How long is the flight from Houston to Sydney?

Departing from Houston to Sydney will take you 20h 55m. 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.

In terms of precipitation, rainfall in Sydney ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

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.

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.

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.

$718+ Cheap Flights from Houston to Sydney

Cheap flight deals from Houston to Sydney

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 4 September 2026.

Mon 19/1005:05 -

3 stops39h 45m

Tue 27/1014:00 -

3 stops31h 10m

Deal found 3/9$1,265

Mon 5/1022:09 -

1 stop41h 21m

Tue 10/1114:00 -

2 stops38h 32m

Deal found 3/9$1,444

Mon 9/1114:49 -

3 stops28h 46m

Mon 16/1114:00 -

3 stops32h 10m

Deal found 4/9$1,461

Sat 7/1121:50 -

1 stop39h 35m

Mon 16/1114:00 -

2 stops38h 32m

Deal found 4/9$1,464

Mon 26/1022:59 -

1 stop39h 26m

Wed 11/1114:00 -

2 stops38h 32m

Deal found 3/9$1,486

Fri 30/1022:59 -

1 stop39h 26m

Fri 6/1114:00 -

2 stops38h 32m

Deal found 1/9$1,487

Sat 7/1121:50 -

1 stop39h 35m

Sun 15/1114:00 -

2 stops38h 32m

Deal found 4/9$1,526

Sun 20/920:18 -

2 stops42h 52m

Wed 11/1108:45 -

2 stops27h 54m

Deal found 2/9$2,120

Sun 1/1109:58 -

2 stops41h 52m

Wed 11/1122:20 -

2 stops41h 56m

Deal found 31/8$2,122

Sun 25/1020:24 -

2 stops32h 26m

Mon 9/1108:45 -

2 stops27h 54m

Deal found 1/9$2,126

Sun 20/920:18 -

2 stops42h 52m

Sat 14/1122:20 -

2 stops38h 19m

Deal found 2/9$2,189

Sat 24/1017:06 -

2 stops35h 44m

Fri 20/1122:20 -

2 stops42h 09m

Deal found 30/8$2,191

Best flights from Houston to Sydney
Discover carefully curated flight deals from Houston to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Wed 17/220:01 -

2 stops42h 14m

Wed 17/308:45 -

2 stops30h 30m

Deal found 2/9$2,043

Mon 14/914:30 -

2 stops37h 40m

Fri 13/1121:35 -

2 stops38h 30m

Deal found 3/9$2,207

Tue 15/920:17 -

2 stops32h 53m

Sun 15/1122:20 -

2 stops42h 38m

Deal found 3/9$2,246

Mon 1/216:25 -

1 stop20h 55m

Mon 15/209:20 -

Nonstop15h 40m

Deal found 3/9$2,574

Sun 8/1106:09 -

2 stops33h 21m

Sat 21/1110:40 -

2 stops39h 52m

Deal found 30/8$2,665

Thu 24/1211:51 -

1 stop26h 04m

Thu 7/106:55 -

2 stops23h 21m

Deal found 31/8$2,829

Tue 15/909:33 -

2 stops29h 47m

Sat 14/1109:25 -

2 stops45h 12m

Deal found 3/9$3,316

Sun 1/1109:58 -

2 stops41h 52m

Wed 11/1122:20 -

2 stops41h 56m

Deal found 31/8$2,122

Sat 24/1017:06 -

2 stops35h 44m

Fri 20/1122:20 -

2 stops42h 09m

Deal found 31/8$2,191

Wed 11/1114:50 -

1 stop25h 15m

Sat 28/1109:20 -

Nonstop15h 40m

Deal found 30/8$2,644

Sat 3/1006:05 -

2 stops38h 40m

Mon 12/1022:20 -

2 stops41h 39m

Deal found 4/9$2,191

Sat 3/1011:08 -

2 stops28h 42m

Mon 12/1010:15 -

2 stops28h 48m

Deal found 4/9$2,690

Tue 15/906:00 -

2 stops33h 50m

Mon 21/909:15 -

2 stops28h 24m

Deal found 2/9$2,898

Tue 15/916:30 -

1 stop23h 30m

Mon 16/1109:20 -

Nonstop15h 40m

Deal found 3/9$2,992

Mon 14/909:33 -

2 stops29h 47m

Fri 13/1109:25 -

2 stops42h 40m

Deal found 3/9$3,316

Mon 16/1120:09 -

2 stops31h 41m

Sat 28/1108:45 -

2 stops31h 44m

Deal found 1/9$2,605

Tue 15/906:04 -

2 stops33h 16m

Fri 13/1109:25 -

2 stops42h 40m

Deal found 3/9$3,316

Tue 15/909:33 -

2 stops29h 47m

Thu 12/1109:25 -

2 stops42h 40m

Deal found 3/9$3,316

Mon 21/1222:30 -

1 stop38h 50m

Thu 7/111:50 -

2 stops22h 06m

Deal found 2/9$3,408

Fri 11/1207:00 -

2 stops43h 45m

Thu 7/121:40 -

2 stops36h 23m

Deal found 31/8$3,011

Thu 24/1214:42 -

1 stop22h 38m

Fri 1/109:15 -

Nonstop15h 40m

Deal found 1/9$3,478

Tue 12/120:25 -

Nonstop17h 35m

Tue 13/409:30 -

1 stop19h 45m

Deal found 2/9$3,531

Find flight deals from Houston to Sydney

Round-trip from	$1,265
One-way from	$718
Popular in	July
Cheapest in	November
Average price	$2,172

19/10-27/10
6 total stops
70h 55m total
Houston to Sydney

Search Deals

21/10-31/12
2 total stops
32h 10m total
Houston to Sydney

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($415 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($72 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Sat 26/9

10:30-07:30

2 stops30h 00m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$857

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Fri 13/11

22:59-06:25

1 stop38h 26m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$867

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Fri 2/10

07:00-08:00

2 stops34h 00m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$936

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 19/10

11:36-06:55

3 stops51h 19m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,147

HoustonSydney

HOU Houston Hobby - SYD Sydney Kingsford Smith

HOUSYD

Houston Hobby

Sun 17/1

19:18-09:35

2 stops45h 17m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,443

Fastest return journey

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Thu 5/11

20:25-07:00

Nonstop17h 35m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,543

HoustonSydney

HOU Houston Hobby - SYD Sydney Kingsford Smith

HOUSYD

Houston Hobby

Thu 22/10

11:12-07:50

2 stops28h 38m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,549

HoustonSydney

HOU Houston Hobby - SYD Sydney Kingsford Smith

HOUSYD

Houston Hobby

Tue 20/10

11:12-07:50

2 stops28h 38m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,595

HoustonSydney

HOU Houston Hobby - SYD Sydney Kingsford Smith

HOUSYD

Houston Hobby

Fri 4/12

17:02-06:55

1 stop20h 53m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,678

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Fri 2/10

19:41-06:55

1 stop20h 14m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,685

Flights are sorted by cheapest return flights first.

Deals found on 30/8

Showing 1-10 of 41 resultsSorted by cheapest first

...

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.

HO1-SYD

IAH-SYD

HOU-SYD

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

HO1-SYD

IAH-SYD

HOU-SYD

What is the cheapest month to book a flight from Houston to Sydney?

Currently, November is the cheapest month in which you can book a flight from Houston to Sydney (average of $1,512). Flying from Houston to Sydney in July is currently the most expensive (average of $2,603). 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?

Airfare is below average for this route at the moment.

Houston to Sydney flights typically cost between $1,668 and $2,374 in October.
The cheapest return price found within the last 5 days was $1,265 on Multiple Airlines (19 Oct–27 Oct).

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

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.

Related info for your journey

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 20h 55m. 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.
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, November is the cheapest month in which you can book a flight from Houston to Sydney (average of $1,512). Flying from Houston to Sydney in July is currently the most expensive (average of $2,603). 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

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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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Cheap flights from Houston to Sydney from $718

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Houston to Sydney

Cheapest flights from Houston to SydneyExplore 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 4 September 2026.

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 4 September 2026.

Best flights from Houston to SydneyDiscover carefully curated flight deals from Houston to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Discover carefully curated flight deals from Houston to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Direct flights from Houston to SydneyExplore direct flight options from Houston to Sydney based on user searches, and compare prices and availability for your desired travel dates. Data last updated 4 September 2026.

Explore direct flight options from Houston to Sydney based on user searches, and compare prices and availability for your desired travel dates. Data last updated 4 September 2026.

Last-minute flights from Houston to SydneyDiscover last-minute flight deals from Houston to Sydney. Data last updated 4 September 2026 and is based on user searches.

Discover last-minute flight deals from Houston to Sydney. Data last updated 4 September 2026 and is based on user searches.

One-way flights from Houston to SydneySearch for one-way flight options from Houston to Sydney. Find affordable one-way fares based on user searches. Data last updated 4 September 2026.

Search for one-way flight options from Houston to Sydney. Find affordable one-way fares based on user searches. Data last updated 4 September 2026.

Find flight deals from Houston to Sydney

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One-way from

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

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.

Cheapflights Insights

What is the cheapest month to book a flight from Houston to Sydney?

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

Airfare is below average for this route at the moment.

Houston to Sydney flights typically cost between $1,668 and $2,374 in October.The cheapest return price found within the last 5 days was $1,265 on Multiple Airlines (19 Oct–27 Oct).

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

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.

Related info for your journey

What airport do you fly into for flights to Sydney from Houston?

How long is the flight from Houston to Sydney?

Can I find deals for flights from Houston to Sydney that include hotel bookings?

How can I find direct flights from Houston to Sydney?

Can I find deals for business class flights from Houston to Sydney?

What is the cheapest month to book a flight from Houston to Sydney?

Travelling to a place near Sydney?

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Search flights from Houston to Sydney by cabin class

Find flights from Houston to Sydney, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Houston and Sydney flights

Browse other Houston and Sydney flight options. Last updated on 4 September 2026.

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

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

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

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

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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 4 September 2026.

Best flights from Houston to Sydney
Discover carefully curated flight deals from Houston to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Direct flights from Houston to Sydney
Explore direct flight options from Houston to Sydney based on user searches, and compare prices and availability for your desired travel dates. Data last updated 4 September 2026.

Last-minute flights from Houston to Sydney
Discover last-minute flight deals from Houston to Sydney. Data last updated 4 September 2026 and is based on user searches.

One-way flights from Houston to Sydney
Search for one-way flight options from Houston to Sydney. Find affordable one-way fares based on user searches. Data last updated 4 September 2026.

Houston to Sydney flights typically cost between $1,668 and $2,374 in October.
The cheapest return price found within the last 5 days was $1,265 on Multiple Airlines (19 Oct–27 Oct).