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$380+ 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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — SYD
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
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 54 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 octubre 30, 2025.

Round-trip from

$940
(Mytrip)

One-way from

$380
(Kiwi.com)

Popular in

December

Cheapest in

July

Average price

$1,058
From Houston to Sydney Kingsford Smith
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One-way flight from Houston to Sydney Kingsford Smith
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Highest demand for flights based on searches. 18% potential increase in price ($248 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in October 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 octubre 30, 2025.

This Mytrip deal was found by Cheapflights users on 10/29. 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. 11/286:05 pmIAH - SYD
2 stops25h 25mMultiple Airlines
vie. 12/52:00 pmSYD - IAH
2 stops22h 32mMultiple Airlines
Deal found 10/29$940
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/42:05 pmIAH - SYD
2 stops29h 25mMultiple Airlines
mar. 11/116:00 amSYD - IAH
2 stops33h 04mMultiple Airlines
Deal found 10/28$1,003
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/255:00 amIAH - SYD
2 stops35h 35mMultiple Airlines
mar. 12/211:20 amSYD - IAH
2 stops34h 33mMultiple Airlines
Deal found 10/28$1,045
This Trip.com deal was found by Cheapflights users on 10/29. 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.
lun. 11/172:05 pmIAH - SYD
1 stop25h 55mMultiple Airlines
jue. 12/411:20 amSYD - IAH
1 stop21h 32mMultiple Airlines
Deal found 10/29$1,054
This oojo deal was found by Cheapflights users on 10/28. 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.
lun. 12/18:05 pmIAH - SYD
1 stop21h 25mAir New Zealand
vie. 1/1611:45 amSYD - IAH
1 stop19h 20mAir New Zealand
Deal found 10/28$1,067
This oojo deal was found by Cheapflights users on 10/29. 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.
vie. 11/288:05 pmIAH - SYD
1 stop19h 40mAir New Zealand
lun. 12/89:55 amSYD - IAH
1 stop21h 10mAir New Zealand
Deal found 10/29$1,068
This CrystalTravel deal was found by Cheapflights users on 10/28. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/272:23 pmIAH - SYD
2 stops25h 22mAir New Zealand
jue. 12/411:45 amSYD - IAH
1 stop19h 20mAir New Zealand
Deal found 10/28$1,083
This CrystalTravel deal was found by Cheapflights users on 10/29. 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.
vie. 11/288:05 pmIAH - SYD
1 stop19h 40mAir New Zealand
vie. 12/511:45 amSYD - IAH
2 stops26h 38mAir New Zealand
Deal found 10/29$1,085
This oojo deal was found by Cheapflights users on 10/29. 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.
mié. 11/268:05 pmIAH - SYD
1 stop21h 25mAir New Zealand
mié. 12/37:15 pmSYD - IAH
1 stop35h 50mAir New Zealand
Deal found 10/29$1,089
This Mytrip deal was found by Cheapflights users on 10/27. 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.
jue. 11/276:10 amIAH - SYD
2 stops32h 15mMultiple Airlines
mié. 12/105:45 pmSYD - IAH
1 stop18h 47mMultiple Airlines
Deal found 10/27$1,092
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/2010:40 amHOU - SYD
2 stops28h 50mDelta
vie. 12/510:40 amSYD - HOU
2 stops24h 12mDelta
Deal found 10/28$1,296
This Cathay Pacific deal was found by Cheapflights users on 10/28. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/286:39 pmHOU - SYD
2 stops34h 11mMultiple Airlines
sáb. 11/810:20 pmSYD - HOU
2 stops42h 37mMultiple Airlines
Deal found 10/28$1,458

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 octubre 30, 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

mar. 3/3

4:22 pm-7:15 am

2 stops45h 53m

Sydney Kingsford Smith

lun. 3/16

10:20 pm-11:43 pm

2 stops41h 23m

$1,408

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

lun. 3/2

8:24 pm-12:00 pm

2 stops46h 36m

Sydney Kingsford Smith

lun. 3/16

10:20 pm-11:43 pm

2 stops41h 23m

$1,408

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

mar. 3/10

8:31 pm-9:35 am

2 stops45h 04m

Sydney Kingsford Smith

mar. 3/24

10:20 pm-11:43 pm

2 stops41h 23m

$1,408

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

mar. 2/24

4:22 pm-9:00 am

2 stops23h 38m

Sydney Kingsford Smith

mié. 3/11

11:20 am-6:01 pm

2 stops22h 41m

$1,449

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

vie. 2/20

8:24 pm-9:35 am

2 stops44h 11m

Sydney Kingsford Smith

dom. 3/8

10:20 pm-11:43 pm

2 stops41h 23m

$1,458

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

sáb. 2/28

10:16 am-8:50 pm

2 stops41h 34m

Sydney Kingsford Smith

jue. 3/19

8:45 am-11:43 pm

2 stops30h 58m

$1,458

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

lun. 3/2

12:16 pm-8:50 pm

2 stops39h 34m

Sydney Kingsford Smith

sáb. 3/14

10:20 pm-11:43 pm

2 stops41h 23m

$1,458

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

sáb. 2/21

10:16 am-8:50 pm

2 stops41h 34m

Sydney Kingsford Smith

mar. 3/10

10:20 pm-11:43 pm

2 stops41h 23m

$1,459

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

dom. 3/1

6:00 am-6:50 am

2 stops31h 50m

Sydney Kingsford Smith

dom. 3/15

9:40 am-9:32 am

2 stops39h 52m

$1,466

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

lun. 12/29

9:37 pm-9:05 am

1 stop42h 28m

Sydney Kingsford Smith

lun. 1/12

11:20 am-9:51 pm

1 stop27h 31m

$1,472

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 36 results
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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 October 24, 2025.

Booking 54 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, September is the cheapest month in which you can book a flight from Houston to Sydney (average of $528). Flying from Houston to Sydney in November is currently the most expensive (average of $848). 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 octubre 30, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 30% on flights from Houston to Sydney by exploring options for tickets in the afternoon.

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 Wednesday at noon when fares are most often at their lowest. Saturday 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 to Sydney?

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

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 octubre 30, 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
520 reviews

Food

7.4

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.5

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
520 reviews
Air New Zealand
8.0
Very good
520 reviews

Food

7.4

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.5

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
7.9
Good
7,993 reviews
Air New Zealand
8.0
Very good
520 reviews

Food

7.4

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.5

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
925 reviews
Air New Zealand
8.0
Very good
520 reviews

Food

7.4

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.5

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
8,998 reviews
Air New Zealand
8.0
Very good
520 reviews

Food

7.4

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.5

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
11,030 reviews
Air New Zealand
8.0
Very good
520 reviews

Food

7.4

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.5

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 42h 28m. The distance from Houston to Sydney is about 8591 mi.

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

    Currently priced at $337, Delta will fly you from Houston to Sydney and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Qantas Airways and American Airlines - these airlines can fly you to your destination from $799 and $822, respectively. Delta is 69% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Houston to Sydney one-way?

    The cheapest airline one-way is ANA, with whom users have recently found tickets for as low as $445. However, be on the lookout for offers from Cathay Pacific and Delta, as they are both options that can get you from Houston to Sydney for a low price.

  • 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 $38 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, September is the cheapest month in which you can book a flight from Houston to Sydney (average of $528). Flying from Houston to Sydney in November is currently the most expensive (average of $848). 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

Browse thousands of different options on Cheapflights for your next trip

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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 octubre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$337Average$947FlexibilityNo cancel feeOn-timeN/A
Qantas AirwaysCheapest$799Average$918FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$822Average$863FlexibilityNo cancel feeOn-time71%
Air New ZealandCheapest$957Average$1,362FlexibilityNo cancel feeOn-time78%
Fiji AirwaysCheapest$971Average$1,162FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$998Average$1,242FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$1,371Average$1,771FlexibilityNo cancel feeOn-time69%

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