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Cheap flights from Houston George Bush Intcntl Airport to Sydney from $662

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 29/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — SYD
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from Houston George Bush Intcntl to Sydney Kingsford Smith are usually found in May or April, booked 37 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap 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 June 2025.

Round-trip from

$1,623

One-way from

$662

Popular in

December

Cheapest in

May

Average price

$1,640
24/10-4/11
  • 24/10-4/11
  • 4 total stops
  • 69h 54m total
  • Houston to Sydney
Search Deals
Delta
  • Delta
  • 29/11
  • 2 total stops
  • 31h 45m total
  • Houston to Sydney
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($613 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($109 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
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Find flight deals from George Bush Intcntl to Sydney

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 June 2025.

Fri 24/1005:45IAH - SYD
2 stops34h 35mMultiple Airlines
Tue 4/1106:00SYD - IAH
2 stops35h 19mMultiple Airlines
Deal found 10/6$1,623
Wed 30/721:55IAH - SYD
1 stop19h 50mAir New Zealand
Sat 9/818:20SYD - IAH
1 stop36h 55mAir New Zealand
Deal found 10/6$1,650
Wed 8/1016:00IAH - SYD
1 stop23h 35mDelta
Mon 20/1010:25SYD - IAH
1 stop29h 05mDelta
Deal found 12/6$1,652
Sat 16/818:50IAH - SYD
2 stops25h 55mFiji Airways
Sat 30/813:45SYD - IAH
2 stops21h 21mFiji Airways
Deal found 9/6$1,661
Wed 24/910:00IAH - SYD
3 stops54h 20mAir Canada
Thu 2/1009:20SYD - IAH
2 stops43h 11mAir Canada
Deal found 11/6$1,690

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 June 2025.
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

Fri 24/10

05:45-08:20

2 stops34h 35m

Sydney Kingsford Smith

Tue 4/11

06:00-00:19

2 stops35h 19m

$1,623

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 30/7

21:55-08:45

1 stop19h 50m

Sydney Kingsford Smith

Sat 9/8

18:20-16:15

1 stop36h 55m

$1,650

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 8/10

16:00-07:35

1 stop23h 35m

Sydney Kingsford Smith

Mon 20/10

10:25-23:30

1 stop29h 05m

$1,652

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 16/8

18:50-11:45

2 stops25h 55m

Sydney Kingsford Smith

Sat 30/8

13:45-20:06

2 stops21h 21m

$1,661

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 24/9

10:00-07:20

3 stops54h 20m

Sydney Kingsford Smith

Thu 2/10

09:20-13:31

2 stops43h 11m

$1,690

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 3/7

06:22-06:35

2 stops33h 13m

$680

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 2/7

11:56-07:30

1 stop28h 34m

$830

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 1/7

19:55-07:05

1 stop20h 10m

$1,481

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 1/7

18:11-11:45

2 stops26h 34m

$1,534

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 1/7

19:55-15:10

3 stops28h 15m

$2,123

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 11 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 9 June 2025.

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 37 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 $129). Flying from Houston George Bush Intcntl Airport to Sydney in October is currently the most expensive (average of $171). 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 13 June 2025.

It’s typically best to fly out from Houston George Bush Intcntl Airport to Sydney in the morning. Doing so could potentially save you 51% on the flight price compared to flying at midday, which is usually more expensive.

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sydney ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated 13 June 2025.
Peruse reviews from past customers who have flown with Air Tahiti Nui, Fiji Airways and Delta from Houston to Sydney to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Food

7.8

Boarding

8.7

Crew

9.0

Entertainment

7.3

Comfort

8.1

Overall

8.7

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air Tahiti Nui
8.7
Very Good
64 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Food

7.8

Boarding

8.7

Crew

9.0

Entertainment

7.3

Comfort

8.1

Overall

8.7

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Fiji Airways
8.1
Very Good
194 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Food

7.8

Boarding

8.7

Crew

9.0

Entertainment

7.3

Comfort

8.1

Overall

8.7

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Delta
8.0
Very Good
7,950 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Food

7.8

Boarding

8.7

Crew

9.0

Entertainment

7.3

Comfort

8.1

Overall

8.7

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air New Zealand
8.0
Very Good
483 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Food

7.8

Boarding

8.7

Crew

9.0

Entertainment

7.3

Comfort

8.1

Overall

8.7

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Qantas Airways
7.5
Good
854 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Food

7.8

Boarding

8.7

Crew

9.0

Entertainment

7.3

Comfort

8.1

Overall

8.7

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

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.

  • What are the cheapest airlines flying from Houston George Bush Intcntl Airport to Sydney round-trip?

    Cheapflights users have booked flights from Houston George Bush Intcntl Airport to Sydney round-trip from $1,650. Other airlines that can offer you cheap pricing are Delta, from $1,652, and Fiji Airways, from $1,661. Air New Zealand is 12% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Houston George Bush Intcntl Airport to Sydney one-way?

    The cheapet airlines for a one-way flight from Houston George Bush Intcntl Airport to Sydney are Delta ($662), Qantas Airways ($1,150), and United Airlines ($1,276).

  • 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 $129). Flying from Houston George Bush Intcntl Airport to Sydney in October is currently the most expensive (average of $171). 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 Houston George Bush Intcntl Airport?

Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locations
Parramatta
Wollongong
Katoomba
Manly
Penrith
Coogee
Randwick
Cronulla
Terrigal
Lithgow
Bondi Beach
Leura
Swansea

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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.
Hobby to Sydney flights
George Bush Intcntl to Coolangatta flights

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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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