$631 Cheap Flights from Houston (IAH) to Cairns (CNS)

View $631 flight on Thu, Aug 28, 2025Opens 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 $631 for one-way flights and $1,157 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Tue, Nov 4 - Tue, Nov 18
IAH
Houston
CNS
Cairns
$1,157 Roundtrip, found 5 days ago
$1,157
Roundtrip
found 5 days ago
Select Air Canada flight, departing Tue, Nov 4 from Houston to Cairns, returning Tue, Nov 18, priced at $1,157 found 5 days ago
Fiji Airways
Thu, Aug 28 - Sat, Sep 27
IAH
Houston
CNS
Cairns
$1,220 Roundtrip, found 3 hours ago
$1,220
Roundtrip
found 3 hours ago
Select Fiji Airways flight, departing Thu, Aug 28 from Houston to Cairns, returning Sat, Sep 27, priced at $1,220 found 3 hours ago
Air Canada
Sun, Feb 15 - Fri, Feb 20
IAH
Houston
CNS
Cairns
$1,220 Roundtrip, found 4 days ago
$1,220
Roundtrip
found 4 days ago
Select Air Canada flight, departing Sun, Feb 15 from Houston to Cairns, returning Fri, Feb 20, priced at $1,220 found 4 days ago
Fiji Airways
Tue, Nov 4 - Thu, Nov 20
IAH
Houston
CNS
Cairns
$1,225 Roundtrip, found 5 days ago
$1,225
Roundtrip
found 5 days ago
Select Fiji Airways flight, departing Tue, Nov 4 from Houston to Cairns, returning Thu, Nov 20, priced at $1,225 found 5 days ago
Air Canada
Sun, Feb 15 - Fri, Feb 20
IAH
Houston
CNS
Cairns
$1,227 Roundtrip, found 4 days ago
$1,227
Roundtrip
found 4 days ago
Select Air Canada flight, departing Sun, Feb 15 from Houston to Cairns, returning Fri, Feb 20, priced at $1,227 found 4 days ago
Fiji Airways
Tue, Aug 19 - Thu, Aug 28
IAH
Houston
CNS
Cairns
$1,265 Roundtrip, found 4 days ago
$1,265
Roundtrip
found 4 days ago
Select Fiji Airways flight, departing Tue, Aug 19 from Houston to Cairns, returning Thu, Aug 28, priced at $1,265 found 4 days ago
Fiji Airways
Thu, Aug 21 - Sat, Aug 30
IAH
Houston
CNS
Cairns
$1,277 Roundtrip, found 5 days ago
$1,277
Roundtrip
found 5 days ago
Select Fiji Airways flight, departing Thu, Aug 21 from Houston to Cairns, returning Sat, Aug 30, priced at $1,277 found 5 days ago
Air New Zealand
Sun, Nov 2 - Sun, Nov 16
IAH
Houston
CNS
Cairns
$1,313 Roundtrip, found 5 days ago
$1,313
Roundtrip
found 5 days ago
Select Air New Zealand flight, departing Sun, Nov 2 from Houston to Cairns, returning Sun, Nov 16, priced at $1,313 found 5 days ago
United
Fri, Sep 26 - Thu, Oct 9
IAH
Houston
CNS
Cairns
$2,133 Roundtrip, found 12 hours ago
$2,133
Roundtrip
found 12 hours ago
Select United flight, departing Fri, Sep 26 from Houston to Cairns, returning Thu, Oct 9, priced at $2,133 found 12 hours ago
All Nippon Airways
Sun, Feb 15 - Fri, Feb 20
IAH
Houston
CNS
Cairns
$2,147 Roundtrip, found 4 days ago
$2,147
Roundtrip
found 4 days ago
Select All Nippon Airways flight, departing Sun, Feb 15 from Houston to Cairns, returning Fri, Feb 20, priced at $2,147 found 4 days ago

Alternative airports near Cairns

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Cairns Intl. CNS. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $2,077
CNS
Cairns Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $2,077
Flights from Houston (IAH) to Cairns (CNS)
Origin airport
George Bush Intercontinental
Destination airport
Cairns Intl.
Airlines serving
Air New Zealand, Japan Airlines, Qantas Airways, Qatar Airways, United
Roundtrip price
$1,156
Distance
8503 mi

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 November. 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 $631 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.

 

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 $631 or cheap return flight from $1,157 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 November 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.

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*Available to One Key members.