Sydney

$469+ 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 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — SYD
Mar 6 — Mar 131
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Cheap 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 February 4, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/4. 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.
Tue 4/289:33 am
IAH
-
SYD
1 stop30h 57m
Multiple Airlines
Mon 5/116:00 am
SYD
-
IAH
2 stops51h 02m
Multiple Airlines
Deal found 2/4$916
This Kiwi.com deal was found by Cheapflights users on 2/4. 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.
Tue 4/289:33 am
IAH
-
SYD
1 stop30h 57m
Multiple Airlines
Sat 5/161:15 pm
SYD
-
IAH
2 stops26h 42m
Multiple Airlines
Deal found 2/4$938
This Kiwi.com deal was found by Cheapflights users on 2/4. 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.
Wed 5/204:49 pm
IAH
-
SYD
1 stop23h 41m
Multiple Airlines
Sat 5/301:15 pm
SYD
-
IAH
2 stops26h 42m
Multiple Airlines
Deal found 2/4$943
This Kiwi.com deal was found by Cheapflights users on 2/3. 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.
Wed 4/14:22 pm
IAH
-
SYD
1 stop23h 08m
Multiple Airlines
Fri 5/11:15 pm
SYD
-
IAH
2 stops26h 42m
Multiple Airlines
Deal found 2/3$944
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Tue 5/59:33 am
IAH
-
SYD
1 stop30h 57m
Multiple Airlines
Tue 5/191:15 pm
SYD
-
IAH
2 stops26h 42m
Multiple Airlines
Deal found 2/2$947
This Kiwi.com deal was found by Cheapflights users on 2/4. 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 3/194:04 pm
IAH
-
SYD
1 stop23h 21m
Multiple Airlines
Thu 3/262:00 pm
SYD
-
IAH
2 stops25h 54m
Multiple Airlines
Deal found 2/4$951
This Mytrip deal was found by Cheapflights users on 2/3. 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 2/104:08 pm
IAH
-
SYD
2 stops27h 27m
Multiple Airlines
Tue 2/176:00 am
SYD
-
IAH
2 stops35h 30m
Multiple Airlines
Deal found 2/3$952
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Tue 2/244:34 pm
IAH
-
SYD
1 stop21h 51m
Multiple Airlines
Fri 3/62:00 pm
SYD
-
IAH
2 stops44h 07m
Multiple Airlines
Deal found 2/2$954
This Kiwi.com deal was found by Cheapflights users on 2/4. 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.
Fri 5/19:33 am
IAH
-
SYD
1 stop30h 57m
Multiple Airlines
Tue 5/121:15 pm
SYD
-
IAH
2 stops26h 42m
Multiple Airlines
Deal found 2/4$961
This Trip.com deal was found by Cheapflights users on 2/2. 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.
Wed 3/44:34 pm
IAH
-
SYD
2 stops36h 31m
Multiple Airlines
Wed 3/112:00 pm
SYD
-
IAH
2 stops26h 30m
Multiple Airlines
Deal found 2/2$962
This Trip.com deal was found by Cheapflights users on 2/2. 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 3/204:04 pm
IAH
-
SYD
2 stops38h 01m
Multiple Airlines
Fri 3/272:00 pm
SYD
-
IAH
2 stops25h 54m
Multiple Airlines
Deal found 2/2$972
This American Airlines deal was found by Cheapflights users on 2/3. 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.
Tue 6/238:22 pm
HOU
-
SYD
1 stop19h 33m
American Airlines
Wed 7/112:00 pm
SYD
-
HOU
1 stop20h 53m
American Airlines
Deal found 2/3$1,454

Find 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 February 4, 2026.

Round-trip from

$938
(Kiwi.com)

One-way from

$469
(Kiwi.com)

Popular in

January

Cheapest in

July

Average price

$1,229
From Houston to Sydney Kingsford Smith
One-way flight from Houston to Sydney Kingsford Smith
Highest demand for flights based on searches. 15% potential increase in price ($203 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
Average for round-trip flights in February 2026

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 February 4, 2026.
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

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 5/5

4:49 pm-11:45 am

2 stops27h 56m

Sydney Kingsford Smith

Tue 5/19

6:00 am-12:57 am

2 stops33h 57m

$1,053

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 4/6

11:50 am-7:20 am

3 stops52h 30m

Sydney Kingsford Smith

Fri 4/10

9:20 am-1:34 pm

2 stops43h 14m

$1,338

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 4/29

6:18 pm-6:50 pm

2 stops33h 32m

Sydney Kingsford Smith

Thu 5/14

8:45 pm-1:33 pm

2 stops31h 48m

$1,418

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 4/29

6:18 pm-6:50 pm

2 stops33h 32m

Sydney Kingsford Smith

Sat 5/16

8:45 pm-1:33 pm

2 stops31h 48m

$1,418

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 5/7

6:18 pm-6:50 pm

2 stops33h 32m

Sydney Kingsford Smith

Sun 5/17

8:45 pm-1:33 pm

2 stops31h 48m

$1,428

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 2/15

8:25 pm-7:00 am

Nonstop17h 35m

Sydney Kingsford Smith

Sun 3/1

11:50 am-10:25 am

Nonstop15h 35m

$1,453

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

$1,454

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 3/11

9:30 pm-7:00 am

Nonstop17h 30m

Sydney Kingsford Smith

Tue 3/24

11:50 am-11:25 am

Nonstop15h 35m

$1,455

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

$1,455

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

$1,455

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 34 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 January 30, 2026.

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, May is the cheapest month in which you can book a flight from Houston to Sydney (average of $414). Flying from Houston to Sydney in January is currently the most expensive (average of $846). 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 February 4, 2026.

When flying from Houston 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 to Sydney?

The best insider tips for Houston 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 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.

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.

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 February 4, 2026.
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.

Comfort

8.0

Entertainment

7.4

Food

7.4

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane

Comfort

8.0

Entertainment

7.4

Food

7.4

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane

Comfort

8.0

Entertainment

7.4

Food

7.4

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane

Comfort

8.0

Entertainment

7.4

Food

7.4

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane

Comfort

8.0

Entertainment

7.4

Food

7.4

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane

Comfort

8.0

Entertainment

7.4

Food

7.4

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane

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 23h 47m. The distance from Houston to Sydney is about 8586 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 $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 $447 and $817, respectively. Delta is 70% 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 Qantas Airways, with whom users have recently found tickets for as low as $385. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Houston to Sydney for a low price.

  • 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, May is the cheapest month in which you can book a flight from Houston to Sydney (average of $414). Flying from Houston to Sydney in January is currently the most expensive (average of $846). 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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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 February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$337Average$948FlexibilityNo cancel feeOn-timeN/A
Qantas AirwaysCheapest$447Average$944FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$817Average$847FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$839Average$1,684FlexibilityNo cancel feeOn-time69%
Air New ZealandCheapest$957Average$1,331FlexibilityNo cancel feeOn-time78%
Fiji AirwaysCheapest$971Average$1,162FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$997Average$1,202FlexibilityNo cancel feeOn-time67%

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