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Cheap flights from Houston to Australia from $673

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston to Australia departing on 20/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
16:34 - 12:35
IAH
-
SYD
27h 01m
2 stops
Multiple Airlines Logo
14:00 - 00:30
SYD
-
IAH
27h 30m
2 stops
$1,256Multiple Airlines
Sat, 28 Feb - Sat, 7 Mar
Multiple Airlines Logo
16:22 - 12:35
IAH
-
SYD
28h 13m
2 stops
Multiple Airlines Logo
14:00 - 00:11
SYD
-
IAH
26h 11m
2 stops
$1,274Multiple Airlines
Tue, 17 Mar - Tue, 24 Mar
Air Canada Logo
17:25 - 08:45
IAH
-
BNE
23h 20m
1 stop
Air Canada Logo
10:45 - 15:24
BNE
-
IAH
20h 39m
1 stop
$1,277Air Canada
Mon, 23 Feb - Sun, 8 Mar
Air Canada Logo
11:55 - 08:45
IAH
-
BNE
28h 50m
2 stops
Air Canada Logo
10:45 - 15:24
BNE
-
IAH
20h 39m
1 stop
$1,289Air Canada
Mon, 23 Feb - Sun, 8 Mar
American Airlines Logo
16:21 - 06:55
HOU
-
SYD
21h 34m
1 stop
American Airlines Logo
13:05 - 15:50
SYD
-
HOU
18h 45m
1 stop
$1,460American Airlines
Sun, 22 Feb - Sat, 14 Mar
American Airlines Logo
16:21 - 09:00
HOU
-
SYD
23h 39m
2 stops
American Airlines Logo
13:05 - 15:50
SYD
-
HOU
18h 45m
1 stop
$1,465American Airlines
Sun, 22 Feb - Sat, 14 Mar
Delta Logo
05:25 - 08:20
HOU
-
BNE
34h 55m
2 stops
Delta Logo
10:40 - 09:23
BNE
-
HOU
38h 43m
2 stops
$1,678Delta
Mon, 23 Feb - Sun, 8 Mar
Delta Logo
14:13 - 07:20
HOU
-
BNE
26h 07m
2 stops
Delta Logo
10:05 - 22:42
BNE
-
HOU
27h 37m
2 stops
$1,679Delta
Wed, 18 Mar - Wed, 25 Mar
Qantas Airways Logo
10:13 - 11:35
HOU
-
SYD
32h 22m
2 stops
Qantas Airways Logo
17:35 - 11:48
SYD
-
HOU
34h 13m
2 stops
$1,778Qantas Airways
Sun, 22 Feb - Sat, 14 Mar
Qantas Airways Logo
16:18 - 13:35
HOU
-
PER
32h 17m
2 stops
Qantas Airways Logo
06:20 - 19:51
PER
-
HOU
26h 31m
2 stops
$3,708Qantas Airways
Tue, 5 May - Wed, 20 May

American Airlines flights from Houston to Australia

Our best American Airlines deals on Houston to Australia flight tickets
American Airlines
22 Mar
IAH18:22Houston George Bush Intcntl
22h 38m
2 stops
SYD09:00Sydney Kingsford Smith
29 Mar
SYD18:50Sydney Kingsford Smith
21h 06m
2 stops
IAH23:56Houston George Bush Intcntl
$1,393
American Airlines
22 Feb
IAH19:42Houston George Bush Intcntl
20h 18m
1 stop
SYD09:00Sydney Kingsford Smith
14 Mar
SYD11:20Sydney Kingsford Smith
23h 51m
1 stop
IAH19:11Houston George Bush Intcntl
$1,457
American Airlines
22 Feb
HOU16:21Houston Hobby
21h 34m
1 stop
SYD06:55Sydney Kingsford Smith
14 Mar
SYD13:05Sydney Kingsford Smith
18h 45m
1 stop
HOU15:50Houston Hobby
$1,460

Delta flights from Houston to Australia

Our best Delta deals on Houston to Australia flight tickets
Delta
23 Feb
HOU05:25Houston Hobby
34h 55m
2 stops
BNE08:20Brisbane
8 Mar
BNE10:40Brisbane
38h 43m
2 stops
HOU09:23Houston Hobby
$1,678
Delta
18 Mar
HOU14:13Houston Hobby
26h 07m
2 stops
BNE07:20Brisbane
25 Mar
BNE10:05Brisbane
27h 37m
2 stops
HOU22:42Houston Hobby
$1,679
Delta
15 Feb
HOU05:25Houston Hobby
32h 25m
2 stops
SYD06:50Sydney Kingsford Smith
1 Mar
SYD10:40Sydney Kingsford Smith
28h 48m
2 stops
HOU22:28Houston Hobby
$2,115

momondo Fare Finder

 
Customise your flight search to find flights from Houston to Australia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 78,305 searches. Data last updated 6 February 2026.
Use the filters below to find and compare flights from Houston to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 28/2

16:34-12:35

2 stops27h 01m

Sydney Kingsford Smith

Sat 7/3

14:00-00:30

2 stops27h 30m

$1,256

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 17/3

16:22-12:35

2 stops28h 13m

Sydney Kingsford Smith

Tue 24/3

14:00-00:11

2 stops26h 11m

$1,274

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Mon 23/2

17:25-08:45

1 stop23h 20m

Brisbane

Sun 8/3

10:45-15:24

1 stop20h 39m

$1,277

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Mon 23/2

11:55-08:45

2 stops28h 50m

Brisbane

Sun 8/3

10:45-15:24

1 stop20h 39m

$1,289

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Sun 22/2

16:21-06:55

1 stop21h 34m

Sydney Kingsford Smith

Sat 14/3

13:05-15:50

1 stop18h 45m

$1,460

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Sun 22/2

16:21-09:00

2 stops23h 39m

Sydney Kingsford Smith

Sat 14/3

13:05-15:50

1 stop18h 45m

$1,465

HoustonBrisbane

HOU - BNE

HOUBNE

Houston Hobby

Mon 23/2

05:25-08:20

2 stops34h 55m

Brisbane

Sun 8/3

10:40-09:23

2 stops38h 43m

$1,678

HoustonBrisbane

HOU - BNE

HOUBNE

Houston Hobby

Wed 18/3

14:13-07:20

2 stops26h 07m

Brisbane

Wed 25/3

10:05-22:42

2 stops27h 37m

$1,679

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Sun 22/2

10:13-11:35

2 stops32h 22m

Sydney Kingsford Smith

Sat 14/3

17:35-11:48

2 stops34h 13m

$1,778

HoustonPerth

HOU - PER

HOUPER

Houston Hobby

Tue 5/5

16:18-13:35

2 stops32h 17m

Perth

Wed 20/5

06:20-19:51

2 stops26h 31m

$3,708

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Australia from

How to get the cheapest flight ticket from Houston to Australia

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

What is the cheapest month to fly to Australia?

In general, July is the cheapest month to fly from Houston to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,224. If you don’t want to visit Australia in July, then you should wait until March to fly from Houston, when ticket prices are also cheap, with an average price of $1,250.

What is the cheapest Houston to Australia flight route?

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

How far in advance should I book a flight to Australia?

You are more likely to see cheaper flights to Australia from Houston when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,657 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Houston for as low as $1,356 on momondo.

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

There is only 1 cabin class available to choose from on Houston to Australia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Houston to Australia flight deals and tips

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

Fastest flight time

17h 30m

Direct flights

Every day

Airports in Australia

266 airports
The fastest flight from Houston to Australia takes 17h 30m
Direct flights go from Houston to Australia every day.
There are 266 airports in Australia. From Houston there are direct flights to Sydney Kingsford Smith (SYD).
Search flight deals

  • When did momondo last update prices for flights from Houston to Australia?

    Prices for flights from Houston to Australia refresh daily.

  • How old do you have to be to fly from Houston to Australia?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Houston to Australia.

  • What documentation or ID do you need to fly to Australia?

    The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

Finding the right flight to Australia from Houston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Australia quick and easy, saving you time and money.

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

Flights from Houston to Australia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Houston and Australia by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Houston to Australia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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