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Cheap flights from Houston George Bush Intcntl Airport to Sydney from $644

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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — SYD
29 Apr — 6 May1
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 30 March 2026.

Sun 26/414:36
IAH
-
SYD
2 stops30h 14m
Multiple Airlines
Mon 11/513:15
SYD
-
IAH
2 stops27h 10m
Multiple Airlines
Deal found 29/3$1,168
Mon 11/516:21
IAH
-
SYD
2 stops28h 44m
Multiple Airlines
Wed 20/513:20
SYD
-
IAH
2 stops27h 05m
Multiple Airlines
Deal found 25/3$1,319
Tue 26/506:00
IAH
-
SYD
2 stops38h 50m
Multiple Airlines
Thu 4/613:15
SYD
-
IAH
2 stops27h 10m
Multiple Airlines
Deal found 28/3$1,327
Tue 26/516:21
IAH
-
SYD
2 stops28h 29m
Multiple Airlines
Wed 3/613:20
SYD
-
IAH
2 stops27h 05m
Multiple Airlines
Deal found 25/3$1,343
Mon 27/410:31
IAH
-
SYD
2 stops44h 39m
Multiple Airlines
Mon 4/506:00
SYD
-
IAH
3 stops45h 33m
Multiple Airlines
Deal found 30/3$1,367
Tue 14/409:33
IAH
-
SYD
2 stops45h 37m
Multiple Airlines
Tue 21/413:15
SYD
-
IAH
3 stops40h 22m
Multiple Airlines
Deal found 28/3$1,388
Mon 11/516:21
IAH
-
SYD
2 stops28h 44m
Multiple Airlines
Mon 25/506:00
SYD
-
IAH
2 stops34h 25m
Multiple Airlines
Deal found 25/3$1,395

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 30 March 2026.

Round-trip from

$1,168

One-way from

$644

Popular in

December

Cheapest in

October

Average price

$2,220
26/4-11/5
  • 26/4-11/5
  • 4 total stops
  • 57h 24m total
  • Houston to Sydney
Search Deals
2/5
  • 2/5
  • 2 total stops
  • 46h 35m total
  • Houston to Sydney
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($394 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($62 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 30 March 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

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 4/8

18:19-18:50

2 stops33h 31m

Sydney Kingsford Smith

Tue 18/8

20:45-16:52

2 stops35h 07m

$2,145

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 13/4

14:30-19:10

2 stops37h 40m

Sydney Kingsford Smith

Sun 17/5

21:05-19:10

2 stops37h 05m

$2,256

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 14/5

17:57-18:50

2 stops33h 53m

Sydney Kingsford Smith

Thu 28/5

20:45-16:57

2 stops35h 12m

$2,284

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 5/8

18:19-18:50

2 stops33h 31m

Sydney Kingsford Smith

Fri 21/8

20:45-16:52

2 stops35h 07m

$2,289

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 11/5

14:30-19:10

2 stops37h 40m

Sydney Kingsford Smith

Thu 21/5

21:05-19:10

2 stops37h 05m

$2,333

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 3/8

10:49-06:50

2 stops29h 01m

Sydney Kingsford Smith

Wed 19/8

09:15-17:47

2 stops23h 32m

$2,490
Fastest return journey

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Fri 22/5

20:15-07:00

1 stop19h 45m

Sydney Kingsford Smith

Mon 1/6

09:30-13:40

1 stop19h 10m

$2,554

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 4/6

20:15-07:00

1 stop19h 45m

Sydney Kingsford Smith

Wed 17/6

09:30-13:40

1 stop19h 10m

$2,554

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 30/5

22:03-07:00

1 stop41h 57m

Sydney Kingsford Smith

Fri 12/6

09:30-13:40

1 stop19h 10m

$2,572

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 9/5

22:02-07:00

1 stop41h 58m

Sydney Kingsford Smith

Thu 21/5

09:30-13:40

1 stop19h 10m

$2,791

Flights are sorted by cheapest return flights first.

Deals found on 29/3

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 13 March 2026.

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 $289). Flying from Houston George Bush Intcntl Airport to Sydney in April is currently the most expensive (average of $1,680). 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 30 March 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Houston George Bush Intcntl Airport to Sydney as you normally would.

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 $2,256, Turkish Airlines can have you in Sydney from Houston George Bush Intcntl Airport in 37h 40m. The distance from Houston George Bush Intcntl Airport to Sydney is about 13826 km.

  • What are the most reliable airlines from Houston George Bush Intcntl Airport to Sydney?

    No one likes to see their flight delayed. When booking a flight from Houston George Bush Intcntl Airport to Sydney consider choosing Virgin Australia(86%), United Airlines(86%) or Lufthansa(86%), as they are the most reliable in getting you off to your destination on time.

  • 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 $289). Flying from Houston George Bush Intcntl Airport to Sydney in April is currently the most expensive (average of $1,680). 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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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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