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Cheap flights from Houston George Bush Intcntl Airport to Sydney from $748

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 15/6. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — SYD
12 Jun — 19 Jun1
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 13 May 2026.

Wed 29/716:14
IAH
-
SYD
1 stop23h 36m
Delta
Wed 5/809:15
SYD
-
IAH
1 stop20h 54m
Delta
Deal found 8/5$1,397
Sun 26/716:14
IAH
-
SYD
1 stop23h 36m
Delta
Wed 5/809:15
SYD
-
IAH
1 stop20h 54m
Delta
Deal found 8/5$1,398
Sat 1/814:20
IAH
-
SYD
2 stops49h 30m
Delta
Wed 5/809:15
SYD
-
IAH
1 stop20h 54m
Delta
Deal found 7/5$1,423
Thu 30/716:14
IAH
-
SYD
1 stop23h 36m
Delta
Sun 2/809:15
SYD
-
IAH
1 stop20h 49m
Delta
Deal found 7/5$1,466
Sun 17/516:08
IAH
-
SYD
1 stop23h 42m
Delta
Sat 23/509:15
SYD
-
IAH
1 stop20h 58m
Delta
Deal found 8/5$1,468
Thu 30/714:38
IAH
-
SYD
2 stops25h 12m
Delta
Tue 4/809:15
SYD
-
IAH
2 stops23h 47m
Delta
Deal found 7/5$1,473
Sat 1/807:25
IAH
-
SYD
1 stop32h 25m
Delta
Tue 4/809:15
SYD
-
IAH
1 stop20h 54m
Delta
Deal found 7/5$1,479
Thu 30/716:14
IAH
-
SYD
1 stop23h 36m
Delta
Sat 8/809:15
SYD
-
IAH
1 stop20h 54m
Delta
Deal found 7/5$1,535
Thu 14/516:08
IAH
-
SYD
1 stop23h 42m
Delta
Thu 28/509:15
SYD
-
IAH
1 stop20h 58m
Delta
Deal found 8/5$1,537

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 13 May 2026.

Round-trip from

$1,397

One-way from

$748

Popular in

December

Cheapest in

November

Average price

$2,173
Delta
  • Delta
  • 29/7-5/8
  • 2 total stops
  • 44h 30m total
  • Houston to Sydney
Search Deals
Delta
  • Delta
  • 3/6
  • 2 total stops
  • 28h 16m total
  • Houston to Sydney
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($91 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($55 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 13 May 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

Sun 26/7

14:21-06:50

2 stops25h 29m

Sydney Kingsford Smith

Mon 3/8

09:15-15:09

1 stop20h 54m

$1,404

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 23/9

11:30-06:50

2 stops28h 20m

Sydney Kingsford Smith

Wed 7/10

10:15-18:59

2 stops24h 44m

$1,404

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Fri 22/5

16:08-06:50

1 stop23h 42m

Sydney Kingsford Smith

Sat 30/5

09:15-15:13

1 stop20h 58m

$1,535

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 27/7

14:35-06:50

2 stops25h 15m

Sydney Kingsford Smith

Wed 12/8

09:15-17:40

2 stops23h 25m

$2,580

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 9/9

16:31-06:55

2 stops23h 24m

Sydney Kingsford Smith

Wed 6/1

11:20-20:24

2 stops26h 04m

$2,581
Fastest return journey

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 29/10

16:30-08:05

1 stop23h 35m

Sydney Kingsford Smith

Tue 10/11

11:50-10:25

Nonstop15h 35m

$2,629

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Fri 9/10

11:50-07:50

2 stops28h 00m

Sydney Kingsford Smith

Sat 24/10

10:15-23:58

2 stops29h 43m

$2,719

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 22/6

18:38-07:00

1 stop21h 22m

Sydney Kingsford Smith

Sun 5/7

10:20-15:07

1 stop19h 47m

$2,777

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 19/10

15:55-07:25

2 stops47h 30m

Sydney Kingsford Smith

Wed 28/10

11:40-14:25

3 stops42h 45m

$3,675

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 25/8

15:25-06:30

3 stops48h 05m

Sydney Kingsford Smith

Tue 1/9

10:10-13:15

3 stops42h 05m

$3,724

Flights are sorted by cheapest return flights first.

Deals found on 7/5

Showing 1-10 of 20 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 15 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 $1,520). Flying from Houston George Bush Intcntl Airport to Sydney in December is currently the most expensive (average of $2,415). 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?

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 $2,581, Delta can have you in Sydney from Houston George Bush Intcntl Airport in 23h 24m. 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.

  • 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(79%), United Airlines(79%) or Lufthansa(79%), 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, November is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Sydney (average of $1,520). Flying from Houston George Bush Intcntl Airport to Sydney in December is currently the most expensive (average of $2,415). 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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