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Cheap flights from Adelaide to Portland from $2,682

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/12. Fares are subject to change and may not be available on all flights or dates of travel.
ADL — PDX
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Adelaide to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Adelaide (ADL) to Portland (PDX). 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 7 November 2025.

Round-trip from

$2,682
United Airlines
  • United Airlines
  • 20/12-27/12
  • 4 total stops
  • 100h 41m total
  • Adelaide to Portland
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Find flight deals from Adelaide to Portland

Enter your travel dates to find the best prices.

Cheapest flights from Adelaide to Portland
Explore the most affordable flight options available from Adelaide to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 November 2025.

Sat 20/1214:55ADL - PDX
2 stops37h 36mUnited Airlines
Sat 27/1223:55PDX - ADL
2 stops63h 05mUnited Airlines
Deal found 4/11$2,682
Thu 6/1112:35ADL - PDX
2 stops23h 07mQantas Airways
Mon 10/1112:33PDX - ADL
2 stops36h 12mQantas Airways
Deal found 4/11$2,695
Sat 20/1214:55ADL - PDX
1 stop26h 21mVirgin Australia
Sat 27/1219:45PDX - ADL
1 stop19h 15mVirgin Australia
Deal found 4/11$2,802
Sat 20/1206:05ADL - PDX
3 stops29h 22mMultiple Airlines
Sat 27/1217:41PDX - ADL
2 stops24h 04mMultiple Airlines
Deal found 4/11$3,883
Sat 20/1212:00ADL - PDX
3 stops44h 14mCathay Pacific
Sat 27/1214:47PDX - ADL
3 stops45h 48mCathay Pacific
Deal found 4/11$4,926

Cheapflights Fare Finder

 
Customise your flight search to find flights from Adelaide to Portland 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 7 November 2025.
Use the filters below to find and compare flights from Adelaide to Portland that are best for you.

Fly from

Adelaide

Fly to

Portland

Route

Depart

Return

Price

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Sat 20/12

14:55-10:01

2 stops37h 36m

Portland

Sat 27/12

23:55-09:30

2 stops63h 05m

$2,682

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Sat 20/12

06:05-16:57

3 stops29h 22m

Portland

Sat 27/12

17:41-12:15

2 stops24h 04m

$3,883

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Sat 20/12

12:00-13:44

3 stops44h 14m

Portland

Sat 27/12

14:47-07:05

3 stops45h 48m

$4,926

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Sun 4/1

10:15-00:02

2 stops32h 17m

$3,390

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Sun 4/1

22:00-16:35

2 stops37h 05m

$3,415

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Thu 4/12

06:25-16:30

3 stops52h 35m

$3,899

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Sat 6/12

06:10-20:50

3 stops57h 10m

$3,978

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Wed 3/12

19:05-10:50

3 stops58h 15m

$4,184

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Fri 5/12

08:45-20:50

3 stops54h 35m

$4,226

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Sun 7/12

19:05-09:50

3 stops57h 15m

$4,296

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Best time to book a flight from Adelaide to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Adelaide 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 Adelaide to Portland

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

Find hourly flight availability from Adelaide to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 7 November 2025.

It’s typically best to fly out from Adelaide to Portland in the evening. Doing so could potentially save you 52% on the flight price compared to flying at midday, which is usually more expensive.

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated 7 November 2025.
Read reviews from past customers who have flown with Qantas Airways from Adelaide to Portland. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
929 reviews
Check prices

Comfort

7.5

Food

7.0

Boarding

7.7

Crew

8.2

Overall

7.5

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
Qantas Airways
7.5
Good
929 reviews
Qantas Airways
7.5
Good
929 reviews
Check prices

Comfort

7.5

Food

7.0

Boarding

7.7

Crew

8.2

Overall

7.5

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.

Related info for your journey

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

    For as low as $2,682, United Airlines can have you in Portland from Adelaide in 37h 36m. The distance between Adelaide and Portland is about 13317 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Currently priced at $1,642, Qantas Airways will fly you from Adelaide to Portland and back. In addition to Qantas Airways, many other airlines offer competitively priced options for your trip.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Adelaide to Portland 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Adelaide to Portland

Discover the top airline that operate flights from Adelaide to Portland. 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 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,642Average$1,806FlexibilityNo cancel feeOn-time74%
Search Qantas Airways 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 Adelaide to Portland?

Cheapflights makes it easy to find Adelaide to Portland flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

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 Adelaide to Portland.

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

Yes! Cheapflights helps users easily find flights from Adelaide to Portland with no change fees.

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

Yes, Cheapflights offers price alerts on Adelaide to Portland flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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