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Cheap flights from Houston to Sydney from $803

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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — SYD
22 Jan — 29 Jan1
1 adult
1 adult, Economy, 0 bags

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 Wednesday or Saturday and return on a Tuesday

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 23 December 2025.

Fri 26/1222:28IAH - SYD
2 stops39h 57mMultiple Airlines
Tue 13/117:45SYD - IAH
1 stop23h 34mMultiple Airlines
Deal found 22/12$1,927
Sat 27/1209:55IAH - SYD
2 stops28h 30mMultiple Airlines
Tue 13/117:45SYD - IAH
1 stop23h 34mMultiple Airlines
Deal found 22/12$2,042
Sat 27/1219:30IAH - SYD
1 stop20h 30mAmerican Airlines
Mon 12/111:20SYD - IAH
1 stop19h 20mAmerican Airlines
Deal found 21/12$2,097
Mon 29/1214:09IAH - SYD
2 stops24h 16mAmerican Airlines
Mon 12/111:20SYD - IAH
1 stop19h 20mAmerican Airlines
Deal found 22/12$2,105
Mon 29/1219:59IAH - SYD
1 stop42h 26mMultiple Airlines
Sun 11/122:00SYD - IAH
2 stops38h 18mMultiple Airlines
Deal found 22/12$2,374
Tue 30/1219:30IAH - SYD
1 stop20h 30mAmerican Airlines
Tue 6/111:20SYD - IAH
1 stop19h 20mAmerican Airlines
Deal found 22/12$2,375
Fri 26/1212:15IAH - SYD
2 stops24h 55mAmerican Airlines
Tue 6/111:20SYD - IAH
1 stop19h 20mAmerican Airlines
Deal found 22/12$2,377
Sun 28/1219:59IAH - SYD
1 stop42h 26mMultiple Airlines
Tue 13/118:25SYD - IAH
2 stops43h 25mMultiple Airlines
Deal found 22/12$2,389
Sat 27/1220:59IAH - SYD
1 stop41h 26mMultiple Airlines
Mon 12/107:00SYD - IAH
2 stops29h 18mMultiple Airlines
Deal found 22/12$2,410
Sun 28/1210:46HOU - SYD
2 stops27h 04mDelta
Mon 12/114:15SYD - HOU
2 stops25h 18mDelta
Deal found 22/12$2,643
Sat 27/1218:40HOU - SYD
2 stops44h 50mDelta
Mon 12/114:15SYD - HOU
2 stops25h 18mDelta
Deal found 22/12$2,677
Wed 24/1210:46HOU - SYD
2 stops28h 44mDelta
Fri 9/110:40SYD - HOU
2 stops28h 53mDelta
Deal found 22/12$3,056

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 23 December 2025.

Round-trip from

$1,283

One-way from

$803

Popular in

January

Cheapest in

July

Average price

$2,054
4/2-11/2
  • 4/2-11/2
  • 4 total stops
  • 72h 11m total
  • Houston to Sydney
Search Deals
13/5
  • 13/5
  • 1 total stop
  • 23h 41m total
  • Houston to Sydney
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($526 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($95 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 23 December 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

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 14/5

18:43-07:30

2 stops21h 47m

Sydney Kingsford Smith

Thu 28/5

09:10-18:33

2 stops24h 23m

$1,509

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 4/5

10:18-06:55

1 stop29h 37m

Sydney Kingsford Smith

Wed 13/5

17:50-23:41

2 stops20h 51m

$2,031

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 4/5

18:31-20:10

2 stops34h 39m

Sydney Kingsford Smith

Wed 13/5

07:40-23:41

2 stops31h 01m

$2,109

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 10/3

21:30-07:00

Nonstop17h 30m

Sydney Kingsford Smith

Tue 24/3

11:50-11:25

Nonstop15h 35m

$2,166

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 18/2

20:25-07:00

Nonstop17h 35m

Sydney Kingsford Smith

Mon 9/3

11:50-11:25

Nonstop15h 35m

$2,166

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 2/3

20:25-07:00

Nonstop17h 35m

Sydney Kingsford Smith

Mon 16/3

11:50-11:25

Nonstop15h 35m

$2,166

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 15/2

15:22-09:15

1 stop24h 53m

Sydney Kingsford Smith

Sun 1/3

11:50-10:25

Nonstop15h 35m

$2,172

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 11/3

18:50-09:05

1 stop22h 15m

Sydney Kingsford Smith

Tue 24/3

11:50-11:25

Nonstop15h 35m

$2,172

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 10/3

11:44-06:05

2 stops26h 21m

Sydney Kingsford Smith

Tue 24/3

09:40-16:36

2 stops22h 56m

$2,194

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Wed 11/2

05:45-08:30

2 stops33h 45m

Sydney Kingsford Smith

Sun 1/3

10:40-22:28

2 stops28h 48m

$2,194

Flights are sorted by cheapest return flights first.

Deals found on 22/12

Showing 1-10 of 32 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 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 19 December 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, December is the cheapest month in which you can book a flight from Houston to Sydney (average of $669). Flying from Houston to Sydney in January is currently the most expensive (average of $1,267). 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 23 December 2025.

One of the essential ways to save on airfare from Houston to Sydney is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 34% on airfare.

How much does it cost for a return flight 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 23 December 2025.
Get a feel of what it's like to fly with Qantas Airways from Houston to Sydney by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
951 reviews
Check prices

Crew

8.1

Boarding

7.7

Entertainment

7.2

Comfort

7.5

Overall

7.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
Qantas Airways
7.5
Good
951 reviews
Qantas Airways
7.5
Good
951 reviews
Check prices

Crew

8.1

Boarding

7.7

Entertainment

7.2

Comfort

7.5

Overall

7.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.

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. 1 airline has 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 17h 30m. Houston and Sydney are separated by a distance of 13826 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What is the cheapest airline to fly from Houston to Sydney round-trip?

    Our cheapest airline available from Houston to Sydney is Qantas Airways. Our recent data shows that you can find tickets from as low as $669 on this airline. Qantas Airways is currently priced 59% below the average price you’ll pay for this route.

  • 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, December is the cheapest month in which you can book a flight from Houston to Sydney (average of $669). Flying from Houston to Sydney in January is currently the most expensive (average of $1,267). 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
Katoomba
Penrith
Terrigal
Manly
Randwick
Lithgow
Coogee
Leura
Cronulla
Bondi Beach

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.

Top airline flying from Houston to Sydney

Discover the top airline 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 647,157 searches. Data last updated 23 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$691Average$1,267FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights

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.

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