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$402+ 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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — SYD
Apr 20 — Apr 271
Mon 4/20
Mon 4/27
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 October or August, booked 16 days in advance, depart on a Monday or Sunday and return on a Monday

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 March 21, 2026.

This American Airlines deal was found by Cheapflights users on 3/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:41 pm
IAH
-
SYD
1 stop20h 24m
American Airlines
Tue 5/59:10 am
SYD
-
IAH
2 stops21h 41m
American Airlines
Deal found 3/16$878
This American Airlines deal was found by Cheapflights users on 3/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/298:09 pm
IAH
-
SYD
1 stop19h 56m
American Airlines
Wed 8/269:10 am
SYD
-
IAH
1 stop25h 50m
American Airlines
Deal found 3/16$896
This Trip.com deal was found by Cheapflights users on 3/19. 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.
Tue 5/54:21 pm
IAH
-
SYD
2 stops38h 49m
Multiple Airlines
Wed 5/271:20 pm
SYD
-
IAH
2 stops27h 05m
Multiple Airlines
Deal found 3/19$920
This KAYAK deal was found by Cheapflights users on 3/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:41 pm
IAH
-
SYD
1 stop20h 49m
Qantas Airways
Sun 5/175:50 pm
SYD
-
IAH
1 stop40h 21m
Qantas Airways
Deal found 3/16$931
This flugladen.de deal was found by Cheapflights users on 3/18. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:00 am
IAH
-
SYD
2 stops38h 50m
Multiple Airlines
Mon 5/251:15 pm
SYD
-
IAH
2 stops27h 10m
Multiple Airlines
Deal found 3/18$934
This American Airlines deal was found by Cheapflights users on 3/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/167:41 pm
IAH
-
SYD
1 stop20h 24m
American Airlines
Sun 5/319:10 am
SYD
-
IAH
1 stop25h 32m
American Airlines
Deal found 3/16$946
This American Airlines deal was found by Cheapflights users on 3/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/68:31 pm
IAH
-
SYD
1 stop19h 34m
American Airlines
Fri 8/219:10 am
SYD
-
IAH
1 stop25h 50m
American Airlines
Deal found 3/16$996
This Air Canada deal was found by Cheapflights users on 3/21. 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 4/284:32 pm
IAH
-
SYD
2 stops47h 48m
Air Canada
Tue 5/129:20 am
SYD
-
IAH
2 stops43h 14m
Air Canada
Deal found 3/21$1,056

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 March 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$878
(American Airlines)

One-way from

$402
(Trip.com)

Popular in

December

Cheapest in

October

Average price

$1,526

Good round-trip deal

$1,480 or less
Provider with most accurate pricing for Houston George Bush Intcntl-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Houston George Bush Intcntl-Sydney Kingsford Smith flights.
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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. 11% potential increase in price ($187 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip 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 March 21, 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 round-trip

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 7/29

1:15 pm-6:50 am

2 stops26h 35m

Sydney Kingsford Smith

Mon 8/24

9:15 am-5:47 pm

2 stops23h 32m

$1,400

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 7/29

1:15 pm-6:50 am

2 stops26h 35m

Sydney Kingsford Smith

Tue 8/25

9:15 am-5:47 pm

2 stops23h 32m

$1,400

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 7/27

1:15 pm-6:50 am

2 stops26h 35m

Sydney Kingsford Smith

Sun 8/23

9:15 am-5:47 pm

2 stops23h 32m

$1,400
Quickest round-trip

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 7/26

4:00 pm-6:50 am

1 stop23h 50m

Sydney Kingsford Smith

Sat 8/29

9:15 am-2:55 pm

1 stop20h 40m

$1,445

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 5/4

4:00 pm-6:50 am

1 stop23h 50m

Sydney Kingsford Smith

Wed 5/13

9:15 am-3:13 pm

1 stop20h 58m

$1,445

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 8/1

11:30 am-6:50 am

2 stops28h 20m

Sydney Kingsford Smith

Mon 8/10

9:15 am-5:47 pm

2 stops23h 32m

$1,499

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Fri 5/8

2:30 pm-7:10 pm

2 stops37h 40m

Sydney Kingsford Smith

Tue 5/12

9:05 pm-7:10 pm

2 stops37h 05m

$1,529

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 8/6

4:00 pm-6:50 am

1 stop23h 50m

Sydney Kingsford Smith

Fri 8/21

9:15 am-2:55 pm

1 stop20h 40m

$1,545

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 5/14

11:34 am-6:50 am

2 stops28h 16m

Sydney Kingsford Smith

Thu 5/28

9:15 am-7:09 pm

2 stops24h 54m

$1,549

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 8/1

10:03 pm-7:00 am

1 stop41h 57m

Sydney Kingsford Smith

Sun 8/9

9:30 am-6:39 pm

1 stop24h 09m

$1,619

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Showing 1-10 of 19 resultsSorted by cheapest first
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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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 FlightHub the most. FlightHub 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 March 13, 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 $199). Flying from Houston George Bush Intcntl Airport to Sydney in April is currently the most expensive (average of $1,155). 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 March 21, 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.

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 March 21, 2026.
Get a feel of what it's like to fly with Fiji Airways,Air New Zealand, andUnited Airlines 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
8.1
Very good
233 reviews

Entertainment

7.5

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.5

Crew

8.5

Reviews

1 / 18
10.0
Excellent

Anonymous,Feb 2026

SFO - NAN

Very friendly staff, warm service, well maintained aircraft, comfortable seats, and reliable on-time performance 👍👍
Fiji Airways
8.1
Very good
233 reviews
Fiji Airways
8.1
Very good
233 reviews

Entertainment

7.5

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.5

Crew

8.5

Reviews

1 / 18
10.0
Excellent

Anonymous,Feb 2026

SFO - NAN

Very friendly staff, warm service, well maintained aircraft, comfortable seats, and reliable on-time performance 👍👍
Air New Zealand
8.0
Very good
616 reviews
Fiji Airways
8.1
Very good
233 reviews

Entertainment

7.5

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.5

Crew

8.5

Reviews

1 / 18
10.0
Excellent

Anonymous,Feb 2026

SFO - NAN

Very friendly staff, warm service, well maintained aircraft, comfortable seats, and reliable on-time performance 👍👍
United Airlines
7.4
Good
9,453 reviews
Fiji Airways
8.1
Very good
233 reviews

Entertainment

7.5

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.5

Crew

8.5

Reviews

1 / 18
10.0
Excellent

Anonymous,Feb 2026

SFO - NAN

Very friendly staff, warm service, well maintained aircraft, comfortable seats, and reliable on-time performance 👍👍
American Airlines
7.1
Good
11,489 reviews
Fiji Airways
8.1
Very good
233 reviews

Entertainment

7.5

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.5

Crew

8.5

Reviews

1 / 18
10.0
Excellent

Anonymous,Feb 2026

SFO - NAN

Very friendly staff, warm service, well maintained aircraft, comfortable seats, and reliable on-time performance 👍👍
Air Canada
7.1
Good
10,828 reviews
Fiji Airways
8.1
Very good
233 reviews

Entertainment

7.5

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.5

Crew

8.5

Reviews

1 / 18
10.0
Excellent

Anonymous,Feb 2026

SFO - NAN

Very friendly staff, warm service, well maintained aircraft, comfortable seats, and reliable on-time performance 👍👍

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 $878, American Airlines can have you in Sydney from Houston George Bush Intcntl Airport in 20h 24m. 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 $203. Other airlines that can offer you cheap pricing are Fiji Airways, from $702, and Qantas Airways, from $794. These flights start at 85% 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 $425 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 (86%), United Airlines (86%), Lufthansa( 86%).

  • 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 $1,556, our data shows the cheapest flight currently is $1,480. When looking at the most popular route, (Houston George Bush Intcntl - Sydney Kingsford Smith), you can expect to pay $866 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 $199). Flying from Houston George Bush Intcntl Airport to Sydney in April is currently the most expensive (average of $1,155). 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
Coogee
Manly

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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 March 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$203Average$976FlexibilityNo cancel feeOn-timeN/A
Fiji AirwaysCheapest$702Average$1,128FlexibilityNo cancel feeOn-time74%
Qantas AirwaysCheapest$794Average$926FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$832Average$864FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$856Average$1,755FlexibilityNo cancel feeOn-time69%
Air New ZealandCheapest$1,006Average$1,388FlexibilityNo cancel feeOn-time78%
Air CanadaCheapest$1,037Average$1,331FlexibilityNo cancel feeOn-time67%

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