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Cheap flights from Houston to Australia from $421

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 2/11. 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

Enter your travel dates to find the best prices.
Air Canada Logo
2:26 pm - 9:35 amIAH-SYD
50h 09m2 stops
Air Canada Logo
11:20 am - 1:34 pmSYD-IAH
43h 14m2 stops
$920Air Canada
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Mon, Feb 9 - 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
Multiple Airlines Logo
4:13 pm - 7:25 amIAH-SYD
22h 12m1 stop
Multiple Airlines Logo
2:00 pm - 12:22 amSYD-IAH
27h 22m2 stops
$929Multiple Airlines
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Thu, Jan 22 - Wed, Feb 4
Multiple Airlines Logo
4:13 pm - 7:25 amIAH-SYD
22h 12m1 stop
Multiple Airlines Logo
2:00 pm - 5:55 amSYD-IAH
32h 55m3 stops
$962Multiple Airlines
Find Deal
Thu, Jan 22 - Wed, Feb 4
Delta Logo
10:35 am - 7:30 amHOU-SYD
28h 55m2 stops
Delta Logo
1:15 pm - 10:28 pmSYD-HOU
25h 13m2 stops
$1,165Delta
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Tue, Mar 10 - Tue, Mar 24
Delta Logo
5:45 am - 6:50 amHOU-SYD
32h 05m2 stops
Delta Logo
10:40 am - 10:33 pmSYD-HOU
28h 53m2 stops
$1,215Delta
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Sat, Jan 24 - Sun, Feb 8
American Airlines Logo
2:32 pm - 5:00 amHOU-BNE
23h 28m2 stops
American Airlines Logo
8:35 pm - 8:18 amBNE-HOU
26h 43m2 stops
$1,439American Airlines
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Tue, May 19 - Wed, May 27
American Airlines Logo
10:14 am - 6:55 amHOU-SYD
28h 41m1 stop
American Airlines Logo
1:05 pm - 7:50 pmSYD-HOU
22h 45m1 stop
$1,445American Airlines
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Tue, Mar 10 - Tue, Mar 24
Qantas Airways Logo
4:22 pm - 5:10 pmHOU-BNE
32h 48m2 stops
Qantas Airways Logo
8:30 am - 11:48 amBNE-HOU
42h 18m2 stops
$1,722Qantas Airways
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Wed, Feb 18 - Thu, Mar 12
Qantas Airways Logo
12:16 pm - 3:50 pmHOU-AVV
34h 34m2 stops
Qantas Airways Logo
6:00 am - 3:50 pmAVV-HOU
25h 50m2 stops
$2,099Qantas Airways
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Fri, Mar 6 - Thu, Mar 19

Air Canada flights from Houston to Australia

Our best Air Canada deals on Houston to Australia flight tickets
Air Canada
Feb 9
IAH2:26 pmHouston George Bush Intcntl
50h 09m
2 stops
SYD9:35 amSydney Kingsford Smith
Feb 17
SYD11:20 amSydney Kingsford Smith
43h 14m
2 stops
IAH1:34 pmHouston George Bush Intcntl
$920
Find similar
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 10
IAH5:25 pmHouston George Bush Intcntl
23h 10m
1 stop
SYD9:35 amSydney Kingsford Smith
Feb 24
SYD11:20 amSydney Kingsford Smith
43h 14m
2 stops
IAH1:34 pmHouston George Bush Intcntl
$928
Find similar

Qantas Airways flights from Houston to Australia

Our best Qantas Airways deals on Houston to Australia flight tickets
Qantas Airways
Mar 10
IAH7:42 pmHouston George Bush Intcntl
21h 18m
1 stop
SYD9:00 amSydney Kingsford Smith
Mar 24
SYD11:20 amSydney Kingsford Smith
23h 51m
1 stop
IAH7:11 pmHouston George Bush Intcntl
$1,112
Find similar
Qantas Airways
Mar 10
IAH7:42 pmHouston George Bush Intcntl
21h 18m
1 stop
SYD9:00 amSydney Kingsford Smith
Mar 24
SYD11:20 amSydney Kingsford Smith
23h 51m
1 stop
IAH7:11 pmHouston George Bush Intcntl
$1,113
Find similar
Qantas Airways
Jan 21
IAH2:12 pmHouston George Bush Intcntl
26h 18m
1 stop
MEL9:30 amMelbourne
Mar 19
MEL12:00 pmMelbourne
23h 11m
1 stop
IAH7:11 pmHouston George Bush Intcntl
$1,130
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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 November 29, 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

Mon 2/9

2:26 pm-9:35 am

2 stops50h 09m

Sydney Kingsford Smith

Tue 2/17

11:20 am-1:34 pm

2 stops43h 14m

$920

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

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 1/22

4:13 pm-7:25 am

1 stop22h 12m

Sydney Kingsford Smith

Wed 2/4

2:00 pm-12:22 am

2 stops27h 22m

$929

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 1/22

4:13 pm-7:25 am

1 stop22h 12m

Sydney Kingsford Smith

Wed 2/4

2:00 pm-5:55 am

3 stops32h 55m

$962

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 3/10

10:35 am-7:30 am

2 stops28h 55m

Sydney Kingsford Smith

Tue 3/24

1:15 pm-10:28 pm

2 stops25h 13m

$1,165

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Sat 1/24

5:45 am-6:50 am

2 stops32h 05m

Sydney Kingsford Smith

Sun 2/8

10:40 am-10:33 pm

2 stops28h 53m

$1,215

HoustonBrisbane

HOU - BNE

HOUBNE

Houston Hobby

Tue 5/19

2:32 pm-5:00 am

2 stops23h 28m

Brisbane

Wed 5/27

8:35 pm-8:18 am

2 stops26h 43m

$1,439

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 3/10

10:14 am-6:55 am

1 stop28h 41m

Sydney Kingsford Smith

Tue 3/24

1:05 pm-7:50 pm

1 stop22h 45m

$1,445

HoustonBrisbane

HOU - BNE

HOUBNE

Houston Hobby

Wed 2/18

4:22 pm-5:10 pm

2 stops32h 48m

Brisbane

Thu 3/12

8:30 am-11:48 am

2 stops42h 18m

$1,722

HoustonMelbourne

HOU - AVV

HOUAVV

Houston Hobby

Fri 3/6

12:16 pm-3:50 pm

2 stops34h 34m

Melbourne Avalon

Thu 3/19

6:00 am-3:50 pm

2 stops25h 50m

$2,099

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 $1,724 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 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
946 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $684Free CancellationRating
7.2
11,046 reviews
Search American Airlines flights
Air CanadaPriceFrom $750Free CancellationRating
7.1
10,484 reviews
Search Air Canada flights
Air New ZealandPriceFrom $783Free CancellationRating
8.0
538 reviews
Search Air New Zealand flights
Fiji AirwaysPriceFrom $790Free CancellationRating
8.1
209 reviews
Search Fiji Airways flights
United AirlinesPriceFrom $839Free CancellationRating
7.4
9,057 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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