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Cheap flights from Adelaide to Portland from $2,129

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/5. Fares are subject to change and may not be available on all flights or dates of travel.
ADL — PDX
11 May — 18 May1
1 adult
1 adult, Economy, 0 bags

Cheap 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 11 April 2026.

Mon 25/506:05
ADL
-
PDX
2 stops22h 33m
United Airlines
Mon 1/605:15
PDX
-
ADL
3 stops36h 20m
United Airlines
Deal found 10/4$2,129
Fri 22/512:40
ADL
-
PDX
2 stops24h 38m
Multiple Airlines
Tue 26/510:35
PDX
-
ADL
2 stops56h 50m
Multiple Airlines
Deal found 5/4$2,373
Mon 13/420:00
ADL
-
PDX
2 stops41h 18m
Multiple Airlines
Fri 17/407:00
PDX
-
ADL
2 stops23h 05m
Multiple Airlines
Deal found 6/4$2,766
Mon 13/408:30
ADL
-
PDX
2 stops48h 30m
Air Tahiti Nui
Fri 17/417:49
PDX
-
ADL
3 stops32h 16m
Air Tahiti Nui
Deal found 8/4$3,444
Sun 12/417:10
ADL
-
PDX
2 stops39h 50m
Multiple Airlines
Sat 18/421:30
PDX
-
ADL
2 stops45h 15m
Multiple Airlines
Deal found 6/4$3,611

Find 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 11 April 2026.

Round-trip from

$2,129
United Airlines
  • United Airlines
  • 25/5-1/6
  • 5 total stops
  • 58h 53m total
  • Adelaide to Portland
Search Deals

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 11 April 2026.
Use the filters below to find and compare flights from Adelaide to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Mon 25/5

06:05-12:08

2 stops22h 33m

Portland

Mon 1/6

05:15-10:05

3 stops36h 20m

$2,129

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Fri 22/5

12:40-20:48

2 stops24h 38m

Portland

Tue 26/5

10:35-11:55

2 stops56h 50m

$2,373

Flights are sorted by cheapest return flights first.

Deals found on 10/4

Sorted by cheapest first

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.

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 11 April 2026.
Read reviews from past customers who have flown with Qantas Airways and United Airlines 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
1,018 reviews
Check prices

Food

7.0

Overall

7.5

Boarding

7.7

Comfort

7.4

Entertainment

7.2

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Midhat,Feb 2026

WYA - ADL

Frequent delays, 3rd week in a row. Flight attendants not at all friendly.
Qantas Airways
7.5
Good
1,018 reviews
Qantas Airways
7.5
Good
1,018 reviews
Check prices

Food

7.0

Overall

7.5

Boarding

7.7

Comfort

7.4

Entertainment

7.2

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Midhat,Feb 2026

WYA - ADL

Frequent delays, 3rd week in a row. Flight attendants not at all friendly.
United Airlines
7.4
Good
9,563 reviews
Qantas Airways
7.5
Good
1,018 reviews
Check prices

Food

7.0

Overall

7.5

Boarding

7.7

Comfort

7.4

Entertainment

7.2

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Midhat,Feb 2026

WYA - ADL

Frequent delays, 3rd week in a row. Flight attendants not at all friendly.

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 $2,129, United Airlines can have you in Portland from Adelaide in 22h 33m. The distance between Adelaide and Portland is about 13317 km.

  • What are the cheapest airlines flying from Adelaide to Portland round-trip?

    Currently priced at $1,607, United Airlines will fly you from Adelaide to Portland and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Qantas Airways for as low as $1,629.

  • 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 2 airlines flying from Adelaide to Portland

Discover the top 2 airlines 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 11 April 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,607Average$2,312FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Qantas AirwaysCheapest$1,629Average$1,660FlexibilityNo 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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