HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sydney

$431+ 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 11/29. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — SYD
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from George Bush Intcntl to Sydney with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 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 junio 12, 2025.

Round-trip from

$1,072
(Mytrip)

One-way from

$447
(Delta)

Popular in

December

Cheapest in

May

Average price

$1,068

Good round-trip deal

$1,493 or less

Good one-way deal

$911 or less
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. 17% potential increase in price ($260 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
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

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 junio 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/10. 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.
vie. 10/245:45 amIAH - SYD
2 stops34h 35mMultiple Airlines
mar. 11/46:00 amSYD - IAH
2 stops35h 19mMultiple Airlines
Deal found 6/10$1,057
This Gurufare deal was found by Cheapflights users on 6/10. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/309:55 pmIAH - SYD
1 stop19h 50mAir New Zealand
sáb. 8/96:20 pmSYD - IAH
1 stop36h 55mAir New Zealand
Deal found 6/10$1,075
This Delta deal was found by Cheapflights users on 6/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/84:00 pmIAH - SYD
1 stop23h 35mDelta
lun. 10/2010:25 amSYD - IAH
1 stop29h 05mDelta
Deal found 6/12$1,076
This FlightHub deal was found by Cheapflights users on 6/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/166:50 pmIAH - SYD
2 stops25h 55mFiji Airways
sáb. 8/301:45 pmSYD - IAH
2 stops21h 21mFiji Airways
Deal found 6/9$1,082
This Air Canada deal was found by Cheapflights users on 6/11. 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.
mié. 9/2410:00 amIAH - SYD
3 stops54h 20mAir Canada
jue. 10/29:20 amSYD - IAH
2 stops43h 11mAir Canada
Deal found 6/11$1,101

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 junio 12, 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

vie. 10/24

5:45 am-8:20 am

2 stops34h 35m

Sydney Kingsford Smith

mar. 11/4

6:00 am-12:19 am

2 stops35h 19m

$1,057

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

mié. 7/30

9:55 pm-8:45 am

1 stop19h 50m

Sydney Kingsford Smith

sáb. 8/9

6:20 pm-4:15 pm

1 stop36h 55m

$1,075

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

mié. 10/8

4:00 pm-7:35 am

1 stop23h 35m

Sydney Kingsford Smith

lun. 10/20

10:25 am-11:30 pm

1 stop29h 05m

$1,076

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

sáb. 8/16

6:50 pm-11:45 am

2 stops25h 55m

Sydney Kingsford Smith

sáb. 8/30

1:45 pm-8:06 pm

2 stops21h 21m

$1,082

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

mié. 9/24

10:00 am-7:20 am

3 stops54h 20m

Sydney Kingsford Smith

jue. 10/2

9:20 am-1:31 pm

2 stops43h 11m

$1,101

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

sáb. 11/29

7:50 am-8:35 am

2 stops31h 45m

$431

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

mié. 11/12

2:49 pm-12:30 pm

3 stops28h 41m

$512

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

dom. 11/23

4:40 pm-9:00 am

1 stop23h 20m

$749

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

dom. 11/23

8:25 pm-7:00 am

Nonstop17h 35m

$831

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

mar. 7/1

6:11 pm-11:45 am

2 stops26h 34m

$955

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 14 results
1
2

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 June 9, 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 37 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, March is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Sydney (average of $1,041). Flying from Houston George Bush Intcntl Airport to Sydney in December is currently the most expensive (average of $1,635). 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 junio 12, 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.

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 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Sydney when rainfall is around 2.0 in.

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 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

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 junio 12, 2025.
Peruse reviews from past customers who have flown with Air Tahiti Nui, Fiji Airways and Alaska Airlines from Houston to Sydney to help guide your decision. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very good
64 reviews

Boarding

8.7

Comfort

8.1

Entertainment

7.3

Overall

8.7

Food

7.8

Crew

9.0

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

Boarding

8.7

Comfort

8.1

Entertainment

7.3

Overall

8.7

Food

7.8

Crew

9.0

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

Boarding

8.7

Comfort

8.1

Entertainment

7.3

Overall

8.7

Food

7.8

Crew

9.0

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.
Alaska Airlines
8.0
Very good
10,000 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Boarding

8.7

Comfort

8.1

Entertainment

7.3

Overall

8.7

Food

7.8

Crew

9.0

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
7,946 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Boarding

8.7

Comfort

8.1

Entertainment

7.3

Overall

8.7

Food

7.8

Crew

9.0

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

Boarding

8.7

Comfort

8.1

Entertainment

7.3

Overall

8.7

Food

7.8

Crew

9.0

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?

    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 $1,075. Other airlines that can offer you cheap pricing are Delta, from $1,080, and Fiji Airways, from $1,082. These flights start at 12% 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 $447 on Delta. Other airlines that offer cheap prices include Fiji Airways from $955 and Qantas Airways from $964 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 $1,227, our data shows the cheapest flight currently is $895. When looking at the most popular route, (Houston George Bush Intcntl - Sydney Kingsford Smith), you can expect to pay $836 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 $40 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, March is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Sydney (average of $1,041). Flying from Houston George Bush Intcntl Airport to Sydney in December is currently the most expensive (average of $1,635). 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 Houston George Bush Intcntl Airport?

Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locations
Wollongong
Parramatta
Manly
Coogee

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$799Average$1,085FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$824Average$868FlexibilityNo cancel feeOn-time71%
DeltaCheapest$830Average$1,015FlexibilityNo cancel feeOn-timeN/A
Fiji AirwaysCheapest$868Average$1,161FlexibilityNo cancel feeOn-time74%
Air New ZealandCheapest$957Average$1,395FlexibilityNo cancel feeOn-time78%
Air CanadaCheapest$962Average$1,273FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$974Average$1,566FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.