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

Cathay Pacific, Air Canada, and Air New Zealand are the most popular carriers operating from Houston to Australia

What airlines fly to Australia?

Air New Zealand, United Airlines and American 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 69% 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 August 2026, 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.

$604 Cheap Flights from Houston to Australia in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Houston to Australia

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:59 pm - 7:30 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

41h 31m1 stop Los Angeles

2:00 pm - 11:26 amSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

37h 26m2 stops Nadi Los Angeles

$1,060Multiple Airlines

Mon, Oct 19 - Mon, Oct 26

10:59 pm - 7:30 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

40h 31m1 stop Los Angeles

2:00 pm - 11:26 amSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

38h 26m2 stops Nadi Los Angeles

$1,062Multiple Airlines

Mon, Oct 19 - Mon, Nov 2

2:12 pm - 9:00 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

25h 48m1 stop Los Angeles

5:50 pm - 1:17 pmSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

36h 27m2 stops Auckland Intl Dallas/Fort Worth

$1,283Qantas Airways

Sun, Jan 24 - Sat, Feb 6

2:12 pm - 9:00 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

25h 48m1 stop Los Angeles

5:50 pm - 1:17 pmSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

36h 27m2 stops Auckland Intl Dallas/Fort Worth

$1,284Qantas Airways

Sun, Jan 24 - Sat, Feb 6

4:45 pm - 7:05 amIAH Houston George Bush Intcntl-BNE Brisbane

23h 20m1 stop Vancouver Intl

10:00 am - 3:37 pmBNE Brisbane-IAH Houston George Bush Intcntl

20h 37m1 stop Vancouver Intl

$1,371Air Canada

Sun, Sep 27 - Sun, Oct 4

10:00 am - 7:05 amIAH Houston George Bush Intcntl-BNE Brisbane

30h 05m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

10:00 am - 3:37 pmBNE Brisbane-IAH Houston George Bush Intcntl

20h 37m1 stop Vancouver Intl

$1,373Air Canada

Sun, Sep 27 - Sun, Oct 4

12:18 pm - 9:05 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

27h 47m1 stop Los Angeles

11:50 am - 2:15 pmSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

19h 25m1 stop Auckland Intl

$1,458Air New Zealand

Tue, Nov 3 - Tue, Nov 17

4:30 pm - 8:00 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

23h 30m1 stop Los Angeles

11:55 am - 3:25 pmSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

19h 30m1 stop Auckland Intl

$1,459Air New Zealand

Mon, Oct 5 - Mon, Oct 19

8:25 pm - 7:00 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mnonstop

9:15 am - 7:55 amSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mnonstop

$1,844United Airlines

Mon, Nov 16 - Sun, Nov 29

8:25 pm - 7:00 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mnonstop

9:15 am - 7:55 amSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mnonstop

$1,844United Airlines

Mon, Nov 2 - Sun, Nov 15

Cheap last minute flights

Enter your travel dates to find the best prices.

4:02 pm - 7:05 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

24h 03m1 stop Los Angeles

9:10 am - 11:56 pmSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

29h 46m1 stop Los Angeles

$1,375Multiple Airlines

Wed, Aug 19 - Wed, Aug 26

4:02 pm - 7:05 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

24h 03m1 stop Los Angeles

9:10 am - 10:47 amSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

40h 37m2 stops Los Angeles Atlanta Hartsfield-Jackson

$1,393Multiple Airlines

Wed, Aug 19 - Wed, Aug 26

4:50 pm - 7:05 amIAH Houston George Bush Intcntl-BNE Brisbane

23h 15m1 stop Vancouver Intl

10:00 am - 3:51 pmBNE Brisbane-IAH Houston George Bush Intcntl

20h 51m1 stop Vancouver Intl

$1,432Air Canada

Wed, Aug 19 - Sun, Aug 23

10:00 am - 7:05 amIAH Houston George Bush Intcntl-BNE Brisbane

30h 05m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

10:00 am - 3:51 pmBNE Brisbane-IAH Houston George Bush Intcntl

20h 51m1 stop Vancouver Intl

$1,435Air Canada

Wed, Aug 19 - Sun, Aug 23

4:30 pm - 10:55 amIAH Houston George Bush Intcntl-MEL Melbourne

27h 25m2 stops Los Angeles Auckland Intl

9:00 pm - 6:41 pmMEL Melbourne-IAH Houston George Bush Intcntl

36h 41m2 stops Sydney Kingsford Smith Los Angeles

$1,632Air New Zealand

Tue, Aug 18 - Tue, Aug 25

4:20 pm - 11:05 amIAH Houston George Bush Intcntl-BNE Brisbane

27h 45m2 stops San Francisco Auckland Intl

8:50 pm - 6:41 pmBNE Brisbane-IAH Houston George Bush Intcntl

36h 51m2 stops Sydney Kingsford Smith Los Angeles

$1,676Air New Zealand

Tue, Aug 18 - Thu, Aug 20

10:50 am - 6:50 amHOU Houston Hobby-SYD Sydney Kingsford Smith

29h 00m2 stops Atlanta Hartsfield-Jackson Los Angeles

9:15 am - 9:50 amSYD Sydney Kingsford Smith-HOU Houston Hobby

39h 35m2 stops Los Angeles Atlanta Hartsfield-Jackson

$2,131Delta

Wed, Aug 19 - Thu, Aug 27

6:00 am - 6:50 amHOU Houston Hobby-SYD Sydney Kingsford Smith

33h 50m2 stops Atlanta Hartsfield-Jackson Los Angeles

9:15 am - 10:05 pmSYD Sydney Kingsford Smith-HOU Houston Hobby

27h 50m2 stops Los Angeles Atlanta Hartsfield-Jackson

$2,131Delta

Thu, Aug 20 - Tue, Sep 1

6:05 pm - 6:55 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

21h 50m1 stop San Francisco

9:15 am - 7:55 amSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mnonstop

$2,148United Airlines

Wed, Aug 19 - Wed, Nov 11

6:05 pm - 6:55 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

21h 50m1 stop San Francisco

9:30 am - 3:36 pmSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

45h 06m1 stop Los Angeles

$3,141United Airlines

Fri, Aug 21 - Sun, Aug 30

Cheap direct flights

Enter your travel dates to find the best prices.

8:25 pm - 7:00 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mnonstop

9:15 am - 7:55 amSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mnonstop

$1,844United Airlines

Mon, Nov 16 - Sun, Nov 29

8:25 pm - 7:00 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mnonstop

9:15 am - 7:55 amSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mnonstop

$1,844United Airlines

Mon, Nov 2 - Sun, Nov 15

8:25 pm - 7:00 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mnonstop

9:20 am - 8:00 amSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mnonstop

$1,844United Airlines

Tue, Nov 3 - Tue, Nov 17

8:25 pm - 7:00 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mnonstop

9:20 am - 8:00 amSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mnonstop

$1,844United Airlines

Tue, Nov 10 - Tue, Nov 24

8:25 pm - 7:00 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mnonstop

9:20 am - 8:00 amSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mnonstop

$7,390Lufthansa

Thu, Dec 17 - Sat, Jan 2

8:25 pm - 7:00 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mnonstop

9:15 am - 7:55 amSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mnonstop

$8,196Lufthansa

Sun, Dec 13 - Sun, Jan 17

8:25 pm - 7:00 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mnonstop

9:15 am - 7:55 amSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mnonstop

$9,176Lufthansa

Fri, Dec 4 - Fri, Dec 18

8:25 pm - 7:00 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mnonstop

9:20 am - 8:00 amSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mnonstop

$9,176Lufthansa

Sat, Jan 16 - Sat, Feb 6

8:25 pm - 7:00 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mnonstop

9:15 am - 7:55 amSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mnonstop

$9,321Lufthansa

Thu, Jan 14 - Sun, Jan 31

8:25 pm - 7:00 amIAH Houston George Bush Intcntl-SYD Sydney Kingsford Smith

17h 35mnonstop

9:15 am - 7:55 amSYD Sydney Kingsford Smith-IAH Houston George Bush Intcntl

15h 40mnonstop

$9,464Lufthansa

Mon, Jan 18 - Wed, Jan 27

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Qantas Airways flights from Houston to Australia

Our best Qantas Airways deals on Houston to Australia flight tickets

Qantas Airways

Jan 24

IAH2:12 pmHouston George Bush Intcntl

25h 48m

1 stop

SYD9:00 amSydney Kingsford Smith

Feb 6

SYD5:50 pmSydney Kingsford Smith

36h 27m

2 stops

IAH1:17 pmHouston George Bush Intcntl

$1,283

Qantas Airways

Jan 24

IAH2:12 pmHouston George Bush Intcntl

25h 48m

1 stop

SYD9:00 amSydney Kingsford Smith

Feb 6

SYD5:50 pmSydney Kingsford Smith

36h 27m

2 stops

IAH1:17 pmHouston George Bush Intcntl

$1,284

Qantas Airways

Nov 12

IAH3:19 pmHouston George Bush Intcntl

24h 41m

1 stop

SYD9:00 amSydney Kingsford Smith

Nov 23

SYD7:15 pmSydney Kingsford Smith

37h 29m

2 stops

IAH3:44 pmHouston George Bush Intcntl

$1,334

American Airlines flights from Houston to Australia

Our best American Airlines deals on Houston to Australia flight tickets

American Airlines

Oct 19

HOU5:06 pmHouston Hobby

21h 49m

1 stop

SYD6:55 amSydney Kingsford Smith

Oct 28

SYD1:05 pmSydney Kingsford Smith

23h 00m

1 stop

HOU8:05 pmHouston Hobby

$1,855

American Airlines

Nov 11

HOU5:02 pmHouston Hobby

22h 58m

2 stops

SYD9:00 amSydney Kingsford Smith

Nov 29

SYD2:05 pmSydney Kingsford Smith

22h 39m

1 stop

HOU7:44 pmHouston Hobby

$1,859

American Airlines

Oct 19

HOU5:06 pmHouston Hobby

22h 59m

2 stops

SYD8:05 amSydney Kingsford Smith

Oct 28

SYD11:10 amSydney Kingsford Smith

21h 26m

2 stops

HOU4:36 pmHouston Hobby

$1,860

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 10/19

9:59 pm-7:30 am

1 stop41h 31m

Sydney Kingsford Smith

Mon 10/26

2:00 pm-11:26 am

2 stops37h 26m

$1,060

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 10/19

10:59 pm-7:30 am

1 stop40h 31m

Sydney Kingsford Smith

Mon 11/2

2:00 pm-11:26 am

2 stops38h 26m

$1,062

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Sun 1/24

2:12 pm-9:00 am

1 stop25h 48m

Sydney Kingsford Smith

Sat 2/6

5:50 pm-1:17 pm

2 stops36h 27m

$1,283

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Sun 1/24

2:12 pm-9:00 am

1 stop25h 48m

Sydney Kingsford Smith

Sat 2/6

5:50 pm-1:17 pm

2 stops36h 27m

$1,284

HoustonBrisbane

IAH Houston George Bush Intcntl - BNE Brisbane

IAHBNE

Houston George Bush Intcntl

Sun 9/27

4:45 pm-7:05 am

1 stop23h 20m

Brisbane

Sun 10/4

10:00 am-3:37 pm

1 stop20h 37m

$1,371

HoustonBrisbane

IAH Houston George Bush Intcntl - BNE Brisbane

IAHBNE

Houston George Bush Intcntl

Sun 9/27

10:00 am-7:05 am

2 stops30h 05m

Brisbane

Sun 10/4

10:00 am-3:37 pm

1 stop20h 37m

$1,373

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Tue 11/3

12:18 pm-9:05 am

1 stop27h 47m

Sydney Kingsford Smith

Tue 11/17

11:50 am-2:15 pm

1 stop19h 25m

$1,458

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 10/5

4:30 pm-8:00 am

1 stop23h 30m

Sydney Kingsford Smith

Mon 10/19

11:55 am-3:25 pm

1 stop19h 30m

$1,459

Quickest round-trip

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 11/16

8:25 pm-7:00 am

Nonstop17h 35m

Sydney Kingsford Smith

Sun 11/29

9:15 am-7:55 am

Nonstop15h 40m

$1,844

HoustonSydney

IAH Houston George Bush Intcntl - SYD Sydney Kingsford Smith

IAHSYD

Houston George Bush Intcntl

Mon 11/2

8:25 pm-7:00 am

Nonstop17h 35m

Sydney Kingsford Smith

Sun 11/15

9:15 am-7:55 am

Nonstop15h 40m

$1,844

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 November is, on average, the cheapest month to fly to Australia from Houston, with most prices found around $1,154. If you aren’t able to travel during the month of November, then book flights to Australia from Houston during May instead. Flights to Australia in May, while not as cheap as those in November, still average around $1,215.

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 from Houston 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 $1,466 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 $1,011 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 35m
Direct flights	Every day
Airports in Australia	269 airports

The fastest flight from Houston to Australia takes 17h 35m

Direct flights go from Houston to Australia every day.

There are 269 airports in Australia. From Houston there are direct flights to Sydney Kingsford Smith (SYD).

Search flight deals

Frequently asked questions about flying from Houston to Australia

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 August 2026, 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
Delta	PriceFrom $203	Free Cancellation	Rating 7.8 8,503 reviews	Search Delta flights
Qantas Airways	PriceFrom $447	Free Cancellation	Rating 7.5 1,083 reviews	Search Qantas Airways flights
Fiji Airways	PriceFrom $665	Free Cancellation	Rating 8.0 254 reviews	Search Fiji Airways flights
Air Canada	PriceFrom $782	Free Cancellation	Rating 7.1 11,480 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $818	Free Cancellation	Rating 8.0 662 reviews	Search Air New Zealand flights
American Airlines	PriceFrom $833	Free Cancellation	Rating 7.1 11,947 reviews	Search American Airlines flights
United Airlines	PriceFrom $839	Free Cancellation	Rating 7.4 10,105 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.