What is the cheapest airline that flies from Houston to Australia?

American Airlines, Qantas Airways, and Delta are the most popular carriers operating from Houston to Australia

What airlines fly to Australia?

Air New Zealand, American Airlines and United Airlines are the top three most popular airlines that fly to Australia from Houston according to our data. Air New Zealand is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 7 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

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?

As of October 2025, there are 7 operators available to choose from 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.

$410 Cheap Flights from Houston to Australia in 2025/26

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:17 pm - 9:00 amIAH-SYD

21h 43m2 stops

11:20 am - 3:59 pmSYD-IAH

21h 39m2 stops

$803American Airlines

Find Deal

Sun, Nov 2 - Tue, Nov 18

4:47 pm - 7:25 amIAH-SYD

21h 38m1 stop

11:20 am - 5:36 pmSYD-IAH

23h 16m2 stops

$804American Airlines

Find Deal

Sun, Nov 2 - Tue, Nov 18

4:47 pm - 9:00 amIAH-SYD

23h 13m1 stop

11:20 am - 4:17 pmSYD-IAH

21h 57m1 stop

$813Qantas Airways

Find Deal

Sun, Nov 2 - Tue, Nov 18

5:02 pm - 9:15 amIAH-SYD

23h 13m1 stop

11:50 am - 10:25 amSYD-IAH

15h 35mnonstop

$834United Airlines

Find Deal

Sun, Nov 2 - Tue, Nov 18

8:25 pm - 7:00 amIAH-SYD

17h 35mnonstop

11:50 am - 10:25 amSYD-IAH

15h 35mnonstop

$836United Airlines

Find Deal

Sun, Nov 30 - Sun, Dec 7

11:49 am - 8:20 amIAH-BNE

28h 31m2 stops

11:05 am - 2:12 pmBNE-IAH

19h 07m1 stop

$851Delta

Find Deal

Wed, Nov 5 - Wed, Nov 12

4:00 pm - 8:30 amIAH-SYD

23h 30m1 stop

10:40 am - 2:15 pmSYD-IAH

20h 35m1 stop

$854Delta

Find Deal

Sat, Nov 29 - Mon, Dec 8

4:47 pm - 9:00 amIAH-SYD

23h 13m1 stop

11:20 am - 4:17 pmSYD-IAH

21h 57m1 stop

$866Qantas Airways

Find Deal

Tue, Nov 11 - Mon, Nov 17

8:05 pm - 10:55 amIAH-MEL

21h 50m1 stop

8:35 am - 2:05 pmMEL-IAH

22h 30m1 stop

$1,010Air New Zealand

Find Deal

Mon, Nov 24 - Mon, Dec 8

8:05 pm - 8:45 amIAH-SYD

19h 40m1 stop

7:15 pm - 2:05 pmSYD-IAH

35h 50m1 stop

$1,041Air New Zealand

Find Deal

Sun, Nov 23 - Sat, Dec 6

Delta flights from Houston to Australia

Our best Delta deals on Houston to Australia flight tickets

Delta

Nov 5

IAH11:49 amHouston George Bush Intcntl

28h 31m

2 stops

BNE8:20 amBrisbane

Nov 12

BNE11:05 amBrisbane

22h 32m

2 stops

IAH5:37 pmHouston George Bush Intcntl

$851

Find similar

Delta

Nov 29

IAH4:00 pmHouston George Bush Intcntl

23h 30m

1 stop

SYD8:30 amSydney Kingsford Smith

Dec 8

SYD10:40 amSydney Kingsford Smith

20h 35m

1 stop

IAH2:15 pmHouston George Bush Intcntl

$854

Find similar

Delta

Nov 2

HOU5:00 amHouston Hobby

33h 30m

2 stops

SYD7:30 amSydney Kingsford Smith

Nov 18

SYD10:40 amSydney Kingsford Smith

24h 13m

2 stops

HOU5:53 pmHouston Hobby

$855

Find similar

American Airlines flights from Houston to Australia

Our best American Airlines deals on Houston to Australia flight tickets

American Airlines

Nov 2

IAH6:17 pmHouston George Bush Intcntl

21h 43m

2 stops

SYD9:00 amSydney Kingsford Smith

Nov 18

SYD11:20 amSydney Kingsford Smith

21h 39m

2 stops

IAH3:59 pmHouston George Bush Intcntl

$803

Find similar

American Airlines

Nov 2

IAH4:47 pmHouston George Bush Intcntl

21h 38m

1 stop

SYD7:25 amSydney Kingsford Smith

Nov 18

SYD11:20 amSydney Kingsford Smith

23h 16m

2 stops

IAH5:36 pmHouston George Bush Intcntl

$804

Find similar

American Airlines

Dec 29

IAH7:30 pmHouston George Bush Intcntl

20h 30m

1 stop

SYD9:00 amSydney Kingsford Smith

Jan 12

SYD11:20 amSydney Kingsford Smith

19h 20m

1 stop

IAH1:40 pmHouston George Bush Intcntl

$814

Find similar

Fly from

Fly to

Route

Depart

Return

Price

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 11/2

6:17 pm-9:00 am

2 stops21h 43m

Sydney Kingsford Smith

Tue 11/18

11:20 am-3:59 pm

2 stops21h 39m

$803

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 11/2

4:47 pm-7:25 am

1 stop21h 38m

Sydney Kingsford Smith

Tue 11/18

11:20 am-5:36 pm

2 stops23h 16m

$804

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 11/2

4:47 pm-9:00 am

1 stop23h 13m

Sydney Kingsford Smith

Tue 11/18

11:20 am-4:17 pm

1 stop21h 57m

$813

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 11/2

5:02 pm-9:15 am

1 stop23h 13m

Sydney Kingsford Smith

Tue 11/18

11:50 am-10:25 am

Nonstop15h 35m

$834

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 11/30

8:25 pm-7:00 am

Nonstop17h 35m

Sydney Kingsford Smith

Sun 12/7

11:50 am-10:25 am

Nonstop15h 35m

$836

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Wed 11/5

11:49 am-8:20 am

2 stops28h 31m

Brisbane

Wed 11/12

11:05 am-2:12 pm

1 stop19h 07m

$851

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 11/29

4:00 pm-8:30 am

1 stop23h 30m

Sydney Kingsford Smith

Mon 12/8

10:40 am-2:15 pm

1 stop20h 35m

$854

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 11/11

4:47 pm-9:00 am

1 stop23h 13m

Sydney Kingsford Smith

Mon 11/17

11:20 am-4:17 pm

1 stop21h 57m

$866

HoustonMelbourne

IAH - MEL

IAHMEL

Houston George Bush Intcntl

Mon 11/24

8:05 pm-10:55 am

1 stop21h 50m

Melbourne

Mon 12/8

8:35 am-2:05 pm

1 stop22h 30m

$1,010

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 11/23

8:05 pm-8:45 am

1 stop19h 40m

Sydney Kingsford Smith

Sat 12/6

7:15 pm-2:05 pm

1 stop35h 50m

$1,041

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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 $883. 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 $1,818 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 $1,140 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 $865 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?
As of October 2025, there are 7 operators available to choose from 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
Qantas Airways	PriceFrom $655	Free Cancellation	Rating 7.5 922 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $684	Free Cancellation	Rating 7.2 11,033 reviews	Search American Airlines flights
Air New Zealand	PriceFrom $783	Free Cancellation	Rating 8.0 517 reviews	Search Air New Zealand flights
Fiji Airways	PriceFrom $790	Free Cancellation	Rating 8.0 205 reviews	Search Fiji Airways flights
Delta	PriceFrom $830	Free Cancellation	Rating 7.9 7,982 reviews	Search Delta flights
United Airlines	PriceFrom $877	Free Cancellation	Rating 7.4 8,995 reviews	Search United Airlines flights
Air Canada	PriceFrom $998	Free Cancellation	Rating 7.1 10,350 reviews	Search Air Canada 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.