Cheap Flights from Portland (PDX) to Adelaide (ADL)

Compare Portland to Adelaide flight deals

Find the cheapest month or even day of the year to fly to Adelaide

Book the best Adelaide fare with no extra fees

Flight deals from Portland to Adelaide

Looking for a cheap last-minute deal or the best return flight from Portland Airport to Adelaide Airport? If you want to travel next month, return fares start from $1,627. Find the lowest prices on one-way and return tickets right here.

Adelaide.$1,572 per passenger.Departing Mon, 27 Jul, returning Sun, 2 Aug.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Portland on Mon, 27 Jul, arriving in Adelaide.Inbound indirect flight with Air Canada, departs from Adelaide on Sun, 2 Aug, arriving in Portland.Price includes taxes and charges.From $1,572, select.

Adelaide.$1,627 per passenger.Departing Mon, 10 Aug, returning Mon, 17 Aug.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Portland on Mon, 10 Aug, arriving in Adelaide.Inbound indirect flight with Air Canada, departs from Adelaide on Mon, 17 Aug, arriving in Portland.Price includes taxes and charges.From $1,627, select.

Adelaide.$2,067 per passenger.Departing Sat, 25 Jul, returning Fri, 31 Jul.Return flight with Alaska Airlines and Jetstar.Outbound indirect flight with Alaska Airlines, departs from Portland on Sat, 25 Jul, arriving in Adelaide.Inbound indirect flight with Jetstar, departs from Adelaide on Fri, 31 Jul, arriving in Portland.Price includes taxes and charges.From $2,067, select.

Adelaide.$2,141 per passenger.Departing Thu, 10 Sep, returning Wed, 16 Sep.Return flight with Alaska Airlines and Qantas.Outbound indirect flight with Alaska Airlines, departs from Portland on Thu, 10 Sep, arriving in Adelaide.Inbound indirect flight with Qantas, departs from Adelaide on Wed, 16 Sep, arriving in Portland.Price includes taxes and charges.From $2,141, select.

Adelaide.$3,098 per passenger.Departing Mon, 24 Aug, returning Wed, 16 Sep.Return flight with Alaska Airlines and Singapore Airlines.Outbound indirect flight with Alaska Airlines, departs from Portland on Mon, 24 Aug, arriving in Adelaide.Inbound indirect flight with Singapore Airlines, departs from Adelaide on Wed, 16 Sep, arriving in Portland.Price includes taxes and charges.From $3,098, select.

Find the cheapest month to fly from Portland to Adelaide

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Portland to Adelaide flights are currently cheapest in August.

Jul

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Mar

Apr

May

Jun

Portland to Adelaide: Alternative routes

Compare routes from Portland to Adelaide below. You may find an airport to fly into that's cheaper, faster, or easier than Adelaide.

Adelaide

6km from central Adelaide

ClosestCheapest

from $1,572

Search flights

Portland to Adelaide: Flight information

The things to know before you go.

Cheapest flight found	$1,572
Cheapest month to fly	July

Finding cheap flights from Portland to Adelaide: Frequently asked questions

How much are return flights from Portland to Adelaide?

The best price we found for a return flight from Portland to Adelaide is $1,572. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Portland to Adelaide?

Currently, there are no airlines that fly direct from Portland to Adelaide. But we found flights with one or more stops from $1,572.

How many flights are there a week from Portland to Adelaide?

As of July 2026, there are no flights flying from Portland to Adelaide.

When is the cheapest time to fly from Portland to Adelaide?

The cheapest month to fly from Portland to Adelaide is usually July.

Which upcoming date is cheapest to fly from Portland Airport to Adelaide Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to Adelaide Airport on Monday, 27 July 2026.

Can I get a direct flight from Portland Airport to Adelaide Airport?

No airlines currently offer direct flights between Portland Airport and Adelaide Airport. Most routes have one or more stops.

How can I find the best flight deal to Adelaide?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Adelaide but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Adelaide?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Adelaide is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Portland Airport to Adelaide with?

Currently, Air Canada offers the cheapest flight tickets to Adelaide.

Travelling from Portland Airport (PDX) to Adelaide Airport (ADL): what you need to know

The timezone in Adelaide is UTC+10:30, which is 18 hours 30 minutes ahead of Portland.
Your PDX to ADL flight won't wait if you're running late, so get to the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.
Flying during a peak time such as July? Public holidays and other popular seasons can lead to longer lines at airport checkpoints. Play it safe and get there up to four hours before international flights and two hours before a domestic departure.

How to find the cheapest flights from Portland Airport (PDX) to Adelaide Airport (ADL)

Right now, $810 is the lowest price we've found for a one-way Portland Airport to Adelaide Airport flight. The best price for a return plane ticket is $1,572. Keep in mind that fares could change due to availability at the time of booking.
Don't leave things to the last moment. You're more likely to get cheap tickets from PDX to ADL if you book early. Airlines often offer some excellent early bird deals.
Finding cheap flights from Portland Airport to Adelaide Airport is easy if you can be flexible with your trip dates. Use the 'Whole month' function to see the best prices across every month and bag a great deal.
You don't need to check back in every day to see if fares have dropped when you create a Price Alert. We'll let you know as soon as a special offer becomes available on cheap flights from PDX to ADL.
Tailor your trip using filters. Select your arrival and departure times, total journey duration and airlines. You can also sort results by 'Best,' 'Fastest' or 'Cheapest' flights from Portland Airport to Adelaide Airport.

Handy information about Portland Airport (PDX)

You'll find PDX at 7000 NE Airport Way.
Portland Airport gets top marks for its on-time performance. 83% of flights that depart PDX reach their destination without delay.
Central Portland to Portland Airport is approximately 19 kilometres. Depending on traffic, it'll take you about 20 minutes to get there if you're ride-sharing, catching a taxi or driving.
Planning to catch public transport? You can expect a journey time of around 40 minutes.
Taking an early flight from Portland Airport to Adelaide Airport? Avoid rushing to the terminal (and enjoy a little extra shut-eye) by picking one of these hotels near PDX:

Arriving at Adelaide Airport (ADL)

The last thing you want is a long trip to your hotel if you're getting in late on a Portland Airport to Adelaide Airport flight. Check in to one of these accommodation options near ADL instead:
Get on the fast track to adventure by picking up a Adelaide Airport rental car. Grab a set of wheels from Bargain Car Rentals, simba car rental or East Coast to explore Adelaide and beyond.
To get the lowest price, book your ride from Adelaide Airport about one week before you travel.

When to fly to Adelaide Airport (ADL)

December is the most popular month for flights from Portland Airport to Adelaide Airport. To escape the crowds, travel to Adelaide in March.
When booking your flight from Portland Airport to Adelaide Airport, think about the type of weather you like. January is the warmest month in Adelaide, with the temperature ranging from 15ºC (59ºF) to 30ºC (86ºF).
For cooler conditions, search for a cheap ticket from PDX to ADL in July. Average temperatures are between 7ºC (45ºF) and 14ºC (57ºF) then.