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$438+ 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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — SYD
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
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 March, booked 16 days in advance, depart on a Monday or Friday and return on a Sunday

Cheap 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 January 20, 2026.

This Vliegwinkel deal was found by Cheapflights users on 1/19. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/2610:51 am
IAH
-
SYD
1 stop29h 09m
Multiple Airlines
Sun 2/87:05 am
SYD
-
IAH
2 stops29h 18m
Multiple Airlines
Deal found 1/19$930
This Trip.com deal was found by Cheapflights users on 1/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/174:34 pm
IAH
-
SYD
2 stops36h 31m
Multiple Airlines
Fri 2/276:00 am
SYD
-
IAH
2 stops35h 30m
Multiple Airlines
Deal found 1/17$1,004
This Trip.com deal was found by Cheapflights users on 1/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/204:34 pm
IAH
-
SYD
2 stops27h 01m
Multiple Airlines
Sun 3/12:00 pm
SYD
-
IAH
2 stops27h 30m
Multiple Airlines
Deal found 1/19$1,015
This Trip.com deal was found by Cheapflights users on 1/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/134:34 pm
IAH
-
SYD
2 stops27h 01m
Multiple Airlines
Wed 3/112:00 pm
SYD
-
IAH
2 stops26h 30m
Multiple Airlines
Deal found 1/17$1,024
This Kiwi.com deal was found by Cheapflights users on 1/19. 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.
Thu 3/54:34 pm
IAH
-
SYD
1 stop21h 51m
Multiple Airlines
Mon 3/232:00 pm
SYD
-
IAH
2 stops43h 07m
Multiple Airlines
Deal found 1/19$1,083
This Kiwi.com deal was found by Cheapflights users on 1/18. 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 2/237:23 pm
IAH
-
SYD
1 stop43h 02m
Multiple Airlines
Sun 3/82:00 pm
SYD
-
IAH
2 stops43h 07m
Multiple Airlines
Deal found 1/18$1,084
This Kiwi.com deal was found by Cheapflights users on 1/18. 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.
Sun 2/227:23 pm
IAH
-
SYD
1 stop43h 02m
Multiple Airlines
Sun 3/82:00 pm
SYD
-
IAH
2 stops43h 07m
Multiple Airlines
Deal found 1/18$1,090
This Mytrip deal was found by Cheapflights users on 1/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1311:38 am
IAH
-
SYD
3 stops33h 07m
Multiple Airlines
Tue 5/191:15 pm
SYD
-
IAH
2 stops26h 42m
Multiple Airlines
Deal found 1/19$1,092
This Kiwi.com deal was found by Cheapflights users on 1/19. 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 4/204:49 pm
IAH
-
SYD
1 stop23h 41m
Multiple Airlines
Tue 5/51:15 pm
SYD
-
IAH
2 stops26h 42m
Multiple Airlines
Deal found 1/19$1,094
This Kiwi.com deal was found by Cheapflights users on 1/19. 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 4/204:49 pm
IAH
-
SYD
1 stop23h 41m
Multiple Airlines
Mon 5/41:15 pm
SYD
-
IAH
2 stops26h 42m
Multiple Airlines
Deal found 1/19$1,096

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 January 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$995
(Trip.com)

One-way from

$438
(Trip.com)

Popular in

December

Cheapest in

April

Average price

$1,678

Good round-trip deal

$1,574 or less

Good one-way deal

$1,010 or less
Provider with most accurate pricing for Houston George Bush Intcntl-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Houston George Bush Intcntl-Sydney Kingsford Smith flights.
Search Deals
From Houston George Bush Intcntl to Sydney Kingsford Smith
Search Deals
One-way flight from Houston George Bush Intcntl to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($301 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Houston George Bush Intcntl to Sydney Kingsford Smith.
Search Deals
Price to beat on a one-way flight from Houston George Bush Intcntl to Sydney Kingsford Smith.
Search Deals

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 January 20, 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

Wed 3/11

4:25 pm-10:30 am

2 stops26h 05m

Sydney Kingsford Smith

Tue 3/24

9:55 am-10:31 pm

2 stops28h 36m

$1,326

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 5/20

10:00 am-7:20 am

3 stops30h 20m

Sydney Kingsford Smith

Fri 5/29

9:20 am-10:51 pm

2 stops28h 31m

$1,415

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 3/4

8:25 pm-7:00 am

Nonstop17h 35m

Sydney Kingsford Smith

Tue 3/17

11:50 am-11:25 am

Nonstop15h 35m

$1,450

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 3/10

9:30 pm-7:00 am

Nonstop17h 30m

Sydney Kingsford Smith

Tue 3/24

11:50 am-11:25 am

Nonstop15h 35m

$1,450

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 2/24

8:25 pm-7:00 am

Nonstop17h 35m

Sydney Kingsford Smith

Wed 3/11

11:50 am-11:25 am

Nonstop15h 35m

$1,450

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 2/18

8:25 pm-7:00 am

Nonstop17h 35m

Sydney Kingsford Smith

Mon 3/9

11:50 am-11:25 am

Nonstop15h 35m

$1,450

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 3/11

6:02 pm-10:05 pm

2 stops36h 03m

$438

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 2/5

9:55 am-12:35 pm

2 stops33h 40m

$488

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 5/6

11:38 am-11:45 am

3 stops33h 07m

$509

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 2/24

4:34 pm-12:35 pm

2 stops27h 01m

$527

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Showing 1-10 of 13 results
1
2

Compare providers for flights from George Bush Intcntl to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from George Bush Intcntl to Sydney in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Houston George Bush Intcntl Airport-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Houston George Bush Intcntl Airport-Sydney flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Houston George Bush Intcntl Airport-Sydney flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Houston George Bush Intcntl Airport-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 January 16, 2026.

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 16 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, May is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Sydney (average of $414). Flying from Houston George Bush Intcntl Airport to Sydney in December is currently the most expensive (average of $854). 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 January 20, 2026.

When flying from Houston George Bush Intcntl Airport to Sydney, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

The best insider tips for Houston George Bush Intcntl Airport to Sydney flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston George Bush Intcntl Airport to Sydney trip
Our travel experts
Evie Carrick

Evie Carrick

Expert on IAH

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

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

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 January 20, 2026.
Get a feel of what it's like to fly with Fiji Airways, Air New Zealand, and Qantas Airways 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.
Fiji Airways
8.0
Very good
217 reviews

Boarding

8.1

Crew

8.4

Comfort

8.0

Food

7.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Fiji Airways
8.0
Very good
217 reviews
Fiji Airways
8.0
Very good
217 reviews

Boarding

8.1

Crew

8.4

Comfort

8.0

Food

7.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Air New Zealand
8.0
Very good
572 reviews
Fiji Airways
8.0
Very good
217 reviews

Boarding

8.1

Crew

8.4

Comfort

8.0

Food

7.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Qantas Airways
7.5
Good
973 reviews
Fiji Airways
8.0
Very good
217 reviews

Boarding

8.1

Crew

8.4

Comfort

8.0

Food

7.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
United Airlines
7.4
Good
9,184 reviews
Fiji Airways
8.0
Very good
217 reviews

Boarding

8.1

Crew

8.4

Comfort

8.0

Food

7.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
American Airlines
7.2
Good
11,166 reviews
Fiji Airways
8.0
Very good
217 reviews

Boarding

8.1

Crew

8.4

Comfort

8.0

Food

7.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.

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 3 inbound flights from Houston George Bush Intcntl per day.

  • How long is the flight from Houston George Bush Intcntl Airport to Sydney?

    For as low as $1,450, Air New Zealand can have you in Sydney from Houston George Bush Intcntl Airport in 17h 35m. Airlines will cover a distance of 8591 mi. This flight may include one or multiple stops.

  • 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 $337. Other airlines that can offer you cheap pricing are Qantas Airways, from $799, and American Airlines, from $820. These flights start at 73% 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 $390 on Qantas Airways. Other airlines that offer cheap prices include American Airlines from $401 and United Airlines from $846 one-way.

  • What are the most reliable airlines from Houston George Bush Intcntl Airport to Sydney?

    Before booking your flight to Sydney from Houston George Bush Intcntl Airport, check out the most reliable airlines to get you to your destination on time: Virgin Australia (72%), United Airlines (72%), Lufthansa( 72%).

  • 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 $1,710, our data shows the cheapest flight currently is $1,003. When looking at the most popular route, (Houston George Bush Intcntl - Sydney Kingsford Smith), you can expect to pay $864 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 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, May is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Sydney (average of $414). Flying from Houston George Bush Intcntl Airport to Sydney in December is currently the most expensive (average of $854). 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?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Manly

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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 January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$337Average$963FlexibilityNo cancel feeOn-timeN/A
Qantas AirwaysCheapest$799Average$923FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$820Average$849FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$876Average$1,781FlexibilityNo cancel feeOn-time69%
Air New ZealandCheapest$957Average$1,374FlexibilityNo cancel feeOn-time78%
Fiji AirwaysCheapest$983Average$1,161FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$1,037Average$1,331FlexibilityNo cancel feeOn-time67%

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