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Cheap flights from Portland to Adelaide from $1,260

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Adelaide departing on 6/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Portland to Adelaide

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:00 am - 8:10 am
PDX
-
ADL
31h 40m
2 stops
Multiple Airlines Logo
6:00 am - 6:11 am
ADL
-
PDX
40h 41m
2 stops
$1,260Multiple Airlines
sab, giu 6 - sab, giu 13
Multiple Airlines Logo
8:20 am - 10:35 pm
PDX
-
ADL
21h 45m
2 stops
Multiple Airlines Logo
7:10 pm - 6:14 am
ADL
-
PDX
51h 34m
2 stops
$1,300Multiple Airlines
ven, ago 28 - lun, ago 31
Multiple Airlines Logo
5:00 am - 10:35 pm
PDX
-
ADL
25h 05m
3 stops
Multiple Airlines Logo
6:00 am - 6:11 am
ADL
-
PDX
40h 41m
2 stops
$1,367Multiple Airlines
sab, giu 6 - sab, giu 13
Multiple Airlines Logo
1:14 pm - 11:10 am
PDX
-
ADL
29h 26m
3 stops
Multiple Airlines Logo
2:45 pm - 9:30 am
ADL
-
PDX
35h 15m
3 stops
$1,971Multiple Airlines
sab, giu 6 - sab, giu 13
Multiple Airlines Logo
10:10 am - 1:55 pm
PDX
-
ADL
35h 15m
3 stops
Multiple Airlines Logo
6:25 am - 8:50 pm
ADL
-
PDX
30h 55m
3 stops
$2,654Multiple Airlines
ven, ago 28 - lun, ago 31

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Adelaide 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, momondo users made 832,500 searches. Data last updated aprile 24, 2026.
Use the filters below to find and compare flights from Portland to Adelaide that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandAdelaide

PDX - ADL

PDXADL

Portland

sab 6/6

8:00 am-8:10 am

2 stops31h 40m

Adelaide

sab 6/13

6:00 am-6:11 am

2 stops40h 41m

$1,260

PortlandAdelaide

PDX - ADL

PDXADL

Portland

ven 8/28

8:20 am-10:35 pm

2 stops21h 45m

Adelaide

lun 8/31

7:10 pm-6:14 am

2 stops51h 34m

$1,300

PortlandAdelaide

PDX - ADL

PDXADL

Portland

sab 6/6

5:00 am-10:35 pm

3 stops25h 05m

Adelaide

sab 6/13

6:00 am-6:11 am

2 stops40h 41m

$1,367
Quickest round-trip

PortlandAdelaide

PDX - ADL

PDXADL

Portland

sab 6/6

1:14 pm-11:10 am

3 stops29h 26m

Adelaide

sab 6/13

2:45 pm-9:30 am

3 stops35h 15m

$1,971

PortlandAdelaide

PDX - ADL

PDXADL

Portland

ven 8/28

10:10 am-1:55 pm

3 stops35h 15m

Adelaide

lun 8/31

6:25 am-8:50 pm

3 stops30h 55m

$2,654

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

Fastest flight time

21h 45m

Direct flights

None
The fastest flight from Portland to Adelaide takes 21h 45m
There are no direct flights from Portland to Adelaide. There are no popular flight routes from Portland to Adelaide.
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Frequently asked questions about flying from Portland to Adelaide

  • How far is Portland to Adelaide by plane?

    There are 8265.6 mi between Portland and Adelaide. Flights usually cover this in 21h 45m, 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.

Frequently asked questions about flying from Portland to Adelaide

  • How do I get Price Alerts for flights from Portland to Adelaide?

    Search flight deals from Portland to Adelaide. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Portland to Adelaide with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Traveling to a place near Adelaide?

Book flights to Adelaide if you plan to visit one of these locations
Glenelg

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.

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