What is the cheapest airline that flies from Portland to Adelaide?

Qantas Airways and United Airlines are the most popular carriers operating from Portland to Adelaide

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

Prices for flights from Portland Airport to Adelaide Airport refresh daily.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Adelaide Airport.

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

The necessary travel and health documents for your Adelaide Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$643 Cheap Flights from Portland to Adelaide in 2025/26

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Find the cheapest flights from Portland to Adelaide

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5:50 pm - 5:45 pmPDX-ADL

29h 25m2 stops

7:50 am - 5:52 pmADL-PDX

28h 32m2 stops

$1,210Qantas Airways

Find Deal

Sun, Jan 11 - Sat, Jan 31

6:20 am - 5:45 pmPDX-ADL

40h 55m2 stops

4:30 pm - 1:41 pmADL-PDX

39h 41m2 stops

$1,260Qantas Airways

Find Deal

Sun, Dec 28 - Tue, Jan 13

6:20 am - 6:45 pmPDX-ADL

41h 55m2 stops

6:30 pm - 1:41 pmADL-PDX

37h 41m2 stops

$1,333Qantas Airways

Find Deal

Sun, Dec 28 - Tue, Jan 13

6:20 am - 1:45 pmPDX-ADL

36h 55m2 stops

6:30 pm - 4:49 pmADL-PDX

40h 49m2 stops

$1,459Qantas Airways

Find Deal

Sun, Dec 28 - Tue, Jan 13

7:45 pm - 2:10 pmPDX-ADL

23h 55m2 stops

6:00 am - 6:41 pmADL-PDX

31h 11m3 stops

$1,684United Airlines

Find Deal

Sun, Dec 28 - Tue, Jan 13

7:45 pm - 4:20 pmPDX-ADL

26h 05m2 stops

6:00 am - 6:41 pmADL-PDX

31h 11m3 stops

$1,687United Airlines

Find Deal

Sun, Dec 28 - Tue, Jan 13

12:59 pm - 9:30 amPDX-ADL

50h 01m2 stops

2:55 pm - 2:46 pmADL-PDX

18h 21m1 stop

$1,689United Airlines

Find Deal

Sun, Jan 11 - Sat, Jan 31

12:49 am - 5:05 pmPDX-ADL

45h 46m2 stops

10:00 pm - 4:34 pmADL-PDX

37h 04m2 stops

$2,754Qatar Airways

Find Deal

Sat, Dec 27 - Tue, Jan 13

12:49 am - 5:05 pmPDX-ADL

45h 46m2 stops

10:00 pm - 4:34 pmADL-PDX

37h 04m2 stops

$2,755Qatar Airways

Find Deal

Sat, Dec 27 - Tue, Jan 13

12:49 am - 5:05 pmPDX-ADL

45h 46m2 stops

10:00 pm - 8:47 pmADL-PDX

41h 17m2 stops

$2,763Qatar Airways

Find Deal

Sat, Dec 27 - Tue, Jan 13

Qantas Airways flights from Portland to Adelaide

Our best Qantas Airways deals on Portland to Adelaide flight tickets

Qantas Airways

Jan 11

PDX5:50 pmPortland

29h 25m

2 stops

ADL5:45 pmAdelaide

Jan 31

ADL7:50 amAdelaide

28h 32m

2 stops

PDX5:52 pmPortland

$1,210

Find similar

Qantas Airways

Dec 28

PDX6:20 amPortland

40h 55m

2 stops

ADL5:45 pmAdelaide

Jan 13

ADL4:30 pmAdelaide

39h 41m

2 stops

PDX1:41 pmPortland

$1,260

Find similar

Qantas Airways

Dec 28

PDX6:20 amPortland

41h 55m

2 stops

ADL6:45 pmAdelaide

Jan 13

ADL6:30 pmAdelaide

37h 41m

2 stops

PDX1:41 pmPortland

$1,333

Find similar

United Airlines flights from Portland to Adelaide

Our best United Airlines deals on Portland to Adelaide flight tickets

United Airlines

Dec 28

PDX7:45 pmPortland

23h 55m

2 stops

ADL2:10 pmAdelaide

Jan 13

ADL6:00 amAdelaide

31h 11m

3 stops

PDX6:41 pmPortland

$1,684

Find similar

United Airlines

Dec 28

PDX7:45 pmPortland

26h 05m

2 stops

ADL4:20 pmAdelaide

Jan 13

ADL6:00 amAdelaide

31h 11m

3 stops

PDX6:41 pmPortland

$1,687

Find similar

United Airlines

Jan 11

PDX12:59 pmPortland

50h 01m

2 stops

ADL9:30 amAdelaide

Jan 31

ADL2:55 pmAdelaide

18h 21m

1 stop

PDX2:46 pmPortland

$1,689

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 1/11

5:50 pm-5:45 pm

2 stops29h 25m

Adelaide

Sat 1/31

7:50 am-5:52 pm

2 stops28h 32m

$1,210

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 12/28

6:20 am-5:45 pm

2 stops40h 55m

Adelaide

Tue 1/13

4:30 pm-1:41 pm

2 stops39h 41m

$1,260

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 12/28

6:20 am-6:45 pm

2 stops41h 55m

Adelaide

Tue 1/13

6:30 pm-1:41 pm

2 stops37h 41m

$1,333

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 12/28

6:20 am-1:45 pm

2 stops36h 55m

Adelaide

Tue 1/13

6:30 pm-4:49 pm

2 stops40h 49m

$1,459

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 12/28

7:45 pm-2:10 pm

2 stops23h 55m

Adelaide

Tue 1/13

6:00 am-6:41 pm

3 stops31h 11m

$1,684

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 12/28

7:45 pm-4:20 pm

2 stops26h 05m

Adelaide

Tue 1/13

6:00 am-6:41 pm

3 stops31h 11m

$1,687

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 1/11

12:59 pm-9:30 am

2 stops50h 01m

Adelaide

Sat 1/31

2:55 pm-2:46 pm

1 stop18h 21m

$1,689

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sat 12/27

12:49 am-5:05 pm

2 stops45h 46m

Adelaide

Tue 1/13

10:00 pm-4:34 pm

2 stops37h 04m

$2,754

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sat 12/27

12:49 am-5:05 pm

2 stops45h 46m

Adelaide

Tue 1/13

10:00 pm-4:34 pm

2 stops37h 04m

$2,755

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sat 12/27

12:49 am-5:05 pm

2 stops45h 46m

Adelaide

Tue 1/13

10:00 pm-8:47 pm

2 stops41h 17m

$2,763

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portland to Adelaide

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

Prices

Airlines

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

The cheapest day to depart on your flight to Adelaide is on a Monday when prices can be found for as low as $1,455. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Adelaide is Sunday, with ticket prices averaging around $1,547.

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

According to our data, the cheapest time of day to fly to Adelaide is in the afternoon. momondo users have found flights departing from Portland to Adelaide in the afternoon for as low as $1,279. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Adelaide are more costly in the evening, with an average ticket price of $1,590. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Portland to Adelaide

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Adelaide according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Portland to Adelaide (PDX to ADL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Adelaide

Direct flights	None

There are no direct flights from Portland to Adelaide. There are no popular flight routes from Portland to Adelaide.

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How far is Portland to Adelaide by plane?
There are 8265.6 mi between Portland and Adelaide. Flights usually cover this in 23h 55m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Portland Airport to Adelaide Airport?
Prices for flights from Portland Airport to Adelaide Airport refresh daily.
How old do you have to be to fly from Portland Airport to Adelaide Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Adelaide Airport.
What documentation or ID do you need to fly to Adelaide Airport?
The necessary travel and health documents for your Adelaide Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Adelaide. momondo saves you time and could save you money on your trip.

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

All flight searches from Portland to Adelaide on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Portland to Adelaide?

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 Adelaide.

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

If you are not ready to book a flight from Portland to Adelaide now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Adelaide and let you know when they change.