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Cheap flights from Houston to Australia from $422

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 2/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

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Multiple Airlines Logo
4:13 pm - 10:25 amIAH-BNE
26h 12m2 stops
Multiple Airlines Logo
11:25 am - 12:19 amBNE-IAH
28h 54m2 stops
$870Multiple Airlines
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Wed, Feb 4 - Wed, Feb 11
Multiple Airlines Logo
4:13 pm - 12:35 pmIAH-SYD
27h 22m2 stops
Multiple Airlines Logo
6:00 am - 12:57 amSYD-IAH
35h 57m2 stops
$888Multiple Airlines
Find Deal
Wed, Feb 11 - Tue, Feb 17
Air Canada Logo
2:26 pm - 8:45 amIAH-BNE
50h 19m2 stops
Air Canada Logo
10:45 am - 1:34 pmBNE-IAH
42h 49m2 stops
$921Air Canada
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Tue, Feb 3 - Tue, Feb 17
Air Canada Logo
2:26 pm - 8:45 amIAH-BNE
50h 19m2 stops
Air Canada Logo
10:45 am - 1:34 pmBNE-IAH
42h 49m2 stops
$922Air Canada
Find Deal
Tue, Feb 3 - Tue, Feb 17
Air New Zealand Logo
8:05 pm - 10:55 amIAH-MEL
21h 50m1 stop
Air New Zealand Logo
12:10 pm - 2:05 pmMEL-IAH
18h 55m1 stop
$1,021Air New Zealand
Find Deal
Sun, Feb 1 - Wed, Feb 25
Air New Zealand Logo
8:05 pm - 9:25 amIAH-MEL
20h 20m1 stop
Air New Zealand Logo
9:05 am - 2:05 pmMEL-IAH
22h 00m2 stops
$1,024Air New Zealand
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Sun, Feb 1 - Wed, Feb 25
American Airlines Logo
4:55 pm - 6:55 amHOU-SYD
21h 00m1 stop
American Airlines Logo
2:05 pm - 4:12 pmSYD-HOU
19h 07m1 stop
$1,439American Airlines
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Sun, Jan 25 - Sun, Feb 8
American Airlines Logo
4:55 pm - 6:55 amHOU-SYD
21h 00m1 stop
American Airlines Logo
11:20 am - 4:12 pmSYD-HOU
21h 52m2 stops
$1,440American Airlines
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Sun, Jan 25 - Sun, Feb 8
Qantas Airways Logo
4:20 pm - 5:10 pmHOU-BNE
32h 50m2 stops
Qantas Airways Logo
8:30 am - 11:48 amBNE-HOU
42h 18m2 stops
$1,720Qantas Airways
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Wed, Feb 18 - Thu, Mar 12
Qantas Airways Logo
7:41 pm - 3:50 pmIAH-AVV
27h 09m2 stops
Qantas Airways Logo
8:55 pm - 5:51 pmAVV-IAH
36h 56m2 stops
$2,051Qantas Airways
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Fri, Mar 6 - Sat, Mar 14

Air New Zealand flights from Houston to Australia

Our best Air New Zealand deals on Houston to Australia flight tickets
Air New Zealand
Mar 10
IAH4:32 pmHouston George Bush Intcntl
26h 23m
2 stops
BNE9:55 amBrisbane
Mar 17
BNE11:10 amBrisbane
26h 21m
2 stops
IAH10:31 pmHouston George Bush Intcntl
$1,016
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Air New Zealand
Mar 2
IAH3:22 pmHouston George Bush Intcntl
26h 08m
2 stops
SYD10:30 amSydney Kingsford Smith
Mar 16
SYD11:45 amSydney Kingsford Smith
19h 20m
1 stop
IAH3:05 pmHouston George Bush Intcntl
$1,018
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Air New Zealand
Mar 10
IAH2:20 pmHouston George Bush Intcntl
25h 40m
2 stops
BNE7:00 amBrisbane
Mar 17
BNE11:10 amBrisbane
26h 21m
2 stops
IAH10:31 pmHouston George Bush Intcntl
$1,019
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Air Canada flights from Houston to Australia

Our best Air Canada deals on Houston to Australia flight tickets
Air Canada
Feb 3
IAH2:26 pmHouston George Bush Intcntl
50h 19m
2 stops
BNE8:45 amBrisbane
Feb 17
BNE10:45 amBrisbane
42h 49m
2 stops
IAH1:34 pmHouston George Bush Intcntl
$921
Find similar
Air Canada
Feb 9
IAH5:25 pmHouston George Bush Intcntl
23h 10m
1 stop
SYD9:35 amSydney Kingsford Smith
Feb 17
SYD11:20 amSydney Kingsford Smith
43h 14m
2 stops
IAH1:34 pmHouston George Bush Intcntl
$929
Find similar
Air Canada
Feb 9
IAH12:10 pmHouston George Bush Intcntl
52h 25m
3 stops
SYD9:35 amSydney Kingsford Smith
Feb 17
SYD11:20 amSydney Kingsford Smith
43h 14m
2 stops
IAH1:34 pmHouston George Bush Intcntl
$935
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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 2, 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

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Wed 2/4

4:13 pm-10:25 am

2 stops26h 12m

Brisbane

Wed 2/11

11:25 am-12:19 am

2 stops28h 54m

$870

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 2/11

4:13 pm-12:35 pm

2 stops27h 22m

Sydney Kingsford Smith

Tue 2/17

6:00 am-12:57 am

2 stops35h 57m

$888

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Tue 2/3

2:26 pm-8:45 am

2 stops50h 19m

Brisbane

Tue 2/17

10:45 am-1:34 pm

2 stops42h 49m

$921

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Tue 2/3

2:26 pm-8:45 am

2 stops50h 19m

Brisbane

Tue 2/17

10:45 am-1:34 pm

2 stops42h 49m

$922

HoustonMelbourne

IAH - MEL

IAHMEL

Houston George Bush Intcntl

Sun 2/1

8:05 pm-10:55 am

1 stop21h 50m

Melbourne

Wed 2/25

12:10 pm-2:05 pm

1 stop18h 55m

$1,021

HoustonMelbourne

IAH - MEL

IAHMEL

Houston George Bush Intcntl

Sun 2/1

8:05 pm-9:25 am

1 stop20h 20m

Melbourne

Wed 2/25

9:05 am-2:05 pm

2 stops22h 00m

$1,024

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Sun 1/25

4:55 pm-6:55 am

1 stop21h 00m

Sydney Kingsford Smith

Sun 2/8

2:05 pm-4:12 pm

1 stop19h 07m

$1,439

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Sun 1/25

4:55 pm-6:55 am

1 stop21h 00m

Sydney Kingsford Smith

Sun 2/8

11:20 am-4:12 pm

2 stops21h 52m

$1,440

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

$1,720

HoustonMelbourne

IAH - AVV

IAHAVV

Houston George Bush Intcntl

Fri 3/6

7:41 pm-3:50 pm

2 stops27h 09m

Melbourne Avalon

Sat 3/14

8:55 pm-5:51 pm

2 stops36h 56m

$2,051

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 April instead. Flights to Australia in April, while not as cheap as those in July, still average around $874.

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 $1,731 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 $1,076 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 35m

Direct flights

Every day

Airports in Australia

1 airport
The fastest flight from Houston to Australia takes 17h 35m
Direct flights go from Houston to Australia every day.
There is 1 airport near Australia: Sydney Kingsford Smith (SYD)
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  • 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
11,044 reviews
Search American Airlines flights
Air CanadaPriceFrom $750Free CancellationRating
7.1
10,496 reviews
Search Air Canada flights
Air New ZealandPriceFrom $783Free CancellationRating
8.0
541 reviews
Search Air New Zealand flights
Fiji AirwaysPriceFrom $790Free CancellationRating
8.1
209 reviews
Search Fiji Airways flights
United AirlinesPriceFrom $839Free CancellationRating
7.4
9,063 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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