$639+ Cheap flights from Portland (PDX) to Adelaide (ADL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ADL
Nov 24 — Dec 11
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Portland to Adelaide with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Adelaide
Cheapest
Best
Last-minute
One-way
Cheapest flights from Portland to AdelaideExplore the most affordable flight options available from Portland to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
Explore the most affordable flight options available from Portland to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
This Expedia deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/510:00 am -
2 stops35h 40m
Sun 11/87:55 pm -
2 stops32h 01m
Deal found 10/21![Air Canada logo]()
$1,144
This Air Canada deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/237:10 pm -
2 stops29h 15m
Sat 1/1611:35 am -
2 stops25h 26m
Deal found 10/21![Multiple Airlines logo]()
$1,212
This oojo deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/69:33 pm -
2 stops42h 52m
Sun 12/1312:05 pm -
2 stops23h 00m
Deal found 10/22![Air New Zealand logo]()
$1,293
This Air Canada deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/710:00 am -
2 stops37h 40m
Wed 11/116:00 am -
2 stops31h 01m
Deal found 10/24![Air Canada logo]()
$1,311
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/710:59 am -
2 stops31h 31m
Wed 11/117:55 pm -
2 stops34h 57m
Deal found 10/20![United Airlines logo]()
$1,318
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/238:46 am -
2 stops37h 04m
Sat 1/162:55 pm -
1 stop21h 53m
Deal found 10/21![United Airlines logo]()
$1,559
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/67:25 pm -
2 stops26h 25m
Sun 12/137:15 am -
2 stops25h 53m
Deal found 10/22![United Airlines logo]()
$1,655
This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/512:04 pm -
3 stops28h 26m
Sun 11/812:05 pm -
2 stops24h 56m
Deal found 10/21![Multiple Airlines logo]()
$1,949
This BusinessClass deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/610:00 am -
3 stops30h 45m
Sun 12/137:50 am -
2 stops23h 12m
Deal found 10/22![Multiple Airlines logo]()
$2,080
Best flights from Portland to AdelaideDiscover carefully curated flight deals from Portland to Adelaide that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from Portland to Adelaide that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This Orbitz deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/147:10 pm -
2 stops24h 15m
Sat 2/202:30 pm -
2 stops37h 26m
Deal found 10/21![Air Canada logo]()
$1,061
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/710:59 am -
2 stops31h 31m
Wed 11/117:55 pm -
2 stops34h 57m
Deal found 10/20![United Airlines logo]()
$1,318
This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/512:04 pm -
3 stops28h 26m
Sun 11/812:05 pm -
2 stops24h 56m
Deal found 10/21![Multiple Airlines logo]()
$1,949
This Expedia deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/510:00 am -
2 stops35h 40m
Sun 11/87:55 pm -
2 stops32h 01m
Deal found 10/21![Air Canada logo]()
$1,144
This Air Canada deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/710:00 am -
2 stops37h 40m
Wed 11/116:00 am -
2 stops31h 01m
Deal found 10/24![Air Canada logo]()
$1,311
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/67:25 pm -
2 stops26h 25m
Sun 12/137:15 am -
2 stops25h 53m
Deal found 10/22![United Airlines logo]()
$1,655
This BusinessClass deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/610:00 am -
3 stops30h 45m
Sun 12/137:50 am -
2 stops23h 12m
Deal found 10/22![Multiple Airlines logo]()
$2,080
This Cathay Pacific deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:10 am -
2 stops33h 50m
Wed 12/1612:00 pm -
2 stops29h 53m
Deal found 10/25![Multiple Airlines logo]()
$2,172
This Qantas Airways deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/231:52 pm -
3 stops25h 18m
Sat 1/166:30 pm -
2 stops23h 12m
Deal found 10/21![Multiple Airlines logo]()
$2,621
Last-minute flights from Portland to AdelaideDiscover last-minute flight deals from Portland to Adelaide. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Adelaide. Data last updated October 25, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/510:00 am -
2 stops35h 40m
Sun 11/87:55 pm -
2 stops32h 01m
Deal found 10/21![Air Canada logo]()
$1,144
This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/512:04 pm -
3 stops28h 26m
Sun 11/812:05 pm -
2 stops24h 56m
Deal found 10/21![Multiple Airlines logo]()
$1,949
This Air Canada deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/710:00 am -
2 stops37h 40m
Wed 11/116:00 am -
2 stops31h 01m
Deal found 10/24![Air Canada logo]()
$1,311
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/710:59 am -
2 stops31h 31m
Wed 11/117:55 pm -
2 stops34h 57m
Deal found 10/20![United Airlines logo]()
$1,318
One-way flights from Portland to AdelaideSearch for one-way flight options from Portland to Adelaide. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from Portland to Adelaide. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This BYOjet deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/31:35 pm -
2 stops27h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Alaska Airlines logo]()
$639
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:00 am -
3 stops34h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$744
Find flight deals from Portland to Adelaide
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Adelaide (ADL). 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 October 25, 2026.
Most accurate provider | AranGrant 3 stars |
|---|---|
Most trusted provider | AranGrant 3 stars |
Round-trip from | $1,061 (Orbitz) |
One-way from | $639 (BYOjet) |
Cheapflights 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, Cheapflights users made 7,457,451 searches. Data last updated October 25, 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
Cheapest round-trip
Quickest round-trip
PortlandAdelaide
PDX Portland - ADL Adelaide
PDXADL
Portland
Thu 12/3
1:35 pm-11:55 am
2 stops27h 50m
Adelaide
Wed 12/31
12:00 am-6:30 am
Nonstop0h 00m
$639
PortlandAdelaide
PDX Portland - ADL Adelaide
PDXADL
Portland
Thu 12/3
7:00 am-12:15 pm
3 stops34h 45m
Adelaide
Wed 12/31
12:00 am-6:30 am
Nonstop0h 00m
$744
PortlandAdelaide
PDX Portland - ADL Adelaide
PDXADL
Portland
Sun 2/14
7:10 pm-1:55 pm
2 stops24h 15m
Adelaide
Sat 2/20
2:30 pm-9:26 am
2 stops37h 26m
$1,061
PortlandAdelaide
PDX Portland - ADL Adelaide
PDXADL
Portland
Thu 11/5
10:00 am-4:10 pm
2 stops35h 40m
Adelaide
Sun 11/8
7:55 pm-9:26 am
2 stops32h 01m
$1,144
PortlandAdelaide
PDX Portland - ADL Adelaide
PDXADL
Portland
Sat 11/7
10:00 am-6:10 pm
2 stops37h 40m
Adelaide
Wed 11/11
6:00 am-6:31 pm
2 stops31h 01m
$1,311
PortlandAdelaide
PDX Portland - ADL Adelaide
PDXADL
Portland
Sat 11/7
10:59 am-1:00 pm
2 stops31h 31m
Adelaide
Wed 11/11
7:55 pm-12:22 pm
2 stops34h 57m
$1,318
PortlandAdelaide
PDX Portland - ADL Adelaide
PDXADL
Portland
Sun 12/6
7:25 pm-4:20 pm
2 stops26h 25m
Adelaide
Sun 12/13
7:15 am-2:38 pm
2 stops25h 53m
$1,655
PortlandAdelaide
PDX Portland - ADL Adelaide
PDXADL
Portland
Thu 11/5
12:04 pm-11:00 am
3 stops28h 26m
Adelaide
Sun 11/8
12:05 pm-6:31 pm
2 stops24h 56m
$1,949
PortlandAdelaide
PDX Portland - ADL Adelaide
PDXADL
Portland
Sun 12/6
10:00 am-11:15 am
3 stops30h 45m
Adelaide
Sun 12/13
7:50 am-12:32 pm
2 stops23h 12m
$2,080
PortlandAdelaide
PDX Portland - ADL Adelaide
PDXADL
Portland
Wed 12/9
6:10 am-10:30 am
2 stops33h 50m
Adelaide
Wed 12/16
12:00 pm-11:23 pm
2 stops29h 53m
$2,172
Showing 1-10 of 11 resultsSorted by cheapest first
Compare providers for flights from Portland to Adelaide
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Adelaide in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Portland-Adelaide flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Portland-Adelaide flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Portland-Adelaide flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland-Adelaide flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Adelaide flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Portland to Adelaide
Have a flexible travel schedule? Discover the best time to fly to Adelaide from Portland with our price prediction graph.
PDX-ADL
Estimated round-trip 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.
Related info for your journey
Find useful and relevant information for your journey from Portland to Adelaide. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Adelaide flight routes
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Portland
Popular flights