$553 Cheap Flights from Houston (IAH) to Cairns (CNS)

View $553 flight on Sat, Jan 24, 2026Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Cairns Intl. Airport (CNS)

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Cheap Flights from Houston to Cairns (IAH-CNS)

Prices were available within the past 7 days and start at $553 for one-way flights and $1,502 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cathay Pacific
Thu, Feb 5 - Thu, Feb 12
IAH
Houston
CNS
Cairns
$1,502 Roundtrip, found 3 days ago
$1,502
Roundtrip
found 3 days ago
Select Cathay Pacific flight, departing Thu, Feb 5 from Houston to Cairns, returning Thu, Feb 12, priced at $1,502 found 3 days ago
Cathay Pacific
Thu, Feb 5 - Thu, Feb 12
IAH
Houston
CNS
Cairns
$1,550 Roundtrip, found 3 days ago
$1,550
Roundtrip
found 3 days ago
Select Cathay Pacific flight, departing Thu, Feb 5 from Houston to Cairns, returning Thu, Feb 12, priced at $1,550 found 3 days ago
Air Canada
Thu, Feb 5 - Thu, Feb 12
IAH
Houston
CNS
Cairns
$1,568 Roundtrip, found 3 days ago
$1,568
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Feb 5 from Houston to Cairns, returning Thu, Feb 12, priced at $1,568 found 3 days ago
Air Canada
Thu, Feb 5 - Thu, Feb 12
IAH
Houston
CNS
Cairns
$1,571 Roundtrip, found 3 days ago
$1,571
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Feb 5 from Houston to Cairns, returning Thu, Feb 12, priced at $1,571 found 3 days ago
Air Canada
Thu, Feb 5 - Thu, Feb 12
IAH
Houston
CNS
Cairns
$1,573 Roundtrip, found 3 days ago
$1,573
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Feb 5 from Houston to Cairns, returning Thu, Feb 12, priced at $1,573 found 3 days ago
Air Canada
Thu, Feb 5 - Thu, Feb 12
IAH
Houston
CNS
Cairns
$1,576 Roundtrip, found 3 days ago
$1,576
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Feb 5 from Houston to Cairns, returning Thu, Feb 12, priced at $1,576 found 3 days ago
Air Canada
Thu, Feb 5 - Thu, Feb 12
IAH
Houston
CNS
Cairns
$1,581 Roundtrip, found 3 days ago
$1,581
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Feb 5 from Houston to Cairns, returning Thu, Feb 12, priced at $1,581 found 3 days ago
Qantas Airways
Sat, Jan 10 - Sun, Jan 18
IAH
Houston
CNS
Cairns
$2,938 Roundtrip, found 1 day ago
$2,938
Roundtrip
found 1 day ago
Select Qantas Airways flight, departing Sat, Jan 10 from Houston to Cairns, returning Sun, Jan 18, priced at $2,938 found 1 day ago
Qatar Airways
Sat, Jan 10 - Sun, Jan 18
IAH
Houston
CNS
Cairns
$3,404 Roundtrip, found 1 day ago
$3,404
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Sat, Jan 10 from Houston to Cairns, returning Sun, Jan 18, priced at $3,404 found 1 day ago
Lufthansa
Thu, May 21 - Mon, May 25
IAH
Houston
CNS
Cairns
$4,105 Roundtrip, found 3 days ago
$4,105
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Thu, May 21 from Houston to Cairns, returning Mon, May 25, priced at $4,105 found 3 days ago

Frequently asked questions

How much does a flight from George Bush Intercontinental Airport (IAH) to Cairns Intl. Airport (CNS) cost?
Grab a cheap one-way flight from $553 or cheap return flight from $1,502 from George Bush Intercontinental Airport (IAH) 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 George Bush Intercontinental Airport (IAH) to Cairns Intl. Airport (CNS)?
Flying in February may help you find better deals, as it's the cheapest month for flights between IAH and CNS. You'll typically find the lowest prices during off-peak months.
What is the cheapest airline that flies from George Bush Intercontinental Airport (IAH) to Cairns Intl. Airport (CNS)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll fly you from IAH to CNS. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from George Bush Intercontinental Airport (IAH) to Cairns Intl. Airport (CNS)?
There are no daily nonstop flights departing from George Bush Intercontinental Airport (IAH) to Cairns Intl. Airport (CNS). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way in no time.
What day of the week has the most flights from IAH to CNS?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on a number of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from George Bush Intercontinental Airport (IAH) to Cairns Intl. Airport (CNS)?
Select a flight from George Bush Intercontinental Airport (IAH) to Cairns Intl. Airport (CNS) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this are on average 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 George Bush Intercontinental Airport (IAH) to Cairns Intl. Airport (CNS) last-minute?
Last-minute fares from IAH to CNS are generally more expensive. To secure the lowest rates, start looking for flights ahead of time. That said, if you're flexible with your travel plans, it's possible to find a cheap fare just before your departure.
Is it cheaper to book an IAH to CNS flight and hotel package?
You'll typically save money by securing an IAH to CNS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've selected your ideal accommodations and flights, consider adding extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to Cairns Intl. Airport (CNS)?
If you reserved your IAH to CNS flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

Travel information

Origin airport
George Bush Intercontinental
Destination airport
Cairns Intl.
Airlines serving
Air Canada, Qantas Airways, Qatar Airways
Roundtrip price
$1,502
Distance
8503 mi

Book with confidence

Houston to Cairns Flights

The cheapest times to fly from Houston 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 Houston to Cairns are during the month of February. You can find some of the cheapest flights from Houston to Cairns with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to Cairns

Sunday is one of the best days to book for cheap flights from Houston 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 Houston 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 Houston to Cairns in 2025. You can also book with separate airlines for your outbound and return journeys, from $553 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 Houston 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 Houston 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.

 

Houston to Cairns Flights

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*Available to One Key members.