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$534+ Cheap flights from Houston 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — SYD
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Houston to Sydney Kingsford Smith are usually found in July or March, booked 46 days in advance, depart on a Tuesday or Saturday and return on a Tuesday

Cheap flight deals from Houston to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) 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 September 16, 2025.

Round-trip from

$1,012
(CrystalTravel)

One-way from

$534
(Kiwi.com)

Popular in

December

Cheapest in

July

Average price

$1,152
From Houston to Sydney Kingsford Smith
Search Deals
One-way flight from Houston to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($309 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($78 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Houston to Sydney

Cheapest flights from Houston to Sydney
Explore the most affordable flight options available from Houston to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This CrystalTravel deal was found by Cheapflights users on 9/15. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/38:05 pmIAH - SYD
1 stop19h 40mAir New Zealand
Sun 11/169:55 amSYD - IAH
1 stop21h 10mAir New Zealand
Deal found 9/15$1,022
This Vliegwinkel deal was found by Cheapflights users on 9/16. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/98:05 pmIAH - SYD
1 stop19h 40mAir New Zealand
Sun 11/2311:45 amSYD - IAH
1 stop19h 20mAir New Zealand
Deal found 9/16$1,023
This CrystalTravel deal was found by Cheapflights users on 9/15. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/134:25 pmIAH - SYD
2 stops26h 10mAir New Zealand
Sun 10/2611:45 amSYD - IAH
1 stop19h 20mAir New Zealand
Deal found 9/15$1,027
This CrystalTravel deal was found by Cheapflights users on 9/15. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/204:25 pmIAH - SYD
2 stops24h 20mAir New Zealand
Sun 11/21:55 pmSYD - IAH
2 stops27h 04mAir New Zealand
Deal found 9/15$1,036
This CrystalTravel deal was found by Cheapflights users on 9/14. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/42:20 pmIAH - SYD
2 stops25h 25mAir New Zealand
Tue 11/1811:45 amSYD - IAH
2 stops23h 46mAir New Zealand
Deal found 9/14$1,047
This oojo deal was found by Cheapflights users on 9/15. 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 10/134:25 pmIAH - SYD
2 stops26h 10mAir New Zealand
Mon 10/209:55 amSYD - IAH
2 stops27h 42mAir New Zealand
Deal found 9/15$1,049
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Tue 10/146:44 amIAH - SYD
2 stops34h 16mMultiple Airlines
Tue 10/212:15 pmSYD - IAH
2 stops31h 05mMultiple Airlines
Deal found 9/15$1,055
This Fiji Airways deal was found by Cheapflights users on 9/15. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/308:11 pmHOU - SYD
2 stops24h 49mMultiple Airlines
Thu 11/62:00 pmSYD - HOU
2 stops22h 50mMultiple Airlines
Deal found 9/15$1,167
This Fiji Airways deal was found by Cheapflights users on 9/14. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/116:37 pmHOU - SYD
2 stops24h 53mMultiple Airlines
Tue 11/182:10 pmSYD - HOU
2 stops23h 10mMultiple Airlines
Deal found 9/14$1,186
This Fiji Airways deal was found by Cheapflights users on 9/15. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:39 pmHOU - SYD
2 stops26h 06mMultiple Airlines
Sat 11/82:30 pmSYD - HOU
2 stops22h 50mMultiple Airlines
Deal found 9/15$1,199
This Fiji Airways deal was found by Cheapflights users on 9/14. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/236:44 pmHOU - SYD
2 stops26h 01mMultiple Airlines
Thu 10/92:15 pmSYD - HOU
2 stops21h 26mMultiple Airlines
Deal found 9/14$1,220
This Fiji Airways deal was found by Cheapflights users on 9/16. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/258:32 pmHOU - SYD
2 stops24h 43mMultiple Airlines
Tue 10/72:15 pmSYD - HOU
2 stops23h 59mMultiple Airlines
Deal found 9/16$1,268

Cheapflights Fare Finder

 
Customize your flight search to find flights from Houston 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 September 16, 2025.
Use the filters below to find and compare flights from Houston to Sydney that are best for you.

Fly from

Houston

Fly to

Sydney

Route

Depart

Return

Price

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Thu 10/30

8:11 pm-1:00 pm

2 stops24h 49m

Sydney Kingsford Smith

Thu 11/6

2:00 pm-7:50 pm

2 stops22h 50m

$1,169

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 12/14

6:20 am-7:45 pm

2 stops44h 25m

Sydney Kingsford Smith

Wed 1/14

9:40 pm-11:59 pm

2 stops43h 19m

$1,192

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 10/28

6:39 pm-12:45 pm

2 stops26h 06m

Sydney Kingsford Smith

Sat 11/8

2:30 pm-8:20 pm

2 stops22h 50m

$1,199

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 9/27

6:35 pm-11:45 am

2 stops26h 10m

Sydney Kingsford Smith

Tue 10/7

2:15 pm-7:03 pm

2 stops20h 48m

$1,268

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 10/14

6:39 pm-12:45 pm

2 stops26h 06m

Sydney Kingsford Smith

Tue 10/28

2:15 pm-10:14 pm

2 stops23h 59m

$1,317

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 10/14

6:39 pm-12:45 pm

2 stops26h 06m

Sydney Kingsford Smith

Tue 10/21

2:15 pm-10:14 pm

2 stops23h 59m

$1,337

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 3/7

6:49 pm-12:30 pm

2 stops24h 41m

Sydney Kingsford Smith

Tue 3/10

6:00 am-8:00 pm

2 stops30h 00m

$1,368

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Sat 10/11

6:39 pm-12:45 pm

2 stops26h 06m

Sydney Kingsford Smith

Thu 10/30

2:15 pm-10:02 pm

2 stops23h 47m

$1,395

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 9/27

6:35 pm-11:45 am

2 stops26h 10m

Sydney Kingsford Smith

Sat 10/4

1:45 pm-8:15 pm

2 stops21h 30m

$1,418

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 2/10

8:25 pm-7:00 am

Nonstop17h 35m

Sydney Kingsford Smith

Tue 3/24

11:50 am-11:25 am

Nonstop15h 35m

$1,448

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 37 results
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The best insider tips for Houston 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 to Sydney trip
Airports
IAH

Check the IAH Depart tab for current security checkpoint wait times to ensure a smooth departure experience.

Read more about IAHby Evie Carrick
SYD

Use the T8 Airport Line for a quick train ride to Sydney's central business district in 15-25 minutes.

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 Houston to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Houston 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 to Sydney

How far ahead should I book a flight from Houston to Sydney?

Use this chart to determine the optimal time to book a round-trip flight from Houston to Sydney. Price data was last updated on September 12, 2025.

Booking 46 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Houston to Sydney?

Currently, March is the cheapest month in which you can book a flight from Houston to Sydney (average of $1,032). Flying from Houston to Sydney in December is currently the most expensive (average of $1,627). 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 HOU to SYD?

Find hourly flight availability from Houston 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 September 16, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 38% on flights from Houston to Sydney by exploring options for tickets at noon.

What is the cheapest day to fly from Houston to Sydney?

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

Travelers seeking maximum savings on their Houston to Sydney flight should consider departing on Sunday afternoons when fares are most often at their lowest. Friday mornings 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 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 September 16, 2025.
Read reviews from past customers who have flown Air New Zealand, Delta, and Qantas Airways from Houston to Sydney. 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 New Zealand
8.0
Very good
505 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.4

Overall

8.0

Food

7.3

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
Air New Zealand
8.0
Very good
505 reviews
Air New Zealand
8.0
Very good
505 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.4

Overall

8.0

Food

7.3

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
Delta
8.0
Very good
7,957 reviews
Air New Zealand
8.0
Very good
505 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.4

Overall

8.0

Food

7.3

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
Qantas Airways
7.5
Good
907 reviews
Air New Zealand
8.0
Very good
505 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.4

Overall

8.0

Food

7.3

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
United Airlines
7.4
Good
8,924 reviews
Air New Zealand
8.0
Very good
505 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.4

Overall

8.0

Food

7.3

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
American Airlines
7.2
Good
10,000 reviews
Air New Zealand
8.0
Very good
505 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.4

Overall

8.0

Food

7.3

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Related info for your journey

Find useful and relevant information for your journey from Houston 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?

    Located just 4.6 mi from the city center, Sydney Kingsford Smith is the airport most travelers will use when flying to Sydney from Houston. Booking flights from Houston to Kingsford Smith (SYD) should be relatively easy as there are 0 daily inbound flights from Houston from 7 different airlines.

  • How long is the flight from Houston to Sydney?

    Departing from Houston to Sydney will take you 17h 35m. The distance from Houston to Sydney is about 8591 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Houston to Sydney round-trip?

    Currently priced at $799, Qantas Airways will fly you from Houston to Sydney and back. In addition to Qantas Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Delta - these airlines can fly you to your destination from $823 and $830, respectively. Qantas Airways is 30% cheaper than the average price of flights available within the next 90 days to this destination.

  • Where are the most common layover locations when flying from Houston to Sydney?

    The most popular layover on flights from Houston to Sydney is Auckland.

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

    Auckland travelers tend to visit New Zealand Maritime Museum, Sky Tower, and University Clock Tower more than anywhere else. New Zealand Maritime Museum, Sky Tower and University Clock Tower are located about 11.4 mi, 10.9 mi, and 10.7 mi, respectively from Auckland Intl if you are interested in checking them out. Those looking to explore during their layover in Auckland can rent a car from Auckland Intl for about $35 per day.

  • Where are the least popular layover locations for Houston to Sydney flights?

    The least popular layover on flights from Houston to Sydney is Los Angeles.

  • Can I find deals for flights from Houston to Sydney that include hotel bookings?

    Yes. In addition to deals on Houston to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Houston to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to Sydney.

  • Can I find deals for business class flights from Houston to Sydney?

    Yes. Cheapflights offers flight deals from Houston 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 to Sydney?

    Currently, March is the cheapest month in which you can book a flight from Houston to Sydney (average of $1,032). Flying from Houston to Sydney in December is currently the most expensive (average of $1,627). 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
Coogee

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Top 7 airlines flying from Houston to Sydney

Discover the top 7 airlines that operate flights from Houston 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$799Average$925FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$823Average$866FlexibilityNo cancel feeOn-time71%
DeltaCheapest$830Average$1,006FlexibilityNo cancel feeOn-timeN/A
Fiji AirwaysCheapest$859Average$1,162FlexibilityNo cancel feeOn-time74%
Air New ZealandCheapest$959Average$1,380FlexibilityNo cancel feeOn-time78%
Air CanadaCheapest$998Average$1,233FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$1,352Average$1,737FlexibilityNo cancel feeOn-time69%

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