Find flights
When to book
FAQs

Cheap flights from Houston to Sydney from $659

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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — SYD
9 May — 16 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Houston to Sydney

Enter your travel dates to find the best prices.

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 9 April 2026.

Tue 5/506:00
IAH
-
SYD
2 stops38h 50m
Multiple Airlines
Tue 2/613:15
SYD
-
IAH
2 stops27h 10m
Multiple Airlines
Deal found 6/4$1,218
Wed 6/506:00
IAH
-
SYD
2 stops38h 50m
Multiple Airlines
Fri 15/513:15
SYD
-
IAH
2 stops27h 10m
Multiple Airlines
Deal found 9/4$1,242
Mon 4/510:31
IAH
-
SYD
2 stops34h 19m
Multiple Airlines
Sun 17/506:00
SYD
-
IAH
3 stops54h 10m
Multiple Airlines
Deal found 5/4$1,429
Sun 24/520:33
IAH
-
SYD
2 stops24h 17m
Multiple Airlines
Sun 31/513:15
SYD
-
IAH
2 stops30h 35m
Multiple Airlines
Deal found 9/4$1,643
Tue 5/516:07
IAH
-
SYD
2 stops28h 43m
Multiple Airlines
Tue 12/517:50
SYD
-
IAH
1 stop36h 21m
Multiple Airlines
Deal found 7/4$1,721
Sun 24/520:33
IAH
-
SYD
2 stops31h 52m
Multiple Airlines
Fri 5/609:00
SYD
-
IAH
2 stops34h 50m
Multiple Airlines
Deal found 8/4$1,785
Tue 16/606:10
IAH
-
SYD
2 stops38h 40m
Multiple Airlines
Sat 4/713:15
SYD
-
IAH
2 stops40h 56m
Multiple Airlines
Deal found 8/4$1,786
Sat 2/516:18
HOU
-
SYD
2 stops28h 32m
Fiji Airways
Sat 9/513:15
SYD
-
HOU
2 stops25h 39m
Fiji Airways
Deal found 5/4$2,129
Mon 1/618:39
HOU
-
SYD
2 stops21h 26m
American Airlines
Mon 15/609:10
SYD
-
HOU
2 stops21h 35m
American Airlines
Deal found 8/4$2,160
Mon 25/520:23
HOU
-
SYD
1 stop19h 32m
American Airlines
Wed 10/612:00
SYD
-
HOU
1 stop21h 09m
American Airlines
Deal found 5/4$2,167
Tue 5/516:18
HOU
-
SYD
1 stop23h 37m
American Airlines
Tue 2/612:00
SYD
-
HOU
1 stop18h 45m
American Airlines
Deal found 6/4$2,181
Mon 4/516:18
HOU
-
SYD
2 stops23h 47m
American Airlines
Wed 13/512:00
SYD
-
HOU
1 stop22h 49m
American Airlines
Deal found 6/4$2,187

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 9 April 2026.

Round-trip from

$1,218

One-way from

$659

Popular in

January

Cheapest in

July

Average price

$2,472
5/5-2/6
  • 5/5-2/6
  • 4 total stops
  • 66h 00m total
  • Houston to Sydney
Search Deals
4/5
  • 4/5
  • 2 total stops
  • 44h 39m total
  • Houston to Sydney
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($354 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($74 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 9 April 2026.
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 return flight

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 28/5

17:57-18:50

2 stops33h 53m

Sydney Kingsford Smith

Sun 7/6

20:45-13:46

2 stops32h 01m

$2,142

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 27/5

17:57-18:50

2 stops33h 53m

Sydney Kingsford Smith

Sun 7/6

20:45-13:46

2 stops32h 01m

$2,142

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 1/8

22:03-07:00

1 stop41h 57m

Sydney Kingsford Smith

Tue 11/8

19:20-16:25

1 stop36h 05m

$2,183

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Fri 29/5

17:57-18:50

2 stops33h 53m

Sydney Kingsford Smith

Tue 9/6

20:45-06:20

2 stops24h 35m

$2,194

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Sun 16/8

18:19-06:55

1 stop21h 36m

Sydney Kingsford Smith

Sat 29/8

12:00-23:53

1 stop26h 53m

$2,252

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 26/7

18:19-18:50

2 stops33h 31m

Sydney Kingsford Smith

Sat 15/8

20:45-13:35

2 stops31h 50m

$2,302

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 30/7

18:19-18:50

2 stops33h 31m

Sydney Kingsford Smith

Tue 11/8

20:45-06:20

2 stops24h 35m

$2,306

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 31/8

21:05-19:10

2 stops55h 05m

Sydney Kingsford Smith

Fri 4/9

21:05-19:10

2 stops37h 05m

$2,336

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Sat 1/8

18:38-11:50

2 stops26h 12m

Sydney Kingsford Smith

Tue 11/8

13:15-19:51

2 stops21h 36m

$2,336

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 29/7

18:19-18:50

2 stops33h 31m

Sydney Kingsford Smith

Sun 16/8

20:45-13:35

2 stops31h 50m

$2,388

Flights are sorted by cheapest return flights first.

Deals found on 9/4

Showing 1-10 of 42 resultsSorted by cheapest first
1
2
3
...
5

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 return 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 return flight from Houston to Sydney. Price data was last updated on 3 April 2026.

Booking 26 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 $282). Flying from Houston to Sydney in January is currently the most expensive (average of $1,201). 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.

How much does it cost for a return flight from Houston to Sydney?

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?

    For a flight from Houston to Sydney, you will be flying into Kingsford Smith. Sydney Kingsford Smith (SYD) is just 7.5 km from the centre vof the city. Kingsford Smith is the only Sydney airport and it handles 0 inbound flights from Houston per day. 0 airlines have flights to Sydney Kingsford Smith from Houston on a regular basis.

  • How long is the flight from Houston to Sydney?

    Departing from Houston to Sydney will take you 21h 36m. Houston and Sydney are separated by a distance of 13818 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 holiday 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 $282). Flying from Houston to Sydney in January is currently the most expensive (average of $1,201). 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

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Penrith
Terrigal
Katoomba
Lithgow
Cronulla
Manly
Bondi Beach
Coogee
Leura
Randwick

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.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Houston to Sydney?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Houston to Sydney. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Houston to Sydney?

Cheapflights helps you find that perfect flight to Sydney from Houston by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Houston to Sydney with no change fees?

Yes! Cheapflights helps users easily find flights from Houston to Sydney with no change fees.

Can Cheapflights notify me if prices for flights from Houston to Sydney become cheaper?

Yes! Start tracking prices for Houston to Sydney flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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.