What is the cheapest airline that flies from Houston to Sydney Kingsford Smith?

United Airlines and Delta are the most popular carriers operating from Houston to Sydney Kingsford Smith

When did momondo last update prices for flights from Houston to Sydney Kingsford Smith Airport?

Prices for flights from Houston to Sydney Kingsford Smith Airport were last updated today.

How old do you have to be to fly from Houston to Sydney Kingsford Smith Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Houston to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$716 Cheap Flights from Houston to Sydney in 2026

Find the cheapest flights from Houston to Sydney

Return

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

05:05 - 12:50IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

39h 45m3 stops Las Vegas Harry Reid Intl Los Angeles Los Angeles Nadi

14:00 - 05:10SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

31h 10m3 stops Nadi Los Angeles Los Angeles Las Vegas Harry Reid Intl

$1,262Multiple Airlines

Mon, 19 Oct - Tue, 27 Oct

22:59 - 06:25IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

39h 26m1 stop Los Angeles Los Angeles

14:00 - 11:32SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

38h 32m2 stops Nadi Los Angeles Los Angeles

$1,324Multiple Airlines

Sat, 24 Oct - Thu, 5 Nov

22:59 - 06:25IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

39h 26m1 stop Los Angeles Los Angeles

14:00 - 11:32SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

38h 32m2 stops Nadi Los Angeles Los Angeles

$1,331Multiple Airlines

Sat, 24 Oct - Tue, 3 Nov

21:50 - 06:25IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

40h 35m1 stop Los Angeles Los Angeles

14:00 - 11:32SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

38h 32m2 stops Nadi Los Angeles Los Angeles

$1,393Multiple Airlines

Tue, 27 Oct - Thu, 5 Nov

22:59 - 06:25IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

39h 26m1 stop Los Angeles Los Angeles

14:00 - 11:32SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

38h 32m2 stops Nadi Los Angeles Los Angeles

$1,400Multiple Airlines

Sat, 24 Oct - Fri, 6 Nov

22:59 - 06:25IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

39h 26m1 stop Los Angeles Los Angeles

14:00 - 11:32SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

38h 32m2 stops Nadi Los Angeles Los Angeles

$1,409Multiple Airlines

Mon, 26 Oct - Thu, 5 Nov

22:59 - 07:30IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

40h 31m1 stop Los Angeles Los Angeles

14:00 - 11:32SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

37h 32m2 stops Nadi Los Angeles Los Angeles

$1,411Multiple Airlines

Mon, 19 Oct - Tue, 27 Oct

22:59 - 07:30IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

40h 31m1 stop Los Angeles Los Angeles

14:00 - 11:32SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

37h 32m2 stops Nadi Los Angeles Los Angeles

$1,413Multiple Airlines

Mon, 19 Oct - Tue, 27 Oct

22:59 - 06:25IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

39h 26m1 stop Los Angeles Los Angeles

14:00 - 11:32SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

38h 32m2 stops Nadi Los Angeles Los Angeles

$1,416Multiple Airlines

Mon, 26 Oct - Tue, 3 Nov

22:59 - 07:30IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

40h 31m1 stop Los Angeles Los Angeles

14:00 - 11:32SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

37h 32m2 stops Nadi Los Angeles Los Angeles

$1,421Multiple Airlines

Mon, 19 Oct - Tue, 27 Oct

Cheap last-minute flights

Enter your travel dates to find the best prices.

16:02 - 07:30IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

24h 28m1 stop Los Angeles Los Angeles

14:00 - 19:49SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

22h 49m2 stops Nadi Los Angeles Los Angeles

$1,857Multiple Airlines

Tue, 8 Sep - Thu, 12 Nov

22:09 - 07:30IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

42h 21m1 stop Los Angeles Los Angeles

06:25 - 14:15SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

24h 50m1 stop Auckland Intl

$1,912Multiple Airlines

Wed, 9 Sep - Tue, 17 Nov

15:52 - 07:30IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

24h 38m1 stop Los Angeles Los Angeles

14:00 - 19:49SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

22h 49m2 stops Nadi Los Angeles Los Angeles

$1,914Multiple Airlines

Mon, 7 Sep - Thu, 12 Nov

22:09 - 07:30IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

42h 21m1 stop Los Angeles Los Angeles

06:25 - 14:15SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

24h 50m1 stop Auckland Intl

$1,924Multiple Airlines

Thu, 10 Sep - Tue, 17 Nov

22:09 - 07:30IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

42h 21m1 stop Los Angeles Los Angeles

11:00 - 14:15SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

20h 15m1 stop Auckland Intl

$1,935Multiple Airlines

Wed, 9 Sep - Mon, 16 Nov

22:09 - 07:30IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

42h 21m1 stop Los Angeles Los Angeles

11:00 - 14:15SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

20h 15m1 stop Auckland Intl

$1,936Multiple Airlines

Thu, 10 Sep - Thu, 12 Nov

22:09 - 07:30IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

42h 21m1 stop Los Angeles Los Angeles

06:25 - 14:15SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

24h 50m1 stop Auckland Intl

$1,939Multiple Airlines

Wed, 9 Sep - Sun, 15 Nov

22:09 - 07:30IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

42h 21m1 stop Los Angeles Los Angeles

06:25 - 14:15SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

24h 50m1 stop Auckland Intl

$1,942Multiple Airlines

Thu, 10 Sep - Sun, 8 Nov

22:09 - 07:30IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

42h 21m1 stop Los Angeles Los Angeles

11:00 - 14:15SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

20h 15m1 stop Auckland Intl

$1,946Multiple Airlines

Thu, 10 Sep - Thu, 12 Nov

22:09 - 07:30IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

42h 21m1 stop Los Angeles Los Angeles

11:00 - 14:15SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

20h 15m1 stop Auckland Intl

$1,947Multiple Airlines

Wed, 9 Sep - Thu, 12 Nov

Cheap direct flights

Enter your travel dates to find the best prices.

20:25 - 07:00IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mdirect

09:20 - 08:00SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mdirect

$2,561United Airlines

Tue, 23 Feb - Tue, 9 Mar

21:25 - 07:00IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mdirect

09:20 - 08:00SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mdirect

$2,562United Airlines

Sun, 25 Oct - Mon, 2 Nov

21:25 - 07:00IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mdirect

09:20 - 08:00SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mdirect

$2,563United Airlines

Sun, 25 Oct - Mon, 9 Nov

21:25 - 07:00IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mdirect

09:20 - 08:00SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mdirect

$2,567United Airlines

Sun, 25 Oct - Mon, 9 Nov

21:25 - 07:00IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mdirect

09:20 - 08:00SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mdirect

$2,569United Airlines

Sun, 25 Oct - Mon, 9 Nov

20:25 - 07:00IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mdirect

09:20 - 08:00SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mdirect

$2,630United Airlines

Wed, 11 Nov - Sat, 28 Nov

20:25 - 07:00IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mdirect

09:15 - 07:55SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mdirect

$2,631United Airlines

Wed, 11 Nov - Sun, 29 Nov

20:25 - 07:00IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mdirect

09:20 - 08:00SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mdirect

$2,699United Airlines

Fri, 6 Nov - Thu, 19 Nov

21:25 - 07:00IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mdirect

09:15 - 07:55SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mdirect

$2,701United Airlines

Sat, 24 Oct - Fri, 20 Nov

20:25 - 07:00IAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mdirect

09:20 - 08:00SYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mdirect

$2,734United Airlines

Sun, 24 Jan - Sat, 6 Feb

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Cathay Pacific flights from Houston to Sydney

Our best Cathay Pacific deals on Houston to Sydney flight tickets

Cathay Pacific

25 Oct

HOU20:24Houston Hobby

32h 26m

2 stops

SYD20:50Sydney Kingsford Smith

9 Nov

SYD22:20Sydney Kingsford Smith

41h 14m

2 stops

HOU22:34Houston Hobby

$2,182

Cathay Pacific

27 Sept

HOU18:19Houston Hobby

34h 51m

2 stops

SYD20:10Sydney Kingsford Smith

4 Oct

SYD22:20Sydney Kingsford Smith

41h 29m

2 stops

HOU23:49Houston Hobby

$2,383

Cathay Pacific

18 Sept

HOU18:19Houston Hobby

44h 51m

2 stops

SYD06:10Sydney Kingsford Smith

10 Oct

SYD22:20Sydney Kingsford Smith

52h 51m

2 stops

HOU11:11Houston Hobby

$2,468

Qantas Airways flights from Houston to Sydney

Our best Qantas Airways deals on Houston to Sydney flight tickets

Qantas Airways

7 Dec

HOU17:02Houston Hobby

20h 53m

1 stop

SYD06:55Sydney Kingsford Smith

21 Dec

SYD14:05Sydney Kingsford Smith

19h 25m

1 stop

HOU16:30Houston Hobby

$2,545

Qantas Airways

1 Feb

HOU17:05Houston Hobby

20h 50m

1 stop

SYD06:55Sydney Kingsford Smith

15 Feb

SYD14:05Sydney Kingsford Smith

19h 26m

1 stop

HOU16:31Houston Hobby

$2,576

Qantas Airways

1 Feb

HOU17:05Houston Hobby

20h 50m

1 stop

SYD06:55Sydney Kingsford Smith

15 Feb

SYD06:05Sydney Kingsford Smith

24h 29m

2 stops

HOU13:34Houston Hobby

$2,597

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 19/10

05:05-12:50

3 stops39h 45m

Sydney Kingsford Smith

Tue 27/10

14:00-05:10

3 stops31h 10m

$1,262

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Sat 24/10

22:59-06:25

1 stop39h 26m

Sydney Kingsford Smith

Thu 5/11

14:00-11:32

2 stops38h 32m

$1,324

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Sat 24/10

22:59-06:25

1 stop39h 26m

Sydney Kingsford Smith

Tue 3/11

14:00-11:32

2 stops38h 32m

$1,331

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Tue 27/10

21:50-06:25

1 stop40h 35m

Sydney Kingsford Smith

Thu 5/11

14:00-11:32

2 stops38h 32m

$1,393

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Sat 24/10

22:59-06:25

1 stop39h 26m

Sydney Kingsford Smith

Fri 6/11

14:00-11:32

2 stops38h 32m

$1,400

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 26/10

22:59-06:25

1 stop39h 26m

Sydney Kingsford Smith

Thu 5/11

14:00-11:32

2 stops38h 32m

$1,409

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 19/10

22:59-07:30

1 stop40h 31m

Sydney Kingsford Smith

Tue 27/10

14:00-11:32

2 stops37h 32m

$1,411

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 19/10

22:59-07:30

1 stop40h 31m

Sydney Kingsford Smith

Tue 27/10

14:00-11:32

2 stops37h 32m

$1,413

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 26/10

22:59-06:25

1 stop39h 26m

Sydney Kingsford Smith

Tue 3/11

14:00-11:32

2 stops38h 32m

$1,416

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 19/10

22:59-07:30

1 stop40h 31m

Sydney Kingsford Smith

Tue 27/10

14:00-11:32

2 stops37h 32m

$1,421

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Houston to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between Houston and Sydney?

Prices are currently low for flights on this route.

Typical prices usually range from $1,664 to $2,368.
The lowest price recently found on this route was $1,262.

What is the cheapest month to fly to Sydney?

The month of November is, on average, the cheapest month to fly to Sydney from Houston, with most prices found around $1,511. If you aren’t able to travel to Sydney during the month of November, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $1,775.

What is the cheapest Houston to Sydney Kingsford Smith flight route?

Fly from Houston George Bush Intcntl to Sydney Kingsford Smith for the best Houston - Sydney Kingsford Smith flight prices

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

You are more likely to see cheaper flights to Sydney from Houston when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $2,044 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Houston for as low as $1,403 on momondo.

What cabin class options are available on Houston to Sydney flights?

There are 2 cabin classes available to choose from on Houston to Sydney flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Houston to Sydney flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston to Sydney

Best price found	$716
Fastest flight time	17h 35m
Direct flights	Every day
Airports in Sydney	1 airport

The best one-way flight to Sydney from Houston in the past 72 hours is $716. The best return flight deal from Houston to Sydney found on momondo in the last 72 hours is $1,262.

The fastest flight from Houston to Sydney takes 17h 35m

Direct flights go from Houston to Sydney every day.

There is 1 airport in Sydney. From Houston there are direct flights to Sydney Kingsford Smith (SYD).

Search flight deals

Frequently asked questions about flying from Houston to Sydney

How far is Houston to Sydney Kingsford Smith by plane?
The distance between Houston and Sydney Kingsford Smith is about 13809.4 km. Typically, this will take 17h 35m by plane in normal conditions.
When did momondo last update prices for flights from Houston to Sydney Kingsford Smith Airport?
Prices for flights from Houston to Sydney Kingsford Smith Airport were last updated today.
How old do you have to be to fly from Houston to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Houston to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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Why should I use momondo to find a flight deal from Houston to Sydney?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Houston to Sydney. momondo saves you time and could save you money on your trip.

Can I find flights from Houston to Sydney with flexible booking policies on momondo?

All flight searches from Houston to Sydney on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Houston to Sydney?

momondo provides multiple filters to help you find the best flight to Sydney from Houston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Houston to Sydney right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Sydney, momondo offers a useful price alert feature which will track prices for flights to Sydney from Houston and alert you when they change.