Sydney

$627+ Cheap flights from Houston to Sydney (SYD)

HOU — SYD
Dec 9 — Dec 161
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Cheap flight deals from Houston to Sydney

Cheapest flights from Houston to Sydney

Wed 12/23:19 pm -
1 stop24h 41m
Wed 12/95:50 pm -
2 stops38h 49m
Deal found 11/4$1,184
Sat 12/53:19 pm -
1 stop24h 41m
Sat 12/127:05 am -
2 stops24h 35m
Deal found 11/5$1,265
Sun 11/86:00 am -
2 stops31h 25m
Mon 11/239:15 am -
Nonstop15h 40m
Deal found 11/4$1,394
Tue 12/110:03 pm -
1 stop39h 22m
Tue 12/86:25 am -
2 stops46h 32m
Deal found 11/6$1,491
Tue 12/16:10 pm -
2 stops43h 15m
Tue 12/811:15 am -
2 stops29h 44m
Deal found 11/7$1,494
Sat 12/59:55 pm -
1 stop39h 30m
Sat 12/261:20 pm -
2 stops33h 26m
Deal found 11/5$1,521
Thu 11/53:19 pm -
2 stops36h 31m
Thu 11/128:45 am -
2 stops28h 41m
Deal found 11/4$1,522
Fri 11/136:40 am -
3 stops32h 55m
Fri 11/202:05 pm -
3 stops27h 17m
Deal found 11/6$1,530
Sun 11/156:00 am -
2 stops31h 25m
Mon 11/2311:15 am -
1 stop26h 34m
Deal found 11/7$1,533
Fri 12/410:03 pm -
1 stop39h 22m
Sat 12/261:20 pm -
2 stops33h 26m
Deal found 11/5$1,542

Find flight deals from Houston to Sydney

Round-trip from

$1,153
(Kiwi.com)

One-way from

$627
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$1,505
From Houston to Sydney Kingsford Smith
One-way flight from Houston to Sydney Kingsford Smith
Highest demand for flights based on searches. 11% potential increase in price ($220 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($53 potential savings vs. average RT price).
Average for round-trip flights in November 2026

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Houston to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 12/7

6:10 pm-6:25 am

2 stops43h 15m

Sydney Kingsford Smith

Wed 12/31

12:00 am-8:00 am

Nonstop0h 00m

$674

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 5/3

12:19 pm-8:10 pm

2 stops40h 51m

Sydney Kingsford Smith

Wed 12/31

12:00 am-8:00 am

Nonstop0h 00m

$772

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Sat 1/16

7:03 am-6:25 am

2 stops30h 22m

Sydney Kingsford Smith

Wed 12/31

12:00 am-8:00 am

Nonstop0h 00m

$862

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 1/18

10:10 am-10:00 am

1 stop30h 50m

Sydney Kingsford Smith

Wed 12/31

12:00 am-8:00 am

Nonstop0h 00m

$1,076

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Wed 12/9

4:15 pm-8:30 am

1 stop23h 15m

Sydney Kingsford Smith

Wed 12/31

12:00 am-8:00 am

Nonstop0h 00m

$1,194

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Wed 1/13

5:35 pm-7:20 pm

1 stop32h 45m

Sydney Kingsford Smith

Wed 12/31

12:00 am-8:00 am

Nonstop0h 00m

$1,270
Quickest round-trip

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Tue 12/8

8:25 pm-7:00 am

Nonstop17h 35m

Sydney Kingsford Smith

Wed 12/31

12:00 am-8:00 am

Nonstop0h 00m

$1,520

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Wed 3/3

6:12 am-9:35 am

2 stops34h 23m

Sydney Kingsford Smith

Thu 3/11

8:45 am-10:31 pm

2 stops30h 46m

$1,522

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Fri 1/22

8:25 pm-7:00 am

Nonstop17h 35m

Sydney Kingsford Smith

Wed 12/31

12:00 am-8:00 am

Nonstop0h 00m

$1,563

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Sat 4/10

7:41 pm-8:10 pm

2 stops33h 29m

Sydney Kingsford Smith

Sat 4/24

2:05 pm-7:11 pm

2 stops44h 06m

$1,622

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/7

Showing 1-10 of 21 resultsSorted by cheapest first
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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

Cheapflights Insights

Everything you need to know about your flight from Houston to Sydney

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 $1,345). Flying from Houston to Sydney in December is currently the most expensive (average of $2,211). 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?

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?

Airfare is typical for this route at the moment.
Houston to Sydney flights typically cost between $1,105 and $1,796 in February.
The cheapest round-trip price found within the last 5 days was $1,153 on Multiple Airlines (Feb 5-Feb 14).

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

Booking 38 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.

The best insider tips for Houston to Sydney flights

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

Read reviews from past customers who have flown Air New Zealand,Delta, andQantas 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

7.9

Overall

8.0

Crew

8.5

Food

7.5

Entertainment

7.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.5

Entertainment

7.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.5

Entertainment

7.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.5

Entertainment

7.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.5

Entertainment

7.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.5

Entertainment

7.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed

Related info for your journey

  • 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 5 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. Generally, flights for this route are nonstop.

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

    Currently priced at $205, 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 American Airlines and Qantas Airways - these airlines can fly you to your destination from $774 and $794, respectively. Delta is 87% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 $1,345). Flying from Houston to Sydney in December is currently the most expensive (average of $2,211). 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

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Houston to Sydney

AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$205Average$366FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$774Average$895FlexibilityNo cancel feeOn-time71%
Qantas AirwaysCheapest$794Average$1,043FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$839Average$1,841FlexibilityNo cancel feeOn-time69%
Air New ZealandCheapest$908Average$1,577FlexibilityNo cancel feeOn-time78%

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