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Cheap flights from Houston George Bush Intcntl Airport to Sydney from $673

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 15/8. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — SYD
30 Jul — 6 Aug1
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 June 2026.

Wed 12/816:02
IAH
-
SYD
2 stops39h 23m
Multiple Airlines
Wed 19/813:15
SYD
-
IAH
2 stops25h 41m
Multiple Airlines
Deal found 28/6$1,326
Sun 23/815:52
IAH
-
SYD
2 stops39h 33m
Multiple Airlines
Mon 7/913:15
SYD
-
IAH
3 stops37h 41m
Multiple Airlines
Deal found 29/6$1,544
Wed 29/716:02
IAH
-
SYD
2 stops28h 48m
Multiple Airlines
Wed 5/813:15
SYD
-
IAH
3 stops37h 12m
Multiple Airlines
Deal found 29/6$1,545
Sat 5/916:02
IAH
-
SYD
2 stops28h 48m
Multiple Airlines
Fri 11/906:15
SYD
-
IAH
3 stops43h 25m
Multiple Airlines
Deal found 26/6$1,638
Sat 19/921:55
IAH
-
SYD
2 stops46h 55m
Multiple Airlines
Wed 30/917:50
SYD
-
IAH
1 stop32h 36m
Multiple Airlines
Deal found 29/6$1,728
Mon 6/716:02
IAH
-
SYD
2 stops28h 48m
Multiple Airlines
Wed 29/713:15
SYD
-
IAH
2 stops25h 41m
Multiple Airlines
Deal found 29/6$1,746
Mon 10/816:02
IAH
-
SYD
2 stops28h 48m
Multiple Airlines
Sat 15/817:50
SYD
-
IAH
1 stop21h 06m
Multiple Airlines
Deal found 27/6$1,767

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 June 2026.

Round-trip from

$1,326

One-way from

$673

Popular in

July

Cheapest in

June

Average price

$1,445
12/8-19/8
  • 12/8-19/8
  • 4 total stops
  • 65h 04m total
  • Houston to Sydney
Search Deals
15/8
  • 15/8
  • 2 total stops
  • 28h 48m total
  • Houston to Sydney
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($23 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($102 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 June 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

Mon 19/10

14:56-07:55

1 stop24h 59m

Sydney Kingsford Smith

Wed 28/10

09:15-08:55

Nonstop15h 40m

$2,679

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 3/11

09:45-09:05

1 stop30h 20m

Sydney Kingsford Smith

Sun 15/11

09:15-07:55

Nonstop15h 40m

$2,679
Fastest return journey

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 11/11

20:25-07:00

Nonstop17h 35m

Sydney Kingsford Smith

Sat 28/11

09:20-08:00

Nonstop15h 40m

$2,744

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 19/11

20:25-07:00

Nonstop17h 35m

Sydney Kingsford Smith

Sun 29/11

09:15-07:55

Nonstop15h 40m

$2,745

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 19/11

20:25-07:00

Nonstop17h 35m

Sydney Kingsford Smith

Sat 28/11

09:20-08:00

Nonstop15h 40m

$2,816

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 19/11

17:20-09:20

1 stop23h 00m

Sydney Kingsford Smith

Thu 26/11

09:20-08:00

Nonstop15h 40m

$2,824

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 15/7

18:15-06:30

1 stop45h 15m

Sydney Kingsford Smith

Fri 14/8

14:50-15:55

1 stop40h 05m

$3,607

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 10/12

18:10-09:20

1 stop22h 10m

Sydney Kingsford Smith

Wed 16/12

09:15-07:55

Nonstop15h 40m

$3,696

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 21/11

15:05-07:25

3 stops47h 20m

Sydney Kingsford Smith

Sat 5/12

06:35-13:25

3 stops47h 50m

$3,890

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 19/10

15:20-07:30

3 stops48h 10m

Sydney Kingsford Smith

Wed 28/10

11:40-14:25

3 stops42h 45m

$3,951

Flights are sorted by cheapest return flights first.

Deals found on 29/6

Showing 1-10 of 21 resultsSorted by cheapest first
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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?

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, June is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Sydney (average of $1,445). Flying from Houston George Bush Intcntl Airport to Sydney in July is currently the most expensive (average of $2,853). 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 $2,679, United Airlines can have you in Sydney from Houston George Bush Intcntl Airport in 24h 59m. The distance from Houston George Bush Intcntl Airport to Sydney is about 13826 km.

  • 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, June is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Sydney (average of $1,445). Flying from Houston George Bush Intcntl Airport to Sydney in July is currently the most expensive (average of $2,853). 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

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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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