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Cheap flights from Houston to Australia from $788

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 11/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
09:55 - 07:25IAH-SYD
28h 30m1 stop
Multiple Airlines Logo
11:20 - 19:23SYD-IAH
25h 03m1 stop
$1,491Multiple Airlines
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Sun, 1 Feb - Mon, 9 Feb
Multiple Airlines Logo
17:14 - 12:35IAH-SYD
26h 21m2 stops
Multiple Airlines Logo
14:00 - 05:54SYD-IAH
32h 54m3 stops
$1,508Multiple Airlines
Find Deal
Sun, 1 Feb - Mon, 9 Feb
Air New Zealand Logo
20:05 - 10:30IAH-SYD
21h 25m1 stop
Air New Zealand Logo
09:55 - 14:05SYD-IAH
21h 10m1 stop
$1,549Air New Zealand
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Wed, 3 Dec - Wed, 10 Dec
Air New Zealand Logo
20:05 - 09:25IAH-MEL
20h 20m1 stop
Air New Zealand Logo
10:35 - 14:05MEL-IAH
20h 30m1 stop
$1,550Air New Zealand
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Wed, 3 Dec - Wed, 10 Dec
Air Canada Logo
16:20 - 07:45IAH-BNE
48h 25m2 stops
Air Canada Logo
10:00 - 13:39BNE-IAH
42h 39m2 stops
$1,595Air Canada
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Thu, 19 Mar - Thu, 9 Apr
Air Canada Logo
12:10 - 07:45IAH-BNE
28h 35m2 stops
Air Canada Logo
10:00 - 13:39BNE-IAH
42h 39m2 stops
$1,599Air Canada
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Tue, 17 Mar - Thu, 9 Apr
Qantas Airways Logo
18:21 - 08:20IAH-MEL
44h 59m2 stops
Qantas Airways Logo
12:00 - 19:16MEL-IAH
23h 16m1 stop
$1,798Qantas Airways
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Mon, 16 Feb - Mon, 9 Mar
Qantas Airways Logo
18:36 - 14:25HOU-SYD
26h 49m2 stops
Qantas Airways Logo
06:20 - 12:09SYD-HOU
22h 49m2 stops
$1,982Qantas Airways
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Sun, 1 Feb - Sun, 8 Feb
Cathay Pacific Logo
20:21 - 06:55IAH-PER
45h 34m2 stops
Cathay Pacific Logo
09:15 - 22:42PER-IAH
50h 27m2 stops
$2,095Cathay Pacific
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Wed, 18 Mar - Wed, 22 Apr
Cathay Pacific Logo
18:52 - 22:55IAH-PER
62h 03m2 stops
Cathay Pacific Logo
08:30 - 23:25PER-IAH
51h 55m2 stops
$2,108Cathay Pacific
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Sun, 1 Mar - Sun, 15 Mar

Air New Zealand flights from Houston to Australia

Our best Air New Zealand deals on Houston to Australia flight tickets
Air New Zealand
3 Dec
IAH20:05Houston George Bush Intcntl
21h 25m
1 stop
SYD10:30Sydney Kingsford Smith
10 Dec
SYD09:55Sydney Kingsford Smith
21h 10m
1 stop
IAH14:05Houston George Bush Intcntl
$1,549
Find similar
Air New Zealand
3 Dec
IAH20:05Houston George Bush Intcntl
20h 20m
1 stop
MEL09:25Melbourne
10 Dec
MEL10:35Melbourne
20h 30m
1 stop
IAH14:05Houston George Bush Intcntl
$1,550
Find similar
Air New Zealand
1 Dec
IAH20:05Houston George Bush Intcntl
21h 25m
1 stop
SYD10:30Sydney Kingsford Smith
8 Dec
SYD07:45Sydney Kingsford Smith
23h 20m
1 stop
IAH14:05Houston George Bush Intcntl
$1,592
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Qantas Airways flights from Houston to Australia

Our best Qantas Airways deals on Houston to Australia flight tickets
Qantas Airways
24 Feb
IAH18:21Houston George Bush Intcntl
33h 29m
2 stops
SYD20:50Sydney Kingsford Smith
11 Mar
SYD11:20Sydney Kingsford Smith
23h 56m
1 stop
IAH19:16Houston George Bush Intcntl
$1,757
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Qantas Airways
16 Feb
IAH18:21Houston George Bush Intcntl
44h 59m
2 stops
MEL08:20Melbourne
9 Mar
MEL12:00Melbourne
23h 16m
1 stop
IAH19:16Houston George Bush Intcntl
$1,798
Find similar
Qantas Airways
28 Feb
IAH16:36Houston George Bush Intcntl
47h 34m
2 stops
SYD09:10Sydney Kingsford Smith
19 Mar
SYD11:20Sydney Kingsford Smith
23h 56m
1 stop
IAH19:16Houston George Bush Intcntl
$1,809
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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 15 November 2025.
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

Sun 1/2

09:55-07:25

1 stop28h 30m

Sydney Kingsford Smith

Mon 9/2

11:20-19:23

1 stop25h 03m

$1,491

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 1/2

17:14-12:35

2 stops26h 21m

Sydney Kingsford Smith

Mon 9/2

14:00-05:54

3 stops32h 54m

$1,508

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 3/12

20:05-10:30

1 stop21h 25m

Sydney Kingsford Smith

Wed 10/12

09:55-14:05

1 stop21h 10m

$1,549

HoustonMelbourne

IAH - MEL

IAHMEL

Houston George Bush Intcntl

Wed 3/12

20:05-09:25

1 stop20h 20m

Melbourne

Wed 10/12

10:35-14:05

1 stop20h 30m

$1,550

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Thu 19/3

16:20-07:45

2 stops48h 25m

Brisbane

Thu 9/4

10:00-13:39

2 stops42h 39m

$1,595

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Tue 17/3

12:10-07:45

2 stops28h 35m

Brisbane

Thu 9/4

10:00-13:39

2 stops42h 39m

$1,599

HoustonMelbourne

IAH - MEL

IAHMEL

Houston George Bush Intcntl

Mon 16/2

18:21-08:20

2 stops44h 59m

Melbourne

Mon 9/3

12:00-19:16

1 stop23h 16m

$1,798

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Sun 1/2

18:36-14:25

2 stops26h 49m

Sydney Kingsford Smith

Sun 8/2

06:20-12:09

2 stops22h 49m

$1,982

HoustonPerth

IAH - PER

IAHPER

Houston George Bush Intcntl

Wed 18/3

20:21-06:55

2 stops45h 34m

Perth

Wed 22/4

09:15-22:42

2 stops50h 27m

$2,095

HoustonPerth

IAH - PER

IAHPER

Houston George Bush Intcntl

Sun 1/3

18:52-22:55

2 stops62h 03m

Perth

Sun 15/3

08:30-23:25

2 stops51h 55m

$2,108

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 $1,306. If you don’t want to visit Australia in July, then you should wait until April to fly from Houston, when ticket prices are also cheap, with an average price of $1,338.

What is the cheapest day to depart on your flight to Australia?

On average, the least expensive day to fly to Australia from Houston is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $1,643. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Houston to Australia on a Friday will generally be more expensive and average around $2,872. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Australia?

According to our data, the cheapest time of day to fly to Australia is in the afternoon. momondo users have found flights departing from Houston to Australia in the afternoon for as low as $1,582. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Australia are more costly in the evening, with an average ticket price of $3,202. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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 $1,642 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 $1,324 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

1 airport
The fastest flight from Houston to Australia takes 17h 30m
Direct flights go from Houston to Australia every day.
There is 1 airport near Australia: 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 many operators does momondo search for flights from Houston to Australia?

  • 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.

Best airlines flying from Houston to Australia

Compare and see reviews for airlines that fly from Houston to Australia with momondo
Airline
Rating
Free cancellation
Price
Qantas AirwaysPriceFrom $707Free cancellationRating
7.5
934 reviews
Search Qantas Airways flights

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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