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Cheap flights from Houston George Bush Intcntl Airport to Sydney from $612

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — SYD
16 Mar — 23 Mar1
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 14 February 2026.

Tue 28/409:33
IAH
-
SYD
1 stop30h 57m
Multiple Airlines
Mon 11/513:15
SYD
-
IAH
2 stops43h 47m
Multiple Airlines
Deal found 10/2$1,229
Wed 29/409:33
IAH
-
SYD
1 stop30h 57m
Multiple Airlines
Tue 12/513:15
SYD
-
IAH
2 stops43h 47m
Multiple Airlines
Deal found 10/2$1,246
Wed 29/409:33
IAH
-
SYD
1 stop30h 57m
Multiple Airlines
Fri 15/513:15
SYD
-
IAH
2 stops43h 47m
Multiple Airlines
Deal found 10/2$1,263
Tue 28/409:33
IAH
-
SYD
1 stop30h 57m
Multiple Airlines
Wed 13/513:20
SYD
-
IAH
2 stops26h 37m
Multiple Airlines
Deal found 10/2$1,270
Sat 2/509:33
IAH
-
SYD
1 stop30h 57m
Multiple Airlines
Wed 13/513:20
SYD
-
IAH
2 stops43h 42m
Multiple Airlines
Deal found 10/2$1,280
Wed 29/409:33
IAH
-
SYD
1 stop30h 57m
Multiple Airlines
Wed 13/513:20
SYD
-
IAH
2 stops26h 37m
Multiple Airlines
Deal found 10/2$1,287
Tue 28/409:33
IAH
-
SYD
1 stop30h 57m
Multiple Airlines
Thu 14/513:15
SYD
-
IAH
2 stops26h 42m
Multiple Airlines
Deal found 10/2$1,295
Wed 29/409:33
IAH
-
SYD
1 stop30h 57m
Multiple Airlines
Thu 14/513:15
SYD
-
IAH
2 stops26h 42m
Multiple Airlines
Deal found 10/2$1,312
Mon 27/409:33
IAH
-
SYD
1 stop30h 57m
Multiple Airlines
Wed 13/513:20
SYD
-
IAH
2 stops26h 37m
Multiple Airlines
Deal found 10/2$1,339
Mon 27/409:33
IAH
-
SYD
1 stop30h 57m
Multiple Airlines
Thu 14/513:15
SYD
-
IAH
2 stops26h 42m
Multiple Airlines
Deal found 10/2$1,364
Sun 26/409:33
IAH
-
SYD
1 stop30h 57m
Multiple Airlines
Sat 16/513:15
SYD
-
IAH
2 stops26h 42m
Multiple Airlines
Deal found 10/2$1,374
Sun 22/216:34
IAH
-
SYD
2 stops27h 01m
Multiple Airlines
Sun 8/314:00
SYD
-
IAH
2 stops26h 30m
Multiple Airlines
Deal found 13/2$1,381

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 14 February 2026.

Round-trip from

$1,229

One-way from

$612

Popular in

December

Cheapest in

October

Average price

$2,044

Good one-way deal

$773 or less
28/4-12/5
  • 28/4-12/5
  • 3 total stops
  • 74h 44m total
  • Houston to Sydney
Search Deals
20/4
  • 20/4
  • 2 total stops
  • 35h 32m total
  • Houston to Sydney
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($515 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($72 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a one-way flight from Houston George Bush Intcntl to Sydney Kingsford Smith.
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 14 February 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

George Bush Intcntl

Fly to

Sydney

Route

Depart

Return

Price

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 11/4

21:55-08:45

1 stop19h 50m

Sydney Kingsford Smith

Sat 25/4

19:20-16:25

1 stop36h 05m

$1,527

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 14/5

21:55-10:40

1 stop21h 45m

Sydney Kingsford Smith

Thu 28/5

11:55-23:18

2 stops26h 23m

$1,602

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 6/5

16:23-08:45

2 stops25h 22m

Sydney Kingsford Smith

Sat 16/5

11:55-16:25

1 stop19h 30m

$1,639

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 20/5

21:55-08:45

1 stop19h 50m

Sydney Kingsford Smith

Fri 29/5

11:55-23:18

2 stops26h 23m

$1,647

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Fri 1/5

21:55-10:40

1 stop21h 45m

Sydney Kingsford Smith

Sat 9/5

09:55-16:25

1 stop21h 30m

$1,702

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 2/5

21:55-08:45

1 stop19h 50m

Sydney Kingsford Smith

Sat 16/5

09:55-16:25

1 stop21h 30m

$1,702

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 28/5

21:55-10:40

1 stop21h 45m

Sydney Kingsford Smith

Fri 12/6

11:55-16:25

1 stop19h 30m

$1,702

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 28/3

16:04-08:05

1 stop24h 01m

Sydney Kingsford Smith

Sat 11/4

09:10-23:54

1 stop29h 44m

$1,856

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 20/4

09:33-12:05

2 stops35h 32m

$612

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 30/3

16:04-22:25

2 stops38h 21m

$626

Flights are sorted by cheapest return flights first.

Deals found on 12/2

Showing 1-10 of 16 results
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?

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 6 February 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 $281). Flying from Houston George Bush Intcntl Airport to Sydney in February is currently the most expensive (average of $1,255). 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 14 February 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 3 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 $1,527, Air New Zealand can have you in Sydney from Houston George Bush Intcntl Airport in 19h 50m. 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(83%), United Airlines(83%) or Lufthansa(83%), as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Houston George Bush Intcntl Airport to Sydney?

    While on average a flight from Houston George Bush Intcntl Airport to Sydney is generally $773, our data shows the cheapest flight currently is $773. When looking at the most popular route, (Houston George Bush Intcntl - Sydney Kingsford Smith), you can expect to pay $1,199 for that flight.

  • 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 $281). Flying from Houston George Bush Intcntl Airport to Sydney in February is currently the most expensive (average of $1,255). 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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