S$558 Cheap Flights from Houston to Sydney

View S$558 flight on Wed, 10 Sep, 2025Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Sydney Airport (SYD)

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Cheap Flights from Houston to Sydney (IAH-SYD)

Prices were available within the past 7 days and start at S$558 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Houston (IAH) to Sydney (SYD)

October is typically the cheapest month to fly

From S$1,056 - S$2,576 per traveller.

Graph displaying average flight prices per month

Houston to Sydney route information
Origin airport
George Bush Intercontinental
Destination airport
Kingsford Smith Intl.
Distance
13755 km

Flights from Houston to Sydney

There are several airlines that operate frequent flights from Houston (IAH) to Sydney (SYD) including

The earliest flight leaves George Bush Intercontinental Airport at 15:35 and arrives at Kingsford Smith Intl. Airport at 06:05. The last flight of the day departs Houston at 22:15 and arrives at Sydney at 12:40.

The flight distance from Houston to Sydney is about 14488 km, the shortest flight is 18 hours 55 minutes with United Airlines."

Expedia lets you search across the largest number of airlines and Sydney flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Houston Sydney flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Houston to Sydney trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Sydney flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Houston to Sydney with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

Frequently asked questions

How much is a flight from George Bush Intercontinental Airport (IAH) to Mascot Airport?
The lowest price advertised for a round-trip flight between IAH and Sydney Airport is . But you better act fast. This price is based on fares available within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from IAH to Kingsford Smith Intl. Airport (SYD)?
This differs between airlines, as each one has its own terms and conditions. Visit the Customer Service Portal, where there are instructions on how to cancel online.
How do I find cheap flights from Houston Airport to Mascot Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for George Bush Intercontinental Airport (IAH) to Mascot Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Houston Airport to Kingsford Smith Intl. Airport (SYD)?
You'll have 13,900 kilometres to cover on the long-haul Houston to Sydney route. Wear comfy clothes and consider taking a pair of noise-cancelling earphones.
Which airlines fly direct from Houston Airport to SYD?
Check out the deals on offer with United Airlines (UA) if you want to travel directly from George Bush Intercontinental Airport (IAH) to Mascot Airport. This airline operates 13 flights every month, so you're sure to find one that suits your schedule.
Are George Bush Intercontinental Airport (IAH) to Kingsford Smith Intl. Airport (SYD) flight tickets cheaper when they're purchased at the last minute?
It is possible to nab amazing last-minute deals from IAH to Kingsford Smith Intl. Airport (SYD), but there's no guarantee. As many airlines release prices up to a year in advance, it's worth keeping an eye on fares early and being ready to pounce when you see a bargain. Expedia compares carrier prices and updates flight deals all the time, so you can be sure you're always getting the latest offers.

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