$735 Cheap Flights from Philadelphia (PHL) to Cairns (CNS)

View $735 flight on Wed, Mar 11, 2026Opens in a new window

Popular airlines from Philadelphia Intl. Airport (PHL) to Cairns Intl. Airport (CNS)

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Cheap Flights from Philadelphia to Cairns (PHL-CNS)

Prices were available within the past 7 days and start at $735 for one-way flights and $1,308 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Qantas Airways
Wed, Mar 4 - Thu, Mar 12
PHL
Philadelphia
CNS
Cairns
$1,308 Roundtrip, found 3 days ago
$1,308
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Wed, Mar 4 from Philadelphia to Cairns, returning Thu, Mar 12, priced at $1,308 found 3 days ago
Qantas Airways
Wed, Mar 4 - Thu, Mar 12
PHL
Philadelphia
CNS
Cairns
$1,309 Roundtrip, found 3 days ago
$1,309
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Wed, Mar 4 from Philadelphia to Cairns, returning Thu, Mar 12, priced at $1,309 found 3 days ago
Qantas Airways
Wed, Mar 4 - Thu, Mar 12
PHL
Philadelphia
CNS
Cairns
$1,309 Roundtrip, found 3 days ago
$1,309
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Wed, Mar 4 from Philadelphia to Cairns, returning Thu, Mar 12, priced at $1,309 found 3 days ago
Qantas Airways
Wed, Mar 4 - Thu, Mar 12
PHL
Philadelphia
CNS
Cairns
$1,310 Roundtrip, found 3 days ago
$1,310
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Wed, Mar 4 from Philadelphia to Cairns, returning Thu, Mar 12, priced at $1,310 found 3 days ago
Qantas Airways
Wed, Mar 4 - Thu, Mar 12
PHL
Philadelphia
CNS
Cairns
$1,322 Roundtrip, found 3 days ago
$1,322
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Wed, Mar 4 from Philadelphia to Cairns, returning Thu, Mar 12, priced at $1,322 found 3 days ago
Qantas Airways
Wed, Mar 4 - Thu, Mar 12
PHL
Philadelphia
CNS
Cairns
$1,340 Roundtrip, found 3 days ago
$1,340
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Wed, Mar 4 from Philadelphia to Cairns, returning Thu, Mar 12, priced at $1,340 found 3 days ago
American Airlines
Wed, Mar 11 - Sun, Mar 15
PHL
Philadelphia
CNS
Cairns
$1,346 Roundtrip, found 4 days ago
$1,346
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Mar 11 from Philadelphia to Cairns, returning Sun, Mar 15, priced at $1,346 found 4 days ago
United
Tue, Feb 10 - Wed, Feb 18
PHL
Philadelphia
CNS
Cairns
$1,433 Roundtrip, found 2 days ago
$1,433
Roundtrip
found 2 days ago
Select United flight, departing Tue, Feb 10 from Philadelphia to Cairns, returning Wed, Feb 18, priced at $1,433 found 2 days ago
Cathay Pacific
Sat, Feb 7 - Thu, Feb 19
PHL
Philadelphia
CNS
Cairns
$1,714 Roundtrip, found 2 days ago
$1,714
Roundtrip
found 2 days ago
Select Cathay Pacific flight, departing Sat, Feb 7 from Philadelphia to Cairns, returning Thu, Feb 19, priced at $1,714 found 2 days ago
Air Canada
Wed, Mar 4 - Thu, Mar 12
PHL
Philadelphia
CNS
Cairns
$1,723 Roundtrip, found 3 days ago
$1,723
Roundtrip
found 3 days ago
Select Air Canada flight, departing Wed, Mar 4 from Philadelphia to Cairns, returning Thu, Mar 12, priced at $1,723 found 3 days ago

Frequently asked questions

How much does a flight from Philadelphia Intl. Airport (PHL) to Cairns Intl. Airport (CNS) cost?
Snag a cheap one-way flight from $735 or cheap return flight from $1,308 from Philadelphia Intl. Airport (PHL) to Cairns Intl. Airport (CNS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Philadelphia Intl. Airport (PHL) to Cairns Intl. Airport (CNS)?
March is the most affordable month to fly from PHL to CNS. Traveling outside of peak seasons is often the key to scoring lower fares.
What is the cheapest airline that flies from Philadelphia Intl. Airport (PHL) to Cairns Intl. Airport (CNS)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest PHL to CNS flight.
How many flights per day from Philadelphia Intl. Airport (PHL) to Cairns Intl. Airport (CNS)?
You'll need to hop on a flight with a layover if you're traveling from Philadelphia Intl. Airport (PHL) to Cairns Intl. Airport (CNS). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from PHL to CNS?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Philadelphia Intl. Airport (PHL) to Cairns Intl. Airport (CNS)?
To avoid potential delays on the Philadelphia Intl. Airport (PHL) to Cairns Intl. Airport (CNS) route, fly before 3 PM. Later departures are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Philadelphia Intl. Airport (PHL) to Cairns Intl. Airport (CNS) last-minute?
Booking your flight from PHL to CNS just before your journey is generally more expensive. But if there's some wiggle room with your itinerary, you could grab a cheap last-minute fare.
Is it cheaper to book a PHL to CNS flight and hotel package?
You can save money by securing a PHL to CNS flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've chosen your ideal accommodations and flights, consider adding extras including activities, car rentals and tours.
Can I cancel or change the date of my flight from Philadelphia Intl. Airport (PHL) to Cairns Intl. Airport (CNS)?
If you booked your PHL to CNS flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

Travel information

Origin airport
Philadelphia Intl.
Destination airport
Cairns Intl.
Airlines serving
Qantas Airways, Qatar Airways
Roundtrip price
$1,307
Distance
9518 mi

Book with confidence

Philadelphia to Cairns Flights

The cheapest times to fly from Philadelphia to Cairns

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Philadelphia to Cairns are during the month of March. You can find some of the cheapest flights from Philadelphia to Cairns with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Philadelphia to Cairns

Sunday is one of the best days to book for cheap flights from Philadelphia to Cairns: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Philadelphia to Cairns

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Philadelphia to Cairns in 2026. You can also book with separate airlines for your outbound and return journeys, from $735 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Philadelphia to Cairns flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Philadelphia to Cairns airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Philadelphia to Cairns Flights

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*Available to One Key members.