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

Delta, American Airlines, and Qantas Airways 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.

$826 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 $1,957 to $2,770. The lowest price recently found on this route was $1,544.

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 - 07:30

IAH

SYD

24h 28m

1 stop

13:15 - 11:26

SYD

IAH

37h 11m

2 stops

$1,544Multiple Airlines

Sat, 5 Sep - Fri, 11 Sep

21:55 - 07:30

IAH

SYD

41h 35m

1 stop

14:15 - 11:26

SYD

IAH

37h 11m

2 stops

$1,556Multiple Airlines

Tue, 6 Oct - Fri, 16 Oct

21:59 - 07:30

IAH

SYD

41h 31m

1 stop

14:00 - 11:26

SYD

IAH

37h 26m

2 stops

$1,561Multiple Airlines

Thu, 15 Oct - Sun, 25 Oct

16:02 - 07:30

IAH

SYD

24h 28m

1 stop

13:15 - 23:56

SYD

IAH

25h 41m

2 stops

$1,565Multiple Airlines

Tue, 11 Aug - Tue, 25 Aug

16:02 - 07:30

IAH

SYD

24h 28m

1 stop

13:15 - 23:56

SYD

IAH

25h 41m

2 stops

$1,584Multiple Airlines

Tue, 18 Aug - Tue, 25 Aug

15:52 - 07:30

IAH

SYD

24h 38m

1 stop

13:15 - 23:56

SYD

IAH

25h 41m

2 stops

$1,586Multiple Airlines

Thu, 20 Aug - Thu, 27 Aug

21:59 - 07:30

IAH

SYD

41h 31m

1 stop

14:00 - 11:26

SYD

IAH

37h 26m

2 stops

$1,591Multiple Airlines

Thu, 15 Oct - Sun, 25 Oct

16:25 - 06:55

HOU

SYD

21h 30m

1 stop

14:05 - 16:11

SYD

HOU

19h 06m

1 stop

$2,613Qantas Airways

Mon, 9 Nov - Mon, 8 Feb

14:08 - 06:55

HOU

SYD

24h 47m

1 stop

13:05 - 16:36

SYD

HOU

19h 31m

1 stop

$2,615Qantas Airways

Mon, 19 Oct - Wed, 28 Oct

16:25 - 06:55

HOU

SYD

21h 30m

1 stop

11:20 - 16:11

SYD

HOU

21h 51m

2 stops

$2,631American Airlines

Mon, 9 Nov - Mon, 8 Feb

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Qantas Airways flights from Houston to Sydney

Our best Qantas Airways deals on Houston to Sydney flight tickets

Qantas Airways

9 Nov

HOU16:25Houston Hobby

21h 30m

1 stop

SYD06:55Sydney Kingsford Smith

8 Feb

SYD14:05Sydney Kingsford Smith

19h 06m

1 stop

HOU16:11Houston Hobby

$2,613

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

$2,615

Qantas Airways

16 Nov

HOU17:02Houston Hobby

20h 53m

1 stop

SYD06:55Sydney Kingsford Smith

29 Nov

SYD14:05Sydney Kingsford Smith

19h 32m

1 stop

HOU16:37Houston Hobby

$2,644

United Airlines flights from Houston to Sydney

Our best United Airlines deals on Houston to Sydney flight tickets

United Airlines

29 July

IAH12:58Houston George Bush Intcntl

26h 57m

1 stop

SYD06:55Sydney Kingsford Smith

5 Aug

SYD10:20Sydney Kingsford Smith

23h 07m

1 stop

IAH18:27Houston George Bush Intcntl

$2,095

United Airlines

4 Aug

IAH19:50Houston George Bush Intcntl

20h 10m

1 stop

SYD07:00Sydney Kingsford Smith

9 Aug

SYD10:20Sydney Kingsford Smith

23h 23m

2 stops

IAH18:43Houston George Bush Intcntl

$2,102

United Airlines

26 July

IAH22:03Houston George Bush Intcntl

41h 57m

1 stop

SYD07:00Sydney Kingsford Smith

5 Aug

SYD09:30Sydney Kingsford Smith

21h 10m

1 stop

IAH15:40Houston George Bush Intcntl

$2,111

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 5/9

16:02-07:30

1 stop24h 28m

Sydney Kingsford Smith

Fri 11/9

13:15-11:26

2 stops37h 11m

$1,544

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 6/10

21:55-07:30

1 stop41h 35m

Sydney Kingsford Smith

Fri 16/10

14:15-11:26

2 stops37h 11m

$1,556

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 15/10

21:59-07:30

1 stop41h 31m

Sydney Kingsford Smith

Sun 25/10

14:00-11:26

2 stops37h 26m

$1,561

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 11/8

16:02-07:30

1 stop24h 28m

Sydney Kingsford Smith

Tue 25/8

13:15-23:56

2 stops25h 41m

$1,565

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 18/8

16:02-07:30

1 stop24h 28m

Sydney Kingsford Smith

Tue 25/8

13:15-23:56

2 stops25h 41m

$1,584

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 20/8

15:52-07:30

1 stop24h 38m

Sydney Kingsford Smith

Thu 27/8

13:15-23:56

2 stops25h 41m

$1,586

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 15/10

21:59-07:30

1 stop41h 31m

Sydney Kingsford Smith

Sun 25/10

14:00-11:26

2 stops37h 26m

$1,591

Fastest return journey

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 9/11

16:25-06:55

1 stop21h 30m

Sydney Kingsford Smith

Mon 8/2

14:05-16:11

1 stop19h 06m

$2,613

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 19/10

14:08-06:55

1 stop24h 47m

Sydney Kingsford Smith

Wed 28/10

13:05-16:36

1 stop19h 31m

$2,615

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 9/11

16:25-06:55

1 stop21h 30m

Sydney Kingsford Smith

Mon 8/2

11:20-16:11

2 stops21h 51m

$2,631

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 November is, on average, the cheapest month to fly to Sydney from Houston, with most prices found around $1,588. 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 $1,618.

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 $2,100 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 $1,445 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.