The cheapest times to fly from PDX to CNS are

  • January 29th to April 29th
  • October 8th to December 2nd

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from PDX to CNS is mid November. Prices can be as high as $3751 for Friday flights during late December, or as low as $1350 for Tuesday flights around mid November.


When to Fly to Cairns

Flying from Portland, OR (PDX) to Cairns (CNS) will usually cost between $1443 to $2637 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid November with an average ticket price of $1442. Due to high demand the most expensive time to fly is late December, with an average price of $3051. Planning your trip to low-cost times can easily save you $1609 on economy flights and even more on first-class flights. Generally, any price below $1709 can be considered a good price for a round-trip PDX to CNS flight.

See below for a graph of average weekly prices for the PDX to CNS route. All prices are for round-trip tickets in USD.

PDX to CNS Flight Prices

Compared to other flights, the PDX to CNS flight is more expensive than the average and costs more than the average flight leaving from Portland. The average price per mile (for a direct flight) is $0.15, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Fridays are the most expensive days to fly to Cairns, and Thursdays are the most expensive days to return to Portland. Selecting flights on the least expensive days could save you up to $169 (9%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $1649. Return trip prices are from the CNS to PDX flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from PDX to CNS can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 13 hour 48 minutes may not be realistic.


Flight Hacking PDX to CNS

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from PDX to CNS — but Champion Traveler does!

Hack #1: Los Angeles, CA (PDX > LAX > CNS)

  • Price for both tickets: $1279
  • Average savings: $430 (25.16%)

See PDX to LAX flights

Hack #2: Sydney (PDX > SYD > CNS)

  • Price for both tickets: $1327
  • Average savings: $383 (22.38%)

See PDX to SYD flights

Hack #3: Brisbane (PDX > BNE > CNS)

  • Price for both tickets: $1338
  • Average savings: $372 (21.74%)

See PDX to BNE flights


Flight Questions Answered

Still have questions about flying from PDX to CNS? We’ve got answers.

Which airlines fly this route?

You can find 12 major airlines flying this route most often: Air Canada, Air New Zealand, American, Cathay Pacific, Delta, Fiji Airways, Hawaiian, JAL, Qantas, Singapore Airlines, United, Virgin Australia, and potentially more during busy seasons.

How far away is it from Cairns International Airport to Portland International Airport?

The distance between the two airports is roughly 7123 miles or 11463 kilometers.

How long does it take to fly from PDX to CNS?

The real-world flight time for a nonstop PDX to CNS flight is about 13 hour 48 minutes.

How many flights go between Portland, OR and Cairns?

It depends on the day of the week and the date, but a typical day might have around 18 available flights from PDX to CNS.


Airport Location Info


Departing Airport

Origination code PDX
Origination airport name Portland International Airport
City Portland, OR
Country the United States
Latitude 45.6
Longitude -122.6

Return Airport

Destination code CNS
Destination airport name Cairns International Airport
City Cairns
Country Australia
Latitude -16.9
Longitude 145.8


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.