$1,380+ Cheap flights from Portland (PDX) to Cairns (CNS)
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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — CNS
Nov 19 — Nov 261
Round-trip
1 adult, Economy
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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
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Cheapest flights from Portland to CairnsExplore the most affordable flight options available from Portland to Cairns. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2026.
Explore the most affordable flight options available from Portland to Cairns. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2026.
This Qantas Airways deal was found by Cheapflights users on 10/18. 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 12/25:30 pm -
2 stops23h 00m
Wed 12/99:15 am -
2 stops22h 33m
Deal found 10/18![Multiple Airlines logo]()
$1,380
This Qantas Airways deal was found by Cheapflights users on 10/18. 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.
Tue 12/296:44 am -
2 stops35h 06m
Thu 1/712:35 pm -
2 stops43h 15m
Deal found 10/18![Qantas Airways logo]()
$25,386
Best flights from Portland to CairnsDiscover carefully curated flight deals from Portland to Cairns that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 20, 2026.
Discover carefully curated flight deals from Portland to Cairns that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 20, 2026.
This Qantas Airways deal was found by Cheapflights users on 10/18. 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 12/25:30 pm -
2 stops23h 00m
Wed 12/99:15 am -
2 stops22h 33m
Deal found 10/18![Multiple Airlines logo]()
$1,380
This Qantas Airways deal was found by Cheapflights users on 10/18. 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.
Tue 12/296:44 am -
2 stops35h 06m
Thu 1/712:35 pm -
2 stops43h 15m
Deal found 10/18![Qantas Airways logo]()
$25,386
Find flight deals from Portland to Cairns
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Cairns (CNS). 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 20, 2026.
Round-trip from | $1,093 (FlightHub) |
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Cheapflights Fare Finder
Customize your flight search to find flights from Portland to Cairns 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 20, 2026.
Use the filters below to find and compare flights from Portland to Cairns that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
PortlandCairns
PDX Portland - CNS Cairns
PDXCNS
Portland
Wed 12/2
5:30 pm-10:30 am
2 stops23h 00m
Cairns
Wed 12/9
9:15 am-1:48 pm
2 stops22h 33m
$1,380
PortlandCairns
PDX Portland - CNS Cairns
PDXCNS
Portland
Tue 12/29
6:44 am-11:50 am
2 stops35h 06m
Cairns
Thu 1/7
12:35 pm-1:50 pm
2 stops43h 15m
$25,386
Sorted by cheapest first
Best time to book a flight from Portland to Cairns
Have a flexible travel schedule? Discover the best time to fly to Cairns from Portland with our price prediction graph.
PDX-CNS
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
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