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$502+ Cheap flights from George Bush Intcntl (IAH) to Sydney (SYD)

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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — SYD
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
1 adult, Economy
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Cheapflights Tip: The best prices from Houston George Bush Intcntl to Sydney Kingsford Smith are usually found in April or May, booked 15 days in advance, depart on a Monday or Wednesday and return on a Thursday

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 July 28, 2025.

Round-trip from

$989
(Air Canada)

One-way from

$502
(Trip.com)

Popular in

December

Cheapest in

April

Average price

$1,391

Good round-trip deal

$1,446 or less

Good one-way deal

$1,002 or less
From Houston George Bush Intcntl to Sydney Kingsford Smith
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One-way flight from Houston George Bush Intcntl to Sydney Kingsford Smith
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Highest demand for flights based on searches. 17% potential increase in price ($258 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Houston George Bush Intcntl to Sydney Kingsford Smith.
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Price to beat on a one-way flight from Houston George Bush Intcntl to Sydney Kingsford Smith.
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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 July 28, 2025.

This Air Canada deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1910:00 amIAH - SYD
2 stops30h 20mAir Canada
Wed 8/279:20 amSYD - IAH
2 stops43h 11mAir Canada
Deal found 7/28$989
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/610:02 pmIAH - SYD
1 stop41h 28mMultiple Airlines
Sun 10/195:20 pmSYD - IAH
2 stops40h 50mMultiple Airlines
Deal found 7/28$1,045
This oojo deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:23 pmIAH - SYD
2 stops26h 22mFiji Airways
Sat 11/82:30 pmSYD - IAH
2 stops23h 02mFiji Airways
Deal found 7/26$1,060
This oojo deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/138:10 pmIAH - SYD
2 stops44h 50mPhilippine Airlines
Sun 10/2611:35 amSYD - IAH
2 stops47h 47mPhilippine Airlines
Deal found 7/28$1,118

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated July 28, 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

Tue 8/19

10:00 am-7:20 am

2 stops30h 20m

Sydney Kingsford Smith

Wed 8/27

9:20 am-1:31 pm

2 stops43h 11m

$989

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 10/6

10:02 pm-7:30 am

1 stop41h 28m

Sydney Kingsford Smith

Sun 10/19

5:20 pm-6:10 pm

2 stops40h 50m

$1,045

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 8/16

6:50 pm-11:45 am

2 stops25h 55m

Sydney Kingsford Smith

Sat 8/30

1:45 pm-8:06 pm

2 stops21h 21m

$1,111

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 10/13

8:10 pm-9:00 am

2 stops44h 50m

Sydney Kingsford Smith

Sun 10/26

11:35 am-7:22 pm

2 stops47h 47m

$1,118

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 9/23

10:30 am-7:05 am

2 stops29h 35m

$502

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 10/25

6:23 pm-12:45 pm

2 stops26h 22m

$555

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 9/15

4:32 pm-7:20 am

2 stops47h 48m

$635

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Fri 8/1

7:10 pm-7:45 pm

2 stops33h 35m

$897

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 9/18

8:12 pm-7:05 am

1 stop19h 53m

$903

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 8/24

9:55 pm-8:45 am

1 stop19h 50m

$910

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 11 results
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The best insider tips for Houston George Bush Intcntl Airport to Sydney flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston George Bush Intcntl Airport to Sydney trip
Airports
IAH

Check security wait times on the IAH website to plan your arrival at the airport efficiently.

Read more about IAHby Evie Carrick
SYD

Use the T8 Airport Line for a quick 15-25 minute ride to central Sydney after clearing customs.

Read more about SYDby John Walton
Our travel experts
Evie Carrick

Evie Carrick

Expert on IAH

Evie Carrick

Evie Carrick

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more
John Walton

John Walton

Expert on SYD

John Walton

John Walton

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more

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 round-trip 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 round-trip flight from George Bush Intcntl to Sydney. Price data was last updated on July 25, 2025.

To ensure you get the cheapest price possible for a flight from Houston George Bush Intcntl Airport to Sydney, you should look to book at least 15 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Sydney?

Currently, February is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Sydney (average of $1,028). Flying from Houston George Bush Intcntl Airport to Sydney in December is currently the most expensive (average of $1,619). 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 July 28, 2025.

One of the essential ways to save on airfare from Houston George Bush Intcntl Airport to Sydney is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 49% on airfare.

What is the cheapest day to fly from Houston George Bush Intcntl Airport to Sydney?

Use this chart to determine the cheapest time to fly round-trip from George Bush Intcntl to Sydney. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Houston George Bush Intcntl Airport to Sydney flight should consider departing on Sunday at noon when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Houston George Bush Intcntl Airport to Sydney?

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 July 28, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Fiji Airways, and Air New Zealand from Houston George Bush Intcntl Airport to Sydney by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Fiji Airways
8.0
Very good
202 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Air New Zealand
8.0
Very good
502 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,892 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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?

    Sydney Kingsford Smith (SYD), located 4.6 mi from the city center, is the airport you fly into when you book flights from Houston George Bush Intcntl to Sydney. 7 airlines have flights to Kingsford Smith from Houston George Bush Intcntl on a regular basis. Booking flights from Houston George Bush Intcntl to Sydney Kingsford Smith should not be difficult; the airport handles an average of 0 inbound flights from Houston George Bush Intcntl per day.

  • 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 $989. Other airlines that can offer you cheap pricing are Fiji Airways, from $1,111, and Philippine Airlines, from $1,118. These flights start at 19% lower than the current average price 3 months from now.

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

    One-way options have recently been found by users for as low as $555 on Fiji Airways. Other airlines that offer cheap prices include Air Canada from $635 and Alaska Airlines from $897 one-way.

  • 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 $1,662, our data shows the cheapest flight currently is $1,002. When looking at the most popular route, (Houston George Bush Intcntl - Sydney Kingsford Smith), you can expect to pay $1,046 for that flight.

  • Where are the most common layover locations when flying from Houston George Bush Intcntl Airport to Sydney?

    Houston George Bush Intcntl Airport to Sydney flights have a layover in Los Angeles most often.

  • What are some popular things to do or see while on a layover in Los Angeles?

    Most Los Angeles visitors opt to spend their time experiencing Hollywood Bowl, Hollywood Walk of Fame, and L.A. Live. Travelers on a layover in Los Angeles can visit Hollywood Bowl, Hollywood Walk of Fame, and L.A. Live, by traveling 12.5 mi, 11.7 mi, and 10.8 mi, respectively after landing at Los Angeles. Travelers can book a car rental at Los Angeles for about $51 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Houston George Bush Intcntl Airport to Sydney flights?

    Houston George Bush Intcntl Airport to Sydney flights have a layover in Auckland the least frequently.

  • 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 vacation 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, February is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Sydney (average of $1,028). Flying from Houston George Bush Intcntl Airport to Sydney in December is currently the most expensive (average of $1,619). 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

Traveling to a place near Sydney?

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Parramatta
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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
Hobby to Coolangatta flights
George Bush Intcntl to Coolangatta flights

Top 7 airlines flying from George Bush Intcntl to Sydney

Discover the top 7 airlines that operate flights from George Bush Intcntl to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$799Average$964FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$829Average$868FlexibilityNo cancel feeOn-time71%
DeltaCheapest$830Average$979FlexibilityNo cancel feeOn-timeN/A
Air New ZealandCheapest$957Average$1,403FlexibilityNo cancel feeOn-time78%
Air CanadaCheapest$972Average$1,273FlexibilityNo cancel feeOn-time67%
Fiji AirwaysCheapest$995Average$1,189FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$1,189Average$1,609FlexibilityNo cancel feeOn-time69%

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