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Cheap flights from Houston George Bush Intcntl Airport to Sydney from $777

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 25/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — SYD
20 Aug — 27 Aug1
1 adult

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 15 August 2025.

Round-trip from

$1,371

One-way from

$777

Popular in

December

Cheapest in

April

Average price

$1,681
7/9-30/9
  • 7/9-30/9
  • 4 total stops
  • 78h 15m total
  • Houston to Sydney
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25/10
  • 25/10
  • 2 total stops
  • 32h 50m total
  • Houston to Sydney
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($666 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease ($121 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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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 15 August 2025.

Sun 7/907:10IAH - SYD
2 stops48h 00mMultiple Airlines
Tue 30/913:15SYD - IAH
2 stops30h 15mMultiple Airlines
Deal found 13/8$1,371
Wed 27/808:00IAH - SYD
2 stops36h 45mMultiple Airlines
Tue 2/913:15SYD - IAH
2 stops30h 45mMultiple Airlines
Deal found 12/8$1,464
Sun 14/907:10IAH - SYD
2 stops36h 25mMultiple Airlines
Sun 28/908:55SYD - IAH
2 stops34h 35mMultiple Airlines
Deal found 14/8$1,510
Mon 3/1111:37IAH - SYD
2 stops28h 08mMultiple Airlines
Sun 16/1113:55SYD - IAH
2 stops22h 57mMultiple Airlines
Deal found 13/8$1,514
Mon 10/1120:05IAH - SYD
1 stop19h 40mAir New Zealand
Sun 23/1111:45SYD - IAH
1 stop19h 20mAir New Zealand
Deal found 14/8$1,526
Mon 20/1020:10IAH - SYD
1 stop19h 55mAmerican Airlines
Sun 2/1111:15SYD - IAH
2 stops23h 02mAmerican Airlines
Deal found 13/8$1,533
Mon 3/1116:47IAH - SYD
1 stop21h 38mAmerican Airlines
Sun 16/1111:15SYD - IAH
2 stops21h 43mAmerican Airlines
Deal found 13/8$1,535
Mon 1/1216:47IAH - SYD
1 stop21h 38mAmerican Airlines
Sun 14/1217:45SYD - IAH
2 stops21h 11mAmerican Airlines
Deal found 13/8$1,537
Wed 12/1120:05IAH - SYD
1 stop19h 40mAir New Zealand
Wed 3/1213:55SYD - IAH
2 stops24h 28mAir New Zealand
Deal found 14/8$1,540
Mon 3/1114:20IAH - SYD
2 stops25h 25mAir New Zealand
Sun 16/1113:55SYD - IAH
2 stops27h 04mAir New Zealand
Deal found 14/8$1,544

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 15 August 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

Sun 7/9

07:10-22:10

2 stops48h 00m

Sydney Kingsford Smith

Tue 30/9

13:15-04:30

2 stops30h 15m

$1,371

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 12/11

20:05-08:45

1 stop19h 40m

Sydney Kingsford Smith

Wed 3/12

13:55-21:23

2 stops24h 28m

$1,540

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 16/9

21:55-10:35

1 stop21h 40m

Sydney Kingsford Smith

Tue 14/10

11:50-15:15

1 stop19h 25m

$1,586

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 1/10

07:10-11:45

2 stops37h 35m

Sydney Kingsford Smith

Mon 13/10

14:15-05:14

2 stops30h 59m

$1,610

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 5/11

16:20-08:45

2 stops23h 25m

Sydney Kingsford Smith

Thu 27/11

13:55-18:55

2 stops22h 00m

$1,642

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 6/10

22:05-08:45

2 stops42h 40m

Sydney Kingsford Smith

Sun 19/10

11:50-15:15

1 stop19h 25m

$1,662

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 19/1

16:30-08:45

2 stops23h 15m

Sydney Kingsford Smith

Sun 1/2

09:55-14:05

1 stop21h 10m

$1,665

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 2/2

14:30-08:45

2 stops25h 15m

Sydney Kingsford Smith

Sun 15/2

11:45-14:05

1 stop19h 20m

$1,665

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 7/10

16:25-08:45

2 stops24h 20m

Sydney Kingsford Smith

Mon 20/10

18:20-15:15

1 stop36h 55m

$1,673

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 25/10

06:05-06:55

2 stops32h 50m

$777

Flights are sorted by cheapest return flights first.

Deals found on 13/8

Showing 1-10 of 20 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 8 August 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 15 August 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.

What’s the top stopover airport for flights from Houston George Bush Intcntl Airport to Sydney?

Share of one-stop return flights from Houston George Bush Intcntl Airport to Sydney chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Los Angeles (LAX) – chosen by Cheapflights users on 25% of one-stop itineraries from Houston George Bush Intcntl Airport to Sydney on Cheapflights.

What’s the cheapest stopover airport for flights from Houston George Bush Intcntl Airport to Sydney?

Average return fare for one-stop flights from Houston George Bush Intcntl Airport to Sydney, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

San Francisco (SFO) is the most affordable one-stop option, with an average return flight price of $2,335.

What’s the fastest stopover option from Houston George Bush Intcntl Airport to Sydney?

Shortest average travel time for one-stop one-way flights from Houston George Bush Intcntl Airport to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Auckland (AKL) have the shortest average one-way travel time for one-stop routes: 19h 40m.

Which airport typically offers the quickest stopover for flights from Houston George Bush Intcntl Airport to Sydney?

Average stopover duration for one-stop one-way flights from Houston George Bush Intcntl Airport to Sydney, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Los Angeles (LAX) offer the fastest connection on this route, with an average stopover time of 1h 58m.

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.

  • 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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Yes! Cheapflights helps users easily find flights from George Bush Intcntl to Sydney with no change fees.

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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