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.

$673 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 $1,637 to $3,033. The lowest price recently found on this route was $1,326.

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 - 22:25

IAH

SYD

39h 23m

2 stops

13:15 - 23:56

SYD

IAH

25h 41m

2 stops

$1,326Multiple Airlines

Wed, 12 Aug - Wed, 19 Aug

16:02 - 22:25

IAH

SYD

39h 23m

2 stops

13:15 - 10:47

SYD

IAH

36h 32m

3 stops

$1,389Multiple Airlines

Wed, 12 Aug - Wed, 19 Aug

15:52 - 22:25

IAH

SYD

39h 33m

2 stops

13:15 - 11:56

SYD

IAH

37h 41m

3 stops

$1,543Multiple Airlines

Sun, 23 Aug - Mon, 7 Sep

16:02 - 11:50

IAH

SYD

28h 48m

2 stops

13:15 - 11:27

SYD

IAH

37h 12m

3 stops

$1,545Multiple Airlines

Wed, 29 Jul - Wed, 5 Aug

15:52 - 11:50

IAH

SYD

28h 58m

2 stops

13:15 - 23:56

SYD

IAH

25h 41m

2 stops

$1,546Multiple Airlines

Sun, 23 Aug - Mon, 7 Sep

12:46 - 11:50

HOU

SYD

32h 04m

2 stops

13:15 - 19:51

SYD

HOU

21h 36m

2 stops

$2,145Fiji Airways

Tue, 28 Jul - Tue, 11 Aug

16:14 - 11:50

HOU

SYD

28h 36m

2 stops

13:15 - 19:57

SYD

HOU

21h 42m

2 stops

$2,148Fiji Airways

Tue, 28 Jul - Tue, 4 Aug

16:25 - 06:55

HOU

SYD

21h 30m

1 stop

17:50 - 15:54

SYD

HOU

39h 04m

2 stops

$2,619Qantas Airways

Thu, 12 Nov - Sat, 21 Nov

16:18 - 06:55

HOU

SYD

23h 37m

1 stop

13:00 - 16:36

SYD

HOU

19h 36m

1 stop

$2,638Qantas Airways

Mon, 28 Sep - Tue, 6 Oct

18:14 - 07:05

HOU

SYD

21h 51m

2 stops

12:00 - 15:26

SYD

HOU

18h 26m

1 stop

$2,676American Airlines

Mon, 17 Aug - Sun, 30 Aug

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Qantas Airways flights from Houston to Sydney

Our best Qantas Airways deals on Houston to Sydney flight tickets

Qantas Airways

12 Nov

HOU16:25Houston Hobby

21h 30m

1 stop

SYD06:55Sydney Kingsford Smith

21 Nov

SYD17:50Sydney Kingsford Smith

39h 04m

2 stops

HOU15:54Houston Hobby

$2,619

Qantas Airways

28 Sept

HOU16:18Houston Hobby

23h 37m

1 stop

SYD06:55Sydney Kingsford Smith

6 Oct

SYD13:00Sydney Kingsford Smith

19h 36m

1 stop

HOU16:36Houston Hobby

$2,638

Qantas Airways

19 Nov

HOU16:25Houston Hobby

21h 30m

1 stop

SYD06:55Sydney Kingsford Smith

29 Nov

SYD14:05Sydney Kingsford Smith

18h 49m

1 stop

HOU15:54Houston Hobby

$2,643

American Airlines flights from Houston to Sydney

Our best American Airlines deals on Houston to Sydney flight tickets

American Airlines

17 Aug

HOU18:14Houston Hobby

21h 51m

2 stops

SYD07:05Sydney Kingsford Smith

30 Aug

SYD12:00Sydney Kingsford Smith

18h 26m

1 stop

HOU15:26Houston Hobby

$2,676

American Airlines

28 Sept

HOU16:18Houston Hobby

24h 12m

2 stops

SYD07:30Sydney Kingsford Smith

6 Oct

SYD10:10Sydney Kingsford Smith

22h 26m

2 stops

HOU16:36Houston Hobby

$2,693

American Airlines

16 Aug

HOU18:14Houston Hobby

21h 51m

2 stops

SYD07:05Sydney Kingsford Smith

29 Aug

SYD12:00Sydney Kingsford Smith

22h 51m

1 stop

HOU19:51Houston Hobby

$2,766

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 12/8

16:02-22:25

2 stops39h 23m

Sydney Kingsford Smith

Wed 19/8

13:15-23:56

2 stops25h 41m

$1,326

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 12/8

16:02-22:25

2 stops39h 23m

Sydney Kingsford Smith

Wed 19/8

13:15-10:47

3 stops36h 32m

$1,389

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 23/8

15:52-22:25

2 stops39h 33m

Sydney Kingsford Smith

Mon 7/9

13:15-11:56

3 stops37h 41m

$1,543

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 29/7

16:02-11:50

2 stops28h 48m

Sydney Kingsford Smith

Wed 5/8

13:15-11:27

3 stops37h 12m

$1,545

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

$1,546

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 28/7

12:46-11:50

2 stops32h 04m

Sydney Kingsford Smith

Tue 11/8

13:15-19:51

2 stops21h 36m

$2,145

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 28/7

16:14-11:50

2 stops28h 36m

Sydney Kingsford Smith

Tue 4/8

13:15-19:57

2 stops21h 42m

$2,148

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Thu 12/11

16:25-06:55

1 stop21h 30m

Sydney Kingsford Smith

Sat 21/11

17:50-15:54

2 stops39h 04m

$2,619

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 28/9

16:18-06:55

1 stop23h 37m

Sydney Kingsford Smith

Tue 6/10

13:00-16:36

1 stop19h 36m

$2,638

Fastest return journey

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 17/8

18:14-07:05

2 stops21h 51m

Sydney Kingsford Smith

Sun 30/8

12:00-15:26

1 stop18h 26m

$2,676

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 $103. 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 $199.

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 $2,023 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 $1,466 on momondo.

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

There is only 1 cabin class 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 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.