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.

$714+ 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 21 September 2026.

Tue 20/1007:20 -

2 stops32h 45m

Tue 27/1011:10 -

2 stops34h 00m

Deal found 20/9$1,564

Sun 8/1110:37 -

3 stops32h 58m

Mon 23/1114:00 -

2 stops23h 49m

Deal found 16/9$1,643

Tue 3/1106:00 -

2 stops31h 25m

Tue 10/1111:15 -

2 stops34h 55m

Deal found 19/9$1,748

Wed 4/1121:50 -

1 stop39h 35m

Wed 18/1117:50 -

1 stop37h 25m

Deal found 17/9$1,787

Wed 4/1121:50 -

1 stop39h 35m

Wed 11/1118:40 -

2 stops36h 35m

Deal found 17/9$1,789

Tue 17/1106:00 -

2 stops31h 25m

Thu 3/1209:00 -

1 stop22h 15m

Deal found 20/9$1,810

Mon 2/1122:59 -

1 stop38h 26m

Tue 10/1113:25 -

2 stops59h 30m

Deal found 16/9$1,816

Mon 19/1005:05 -

2 stops32h 55m

Wed 4/1110:20 -

1 stop37h 35m

Deal found 20/9$1,825

Sun 25/1006:24 -

2 stops35h 06m

Tue 10/1122:45 -

1 stop29h 47m

Deal found 20/9$1,830

Wed 18/1121:50 -

1 stop39h 35m

Thu 3/1211:00 -

1 stop20h 15m

Deal found 20/9$1,832

Fri 16/1007:00 -

2 stops32h 30m

Fri 23/1009:00 -

2 stops30h 53m

Deal found 21/9$1,838

Mon 19/1005:05 -

2 stops32h 55m

Mon 2/1123:55 -

1 stop30h 20m

Deal found 20/9$1,839

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 21 September 2026.

Fri 16/1007:00 -

2 stops32h 30m

Fri 23/1009:00 -

2 stops30h 53m

Deal found 18/9$1,838

Mon 23/1116:25 -

2 stops48h 20m

Mon 30/1110:45 -

2 stops42h 36m

Deal found 17/9$1,967

Tue 17/1115:19 -

2 stops49h 36m

Mon 23/1108:30 -

2 stops49h 08m

Deal found 19/9$2,222

Wed 18/1118:46 -

1 stop21h 19m

Tue 1/1209:15 -

Nonstop15h 40m

Deal found 20/9$2,314

Fri 13/1116:15 -

1 stop24h 15m

Fri 27/1110:40 -

1 stop20h 00m

Deal found 19/9$2,461

Thu 15/1020:10 -

2 stops28h 45m

Thu 22/1006:20 -

2 stops25h 05m

Deal found 17/9$2,649

Tue 26/118:56 -

2 stops32h 44m

Tue 16/221:15 -

2 stops33h 02m

Deal found 20/9$2,756

Wed 24/217:35 -

2 stops45h 45m

Sun 28/212:30 -

2 stops43h 45m

Deal found 19/9$2,946

Mon 9/1109:45 -

1 stop26h 50m

Sat 21/1114:40 -

2 stops39h 35m

Deal found 20/9$2,083

Thu 24/1209:33 -

1 stop31h 12m

Mon 11/110:45 -

2 stops48h 15m

Deal found 18/9$2,301

Tue 20/1016:45 -

2 stops27h 25m

Tue 27/1006:00 -

2 stops23h 38m

Deal found 20/9$2,100

Sun 8/1120:01 -

2 stops35h 19m

Wed 11/1100:50 -

2 stops39h 09m

Deal found 16/9$2,330

Fri 13/1114:50 -

2 stops24h 40m

Mon 23/1111:20 -

2 stops21h 45m

Deal found 19/9$2,402

Thu 5/1109:13 -

2 stops47h 42m

Thu 12/1108:30 -

2 stops44h 19m

Deal found 20/9$2,107

Mon 15/209:09 -

2 stops32h 51m

Fri 19/212:00 -

2 stops47h 29m

Deal found 18/9$2,335

Tue 8/1209:33 -

2 stops31h 12m

Thu 21/106:05 -

3 stops43h 00m

Deal found 21/9$2,349

Thu 12/1119:20 -

1 stop20h 10m

Tue 24/1107:35 -

1 stop40h 20m

Deal found 19/9$2,415

Fri 13/1119:55 -

1 stop22h 30m

Sun 29/1112:05 -

1 stop18h 40m

Deal found 18/9$2,684

Mon 25/118:56 -

2 stops32h 44m

Tue 16/221:15 -

2 stops33h 02m

Deal found 20/9$2,756

Tue 17/1111:55 -

3 stops32h 40m

Tue 24/1106:35 -

3 stops42h 32m

Deal found 17/9$2,109

Fri 20/1115:17 -

2 stops49h 38m

Tue 24/1100:25 -

2 stops43h 15m

Deal found 19/9$2,389

Fri 13/1112:40 -

2 stops35h 10m

Sun 29/1119:55 -

1 stop28h 30m

Deal found 19/9$2,437

Mon 26/1018:35 -

2 stops60h 55m

Fri 30/1006:20 -

2 stops49h 55m

Deal found 19/9$3,066

Thu 5/1119:55 -

1 stop30h 55m

Sun 29/1115:20 -

2 stops41h 15m

Deal found 16/9$2,795

Sun 21/218:10 -

2 stops26h 55m

Tue 9/306:00 -

2 stops25h 37m

Deal found 17/9$2,114

Sat 21/1115:27 -

2 stops46h 48m

Wed 2/1222:20 -

2 stops38h 29m

Deal found 20/9$2,402

Sat 5/1218:10 -

1 stop21h 20m

Sat 23/111:20 -

1 stop19h 39m

Deal found 20/9$2,461

Mon 8/218:10 -

2 stops26h 55m

Mon 15/206:00 -

2 stops25h 38m

Deal found 17/9$2,119

Sun 1/1119:55 -

1 stop30h 55m

Sun 8/1118:50 -

1 stop33h 25m

Deal found 17/9$2,892

Sat 13/217:35 -

2 stops38h 45m

Wed 17/217:55 -

2 stops36h 50m

Deal found 20/9$3,224

Find flight deals from George Bush Intcntl to Australia

Round-trip from	$1,564
One-way from	$714
Popular in	June
Cheapest in	November
Average price	$2,190

20/10-27/10
4 total stops
66h 45m total
Houston to Australia

Search Deals

24/10-31/12
2 total stops
23h 44m total
Houston to Australia

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($180 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($63 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

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Fri 23/10

22:59-08:55

1 stop41h 56m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$769

HoustonMelbourne

IAH Houston George Bush Intcntl - MEL Melbourne

IAHMEL

Houston George Bush Intcntl

Sun 22/11

07:00-07:30

2 stops31h 30m

Melbourne

Wed 31/12

00:00-08:00

Nonstop0h 00m

$878

HoustonMelbourne

IAH Houston George Bush Intcntl - AVV Melbourne Avalon

IAHAVV

Houston George Bush Intcntl

Sat 21/11

12:22-09:45

2 stops28h 23m

Melbourne Avalon

Wed 31/12

00:00-08:00

Nonstop0h 00m

$930

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Fri 2/10

20:17-08:00

2 stops44h 43m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$936

HoustonBrisbane

IAH Houston George Bush Intcntl - BNE Brisbane

IAHBNE

Houston George Bush Intcntl

Fri 12/3

06:30-10:15

2 stops35h 45m

Brisbane

Wed 31/12

00:00-08:00

Nonstop0h 00m

$937

HoustonMelbourne

IAH Houston George Bush Intcntl - MEL Melbourne

IAHMEL

Houston George Bush Intcntl

Fri 16/10

07:20-07:30

3 stops56h 10m

Melbourne

Wed 31/12

00:00-08:00

Nonstop0h 00m

$972

HoustonMelbourne

IAH Houston George Bush Intcntl - AVV Melbourne Avalon

IAHAVV

Houston George Bush Intcntl

Tue 24/11

12:22-15:35

2 stops34h 13m

Melbourne Avalon

Wed 31/12

00:00-08:00

Nonstop0h 00m

$974

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Sat 26/9

22:09-07:05

1 stop41h 56m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,070

HoustonMelbourne

IAH Houston George Bush Intcntl - MEL Melbourne

IAHMEL

Houston George Bush Intcntl

Thu 11/2

09:09-23:05

2 stops44h 56m

Melbourne

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,073

HoustonMelbourne

IAH Houston George Bush Intcntl - AVV Melbourne Avalon

IAHAVV

Houston George Bush Intcntl

Thu 10/12

09:55-07:35

3 stops52h 40m

Melbourne Avalon

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,092

Flights are sorted by cheapest return flights first.

Deals found on 17/9

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-SYD

IAH-BNE

IAH-MEL

IAH-CNS

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-SYD

IAH-BNE

IAH-MEL

IAH-CNS

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 $1,507). Flying from Houston George Bush Intcntl Airport to Australia in December is currently the most expensive (average of $2,866). 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 43 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 $2,314, Air Canada can have you in Australia from Houston George Bush Intcntl Airport in 21h 19m. 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.
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 $1,507). Flying from Houston George Bush Intcntl Airport to Australia in December is currently the most expensive (average of $2,866). 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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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from George Bush Intcntl to Australia. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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?

Yes! Cheapflights helps users easily 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 $714

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/10. 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 21 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 21 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 21 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 21 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 21 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 21 September 2026.

Last-minute flights from George Bush Intcntl to AustraliaDiscover last-minute flight deals from George Bush Intcntl to Australia. Data last updated 21 September 2026 and is based on user searches.

Discover last-minute flight deals from George Bush Intcntl to Australia. Data last updated 21 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 21 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 21 September 2026.

Find flight deals from George Bush Intcntl to Australia

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

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.

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 43 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 21 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 21 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 21 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 21 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 21 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 21 September 2026.