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Cheap flights from Houston to Australia from $519

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 2/26. 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
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
9:36 am - 9:35 am
IAH
-
SYD
30h 59m2 stops
Air Canada Logo
11:20 am - 1:34 pm
SYD
-
IAH
43h 14m2 stops
$930Air Canada
Sun, Feb 8 - Sun, Feb 22
Air Canada Logo
5:25 pm - 8:45 am
IAH
-
BNE
23h 20m1 stop
Air Canada Logo
10:45 am - 1:34 pm
BNE
-
IAH
42h 49m2 stops
$933Air Canada
Tue, Feb 3 - Tue, Feb 17
Multiple Airlines Logo
4:13 pm - 12:35 pm
IAH
-
SYD
27h 22m2 stops
Multiple Airlines Logo
2:00 pm - 11:55 pm
SYD
-
IAH
26h 55m2 stops
$953Multiple Airlines
Sun, Jan 25 - Sat, Jan 31
Multiple Airlines Logo
2:26 pm - 8:45 am
IAH
-
BNE
50h 19m2 stops
Multiple Airlines Logo
6:35 am - 4:24 pm
BNE
-
IAH
25h 49m2 stops
$971Multiple Airlines
Mon, Feb 2 - Tue, Feb 10
American Airlines Logo
12:47 pm - 5:00 am
HOU
-
MEL
23h 13m1 stop
American Airlines Logo
4:05 pm - 10:46 pm
MEL
-
HOU
23h 41m1 stop
$1,123American Airlines
Mon, Jan 26 - Mon, Feb 9
American Airlines Logo
4:20 pm - 5:00 am
HOU
-
MEL
20h 40m1 stop
American Airlines Logo
9:45 am - 5:59 pm
MEL
-
HOU
23h 14m2 stops
$1,126American Airlines
Mon, Mar 9 - Tue, Apr 21
Delta Logo
10:35 am - 6:05 am
HOU
-
SYD
27h 30m2 stops
Delta Logo
9:40 am - 10:28 pm
SYD
-
HOU
28h 48m2 stops
$1,167Delta
Tue, Mar 10 - Tue, Mar 24
Delta Logo
11:09 am - 8:00 am
HOU
-
MEL
27h 51m2 stops
Delta Logo
10:10 am - 10:33 pm
MEL
-
HOU
29h 23m2 stops
$1,167Delta
Wed, Jan 28 - Wed, Feb 4
Qantas Airways Logo
4:20 pm - 5:10 pm
HOU
-
BNE
32h 50m2 stops
Qantas Airways Logo
8:30 am - 11:48 am
BNE
-
HOU
42h 18m2 stops
$1,721Qantas Airways
Wed, Feb 18 - Thu, Mar 12
Qantas Airways Logo
6:21 pm - 3:50 pm
IAH
-
AVV
28h 29m2 stops
Qantas Airways Logo
8:55 pm - 4:01 pm
AVV
-
IAH
35h 06m2 stops
$2,277Qantas Airways
Sat, Mar 7 - Sat, Mar 28

Air Canada flights from Houston to Australia

Our best Air Canada deals on Houston to Australia flight tickets
Air Canada
Feb 8
IAH9:36 amHouston George Bush Intcntl
30h 59m
2 stops
SYD9:35 amSydney Kingsford Smith
Feb 22
SYD11:20 amSydney Kingsford Smith
43h 14m
2 stops
IAH1:34 pmHouston George Bush Intcntl
$930
Find similar
Air Canada
Feb 3
IAH5:25 pmHouston George Bush Intcntl
23h 20m
1 stop
BNE8:45 amBrisbane
Feb 17
BNE10:45 amBrisbane
42h 49m
2 stops
IAH1:34 pmHouston George Bush Intcntl
$933
Find similar
Air Canada
Feb 8
IAH10:03 amHouston George Bush Intcntl
30h 32m
1 stop
SYD9:35 amSydney Kingsford Smith
Feb 22
SYD11:20 amSydney Kingsford Smith
43h 14m
2 stops
IAH1:34 pmHouston George Bush Intcntl
$942
Find similar

Qantas Airways flights from Houston to Australia

Our best Qantas Airways deals on Houston to Australia flight tickets
Qantas Airways
Feb 10
IAH2:12 pmHouston George Bush Intcntl
22h 48m
1 stop
BNE5:00 amBrisbane
Mar 10
BNE7:40 pmBrisbane
38h 31m
1 stop
IAH7:11 pmHouston George Bush Intcntl
$1,071
Find similar
Qantas Airways
Jan 27
HOU6:36 pmHouston Hobby
27h 59m
2 stops
MEL3:35 pmMelbourne
Feb 10
MEL11:55 pmMelbourne
29h 14m
2 stops
HOU12:09 pmHouston Hobby
$1,657
Find similar
Qantas Airways
Mar 9
HOU4:20 pmHouston Hobby
22h 35m
1 stop
SYD6:55 amSydney Kingsford Smith
Mar 18
SYD1:05 pmSydney Kingsford Smith
18h 45m
1 stop
HOU3:50 pmHouston Hobby
$1,927
Find similar

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated December 9, 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 2/8

9:36 am-9:35 am

2 stops30h 59m

Sydney Kingsford Smith

Sun 2/22

11:20 am-1:34 pm

2 stops43h 14m

$930

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Tue 2/3

5:25 pm-8:45 am

1 stop23h 20m

Brisbane

Tue 2/17

10:45 am-1:34 pm

2 stops42h 49m

$933

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 1/25

4:13 pm-12:35 pm

2 stops27h 22m

Sydney Kingsford Smith

Sat 1/31

2:00 pm-11:55 pm

2 stops26h 55m

$953

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Mon 2/2

2:26 pm-8:45 am

2 stops50h 19m

Brisbane

Tue 2/10

6:35 am-4:24 pm

2 stops25h 49m

$971

HoustonMelbourne

HOU - MEL

HOUMEL

Houston Hobby

Mon 1/26

12:47 pm-5:00 am

1 stop23h 13m

Melbourne

Mon 2/9

4:05 pm-10:46 pm

1 stop23h 41m

$1,123

HoustonMelbourne

HOU - MEL

HOUMEL

Houston Hobby

Mon 3/9

4:20 pm-5:00 am

1 stop20h 40m

Melbourne

Tue 4/21

9:45 am-5:59 pm

2 stops23h 14m

$1,126

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 3/10

10:35 am-6:05 am

2 stops27h 30m

Sydney Kingsford Smith

Tue 3/24

9:40 am-10:28 pm

2 stops28h 48m

$1,167

HoustonMelbourne

HOU - MEL

HOUMEL

Houston Hobby

Wed 1/28

11:09 am-8:00 am

2 stops27h 51m

Melbourne

Wed 2/4

10:10 am-10:33 pm

2 stops29h 23m

$1,167

HoustonBrisbane

HOU - BNE

HOUBNE

Houston Hobby

Wed 2/18

4:20 pm-5:10 pm

2 stops32h 50m

Brisbane

Thu 3/12

8:30 am-11:48 am

2 stops42h 18m

$1,721

HoustonMelbourne

IAH - AVV

IAHAVV

Houston George Bush Intcntl

Sat 3/7

6:21 pm-3:50 pm

2 stops28h 29m

Melbourne Avalon

Sat 3/28

8:55 pm-4:01 pm

2 stops35h 06m

$2,277

Flights are sorted by cheapest round-trip 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?

The month of July is, on average, the cheapest month to fly to Australia from Houston, with most prices found around $853. If you aren’t able to travel during the month of July, then book flights to Australia from Houston during March instead. Flights to Australia in March, while not as cheap as those in July, still average around $897.

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

The cheapest day to depart from Houston to Australia is on a Tuesday. Travelers who choose to depart for Australia on a Tuesday will often find tickets for as low as $1,171. On the other hand, Thursday is the most expensive day to depart from Houston because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,370.

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

Flying to Australia from Houston at noon is the least expensive time of day to depart. momondo users have found prices as low as $868 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,708 on average. Flights to Australia from Houston in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $1,100 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Houston for as low as $863 on momondo.

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

There are 3 cabin classes 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 are updated 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?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston to Australia.

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

    The travel and health documents you'll need for your trip to Australia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Australia. It is always advisable to seek 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
DeltaPriceFrom $337Free CancellationRating
7.9
8,011 reviews
Search Delta flights
Qantas AirwaysPriceFrom $675Free CancellationRating
7.5
947 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $701Free CancellationRating
7.2
11,043 reviews
Search American Airlines flights
Air CanadaPriceFrom $750Free CancellationRating
7.1
10,514 reviews
Search Air Canada flights
Air New ZealandPriceFrom $783Free CancellationRating
8.0
552 reviews
Search Air New Zealand flights
Fiji AirwaysPriceFrom $790Free CancellationRating
8.1
210 reviews
Search Fiji Airways flights
United AirlinesPriceFrom $839Free CancellationRating
7.4
9,089 reviews
Search United Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Houston to Australia. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Houston to Australia flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Houston to Australia.

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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