In terms of precipitation, rainfall in Australia ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Australia when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Australia, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

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

When flying from Houston George Bush Intcntl Airport to Australia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

$819+ Cheap Flights from Houston George Bush Intcntl Airport to Australia

Cheap flight deals from George Bush Intcntl to Australia

Enter your travel dates to find the best prices.

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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 9 September 2026.

Sat 17/1022:59 -

1 stop40h 31m

Mon 9/1114:00 -

2 stops38h 32m

Deal found 6/9$1,208

Sat 17/1022:59 -

1 stop40h 31m

Fri 23/1014:15 -

2 stops37h 11m

Deal found 8/9$1,268

Sat 17/1022:59 -

1 stop40h 31m

Thu 5/1114:00 -

2 stops38h 32m

Deal found 5/9$1,284

Sat 17/1022:59 -

1 stop40h 31m

Tue 3/1114:00 -

2 stops38h 32m

Deal found 5/9$1,291

Sat 17/1022:59 -

1 stop40h 31m

Sun 1/1114:00 -

2 stops38h 32m

Deal found 5/9$1,300

Sun 18/1022:59 -

1 stop40h 31m

Mon 9/1114:00 -

2 stops38h 32m

Deal found 6/9$1,302

Sat 17/1022:59 -

1 stop40h 31m

Tue 10/1114:00 -

2 stops38h 32m

Deal found 6/9$1,322

Mon 26/1022:59 -

1 stop39h 26m

Mon 9/1114:00 -

2 stops38h 32m

Deal found 6/9$1,327

Sat 24/1022:59 -

1 stop39h 26m

Tue 3/1114:00 -

2 stops38h 32m

Deal found 5/9$1,329

Sun 18/1022:59 -

1 stop40h 31m

Thu 5/1114:00 -

2 stops38h 32m

Deal found 5/9$1,355

Tue 20/1022:59 -

1 stop39h 46m

Sun 25/1013:55 -

2 stops37h 31m

Deal found 7/9$1,607

Mon 19/1022:59 -

1 stop39h 01m

Sun 15/1111:25 -

2 stops40h 07m

Deal found 5/9$1,621

Best flights from George Bush Intcntl to Australia
Discover carefully curated flight deals from George Bush Intcntl to Australia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Mon 19/1007:00 -

2 stops32h 30m

Wed 28/1009:20 -

2 stops30h 33m

Deal found 7/9$1,733

Tue 9/212:00 -

1 stop28h 30m

Tue 23/212:10 -

1 stop19h 05m

Deal found 8/9$2,030

Fri 29/122:05 -

2 stops42h 55m

Tue 9/207:15 -

2 stops23h 30m

Deal found 4/9$2,034

Fri 25/920:17 -

2 stops37h 23m

Mon 12/1008:20 -

2 stops52h 39m

Deal found 8/9$2,218

Tue 1/1221:00 -

2 stops54h 40m

Mon 14/1222:35 -

2 stops37h 30m

Deal found 5/9$2,268

Thu 24/1209:30 -

2 stops31h 15m

Mon 11/110:45 -

2 stops48h 15m

Deal found 4/9$2,434

Fri 25/918:15 -

1 stop35h 20m

Thu 8/1013:45 -

2 stops39h 10m

Deal found 7/9$2,728

Thu 24/1214:39 -

2 stops24h 51m

Thu 7/113:35 -

2 stops27h 23m

Deal found 4/9$2,748

Mon 1/216:23 -

2 stops28h 42m

Thu 8/706:00 -

2 stops28h 43m

Deal found 6/9$2,803

Fri 16/1007:00 -

2 stops32h 30m

Fri 23/1009:00 -

2 stops30h 53m

Deal found 8/9$1,816

Fri 20/1115:05 -

3 stops58h 20m

Sat 28/1120:45 -

3 stops54h 20m

Deal found 4/9$3,888

Sun 28/218:10 -

2 stops28h 05m

Mon 15/306:05 -

2 stops24h 32m

Deal found 8/9$1,983

Wed 7/1020:10 -

2 stops23h 45m

Wed 14/1008:40 -

2 stops28h 19m

Deal found 8/9$2,222

Fri 27/1121:00 -

2 stops54h 40m

Fri 11/1222:35 -

2 stops37h 30m

Deal found 5/9$2,268

Mon 9/1109:11 -

2 stops33h 34m

Thu 12/1100:50 -

2 stops34h 59m

Deal found 7/9$2,303

Sun 8/1118:10 -

1 stop22h 35m

Thu 12/1110:45 -

2 stops42h 36m

Deal found 8/9$2,452

Fri 23/1020:55 -

1 stop22h 30m

Fri 30/1012:05 -

2 stops25h 20m

Deal found 8/9$2,275

Sun 8/1120:01 -

2 stops35h 19m

Wed 11/1100:50 -

2 stops39h 08m

Deal found 8/9$2,303

Tue 3/1111:55 -

3 stops33h 40m

Sat 14/1106:05 -

2 stops25h 33m

Deal found 8/9$2,096

Sun 8/1120:25 -

Nonstop17h 35m

Sun 15/1109:15 -

Nonstop15h 40m

Deal found 8/9$2,627

Mon 9/1118:10 -

1 stop22h 35m

Fri 13/1110:45 -

1 stop19h 53m

Deal found 8/9$2,486

Mon 15/209:09 -

2 stops32h 51m

Fri 19/212:00 -

2 stops52h 33m

Deal found 4/9$2,307

Mon 21/909:06 -

2 stops46h 09m

Mon 26/1000:45 -

2 stops35h 21m

Deal found 8/9$2,103

Sun 1/1118:35 -

2 stops31h 20m

Sun 22/1112:05 -

1 stop18h 40m

Deal found 4/9$2,325

Mon 16/1114:50 -

1 stop25h 30m

Sat 28/1109:20 -

Nonstop15h 40m

Deal found 8/9$2,634

Mon 30/1115:17 -

1 stop24h 43m

Tue 15/1206:55 -

2 stops23h 36m

Deal found 5/9$2,908

Wed 24/217:35 -

2 stops45h 45m

Sun 28/212:30 -

2 stops43h 45m

Deal found 4/9$2,910

Sat 27/218:10 -

2 stops26h 30m

Wed 3/306:00 -

2 stops24h 37m

Deal found 4/9$2,549

Fri 25/920:17 -

2 stops37h 23m

Sun 11/1000:10 -

2 stops36h 49m

Deal found 8/9$2,142

Sat 28/1115:27 -

1 stop24h 33m

Tue 15/1211:15 -

1 stop20h 16m

Deal found 5/9$2,922

Find flight deals from George Bush Intcntl to Australia

Round-trip from	$1,208
One-way from	$819
Popular in	July
Cheapest in	November
Average price	$2,213

17/10-9/11
3 total stops
79h 03m total
Houston to Australia

Search Deals

21/10-31/12
2 total stops
28h 14m total
Houston to Australia

Search Deals

Highest demand for flights based on searches. 10% potential increase in price ($352 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($66 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

HoustonMelbourne

IAH Houston George Bush Intcntl - MEL Melbourne

IAHMEL

Houston George Bush Intcntl

Wed 21/10

10:31-06:45

2 stops28h 14m

Melbourne

Wed 31/12

00:00-08:00

Nonstop0h 00m

$819

HoustonBrisbane

IAH Houston George Bush Intcntl - BNE Brisbane

IAHBNE

Houston George Bush Intcntl

Tue 8/12

10:57-05:50

1 stop26h 53m

Brisbane

Wed 31/12

00:00-08:00

Nonstop0h 00m

$855

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Sat 19/9

10:30-07:30

2 stops30h 00m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$860

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 7/12

22:35-06:25

2 stops38h 50m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$869

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Tue 23/2

06:30-09:50

2 stops34h 20m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$872

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Fri 25/9

22:09-07:30

1 stop42h 21m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$883

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Fri 2/10

07:00-08:00

2 stops34h 00m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$932

HoustonMelbourne

IAH Houston George Bush Intcntl - AVV Melbourne Avalon

IAHAVV

Houston George Bush Intcntl

Wed 21/10

10:31-22:50

3 stops44h 19m

Melbourne Avalon

Wed 31/12

00:00-08:00

Nonstop0h 00m

$939

HoustonMelbourne

IAH Houston George Bush Intcntl - AVV Melbourne Avalon

IAHAVV

Houston George Bush Intcntl

Sun 6/12

10:57-23:15

2 stops43h 18m

Melbourne Avalon

Wed 31/12

00:00-08:00

Nonstop0h 00m

$945

HoustonBrisbane

IAH Houston George Bush Intcntl - BNE Brisbane

IAHBNE

Houston George Bush Intcntl

Sun 6/12

10:57-10:05

2 stops31h 08m

Brisbane

Wed 31/12

00:00-08:00

Nonstop0h 00m

$968

Flights are sorted by cheapest return flights first.

Deals found on 7/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

IAH-MEL

IAH-BNE

IAH-SYD

IAH-ADL

IAH-PER

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

IAH-AU0

IAH-MEL

IAH-BNE

IAH-SYD

IAH-ADL

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

Currently, May is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Australia (average of $1,465). Flying from Houston George Bush Intcntl Airport to Australia in December is currently the most expensive (average of $2,695). 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.

How far ahead should I book a flight from Houston George Bush Intcntl Airport to Australia?

The price you pay for your flight from Houston George Bush Intcntl Airport to Australia may vary depending on when you book. For the best chance of a lower fare, look to book 40 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Related info for your journey

How long is the flight from Houston George Bush Intcntl Airport to Australia?
For as low as $1,898, Air Canada can have you in Australia from Houston George Bush Intcntl Airport in 23h 33m. Houston George Bush Intcntl Airport and Australia are separated by a distance of 13425 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.
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, May is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Australia (average of $1,465). Flying from Houston George Bush Intcntl Airport to Australia in December is currently the most expensive (average of $2,695). 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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Why should you use Cheapflights to find cheap flight tickets from George Bush Intcntl to Australia?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Australia from George Bush Intcntl.

Can Cheapflights find flights from George Bush Intcntl to Australia with no change fees?

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Cheap flights from Houston George Bush Intcntl Airport to Australia from $819

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from George Bush Intcntl to Australia

Cheapest flights from George Bush Intcntl to AustraliaExplore 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 9 September 2026.

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 9 September 2026.

Best flights from George Bush Intcntl to AustraliaDiscover carefully curated flight deals from George Bush Intcntl to Australia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Discover carefully curated flight deals from George Bush Intcntl to Australia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Direct flights from George Bush Intcntl to AustraliaExplore direct flight options from George Bush Intcntl to Australia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 September 2026.

Explore direct flight options from George Bush Intcntl to Australia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 September 2026.

Last-minute flights from George Bush Intcntl to AustraliaDiscover last-minute flight deals from George Bush Intcntl to Australia. Data last updated 9 September 2026 and is based on user searches.

Discover last-minute flight deals from George Bush Intcntl to Australia. Data last updated 9 September 2026 and is based on user searches.

One-way flights from George Bush Intcntl to AustraliaSearch for one-way flight options from George Bush Intcntl to Australia. Find affordable one-way fares based on user searches. Data last updated 9 September 2026.

Search for one-way flight options from George Bush Intcntl to Australia. Find affordable one-way fares based on user searches. Data last updated 9 September 2026.

Find flight deals from George Bush Intcntl to Australia

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Best time to book a flight from George Bush Intcntl to Australia

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Cheapflights Insights

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

How far ahead should I book a flight from Houston George Bush Intcntl Airport to Australia?

The price you pay for your flight from Houston George Bush Intcntl Airport to Australia may vary depending on when you book. For the best chance of a lower fare, look to book 40 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Related info for your journey

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

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

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

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

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

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

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George Bush Intcntl and Australia flights

Browse other George Bush Intcntl and Australia flight options. Last updated on 9 September 2026.

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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 9 September 2026.

Best flights from George Bush Intcntl to Australia
Discover carefully curated flight deals from George Bush Intcntl to Australia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Direct flights from George Bush Intcntl to Australia
Explore direct flight options from George Bush Intcntl to Australia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 September 2026.

Last-minute flights from George Bush Intcntl to Australia
Discover last-minute flight deals from George Bush Intcntl to Australia. Data last updated 9 September 2026 and is based on user searches.

One-way flights from George Bush Intcntl to Australia
Search for one-way flight options from George Bush Intcntl to Australia. Find affordable one-way fares based on user searches. Data last updated 9 September 2026.