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Cheap flights from Houston to Australia from $518

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 2/10. 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

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Multiple Airlines Logo
5:00 am - 12:35 pmIAH-SYD
38h 35m2 stops
Multiple Airlines Logo
2:00 pm - 11:15 pmSYD-IAH
26h 15m2 stops
$881Multiple Airlines
Find Deal
Sun, Nov 23 - Wed, Dec 3
Fiji Airways Logo
8:28 pm - 11:45 amIAH-SYD
24h 17m2 stops
Fiji Airways Logo
1:15 pm - 8:02 pmSYD-IAH
21h 47m2 stops
$968Fiji Airways
Find Deal
Tue, May 5 - Tue, May 19
Air New Zealand Logo
8:05 pm - 8:45 amIAH-SYD
19h 40m1 stop
Air New Zealand Logo
9:55 am - 2:05 pmSYD-IAH
21h 10m1 stop
$1,014Air New Zealand
Find Deal
Sun, Nov 23 - Wed, Dec 3
Air New Zealand Logo
8:05 pm - 8:45 amIAH-SYD
19h 40m1 stop
Air New Zealand Logo
11:45 am - 2:05 pmSYD-IAH
19h 20m1 stop
$1,037Air New Zealand
Find Deal
Sun, Nov 23 - Wed, Dec 3
American Airlines Logo
4:36 pm - 9:30 amIAH-MEL
23h 54m2 stops
American Airlines Logo
12:00 pm - 8:00 pmMEL-IAH
24h 00m2 stops
$1,435American Airlines
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Mon, Feb 16 - Mon, Mar 9
American Airlines Logo
4:22 pm - 6:55 amHOU-SYD
21h 33m1 stop
American Airlines Logo
1:05 pm - 6:01 pmSYD-HOU
20h 56m1 stop
$1,446American Airlines
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Tue, Feb 24 - Wed, Mar 11
United Airlines Logo
9:30 pm - 7:30 amIAH-BNE
42h 00m1 stop
United Airlines Logo
10:40 am - 5:03 pmBNE-IAH
21h 23m1 stop
$1,469United Airlines
Find Deal
Sat, Feb 28 - Wed, Mar 11
United Airlines Logo
9:30 pm - 7:30 amIAH-BNE
42h 00m1 stop
United Airlines Logo
10:40 am - 5:03 pmBNE-IAH
21h 23m1 stop
$1,470United Airlines
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Sat, Feb 28 - Wed, Mar 11
Qantas Airways Logo
4:45 pm - 5:20 pmIAH-PER
34h 35m2 stops
Qantas Airways Logo
10:40 pm - 4:15 pmPER-IAH
31h 35m2 stops
$1,635Qantas Airways
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Sat, Dec 6 - Sat, Dec 13
Qantas Airways Logo
4:45 pm - 2:15 pmIAH-PER
31h 30m2 stops
Qantas Airways Logo
10:40 pm - 4:15 pmPER-IAH
31h 35m2 stops
$1,658Qantas Airways
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Fri, Dec 5 - Sat, Dec 13

Air New Zealand flights from Houston to Australia

Our best Air New Zealand deals on Houston to Australia flight tickets
Air New Zealand
Nov 23
IAH8:05 pmHouston George Bush Intcntl
19h 40m
1 stop
SYD8:45 amSydney Kingsford Smith
Dec 3
SYD9:55 amSydney Kingsford Smith
21h 10m
1 stop
IAH2:05 pmHouston George Bush Intcntl
$1,014
Find similar
Air New Zealand
Nov 23
IAH8:05 pmHouston George Bush Intcntl
19h 40m
1 stop
SYD8:45 amSydney Kingsford Smith
Dec 3
SYD11:45 amSydney Kingsford Smith
19h 20m
1 stop
IAH2:05 pmHouston George Bush Intcntl
$1,037
Find similar
Air New Zealand
Nov 29
IAH9:52 pmHouston George Bush Intcntl
51h 13m
2 stops
SYD6:05 pmSydney Kingsford Smith
Dec 8
SYD9:55 amSydney Kingsford Smith
21h 10m
1 stop
IAH2:05 pmHouston George Bush Intcntl
$1,056
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Fiji Airways flights from Houston to Australia

Our best Fiji Airways deals on Houston to Australia flight tickets
Fiji Airways
May 5
IAH8:28 pmHouston George Bush Intcntl
24h 17m
2 stops
SYD11:45 amSydney Kingsford Smith
May 19
SYD1:15 pmSydney Kingsford Smith
21h 47m
2 stops
IAH8:02 pmHouston George Bush Intcntl
$968
Find similar
Fiji Airways
Feb 3
IAH6:10 pmHouston George Bush Intcntl
25h 25m
2 stops
SYD12:35 pmSydney Kingsford Smith
Feb 24
SYD2:00 pmSydney Kingsford Smith
22h 01m
2 stops
IAH7:01 pmHouston George Bush Intcntl
$974
Find similar
Fiji Airways
May 2
IAH8:28 pmHouston George Bush Intcntl
24h 17m
2 stops
SYD11:45 amSydney Kingsford Smith
May 16
SYD1:15 pmSydney Kingsford Smith
21h 47m
2 stops
IAH8:02 pmHouston George Bush Intcntl
$985
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 November 6, 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 11/23

5:00 am-12:35 pm

2 stops38h 35m

Sydney Kingsford Smith

Wed 12/3

2:00 pm-11:15 pm

2 stops26h 15m

$881

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 5/5

8:28 pm-11:45 am

2 stops24h 17m

Sydney Kingsford Smith

Tue 5/19

1:15 pm-8:02 pm

2 stops21h 47m

$968

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 11/23

8:05 pm-8:45 am

1 stop19h 40m

Sydney Kingsford Smith

Wed 12/3

9:55 am-2:05 pm

1 stop21h 10m

$1,014

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 11/23

8:05 pm-8:45 am

1 stop19h 40m

Sydney Kingsford Smith

Wed 12/3

11:45 am-2:05 pm

1 stop19h 20m

$1,037

HoustonMelbourne

IAH - MEL

IAHMEL

Houston George Bush Intcntl

Mon 2/16

4:36 pm-9:30 am

2 stops23h 54m

Melbourne

Mon 3/9

12:00 pm-8:00 pm

2 stops24h 00m

$1,435

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 2/24

4:22 pm-6:55 am

1 stop21h 33m

Sydney Kingsford Smith

Wed 3/11

1:05 pm-6:01 pm

1 stop20h 56m

$1,446

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Sat 2/28

9:30 pm-7:30 am

1 stop42h 00m

Brisbane

Wed 3/11

10:40 am-5:03 pm

1 stop21h 23m

$1,469

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Sat 2/28

9:30 pm-7:30 am

1 stop42h 00m

Brisbane

Wed 3/11

10:40 am-5:03 pm

1 stop21h 23m

$1,470

HoustonPerth

IAH - PER

IAHPER

Houston George Bush Intcntl

Sat 12/6

4:45 pm-5:20 pm

2 stops34h 35m

Perth

Sat 12/13

10:40 pm-4:15 pm

2 stops31h 35m

$1,635

HoustonPerth

IAH - PER

IAHPER

Houston George Bush Intcntl

Fri 12/5

4:45 pm-2:15 pm

2 stops31h 30m

Perth

Sat 12/13

10:40 pm-4:15 pm

2 stops31h 35m

$1,658

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 $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 $1,655 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 $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)
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
8,001 reviews
Search Delta flights
Qantas AirwaysPriceFrom $655Free CancellationRating
7.5
929 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $684Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
Air New ZealandPriceFrom $783Free CancellationRating
8.0
526 reviews
Search Air New Zealand flights
Fiji AirwaysPriceFrom $790Free CancellationRating
8.1
209 reviews
Search Fiji Airways flights
United AirlinesPriceFrom $839Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights
Air CanadaPriceFrom $998Free CancellationRating
7.1
10,416 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.

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