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

Delta is the most popular carrier 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.

$874 Cheap Flights from Houston to Sydney in 2026

Q: 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 $2,258 to $3,011. The lowest price recently found on this route was $1,482.

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.

16:02 - 11:50

IAH

SYD

28h 48m

2 stops

13:15 - 23:56

SYD

IAH

25h 41m

2 stops

$1,482Multiple Airlines

Wed, 12 Aug - Wed, 19 Aug

16:02 - 11:50

IAH

SYD

28h 48m

2 stops

13:15 - 21:03

SYD

IAH

46h 48m

3 stops

$1,564Multiple Airlines

Wed, 12 Aug - Wed, 19 Aug

16:02 - 11:50

IAH

SYD

28h 48m

2 stops

13:15 - 23:56

SYD

IAH

25h 41m

2 stops

$1,565Multiple Airlines

Tue, 18 Aug - Tue, 25 Aug

15:52 - 11:50

IAH

SYD

28h 58m

2 stops

13:15 - 23:56

SYD

IAH

25h 41m

2 stops

$1,647Multiple Airlines

Sun, 23 Aug - Sun, 6 Sep

15:52 - 11:50

IAH

SYD

28h 58m

2 stops

13:15 - 23:56

SYD

IAH

25h 41m

2 stops

$1,665Multiple Airlines

Sun, 23 Aug - Mon, 7 Sep

17:06 - 06:55

HOU

SYD

21h 49m

1 stop

07:05 - 13:33

SYD

HOU

22h 28m

2 stops

$2,588Qantas Airways

Tue, 6 Oct - Tue, 27 Oct

17:06 - 06:55

HOU

SYD

21h 49m

1 stop

13:05 - 16:36

SYD

HOU

19h 31m

1 stop

$2,632Qantas Airways

Mon, 19 Oct - Mon, 26 Oct

18:14 - 07:05

HOU

SYD

21h 51m

2 stops

12:00 - 15:26

SYD

HOU

18h 26m

1 stop

$2,651American Airlines

Sun, 23 Aug - Sun, 6 Sep

18:14 - 07:05

HOU

SYD

21h 51m

2 stops

09:10 - 15:26

SYD

HOU

21h 16m

2 stops

$2,653American Airlines

Sun, 23 Aug - Sun, 6 Sep

20:14 - 06:55

HOU

SYD

19h 41m

1 stop

09:10 - 15:43

SYD

HOU

21h 33m

2 stops

$2,660American Airlines

Sun, 30 Aug - Mon, 14 Sep

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Qantas Airways flights from Houston to Sydney

Our best Qantas Airways deals on Houston to Sydney flight tickets

Qantas Airways

6 Oct

HOU17:06Houston Hobby

21h 49m

1 stop

SYD06:55Sydney Kingsford Smith

27 Oct

SYD07:05Sydney Kingsford Smith

22h 28m

2 stops

HOU13:33Houston Hobby

$2,588

Qantas Airways

19 Oct

HOU14:08Houston Hobby

24h 47m

1 stop

SYD06:55Sydney Kingsford Smith

28 Oct

SYD13:05Sydney Kingsford Smith

19h 31m

1 stop

HOU16:36Houston Hobby

$2,632

Qantas Airways

16 Nov

HOU16:25Houston Hobby

21h 30m

1 stop

SYD06:55Sydney Kingsford Smith

28 Nov

SYD22:00Sydney Kingsford Smith

34h 54m

2 stops

HOU15:54Houston Hobby

$2,681

Delta flights from Houston to Sydney

Our best Delta deals on Houston to Sydney flight tickets

Delta

23 Aug

HOU13:13Houston Hobby

26h 37m

2 stops

SYD06:50Sydney Kingsford Smith

7 Sept

SYD09:15Sydney Kingsford Smith

39h 51m

2 stops

HOU10:06Houston Hobby

$2,679

Delta

16 Nov

HOU06:00Houston Hobby

33h 30m

2 stops

SYD08:30Sydney Kingsford Smith

30 Nov

SYD10:40Sydney Kingsford Smith

39h 46m

2 stops

HOU09:26Houston Hobby

$2,680

Delta

16 Nov

HOU06:00Houston Hobby

33h 30m

2 stops

SYD08:30Sydney Kingsford Smith

29 Nov

SYD10:40Sydney Kingsford Smith

39h 46m

2 stops

HOU09:26Houston Hobby

$2,723

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 12/8

16:02-11:50

2 stops28h 48m

Sydney Kingsford Smith

Wed 19/8

13:15-23:56

2 stops25h 41m

$1,482

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 12/8

16:02-11:50

2 stops28h 48m

Sydney Kingsford Smith

Wed 19/8

13:15-21:03

3 stops46h 48m

$1,564

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 18/8

16:02-11:50

2 stops28h 48m

Sydney Kingsford Smith

Tue 25/8

13:15-23:56

2 stops25h 41m

$1,565

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 23/8

15:52-11:50

2 stops28h 58m

Sydney Kingsford Smith

Sun 6/9

13:15-23:56

2 stops25h 41m

$1,647

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 23/8

15:52-11:50

2 stops28h 58m

Sydney Kingsford Smith

Mon 7/9

13:15-23:56

2 stops25h 41m

$1,665

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 6/10

17:06-06:55

1 stop21h 49m

Sydney Kingsford Smith

Tue 27/10

07:05-13:33

2 stops22h 28m

$2,588

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 19/10

17:06-06:55

1 stop21h 49m

Sydney Kingsford Smith

Mon 26/10

13:05-16:36

1 stop19h 31m

$2,632

Fastest return journey

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Sun 23/8

18:14-07:05

2 stops21h 51m

Sydney Kingsford Smith

Sun 6/9

12:00-15:26

1 stop18h 26m

$2,651

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Sun 23/8

18:14-07:05

2 stops21h 51m

Sydney Kingsford Smith

Sun 6/9

09:10-15:26

2 stops21h 16m

$2,653

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Sun 30/8

20:14-06:55

1 stop19h 41m

Sydney Kingsford Smith

Mon 14/9

09:10-15:43

2 stops21h 33m

$2,660

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?

What is the cheapest month to fly to Sydney?

The month of December is, on average, the cheapest month to fly to Sydney from Houston, with most prices found around $102. If you aren’t able to travel to Sydney during the month of December, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $197.

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 $2,028 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 $1,456 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

Fastest flight time	17h 35m
Direct flights	Every day
Airports in Sydney	1 airport

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 use momondo?

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.