How long is the flight from Portland to Adelaide?

A quick flight from Portland to Adelaide can take about 33h. Air Canada provides one of the quickest options available for as low as $950. The distance from Portland to Adelaide is about 8275 mi.

In terms of precipitation, rainfall in Adelaide ranges from 0.4 - 2.4 inches per month. July is typically the wettest month, when rainfall can reach 2.4 in. January is typically the driest time to visit Adelaide when rainfall is around 0.4 in.

If weather is an important factor for your trip to Adelaide, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 51.8 F).

Most accurate provider : When it comes to deals on Portland-Adelaide flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Adelaide flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Adelaide flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Portland-Adelaide flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Adelaide flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

How can I find direct flights from Portland to Adelaide?

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

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

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

$750+ Flights from Portland to Adelaide

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Cheap flight deals from Portland to Adelaide

Cheapest flights from Portland to Adelaide
Explore the most affordable flight options available from Portland to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Sun 12/284:26 pmPDX - ADL

2 stops26h 44mQantas Airways

Tue 1/136:30 pmADL - PDX

2 stops37h 35mQantas Airways

Deal found 12/11

$1,351

Sun 12/287:45 pmPDX - ADL

2 stops23h 55mUnited Airlines

Tue 1/136:00 amADL - PDX

3 stops31h 26mUnited Airlines

Deal found 12/10

$2,165

Best flights from Portland to Adelaide
Discover carefully curated flight deals from Portland to Adelaide that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

Mon 1/267:00 pmPDX - ADL

2 stops33h 00mAir Canada

Mon 2/26:10 amADL - PDX

2 stops21h 35mAir Canada

Deal found 12/11

$950

Mon 2/97:00 pmPDX - ADL

2 stops29h 40mMultiple Airlines

Thu 2/196:10 amADL - PDX

2 stops21h 35mMultiple Airlines

Deal found 12/10

$989

Mon 1/263:50 pmPDX - ADL

1 stop23h 10mUnited Airlines

Mon 2/22:55 pmADL - PDX

1 stop18h 21mUnited Airlines

Deal found 12/11

$1,113

Sun 12/284:26 pmPDX - ADL

2 stops26h 44mQantas Airways

Tue 1/136:30 pmADL - PDX

2 stops37h 35mQantas Airways

Deal found 12/11

$1,351

Sat 1/242:57 pmPDX - ADL

2 stops26h 48mMultiple Airlines

Sat 1/311:15 pmADL - PDX

2 stops22h 04mMultiple Airlines

Deal found 12/9

$1,008

Thu 2/267:00 pmPDX - ADL

2 stops26h 40mAir Canada

Mon 3/26:55 pmADL - PDX

2 stops38h 15mAir Canada

Deal found 12/9

$1,090

Tue 2/107:00 pmPDX - ADL

2 stops26h 55mMultiple Airlines

Wed 2/186:10 amADL - PDX

2 stops21h 35mMultiple Airlines

Deal found 12/11

$1,019

Sat 1/245:00 amPDX - ADL

2 stops34h 00mUnited Airlines

Sat 1/312:55 pmADL - PDX

1 stop26h 41mUnited Airlines

Deal found 12/9

$1,217

Last-minute flights from Portland to Adelaide
Discover last-minute flight deals from Portland to Adelaide. Data last updated December 12, 2025 and is based on user searches.

Sun 12/284:26 pmPDX - ADL

2 stops26h 44mQantas Airways

Tue 1/136:30 pmADL - PDX

2 stops37h 35mQantas Airways

Deal found 12/12

$1,351

Sun 1/117:00 amPDX - ADL

2 stops30h 45mAlaska Airlines

Sat 1/3112:35 pmADL - PDX

2 stops35h 26mAlaska Airlines

Deal found 12/9

$1,388

Sun 1/117:00 amPDX - ADL

2 stops30h 45mMultiple Airlines

Sat 1/315:10 pmADL - PDX

2 stops30h 51mMultiple Airlines

Deal found 12/10

$1,456

Sun 1/114:51 pmPDX - ADL

2 stops24h 29mQantas Airways

Sat 1/317:50 amADL - PDX

2 stops24h 21mQantas Airways

Deal found 12/11

$1,481

Sat 1/242:57 pmPDX - ADL

2 stops26h 48mMultiple Airlines

Sat 1/311:15 pmADL - PDX

2 stops22h 04mMultiple Airlines

Deal found 12/9

$1,008

Sat 1/245:00 amPDX - ADL

2 stops34h 00mUnited Airlines

Sat 1/312:55 pmADL - PDX

1 stop26h 41mUnited Airlines

Deal found 12/9

$1,217

Mon 1/267:00 pmPDX - ADL

2 stops33h 00mAir Canada

Mon 2/26:10 amADL - PDX

2 stops21h 35mAir Canada

Deal found 12/11

$950

Mon 1/263:50 pmPDX - ADL

1 stop23h 10mUnited Airlines

Mon 2/22:55 pmADL - PDX

1 stop18h 21mUnited Airlines

Deal found 12/11

$1,113

Mon 1/262:57 pmPDX - ADL

2 stops28h 13mMultiple Airlines

Mon 2/29:00 amADL - PDX

3 stops28h 00mMultiple Airlines

Deal found 12/11

$1,367

One-way flights from Portland to Adelaide
Search for one-way flight options from Portland to Adelaide. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.

Sun 12/284:26 pmPDX - ADL

2 stops26h 44mQantas Airways

Deal found 12/11

$750

Sun 12/284:26 pmPDX - ADL

3 stops26h 44mMultiple Airlines

Deal found 12/11

$2,406

Find flight deals from Portland to Adelaide

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 1 star
Round-trip from	$989 (FlightHub)
One-way from	$750 (FlightHub)

Provider with most accurate pricing for Portland-Adelaide flight deals.

Search Deals

Provider most trusted by Cheapflights users for Portland-Adelaide flights.

Search Deals

From Portland to Adelaide

Search Deals

One-way flight from Portland to Adelaide

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Mon 1/26

7:00 pm-10:30 pm

2 stops33h 00m

Adelaide

Mon 2/2

6:10 am-9:15 am

2 stops21h 35m

$950

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Mon 2/9

7:00 pm-7:10 pm

2 stops29h 40m

Adelaide

Thu 2/19

6:10 am-9:15 am

2 stops21h 35m

$989

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sat 1/24

2:57 pm-12:15 pm

2 stops26h 48m

Adelaide

Sat 1/31

1:15 pm-4:49 pm

2 stops22h 04m

$1,008

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Tue 2/10

7:00 pm-4:25 pm

2 stops26h 55m

Adelaide

Wed 2/18

6:10 am-9:15 am

2 stops21h 35m

$1,019

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Thu 2/26

7:00 pm-4:10 pm

2 stops26h 40m

Adelaide

Mon 3/2

6:55 pm-2:40 pm

2 stops38h 15m

$1,090

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Mon 1/26

3:50 pm-9:30 am

1 stop23h 10m

Adelaide

Mon 2/2

2:55 pm-2:46 pm

1 stop18h 21m

$1,113

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sat 1/24

5:00 am-9:30 am

2 stops34h 00m

Adelaide

Sat 1/31

2:55 pm-11:06 pm

1 stop26h 41m

$1,217

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 12/28

4:26 pm-1:40 pm

2 stops26h 44m

Adelaide

Tue 1/13

6:30 pm-1:35 pm

2 stops37h 35m

$1,351

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 12/28

4:26 pm-1:40 pm

2 stops26h 44m

$750

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 12/28

4:26 pm-1:40 pm

3 stops26h 44m

$2,406

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Most accurate provider: When it comes to deals on Portland-Adelaide flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Adelaide flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Adelaide flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Portland-Adelaide flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Adelaide flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Adelaide

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

Estimated round-trip 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 Adelaide

What is the cheapest time of day to fly from PDX to ADL?

One of the essential ways to save on airfare from Portland to Adelaide is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 19% on airfare.

Related info for your journey

How long is the flight from Portland to Adelaide?
A quick flight from Portland to Adelaide can take about 33h. Air Canada provides one of the quickest options available for as low as $950. The distance from Portland to Adelaide is about 8275 mi.
Can I find deals for flights from Portland to Adelaide that include hotel bookings?
Yes. In addition to deals on Portland to Adelaide flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Portland to Adelaide?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Adelaide.
Can I find deals for business class flights from Portland to Adelaide?
Yes. Cheapflights offers flight deals from Portland to Adelaide by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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$750+ Cheap flights from Portland (PDX) to Adelaide (ADL)

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 12/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portland to Adelaide with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Portland to Adelaide

Cheapest flights from Portland to AdelaideExplore the most affordable flight options available from Portland to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Explore the most affordable flight options available from Portland to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Find flight deals from Portland to Adelaide

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Adelaide that are best for you.

Best time to book a flight from Portland to Adelaide

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

Cheapflights Insights

Everything you need to know about your flight from Portland to Adelaide

What is the cheapest time of day to fly from PDX to ADL?

Related info for your journey

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

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

How can I find direct flights from Portland to Adelaide?

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

Traveling to a place near Adelaide?

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Other flights to Adelaide

Explore flights to Adelaide departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on December 12, 2025.

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Cheapest flights from Portland to Adelaide
Explore the most affordable flight options available from Portland to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.