$767 Cheap Flights from Houston (IAH) to Sydney (SYD)

View $767 flight on Mon, Feb 9, 2026Opens 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 $767 for one-way flights and $885 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

All Nippon Airways
Tue, Mar 3 - Tue, Mar 10
IAH
Houston
SYD
Sydney
$885 Roundtrip, found 6 days ago
$885
Roundtrip
found 6 days ago
Select All Nippon Airways flight, departing Tue, Mar 3 from Houston to Sydney, returning Tue, Mar 10, priced at $885 found 6 days ago
All Nippon Airways
Tue, Mar 3 - Tue, Mar 10
IAH
Houston
SYD
Sydney
$1,045 Roundtrip, found 6 days ago
$1,045
Roundtrip
found 6 days ago
Select All Nippon Airways flight, departing Tue, Mar 3 from Houston to Sydney, returning Tue, Mar 10, priced at $1,045 found 6 days ago
Air New Zealand
Wed, Nov 26 - Wed, Dec 3
IAH
Houston
SYD
Sydney
$1,080 Roundtrip, just found
$1,080
Roundtrip
just found
Select Air New Zealand flight, departing Wed, Nov 26 from Houston to Sydney, returning Wed, Dec 3, priced at $1,080 just found
Air New Zealand
Mon, Dec 8 - Mon, Dec 22
IAH
Houston
SYD
Sydney
$1,091 Roundtrip, found 3 days ago
$1,091
Roundtrip
found 3 days ago
Select Air New Zealand flight, departing Mon, Dec 8 from Houston to Sydney, returning Mon, Dec 22, priced at $1,091 found 3 days ago
Air Canada
Sun, Mar 8 - Mon, Mar 23
IAH
Houston
SYD
Sydney
$1,250 Roundtrip, found 2 days ago
$1,250
Roundtrip
found 2 days ago
Select Air Canada flight, departing Sun, Mar 8 from Houston to Sydney, returning Mon, Mar 23, priced at $1,250 found 2 days ago
Qantas Airways
Tue, Mar 10 - Mon, Mar 23
IAH
Houston
SYD
Sydney
$1,444 Roundtrip, just found
$1,444
Roundtrip
just found
Select Qantas Airways flight, departing Tue, Mar 10 from Houston to Sydney, returning Mon, Mar 23, priced at $1,444 just found
American Airlines
Tue, Mar 3 - Wed, Mar 11
IAH
Houston
SYD
Sydney
$1,445 Roundtrip, found 2 days ago
$1,445
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Mar 3 from Houston to Sydney, returning Wed, Mar 11, priced at $1,445 found 2 days ago
United
Sun, Mar 1 - Tue, Mar 10
IAH
Houston
SYD
Sydney
$1,447 Roundtrip, just found
$1,447
Roundtrip
just found
Select United flight, departing Sun, Mar 1 from Houston to Sydney, returning Tue, Mar 10, priced at $1,447 just found
Cathay Pacific
Wed, Apr 15 - Tue, May 5
IAH
Houston
SYD
Sydney
$1,448 Roundtrip, just found
$1,448
Roundtrip
just found
Select Cathay Pacific flight, departing Wed, Apr 15 from Houston to Sydney, returning Tue, May 5, priced at $1,448 just found
Delta
Wed, Jun 24 - Wed, Jul 15
IAH
Houston
SYD
Sydney
$1,462 Roundtrip, just found
$1,462
Roundtrip
just found
Select Delta flight, departing Wed, Jun 24 from Houston to Sydney, returning Wed, Jul 15, priced at $1,462 just found

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

February is typically the cheapest month to fly

From $830 - $1,902 per traveler.

Alternative airports near Sydney

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

Select flight to Kingsford Smith Intl. SYD. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $1,448
SYD
Kingsford Smith Intl.
Cheapest
Average driving time to city center16 min
Flights from $1,448

Frequently asked questions

How much does a flight from George Bush Intercontinental Airport (IAH) to Kingsford Smith Intl. Airport (SYD) cost?
Lock in a cheap one-way flight from $767 or cheap return flight from $885 from George Bush Intercontinental Airport (IAH) to Kingsford Smith Intl. Airport (SYD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from George Bush Intercontinental Airport (IAH) to Kingsford Smith Intl. Airport (SYD)?
Flying in March can help you save, as it's the cheapest month for flights between IAH and SYD. You'll typically find the lowest fares during off-peak months.
Which airlines fly direct from George Bush Intercontinental Airport (IAH) to Kingsford Smith Intl. Airport (SYD)?
When heading out of George Bush Intercontinental Airport (IAH), you can get on a nonstop flight to Kingsford Smith Intl. Airport (SYD) with United Airlines.
What is the cheapest airline that flies from George Bush Intercontinental Airport (IAH) to Kingsford Smith Intl. Airport (SYD)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll fly you from IAH to SYD. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from George Bush Intercontinental Airport (IAH) to Kingsford Smith Intl. Airport (SYD)?
On average, there is just 1 nonstop flight taking off from George Bush Intercontinental Airport (IAH) to Kingsford Smith Intl. Airport (SYD) each day. If this doesn't work with your itinerary, consider flights with layovers. Just filter your search on Expedia to include one or more stops to discover a better alternative.
What are the most popular departure times for flights from George Bush Intercontinental Airport (IAH) to Kingsford Smith Intl. Airport (SYD)?
Flights between IAH and SYD are their busiest at 8 PM. If you want a quieter trip and possibly cheaper tickets, look for a time outside the usual busy windows.
What day of the week has the most flights from IAH to SYD?
Jet off on a Saturday if you're searching for the largest selection of flights from George Bush Intercontinental Airport (IAH) to Kingsford Smith Intl. Airport (SYD).
What is the earliest flight from George Bush Intercontinental Airport (IAH) to Kingsford Smith Intl. Airport (SYD)?
The earliest flight taking off from George Bush Intercontinental Airport (IAH) is at around 8:25PM UTC-6. Catch this flight and you'll arrive at Kingsford Smith Intl. Airport (SYD) at approximately 7:00AM UTC+11. The total flight duration is 17h 35m.
How long does it take to fly from George Bush Intercontinental Airport (IAH) to Kingsford Smith Intl. Airport (SYD)?
It takes approximately 17 hours and 35 minutes to travel the 8,600 mi from IAH to SYD.
What is the best time to fly from George Bush Intercontinental Airport (IAH) to Kingsford Smith Intl. Airport (SYD)?
To touch down at Kingsford Smith Intl. Airport (SYD) on time, select a flight that leaves George Bush Intercontinental Airport (IAH) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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.
What airports do you fly into for Sydney from George Bush Intercontinental Airport (IAH)?
Kingsford Smith Intl. Airport (SYD) is the only airport in Sydney with direct flights from George Bush Intercontinental Airport (IAH). Compare the available options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from George Bush Intercontinental Airport (IAH) to Kingsford Smith Intl. Airport (SYD) last-minute?
Holding off until just before your trip to book your flight from IAH to SYD generally means paying more. Although you may find some last-minute deals, they're not always guaranteed. Be flexible with your travel plans for the best chance of getting a bargain.
Is it cheaper to book an IAH to SYD flight and hotel package?
Compared with arranging flights and hotels separately, booking an IAH to SYD flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one place will take the hassle out of planning your trip. Simply secure your flights and select from our extensive range of stays, then personalize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to Kingsford Smith Intl. Airport (SYD)?
In most instances, you can modify or cancel your IAH to SYD flight. However, there may be additional fees, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you want more information, go to our Customer Service portal.

Travel information

Origin airport
George Bush Intercontinental
Destination airport
Kingsford Smith Intl.
Airlines serving
Air Canada, Air New Zealand, Air Tahiti Nui, Alaska Airlines, All Nippon Airways, American Airlines, British Airways, Cathay Pacific, Delta, Emirates, Etihad Airways, Japan Airlines, Lufthansa, Qantas Airways, Qatar Airways, Turkish Airlines, United
Roundtrip price
$885
Distance
8597 mi
Average flight time
17 hours 35 mins

Book with confidence

Houston to Sydney Flights

The cheapest times to fly from Houston to Sydney

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 Sydney are during the month of March. You can find some of the cheapest flights from Houston to Sydney with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to Sydney

Sunday is one of the best days to book for cheap flights from Houston to Sydney: 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 Sydney

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 Sydney in 2025. You can also book with separate airlines for your outbound and return journeys, from $767 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 Sydney 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 Sydney 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 Sydney Flights

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*Available to One Key members.