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

Delta, American Airlines, and Cathay Pacific are the most popular carriers operating from Houston to Sydney Kingsford Smith

How many flights depart from Houston to Sydney on average per week?

As of February 2026, there are 21 flights per week flying from Houston to Sydney. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

How many flights depart from Houston to Sydney on average per day?

As of February 2026, 3 flights take off from Houston and land in Sydney each day. The most common flight departure time for this route is 20:00, with 100% of daily flights taking off in the evening.

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.

$643 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 typical for flights on this route. Typical prices usually range from $1,180 to $2,108. The lowest price recently found on this route was $1,269.

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Find the cheapest flights from Houston to Sydney

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16:22 - 12:35

IAH

SYD

28h 13m

2 stops

13:15 - 00:11

SYD

IAH

25h 56m

2 stops

$1,269Multiple Airlines

Tue, 17 Mar - Tue, 7 Apr

16:35 - 11:50

IAH

SYD

28h 15m

2 stops

13:15 - 00:35

SYD

IAH

26h 20m

2 stops

$1,270Multiple Airlines

Thu, 23 Apr - Sun, 3 May

16:35 - 11:50

IAH

SYD

28h 15m

2 stops

13:15 - 00:35

SYD

IAH

26h 20m

2 stops

$1,276Multiple Airlines

Thu, 23 Apr - Sun, 3 May

21:55 - 10:40

IAH

SYD

21h 45m

1 stop

11:55 - 16:25

SYD

IAH

19h 30m

1 stop

$1,419Air New Zealand

Mon, 3 Aug - Mon, 17 Aug

21:55 - 08:45

IAH

SYD

19h 50m

1 stop

09:55 - 16:25

SYD

IAH

21h 30m

1 stop

$1,423Air New Zealand

Mon, 1 Jun - Mon, 3 Aug

16:18 - 07:05

HOU

SYD

23h 47m

2 stops

09:10 - 15:49

SYD

HOU

21h 39m

2 stops

$2,051American Airlines

Mon, 4 May - Wed, 13 May

20:21 - 06:55

HOU

SYD

19h 34m

1 stop

09:10 - 15:49

SYD

HOU

21h 39m

2 stops

$2,061American Airlines

Mon, 4 May - Wed, 13 May

06:00 - 06:05

HOU

SYD

32h 05m

2 stops

09:40 - 22:42

SYD

HOU

29h 02m

2 stops

$2,077Delta

Tue, 10 Mar - Tue, 24 Mar

13:06 - 06:50

HOU

SYD

26h 44m

2 stops

09:15 - 09:20

SYD

HOU

39h 05m

2 stops

$2,147Delta

Fri, 29 May - Mon, 8 Jun

17:22 - 06:05

HOU

SYD

44h 43m

2 stops

13:15 - 10:23

SYD

HOU

37h 08m

2 stops

$2,175Vietnam Airlines

Fri, 13 Mar - Mon, 23 Mar

Air New Zealand flights from Houston to Sydney

Our best Air New Zealand deals on Houston to Sydney flight tickets

Air New Zealand

3 Aug

IAH21:55Houston George Bush Intcntl

21h 45m

1 stop

SYD10:40Sydney Kingsford Smith

17 Aug

SYD11:55Sydney Kingsford Smith

19h 30m

1 stop

IAH16:25Houston George Bush Intcntl

$1,419

Air New Zealand

1 June

IAH21:55Houston George Bush Intcntl

19h 50m

1 stop

SYD08:45Sydney Kingsford Smith

3 Aug

SYD09:55Sydney Kingsford Smith

21h 30m

1 stop

IAH16:25Houston George Bush Intcntl

$1,423

Air New Zealand

3 Aug

IAH15:30Houston George Bush Intcntl

26h 15m

2 stops

SYD08:45Sydney Kingsford Smith

17 Aug

SYD11:55Sydney Kingsford Smith

19h 30m

1 stop

IAH16:25Houston George Bush Intcntl

$1,425

Qantas Airways flights from Houston to Sydney

Our best Qantas Airways deals on Houston to Sydney flight tickets

Qantas Airways

23 June

HOU20:23Houston Hobby

19h 32m

1 stop

SYD06:55Sydney Kingsford Smith

1 July

SYD12:00Sydney Kingsford Smith

21h 09m

1 stop

HOU18:09Houston Hobby

$2,713

Qantas Airways

3 Aug

HOU20:22Houston Hobby

19h 33m

1 stop

SYD06:55Sydney Kingsford Smith

17 Aug

SYD12:00Sydney Kingsford Smith

21h 00m

1 stop

HOU18:00Houston Hobby

$2,750

Qantas Airways

16 Aug

HOU20:25Houston Hobby

19h 30m

1 stop

SYD06:55Sydney Kingsford Smith

29 Aug

SYD12:00Sydney Kingsford Smith

21h 00m

1 stop

HOU18:00Houston Hobby

$2,802

Fly from

Fly to

Route

Depart

Return

Price

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 17/3

16:22-12:35

2 stops28h 13m

Sydney Kingsford Smith

Tue 7/4

13:15-00:11

2 stops25h 56m

$1,269

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 23/4

16:35-11:50

2 stops28h 15m

Sydney Kingsford Smith

Sun 3/5

13:15-00:35

2 stops26h 20m

$1,270

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 23/4

16:35-11:50

2 stops28h 15m

Sydney Kingsford Smith

Sun 3/5

13:15-00:35

2 stops26h 20m

$1,276

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 3/8

21:55-10:40

1 stop21h 45m

Sydney Kingsford Smith

Mon 17/8

11:55-16:25

1 stop19h 30m

$1,419

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 1/6

21:55-08:45

1 stop19h 50m

Sydney Kingsford Smith

Mon 3/8

09:55-16:25

1 stop21h 30m

$1,423

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 4/5

16:18-07:05

2 stops23h 47m

Sydney Kingsford Smith

Wed 13/5

09:10-15:49

2 stops21h 39m

$2,051

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 4/5

20:21-06:55

1 stop19h 34m

Sydney Kingsford Smith

Wed 13/5

09:10-15:49

2 stops21h 39m

$2,061

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 10/3

06:00-06:05

2 stops32h 05m

Sydney Kingsford Smith

Tue 24/3

09:40-22:42

2 stops29h 02m

$2,077

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Fri 29/5

13:06-06:50

2 stops26h 44m

Sydney Kingsford Smith

Mon 8/6

09:15-09:20

2 stops39h 05m

$2,147

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Fri 13/3

17:22-06:05

2 stops44h 43m

Sydney Kingsford Smith

Mon 23/3

13:15-10:23

2 stops37h 08m

$2,175

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

Other information

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 March is, on average, the cheapest month to fly to Sydney from Houston, with most prices found around $1,263. If you aren’t able to travel to Sydney during the month of March, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $1,456.

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 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 $1,811 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 $1,391 on momondo.

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

There is only 1 cabin class available to choose from on Houston to Sydney Kingsford Smith 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 30m
Direct flights	Every day
Airports in Sydney	1 airport

The fastest flight from Houston to Sydney takes 17h 30m

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).

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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 30m 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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Wollongong

Terrigal

Penrith

Katoomba

Lithgow

Manly

Leura

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Cronulla

Randwick

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Newport

Swansea

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

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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.