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Cheap flights from Houston George Bush Intcntl Airport to Sydney from $728

IAH — SYD
24 Oct — 31 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from George Bush Intcntl to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from George Bush Intcntl to Sydney

Tue 20/1007:20 -
2 stops32h 45m
Tue 27/1011:10 -
2 stops34h 00m
Deal found 20/9$1,577
Thu 12/1106:00 -
2 stops31h 25m
Tue 17/1106:25 -
1 stop24h 50m
Deal found 24/9$1,799
Sat 24/1007:20 -
2 stops31h 05m
Thu 29/1011:00 -
1 stop20h 15m
Deal found 23/9$1,818
Tue 17/1106:00 -
2 stops31h 25m
Thu 3/1209:00 -
1 stop22h 15m
Deal found 20/9$1,825
Thu 22/1010:37 -
3 stops43h 13m
Thu 29/1014:05 -
3 stops31h 05m
Deal found 24/9$1,829
Wed 18/1121:50 -
1 stop39h 35m
Thu 3/1211:00 -
1 stop20h 15m
Deal found 20/9$1,847
Wed 11/1121:50 -
1 stop39h 35m
Wed 25/1112:30 -
2 stops42h 45m
Deal found 20/9$1,870
Tue 3/1121:50 -
1 stop39h 35m
Wed 11/1109:00 -
2 stops43h 32m
Deal found 21/9$1,871

Find flight deals from George Bush Intcntl to Sydney

Round-trip from

$1,577

One-way from

$728

Popular in

December

Cheapest in

November

Average price

$2,078
20/10-27/10
  • 20/10-27/10
  • 4 total stops
  • 66h 45m total
  • Houston to Sydney
Search Deals
4/11-31/12
  • 4/11-31/12
  • 2 total stops
  • 31h 25m total
  • Houston to Sydney
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($147 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($88 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
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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.

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Cheapest return flight

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Thu 15/10

07:00-09:00

2 stops34h 00m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$888

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 25/1

21:00-19:25

2 stops53h 25m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,194
Fastest return journey

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 9/11

20:25-07:00

Nonstop17h 35m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,672

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Sun 24/1

20:25-07:00

Nonstop17h 35m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,672

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Tue 6/10

15:23-08:05

1 stop24h 42m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,792

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 14/12

19:55-08:20

2 stops67h 25m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,830

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Wed 7/10

15:58-07:50

1 stop23h 52m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,836

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Wed 7/10

18:46-08:00

1 stop21h 14m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,836

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Fri 16/10

21:54-19:45

2 stops53h 51m

Sydney Kingsford Smith

Mon 19/10

21:45-17:16

2 stops35h 31m

$2,703

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Wed 7/10

07:00-09:00

2 stops34h 00m

Sydney Kingsford Smith

Mon 12/10

11:15-14:53

2 stops43h 38m

$2,747

Flights are sorted by cheapest return flights first.

Deals found on 21/9

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

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 return price

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?

The price you pay for your flight from Houston George Bush Intcntl Airport to Sydney may vary depending on when you book. For the best chance of a lower fare, look to book 56 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, November is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Sydney (average of $1,987). Flying from Houston George Bush Intcntl Airport to Sydney in December is currently the most expensive (average of $2,918). 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 much does it cost for a return flight 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 $1,767 and $2,200 in October.
The cheapest return price found within the last 5 days was $1,577 on Multiple Airlines (20 Oct–27 Oct).

Related info for your journey

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

    For a flight from Houston George Bush Intcntl to Sydney, you will be flying into Kingsford Smith. Sydney Kingsford Smith (SYD) is just 7.5 km from the centre vof the city. Kingsford Smith is the only Sydney airport and it handles 0 inbound flights from Houston George Bush Intcntl per day. 0 airlines have flights to Sydney Kingsford Smith from Houston George Bush Intcntl on a regular basis.

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

    For as low as $2,468, United Airlines can have you in Sydney from Houston George Bush Intcntl Airport in 17h 35m. The distance from Houston George Bush Intcntl Airport to Sydney is about 13826 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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 holiday 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, November is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Sydney (average of $1,987). Flying from Houston George Bush Intcntl Airport to Sydney in December is currently the most expensive (average of $2,918). 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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Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from George Bush Intcntl today and book when prices fit your budget.

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