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Cheap flights from Houston George Bush Intcntl Airport to Sydney from $861

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 31/3. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — SYD
1 Nov — 8 Nov1
1 adult
1 adult, Economy

Cheap flight deals from George Bush Intcntl to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 2 October 2025.

Round-trip from

$1,572

One-way from

$861

Popular in

December

Cheapest in

April

Average price

$1,865
Air New Zealand
  • Air New Zealand
  • 3/11-16/11
  • 2 total stops
  • 40h 50m total
  • Houston to Sydney
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Fiji Airways
  • Fiji Airways
  • 31/3
  • 2 total stops
  • 24h 24m total
  • Houston to Sydney
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($623 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($100 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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Find 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
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 2 October 2025.

Mon 3/1120:05IAH - SYD
1 stop19h 40mAir New Zealand
Sun 16/1109:55SYD - IAH
1 stop21h 10mAir New Zealand
Deal found 30/9$1,572
Mon 3/1114:05IAH - SYD
2 stops25h 40mMultiple Airlines
Sun 16/1111:45SYD - IAH
2 stops27h 19mMultiple Airlines
Deal found 30/9$1,598
Mon 1/1220:05IAH - SYD
1 stop19h 40mAir New Zealand
Sun 14/1209:55SYD - IAH
1 stop21h 10mAir New Zealand
Deal found 1/10$1,611
Tue 11/1116:20IAH - SYD
2 stops23h 25mAir New Zealand
Tue 18/1111:45SYD - IAH
2 stops26h 38mAir New Zealand
Deal found 30/9$1,616
Tue 28/1016:20IAH - SYD
2 stops26h 10mAir New Zealand
Sat 8/1119:15SYD - IAH
1 stop35h 50mAir New Zealand
Deal found 30/9$1,631
Mon 8/1220:05IAH - SYD
1 stop29h 00mAir New Zealand
Sun 21/1209:55SYD - IAH
1 stop21h 10mAir New Zealand
Deal found 30/9$1,634
Sun 23/1120:05IAH - SYD
1 stop19h 40mAir New Zealand
Sun 7/1211:45SYD - IAH
1 stop19h 20mAir New Zealand
Deal found 1/10$1,641
Mon 24/1120:05IAH - SYD
1 stop19h 40mAir New Zealand
Sun 7/1211:45SYD - IAH
1 stop19h 20mAir New Zealand
Deal found 30/9$1,643

Cheapflights Fare Finder

 
Customise your flight search to find flights from George Bush Intcntl to Sydney 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 2 October 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Sydney that are best for you.

Fly from

George Bush Intcntl

Fly to

Sydney

Route

Depart

Return

Price

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 16/10

19:10-19:45

2 stops32h 35m

Sydney Kingsford Smith

Sat 1/11

21:40-19:26

2 stops37h 46m

$2,123

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

$2,189

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 30/11

18:50-09:15

1 stop21h 25m

Sydney Kingsford Smith

Tue 9/12

11:50-10:25

Nonstop15h 35m

$2,197

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 2/2

20:25-07:00

Nonstop17h 35m

Sydney Kingsford Smith

Sun 15/2

12:10-17:03

1 stop21h 53m

$2,206

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 15/3

21:30-07:00

Nonstop17h 30m

Sydney Kingsford Smith

Tue 31/3

10:30-21:15

1 stop26h 45m

$2,206

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 5/11

16:47-12:30

2 stops26h 43m

Sydney Kingsford Smith

Thu 27/11

14:00-13:33

2 stops40h 33m

$2,216

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 30/11

05:15-08:30

2 stops34h 15m

Sydney Kingsford Smith

Tue 9/12

10:40-17:44

2 stops24h 04m

$2,219

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 29/11

20:35-09:15

1 stop43h 40m

Sydney Kingsford Smith

Mon 8/12

11:50-10:25

Nonstop15h 35m

$2,222

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 27/11

20:25-07:00

Nonstop17h 35m

Sydney Kingsford Smith

Mon 8/12

11:50-10:25

Nonstop15h 35m

$2,265

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 27/11

20:25-07:00

Nonstop17h 35m

Sydney Kingsford Smith

Tue 9/12

11:50-10:25

Nonstop15h 35m

$2,265

Flights are sorted by cheapest return flights first.

Deals found on 30/9

Showing 1-10 of 19 results
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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
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?

Use this chart to determine the optimal time to book a return flight from George Bush Intcntl to Sydney. Price data was last updated on 26 September 2025.

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 16 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, May is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Sydney (average of $129). Flying from Houston George Bush Intcntl Airport to Sydney in October is currently the most expensive (average of $171). 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?

Find hourly flight availability from George Bush Intcntl to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 October 2025.

It’s typically best to fly out from Houston George Bush Intcntl Airport to Sydney in the morning. Doing so could potentially save you 58% on the flight price compared to flying at midday, which is usually more expensive.

How much does it cost for a return flight from Houston George Bush Intcntl Airport to Sydney?

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?

    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 $2,189, Alaska Airlines can have you in Sydney from Houston George Bush Intcntl Airport in 17h 30m. 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, May is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Sydney (average of $129). Flying from Houston George Bush Intcntl Airport to Sydney in October is currently the most expensive (average of $171). 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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Can Cheapflights notify me if prices for flights from George Bush Intcntl to Sydney become cheaper?

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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