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Cheap flights from Houston George Bush Intcntl Airport to Australia from $605

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — SYD
25 Dec — 1 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from George Bush Intcntl to Australia

Keep the following information in mind while searching for George Bush Intcntl to Australia flight deals. Data was last updated 25 November 2025.

Round-trip from

$1,424

One-way from

$605

Popular in

January

Cheapest in

July

Average price

$1,627

Good one-way deal

$1,461 or less
Air Canada
  • Air Canada
  • 9/2-17/2
  • 4 total stops
  • 93h 23m total
  • Houston to Australia
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2/2
  • 2/2
  • 2 total stops
  • 33h 50m total
  • Houston to Australia
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($532 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($81 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a one-way flight from Houston George Bush Intcntl to Australia.
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Find flight deals from George Bush Intcntl to Australia

Enter your travel dates to find the best prices.

Cheapest flights from George Bush Intcntl to Australia
Explore the most affordable flight options available from George Bush Intcntl to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 November 2025.

Mon 8/1207:45IAH - SYD
1 stop30h 40mMultiple Airlines
Mon 15/1217:45SYD - IAH
1 stop18h 47mMultiple Airlines
Deal found 23/11$1,801
Sun 7/1219:29IAH - SYD
1 stop42h 56mMultiple Airlines
Mon 15/1206:00SYD - IAH
2 stops30h 12mMultiple Airlines
Deal found 24/11$1,886
Sat 6/1219:24IAH - SYD
1 stop43h 01mMultiple Airlines
Mon 15/1206:00SYD - IAH
2 stops30h 12mMultiple Airlines
Deal found 24/11$1,890
Wed 3/1219:24IAH - SYD
1 stop43h 01mMultiple Airlines
Mon 15/1206:00SYD - IAH
2 stops30h 12mMultiple Airlines
Deal found 24/11$1,895
Sun 7/1219:29IAH - SYD
1 stop42h 56mMultiple Airlines
Sat 13/1206:00SYD - IAH
2 stops30h 12mMultiple Airlines
Deal found 24/11$1,917
Sat 6/1219:24IAH - SYD
1 stop43h 01mMultiple Airlines
Sat 13/1206:00SYD - IAH
2 stops30h 12mMultiple Airlines
Deal found 24/11$1,921
Wed 3/1219:24IAH - SYD
1 stop43h 01mMultiple Airlines
Sat 13/1206:00SYD - IAH
2 stops30h 12mMultiple Airlines
Deal found 24/11$1,926
Mon 8/1207:45IAH - SYD
1 stop30h 40mMultiple Airlines
Thu 11/1221:15SYD - IAH
2 stops35h 37mMultiple Airlines
Deal found 24/11$1,931
Sun 7/1219:29IAH - SYD
1 stop42h 56mMultiple Airlines
Fri 12/1206:30SYD - IAH
2 stops26h 22mMultiple Airlines
Deal found 24/11$1,946
Sat 6/1219:24IAH - SYD
1 stop43h 01mMultiple Airlines
Fri 12/1206:30SYD - IAH
2 stops26h 22mMultiple Airlines
Deal found 24/11$1,949
Wed 3/1219:24IAH - SYD
1 stop43h 01mMultiple Airlines
Fri 12/1206:30SYD - IAH
2 stops26h 22mMultiple Airlines
Deal found 24/11$1,954
Sun 7/1219:29IAH - SYD
1 stop42h 56mMultiple Airlines
Tue 16/1208:45SYD - IAH
2 stops27h 27mMultiple Airlines
Deal found 24/11$1,971

Cheapflights Fare Finder

 
Customise your flight search to find flights from George Bush Intcntl to Australia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 25 November 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Australia that are best for you.

Fly from

George Bush Intcntl

Fly to

Australia

Route

Depart

Return

Price

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 28/2

14:37-09:35

2 stops49h 58m

Sydney Kingsford Smith

Thu 19/3

10:25-19:03

1 stop24h 38m

$1,527

HoustonAdelaide

IAH - ADL

IAHADL

Houston George Bush Intcntl

Sun 3/5

18:10-18:10

2 stops33h 30m

Adelaide

Mon 18/5

18:50-19:02

2 stops38h 42m

$1,533

HoustonAdelaide

IAH - ADL

IAHADL

Houston George Bush Intcntl

Sun 3/5

12:05-11:50

3 stops33h 15m

Adelaide

Mon 18/5

18:50-15:05

2 stops34h 45m

$1,536

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Sun 1/3

17:25-16:55

2 stops31h 30m

Brisbane

Sun 15/3

09:45-16:24

1 stop21h 39m

$1,623

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 31/1

09:55-07:25

1 stop28h 30m

Sydney Kingsford Smith

Sat 14/2

17:45-00:57

1 stop24h 12m

$1,661

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Sat 14/2

17:25-08:45

1 stop23h 20m

Brisbane

Wed 18/2

10:45-16:24

1 stop21h 39m

$1,689

HoustonMelbourne

IAH - MEL

IAHMEL

Houston George Bush Intcntl

Sun 1/2

10:03-13:35

3 stops34h 32m

Melbourne

Thu 12/2

07:45-21:44

3 stops30h 59m

$1,715

HoustonAdelaide

IAH - ADL

IAHADL

Houston George Bush Intcntl

Tue 17/2

17:25-16:20

2 stops30h 25m

Adelaide

Fri 20/2

19:55-16:24

2 stops36h 59m

$1,757

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 10/3

21:30-07:00

Nonstop17h 30m

Sydney Kingsford Smith

Tue 24/3

11:50-11:25

Nonstop15h 35m

$1,774

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 24/2

20:25-07:00

Nonstop17h 35m

Sydney Kingsford Smith

Wed 11/3

11:50-11:25

Nonstop15h 35m

$1,774

Flights are sorted by cheapest return flights first.

Deals found on 23/11

Showing 1-10 of 60 results
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Best time to book a flight from George Bush Intcntl to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from George Bush Intcntl with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Houston George Bush Intcntl Airport to Australia

What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Australia?

Currently, July is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Australia (average of $403). Flying from Houston George Bush Intcntl Airport to Australia in December is currently the most expensive (average of $1,324). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAH to AU?

Find hourly flight availability from George Bush Intcntl to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 November 2025.

When flying from Houston George Bush Intcntl Airport to Australia, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 23% versus a flight in the evening.

Weekly flight availability from Houston George Bush Intcntl Airport to Australia

Explore weekly flight availability from George Bush Intcntl to Australia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 25 November 2025.

The most flights from IAH to AU0 are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

Related info for your journey

Find useful and relevant information for your journey from George Bush Intcntl to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Houston George Bush Intcntl Airport to Australia?

    For as low as $1,774, Air Canada can have you in Australia from Houston George Bush Intcntl Airport in 17h 30m. Houston George Bush Intcntl Airport and Australia are separated by a distance of 13826 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Houston George Bush Intcntl Airport to Australia?

    While some choose either Houston George Bush Intcntl - Melbourne or Houston George Bush Intcntl - Brisbane, Houston George Bush Intcntl - Sydney Kingsford Smith is the most popular route from Houston George Bush Intcntl Airport to Australia.

  • What are the most reliable airlines from Houston George Bush Intcntl Airport to Australia?

    The top 3 most reliable airlines when flying from Houston George Bush Intcntl Airport to Australia are Virgin Australia (96%), United Airlines (96%) and Lufthansa (95%).

  • What are the cheapest flights from Houston George Bush Intcntl Airport to Australia?

    The cheapest flight price from Houston George Bush Intcntl Airport to Australia is $658. On average you can expect to pay $1,703. The most popular route, (Houston George Bush Intcntl - Sydney Kingsford Smith), can usually be booked for $1,378.

  • Can I find deals for flights from George Bush Intcntl to Australia that include hotel bookings?

    Yes. In addition to deals on George Bush Intcntl to Australia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from George Bush Intcntl to Australia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from George Bush Intcntl to Australia.

  • Can I find deals for business class flights from George Bush Intcntl to Australia?

    Yes. Cheapflights offers flight deals from George Bush Intcntl to Australia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Australia?

    Currently, July is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Australia (average of $403). Flying from Houston George Bush Intcntl Airport to Australia in December is currently the most expensive (average of $1,324). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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