the filters below to find and compare flights from Portland to Brisbane that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Mon 7/9

15:30-07:05

1 stop22h 35m

Brisbane

Mon 14/9

10:00-09:31

1 stop16h 31m

$1,414

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Mon 7/9

15:30-07:05

1 stop22h 35m

Brisbane

Mon 14/9

20:40-09:31

2 stops29h 51m

$1,457

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Sat 19/9

15:30-07:05

1 stop22h 35m

Brisbane

Mon 28/9

20:40-09:31

2 stops29h 51m

$1,457

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Fri 30/10

18:18-05:50

1 stop18h 32m

Brisbane

Fri 13/11

13:10-16:35

1 stop21h 25m

$1,546

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Fri 30/10

13:05-07:30

1 stop25h 25m

Brisbane

Fri 13/11

10:40-18:14

2 stops25h 34m

$1,599

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Thu 10/9

07:03-05:00

1 stop28h 57m

Brisbane

Mon 28/9

20:35-21:55

1 stop18h 20m

$1,657

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Sun 24/1

19:40-08:30

2 stops42h 50m

Brisbane

Fri 5/2

10:40-12:18

1 stop19h 38m

$1,688

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Sun 24/1

19:40-08:30

2 stops42h 50m

Brisbane

Sun 7/2

10:40-12:18

1 stop19h 38m

$1,688

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Sun 25/10

23:30-06:30

2 stops38h 00m

Brisbane

Sat 21/11

11:40-10:18

1 stop16h 38m

$1,702

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Fri 18/9

17:53-15:15

2 stops28h 22m

Brisbane

Tue 6/10

20:35-22:49

1 stop19h 14m

$1,708

Flights are sorted by cheapest return flights first.

Deals found on 6/8

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Best time to book a flight from Portland to Brisbane

Have a flexible travel schedule? Discover the best time to fly to Brisbane from Portland with our price prediction graph.
Estimated return 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 Brisbane

What is the cheapest month to book a flight from Portland to Brisbane?

Currently, June is the cheapest month in which you can book a flight from Portland to Brisbane (average of $1,182). Flying from Portland to Brisbane in July is currently the most expensive (average of $1,963). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Portland to Brisbane?

Airfare is below average for this route at the moment.

Portland to Brisbane flights typically cost between $1,440 and $1,694 in August.
The cheapest return price found within the last 5 days was $1,360 on Air Canada (31 Aug–18 Nov).

Reviews of airlines servicing Brisbane

Get insights into the airlines that provide service to Brisbane. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Brisbane. Reviews last updated 8 August 2026.
Check out reviews from past customers who have flown with United Airlines from Portland to Brisbane to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,086 reviews
Check prices

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
United Airlines
7.4
Good
10,086 reviews
United Airlines
7.4
Good
10,086 reviews
Check prices

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

Related info for your journey

Find useful and relevant information for your journey from Portland to Brisbane. 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 Brisbane?

    Departing from Portland to Brisbane will take you 18h 32m. Airlines will cover a distance of 11719 km. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Portland to Brisbane round-trip?

    Flying on United Airlines is currently your cheapest option to Brisbane, with prices starting at $727. United Airlines is priced at 52% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Portland to Brisbane that include hotel bookings?

    Yes. In addition to deals on Portland to Brisbane flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Portland to Brisbane?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Brisbane.

  • Can I find deals for business class flights from Portland to Brisbane?

    Yes. Cheapflights offers flight deals from Portland to Brisbane by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Brisbane?

    Currently, June is the cheapest month in which you can book a flight from Portland to Brisbane (average of $1,182). Flying from Portland to Brisbane in July is currently the most expensive (average of $1,963). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Brisbane?

Book flights to Brisbane if you plan to visit one of these locations
Redcliffe
Ipswich
Caboolture

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Alternative routes for Portland to Brisbane

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Coolangatta flights

Top airline flying from Portland to Brisbane

Discover the top airline that operate flights from Portland to Brisbane. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 8 August 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$727Average$1,565FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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

How does Cheapflights help users find flights from Portland to Brisbane?

When you search for this flight from Portland to Brisbane, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Portland to Brisbane?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Portland to Brisbane.

Can Cheapflights find flights from Portland to Brisbane with no change fees?

Need flexible booking options for your flight to Brisbane from Portland? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Portland to Brisbane become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Brisbane from Portland today and book when prices fit your budget.

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