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Cheap flights from Houston George Bush Intcntl Airport to Sydney from $856

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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — SYD
11 Sep — 18 Sep1
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
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 12 August 2026.

Mon 19/1021:59 -
1 stop41h 31m
Mon 26/1014:00 -
2 stops37h 26m
Deal found 11/8$1,502
Mon 19/1022:59 -
1 stop40h 31m
Mon 2/1114:00 -
2 stops38h 26m
Deal found 11/8$1,504
Tue 10/1119:48 -
1 stop41h 37m
Tue 17/1114:00 -
2 stops38h 26m
Deal found 7/8$1,520
Sun 18/1021:59 -
1 stop41h 31m
Wed 28/1014:00 -
2 stops37h 26m
Deal found 11/8$1,533
Wed 23/907:00 -
3 stops48h 25m
Wed 30/913:15 -
3 stops37h 08m
Deal found 7/8$1,561
Tue 3/1119:48 -
1 stop41h 37m
Fri 20/1114:00 -
2 stops32h 11m
Deal found 11/8$1,609
Tue 3/1119:48 -
1 stop41h 37m
Tue 17/1114:00 -
2 stops38h 26m
Deal found 8/8$1,640
Thu 5/1121:15 -
1 stop40h 10m
Fri 20/1114:00 -
2 stops32h 11m
Deal found 11/8$1,647

Find 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 12 August 2026.

Round-trip from

$1,520

One-way from

$816

Popular in

December

Cheapest in

November

Average price

$2,261
10/11-17/11
  • 10/11-17/11
  • 3 total stops
  • 80h 03m total
  • Houston to Sydney
Search Deals
14/11
  • 14/11
  • 3 total stops
  • 44h 45m total
  • Houston to Sydney
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($66 potential savings vs. average return price).
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Average for round-trip flights in August 2026
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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 12 August 2026.
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

Cheapest return flight
Fastest return journey

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 16/11

20:25-07:00

Nonstop17h 35m

Sydney Kingsford Smith

Sun 29/11

09:15-07:55

Nonstop15h 40m

$2,612

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Tue 3/11

20:25-07:00

Nonstop17h 35m

Sydney Kingsford Smith

Tue 17/11

09:20-08:00

Nonstop15h 40m

$2,612

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 1/2

12:28-09:20

1 stop27h 52m

Sydney Kingsford Smith

Wed 10/2

09:15-07:55

Nonstop15h 40m

$2,618

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Thu 19/11

19:20-09:20

1 stop21h 00m

Sydney Kingsford Smith

Tue 1/12

09:20-08:00

Nonstop15h 40m

$2,689

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Wed 11/11

18:35-09:20

1 stop21h 45m

Sydney Kingsford Smith

Fri 27/11

09:15-07:55

Nonstop15h 40m

$2,689

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Wed 11/11

14:42-09:05

1 stop25h 23m

Sydney Kingsford Smith

Sat 28/11

09:20-08:00

Nonstop15h 40m

$2,689

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Sat 24/10

21:25-07:00

Nonstop17h 35m

Sydney Kingsford Smith

Fri 20/11

09:15-07:55

Nonstop15h 40m

$2,752

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Thu 29/10

21:25-07:00

Nonstop17h 35m

Sydney Kingsford Smith

Thu 5/11

09:20-08:00

Nonstop15h 40m

$2,754

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Fri 11/12

16:30-09:05

1 stop23h 35m

Sydney Kingsford Smith

Thu 7/1

11:50-20:50

2 stops26h 00m

$2,761
Cheapest one-way

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Fri 30/10

21:15-20:50

3 stops55h 35m

$935

Flights are sorted by cheapest return flights first.

Deals found on 8/8

Showing 1-10 of 19 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
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?

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 $1,446). Flying from Houston George Bush Intcntl Airport to Sydney in December is currently the most expensive (average of $2,615). 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 $2,155 and $2,293 in October.
The cheapest return price found within the last 5 days was $1,502 on Multiple Airlines (19 Oct–26 Oct).

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, November is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Sydney (average of $1,446). Flying from Houston George Bush Intcntl Airport to Sydney in December is currently the most expensive (average of $2,615). 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

Travelling to a place near Sydney?

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Bondi Beach
Coogee

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Alternative routes for George Bush Intcntl to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from George Bush Intcntl to Sydney?

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Why should you use Cheapflights to find cheap flight tickets from George Bush Intcntl to Sydney?

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Can Cheapflights find flights from George Bush Intcntl to Sydney with no change fees?

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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