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

For as low as $1,447, United Airlines can have you in Sydney from Houston George Bush Intcntl Airport in 17h 35m. Airlines will cover a distance of 8591 mi. All flights are typically nonstop.

What are the cheapest airlines flying from Houston George Bush Intcntl Airport to Sydney round-trip?

Cheapflights users have booked flights from Houston George Bush Intcntl Airport to Sydney round-trip from $799. Other airlines that can offer you cheap pricing are American Airlines, from $829, and Delta, from $830. These flights start at 34% lower than the current average price 3 months from now.

In terms of precipitation, rainfall in Sydney ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Sydney when rainfall is around 2.0 in.

If weather is an important factor for your trip to Sydney, 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 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

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

While on average a flight from Houston George Bush Intcntl Airport to Sydney is generally $1,250, our data shows the cheapest flight currently is $846. When looking at the most popular route, (Houston George Bush Intcntl - Sydney Kingsford Smith), you can expect to pay $1,023 for that flight.

What are the most popular airlines that fly from Houston George Bush Intcntl Airport to Sydney?

When booking a flight from Houston George Bush Intcntl Airport to Sydney, you may want to consider flying on American Airlines, Air Canada or Delta as they are the most popular for this route.

Where are the most common layover locations when flying from Houston George Bush Intcntl Airport to Sydney?

Houston George Bush Intcntl Airport to Sydney flights have a layover in Auckland most often.

Where are the least popular layover locations for Houston George Bush Intcntl Airport to Sydney flights?

Houston George Bush Intcntl Airport to Sydney flights have a layover in Los Angeles the least frequently.

What are some popular things to do or see while on a layover in Auckland?

Most Auckland visitors opt to spend their time experiencing New Zealand Maritime Museum, Sky Tower, and University Clock Tower. Travelers on a layover in Auckland can visit New Zealand Maritime Museum, Sky Tower, and University Clock Tower, by traveling 11.4 mi, 10.9 mi, and 10.7 mi, respectively after landing at Auckland Intl. Travelers can book a car rental at Auckland Intl for about $30 per day to make their sightseeing more efficient.

What is the cheapest day to fly round-trip from Houston George Bush Intcntl Airport to Sydney?

Flights from Houston George Bush Intcntl Airport to Sydney are found to be more expensive on Monday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Sydney.

What is the cheapest month to fly from Houston George Bush Intcntl Airport to Sydney?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, July can be a great choice for travel to Sydney. Flights to Sydney from Houston George Bush Intcntl Airport in July are about $1,151 on average during July, but can be found for as low as $822.

What airport do you fly into for flights to Sydney from Houston George Bush Intcntl?

Sydney Kingsford Smith (SYD), located 4.6 mi from the city center, is the airport you fly into when you book flights from Houston George Bush Intcntl to Sydney. 7 airlines have flights to Kingsford Smith from Houston George Bush Intcntl on a regular basis. Booking flights from Houston George Bush Intcntl to Sydney Kingsford Smith should not be difficult; the airport handles an average of 0 inbound flights from Houston George Bush Intcntl per day.

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

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

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

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 Sydney.

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

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

$470+ Flights from Houston George Bush Intcntl Airport to Sydney

Q: How much does it cost to fly round-trip from Houston George Bush Intcntl Airport to Sydney?

Airfare is below average for this route at the moment. Houston George Bush Intcntl Airport to Sydney flights typically cost between $1,195 and $1,427 in September. The cheapest round-trip price found within the last 3 days was $1,021 on Multiple Airlines (Sep 23-Sep 30).

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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from Houston George Bush Intcntl to Sydney Kingsford Smith are usually found in April or June, booked 16 days in advance, depart on a Monday or Thursday and return on a Thursday

Cheap flight deals from George Bush Intcntl to Sydney

Round-trip from	$1,021 (Trip.com)
One-way from	$470 (Kiwi.com)
Popular in	December
Cheapest in	April
Average price	$1,342
Good round-trip deal	$1,446 or less
Good one-way deal	$846 or less

From Houston George Bush Intcntl to Sydney Kingsford Smith

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One-way flight from Houston George Bush Intcntl to Sydney Kingsford Smith

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Highest demand for flights based on searches. 17% potential increase in price ($265 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($47 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Price to beat on a round-trip flight from Houston George Bush Intcntl to Sydney Kingsford Smith.

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Price to beat on a one-way flight from Houston George Bush Intcntl to Sydney Kingsford Smith.

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Find flight deals from George Bush Intcntl to Sydney

Cheapest flights from George Bush Intcntl to Sydney
Explore the most affordable flight options available from George Bush Intcntl to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Tue 9/237:10 amIAH - SYD

2 stops37h 35mMultiple Airlines

Tue 9/301:15 pmSYD - IAH

2 stops24h 11mMultiple Airlines

Deal found 9/9

$1,021

Sun 10/198:55 pmIAH - SYD

1 stop21h 40mAir New Zealand

Sun 10/2611:45 amSYD - IAH

1 stop19h 20mAir New Zealand

Deal found 9/9

$1,022

Mon 11/38:05 pmIAH - SYD

1 stop21h 25mAir New Zealand

Sun 11/1611:45 amSYD - IAH

1 stop19h 20mAir New Zealand

Deal found 9/10

$1,023

Mon 10/205:45 amIAH - SYD

2 stops34h 20mMultiple Airlines

Sun 11/22:05 pmSYD - IAH

2 stops25h 18mMultiple Airlines

Deal found 9/9

$1,024

Mon 10/204:25 pmIAH - SYD

2 stops24h 20mAir New Zealand

Sun 11/211:45 amSYD - IAH

1 stop19h 20mAir New Zealand

Deal found 9/9

$1,025

Mon 11/108:05 pmIAH - SYD

1 stop19h 40mAir New Zealand

Sun 11/231:55 pmSYD - IAH

2 stops27h 04mAir New Zealand

Deal found 9/10

$1,032

Mon 10/279:05 pmIAH - SYD

1 stop21h 25mAir New Zealand

Sun 11/97:45 amSYD - IAH

1 stop23h 20mAir New Zealand

Deal found 9/9

$1,043

Best flights from George Bush Intcntl to Sydney
Discover carefully curated flight deals from George Bush Intcntl to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Tue 2/108:25 pmIAH - SYD

Nonstop17h 35mUnited Airlines

Tue 3/2411:50 amSYD - IAH

Nonstop15h 35mUnited Airlines

Deal found 9/9

$1,447

Wed 10/85:30 pmIAH - SYD

2 stops27h 15mMultiple Airlines

Tue 10/212:15 pmSYD - IAH

2 stops23h 52mMultiple Airlines

Deal found 9/10

$1,485

Tue 3/109:30 pmIAH - SYD

Nonstop17h 30mUnited Airlines

Tue 3/2411:50 amSYD - IAH

Nonstop15h 35mUnited Airlines

Deal found 9/9

$1,447

Wed 3/48:25 pmIAH - SYD

Nonstop17h 35mUnited Airlines

Sun 3/1511:50 amSYD - IAH

Nonstop15h 35mUnited Airlines

Deal found 9/11

$1,448

Mon 11/178:25 pmIAH - SYD

Nonstop17h 35mUnited Airlines

Tue 11/2511:50 amSYD - IAH

Nonstop15h 35mUnited Airlines

Deal found 9/11

$1,448

Tue 2/248:25 pmIAH - SYD

Nonstop17h 35mUnited Airlines

Wed 3/1111:50 amSYD - IAH

Nonstop15h 35mUnited Airlines

Deal found 9/11

$1,448

Sun 11/22:23 pmIAH - SYD

1 stop25h 52mUnited Airlines

Sun 11/1611:50 amSYD - IAH

Nonstop15h 35mUnited Airlines

Deal found 9/9

$1,451

Wed 2/182:40 pmIAH - SYD

1 stop25h 35mUnited Airlines

Mon 3/911:50 amSYD - IAH

Nonstop15h 35mUnited Airlines

Deal found 9/11

$1,452

Wed 11/56:50 pmIAH - SYD

1 stop21h 25mUnited Airlines

Thu 11/2711:50 amSYD - IAH

Nonstop15h 35mUnited Airlines

Deal found 9/9

$1,501

Last-minute flights from George Bush Intcntl to Sydney
Discover last-minute flight deals from George Bush Intcntl to Sydney. Data last updated September 11, 2025 and is based on user searches.

Tue 9/237:10 amIAH - SYD

2 stops37h 35mMultiple Airlines

Tue 9/301:15 pmSYD - IAH

2 stops24h 11mMultiple Airlines

Deal found 9/9

$1,021

Mon 10/134:25 pmIAH - SYD

2 stops24h 20mAir New Zealand

Sun 10/2611:45 amSYD - IAH

1 stop19h 20mAir New Zealand

Deal found 9/10

$1,068

Sun 10/198:55 pmIAH - SYD

1 stop21h 40mAir New Zealand

Sun 10/2611:45 amSYD - IAH

1 stop19h 20mAir New Zealand

Deal found 9/9

$1,022

Mon 10/205:45 amIAH - SYD

2 stops34h 20mMultiple Airlines

Sun 11/22:05 pmSYD - IAH

2 stops25h 18mMultiple Airlines

Deal found 9/9

$1,024

Mon 10/204:25 pmIAH - SYD

2 stops24h 20mAir New Zealand

Sun 11/211:45 amSYD - IAH

1 stop19h 20mAir New Zealand

Deal found 9/9

$1,025

Mon 10/279:05 pmIAH - SYD

1 stop21h 25mAir New Zealand

Sun 11/97:45 amSYD - IAH

1 stop23h 20mAir New Zealand

Deal found 9/9

$1,043

Tue 10/282:20 pmIAH - SYD

2 stops28h 10mAir New Zealand

Sat 11/87:15 pmSYD - IAH

1 stop35h 50mAir New Zealand

Deal found 9/9

$1,067

One-way flights from George Bush Intcntl to Sydney
Search for one-way flight options from George Bush Intcntl to Sydney. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Tue 10/2111:42 amIAH - SYD

2 stops35h 58mMultiple Airlines

Deal found 9/9

$470

Tue 11/187:00 amIAH - SYD

2 stops33h 00mMultiple Airlines

Deal found 9/10

$501

Sat 12/66:28 pmIAH - SYD

2 stops25h 02mFiji Airways

Deal found 9/9

$575

Mon 10/1310:12 pmIAH - SYD

2 stops42h 48mMultiple Airlines

Deal found 9/11

$581

Sun 12/76:20 amIAH - SYD

2 stops56h 05mMultiple Airlines

Deal found 9/9

$610

Mon 12/86:20 amIAH - SYD

2 stops32h 05mMultiple Airlines

Deal found 9/9

$611

Fri 12/56:20 amIAH - SYD

2 stops32h 05mMultiple Airlines

Deal found 9/9

$615

Thu 12/46:20 amIAH - SYD

2 stops32h 05mMultiple Airlines

Deal found 9/9

$616

Mon 12/14:47 pmIAH - SYD

2 stops26h 43mMultiple Airlines

Deal found 9/10

$637

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 2/10

8:25 pm-7:00 am

Nonstop17h 35m

Sydney Kingsford Smith

Tue 3/24

11:50 am-11:25 am

Nonstop15h 35m

$1,447

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 3/10

9:30 pm-7:00 am

Nonstop17h 30m

Sydney Kingsford Smith

Tue 3/24

11:50 am-11:25 am

Nonstop15h 35m

$1,447

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 3/4

8:25 pm-7:00 am

Nonstop17h 35m

Sydney Kingsford Smith

Sun 3/15

11:50 am-11:25 am

Nonstop15h 35m

$1,448

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 11/17

8:25 pm-7:00 am

Nonstop17h 35m

Sydney Kingsford Smith

Tue 11/25

11:50 am-10:25 am

Nonstop15h 35m

$1,448

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 2/24

8:25 pm-7:00 am

Nonstop17h 35m

Sydney Kingsford Smith

Wed 3/11

11:50 am-11:25 am

Nonstop15h 35m

$1,448

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 11/2

2:23 pm-9:15 am

1 stop25h 52m

Sydney Kingsford Smith

Sun 11/16

11:50 am-10:25 am

Nonstop15h 35m

$1,451

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 2/18

2:40 pm-9:15 am

1 stop25h 35m

Sydney Kingsford Smith

Mon 3/9

11:50 am-11:25 am

Nonstop15h 35m

$1,452

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 10/8

5:30 pm-12:45 pm

2 stops27h 15m

Sydney Kingsford Smith

Tue 10/21

2:15 pm-10:07 pm

2 stops23h 52m

$1,485

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 11/5

6:50 pm-9:15 am

1 stop21h 25m

Sydney Kingsford Smith

Thu 11/27

11:50 am-10:25 am

Nonstop15h 35m

$1,501

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 10/21

11:42 am-3:40 pm

2 stops35h 58m

$470

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 18 results

The best insider tips for Houston George Bush Intcntl Airport to Sydney flights

Cheapflights partnered with top experts to bring you the best recommendations for your Houston George Bush Intcntl Airport to Sydney trip

Airports

IAH

Check security wait times on the IAH website to plan your arrival at the airport efficiently.

SYD

Use the T8 Airport Line for a quick 15-25 minute ride to central Sydney after clearing customs.

Our travel experts

Evie Carrick

Expert on IAH

John Walton

Expert on SYD

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

Have a flexible travel schedule? Discover the best time to fly to Sydney from George Bush Intcntl with our price prediction graph.

Estimated round-trip 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 Sydney

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

To ensure you get the cheapest price possible for a flight from Houston George Bush Intcntl Airport to Sydney, you should look to book at least 16 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, February is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Sydney (average of $1,035). Flying from Houston George Bush Intcntl Airport to Sydney in December is currently the most expensive (average of $1,626). 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 SYD?

One of the essential ways to save on airfare from Houston George Bush Intcntl Airport to Sydney is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 51% on airfare.

What is the cheapest day to fly from Houston George Bush Intcntl Airport to Sydney?

Travelers seeking maximum savings on their Houston George Bush Intcntl Airport to Sydney flight should consider departing on Sunday at noon when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Houston George Bush Intcntl Airport to Sydney?

Reviews of airlines servicing Sydney

Get a feel of what it's like to fly with Air New Zealand, Delta, and Qantas Airways from Houston George Bush Intcntl Airport to Sydney by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Air New Zealand

8.0

Very good

505 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Air New Zealand

8.0

Very good

505 reviews

Air New Zealand

8.0

Very good

505 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Delta

8.0

Very good

7,960 reviews

Air New Zealand

8.0

Very good

505 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Qantas Airways

7.5

Good

905 reviews

Air New Zealand

8.0

Very good

505 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

United Airlines

7.4

Good

8,937 reviews

Air New Zealand

8.0

Very good

505 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

American Airlines

7.2

Good

10,000 reviews

Air New Zealand

8.0

Very good

505 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Related info for your journey

What airport do you fly into for flights to Sydney from Houston George Bush Intcntl?
Sydney Kingsford Smith (SYD), located 4.6 mi from the city center, is the airport you fly into when you book flights from Houston George Bush Intcntl to Sydney. 7 airlines have flights to Kingsford Smith from Houston George Bush Intcntl on a regular basis. Booking flights from Houston George Bush Intcntl to Sydney Kingsford Smith should not be difficult; the airport handles an average of 0 inbound flights from Houston George Bush Intcntl per day.
How long is the flight from Houston George Bush Intcntl Airport to Sydney?
For as low as $1,447, United Airlines can have you in Sydney from Houston George Bush Intcntl Airport in 17h 35m. Airlines will cover a distance of 8591 mi. All flights are typically nonstop.
What are the cheapest airlines flying from Houston George Bush Intcntl Airport to Sydney round-trip?
Cheapflights users have booked flights from Houston George Bush Intcntl Airport to Sydney round-trip from $799. Other airlines that can offer you cheap pricing are American Airlines, from $829, and Delta, from $830. These flights start at 34% lower than the current average price 3 months from now.
What are the cheapest flights from Houston George Bush Intcntl Airport to Sydney?
While on average a flight from Houston George Bush Intcntl Airport to Sydney is generally $1,250, our data shows the cheapest flight currently is $846. When looking at the most popular route, (Houston George Bush Intcntl - Sydney Kingsford Smith), you can expect to pay $1,023 for that flight.
Where are the most common layover locations when flying from Houston George Bush Intcntl Airport to Sydney?
Houston George Bush Intcntl Airport to Sydney flights have a layover in Auckland most often.
What are some popular things to do or see while on a layover in Auckland?
Most Auckland visitors opt to spend their time experiencing New Zealand Maritime Museum, Sky Tower, and University Clock Tower. Travelers on a layover in Auckland can visit New Zealand Maritime Museum, Sky Tower, and University Clock Tower, by traveling 11.4 mi, 10.9 mi, and 10.7 mi, respectively after landing at Auckland Intl. Travelers can book a car rental at Auckland Intl for about $30 per day to make their sightseeing more efficient.
Where are the least popular layover locations for Houston George Bush Intcntl Airport to Sydney flights?
Houston George Bush Intcntl Airport to Sydney flights have a layover in Los Angeles the least frequently.
Can I find deals for flights from George Bush Intcntl to Sydney that include hotel bookings?
Yes. In addition to deals on George Bush Intcntl to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from George Bush Intcntl to Sydney?
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 Sydney.
Can I find deals for business class flights from George Bush Intcntl to Sydney?
Yes. Cheapflights offers flight deals from George Bush Intcntl to Sydney 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 Sydney?
Currently, February is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Sydney (average of $1,035). Flying from Houston George Bush Intcntl Airport to Sydney in December is currently the most expensive (average of $1,626). 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.

See more FAQs

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Other flights to Sydney

Top 7 airlines flying from George Bush Intcntl to Sydney

Airline	Cheapest	Average	Flexibility	On-time
Qantas Airways	Cheapest$799	Average$956	FlexibilityNo cancel fee	On-time74%
American Airlines	Cheapest$829	Average$868	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$830	Average$1,032	FlexibilityNo cancel fee	On-timeN/A
Air New Zealand	Cheapest$961	Average$1,395	FlexibilityNo cancel fee	On-time78%
Fiji Airways	Cheapest$983	Average$1,161	FlexibilityNo cancel fee	On-time74%
Air Canada	Cheapest$1,037	Average$1,331	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$1,352	Average$1,704	FlexibilityNo cancel fee	On-time69%

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$470+ Cheap flights from George Bush Intcntl (IAH) to Sydney (SYD)

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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from George Bush Intcntl to Sydney with Cheapflights

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3. Compare prices and book

Cheapflights Tip: The best prices from Houston George Bush Intcntl to Sydney Kingsford Smith are usually found in April or June, booked 16 days in advance, depart on a Monday or Thursday and return on a Thursday

Cheap flight deals from George Bush Intcntl to Sydney

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One-way from

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Good one-way deal

Find flight deals from George Bush Intcntl to Sydney

Cheapest flights from George Bush Intcntl to SydneyExplore the most affordable flight options available from George Bush Intcntl to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Explore the most affordable flight options available from George Bush Intcntl to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Cheapflights Fare Finder

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

The best insider tips for Houston George Bush Intcntl Airport to Sydney flights

Cheapflights partnered with top experts to bring you the best recommendations for your Houston George Bush Intcntl Airport to Sydney trip

Airports

IAH

SYD

Our travel experts

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

Have a flexible travel schedule? Discover the best time to fly to Sydney from George Bush Intcntl with our price prediction graph.

Cheapflights Insights

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

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

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

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

What is the cheapest day to fly from Houston George Bush Intcntl Airport to Sydney?

How much does it cost to fly round-trip from Houston George Bush Intcntl Airport to Sydney?

Reviews of airlines servicing Sydney

Get a feel of what it's like to fly with Air New Zealand, Delta, and Qantas Airways from Houston George Bush Intcntl Airport to Sydney by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What airport do you fly into for flights to Sydney from Houston George Bush Intcntl?

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

What are the cheapest airlines flying from Houston George Bush Intcntl Airport to Sydney round-trip?

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

Where are the most common layover locations when flying from Houston George Bush Intcntl Airport to Sydney?

What are some popular things to do or see while on a layover in Auckland?

Where are the least popular layover locations for Houston George Bush Intcntl Airport to Sydney flights?

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

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

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

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

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Alternative routes for George Bush Intcntl to Sydney

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Top 7 airlines flying from George Bush Intcntl to Sydney

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Cheapest flights from George Bush Intcntl to Sydney
Explore the most affordable flight options available from George Bush Intcntl to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.