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Cheap flights from Houston George Bush Intcntl Airport to Australia from $548

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 George Bush Intcntl Airport to Australia departing on 11/9. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from Houston George Bush Intcntl Airport to Australia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:02 pm - 7:30 am
IAH
-
SYD
24h 28m
1 stop
Multiple Airlines Logo
1:15 pm - 11:26 am
SYD
-
IAH
37h 11m
2 stops
$1,080Multiple Airlines
Sat, Sep 5 - Fri, Sep 11
Multiple Airlines Logo
9:55 pm - 7:30 am
IAH
-
SYD
41h 35m
1 stop
Multiple Airlines Logo
2:15 pm - 11:26 am
SYD
-
IAH
37h 11m
2 stops
$1,089Multiple Airlines
Tue, Oct 6 - Fri, Oct 16
Qantas Airways Logo
3:19 pm - 7:00 pm
IAH
-
ADL
35h 11m
2 stops
Qantas Airways Logo
6:00 am - 2:46 pm
ADL
-
IAH
25h 16m
2 stops
$1,518Qantas Airways
Fri, Nov 13 - Sun, Nov 29
Qantas Airways Logo
3:19 pm - 7:00 pm
IAH
-
ADL
35h 11m
2 stops
Qantas Airways Logo
6:00 am - 2:46 pm
ADL
-
IAH
25h 16m
2 stops
$1,519Qantas Airways
Fri, Nov 13 - Sun, Nov 29
United Airlines Logo
8:25 pm - 1:55 pm
IAH
-
ADL
25h 00m
1 stop
United Airlines Logo
7:55 pm - 8:00 am
ADL
-
IAH
28h 35m
1 stop
$1,544United Airlines
Fri, Nov 13 - Sun, Nov 29
United Airlines Logo
6:31 pm - 1:00 pm
IAH
-
ADL
25h 59m
2 stops
United Airlines Logo
7:55 pm - 8:00 am
ADL
-
IAH
28h 35m
1 stop
$1,547United Airlines
Fri, Nov 13 - Sun, Nov 29
Air New Zealand Logo
7:55 pm - 10:55 am
IAH
-
ADL
22h 30m
1 stop
Air New Zealand Logo
6:30 pm - 2:15 pm
ADL
-
IAH
36h 15m
2 stops
$1,553Air New Zealand
Tue, Dec 1 - Mon, Dec 21
Air New Zealand Logo
7:55 pm - 4:35 pm
IAH
-
ADL
28h 10m
2 stops
Air New Zealand Logo
6:30 pm - 2:15 pm
ADL
-
IAH
36h 15m
2 stops
$1,577Air New Zealand
Tue, Dec 1 - Mon, Dec 21
Air Canada Logo
4:50 pm - 10:40 am
IAH
-
CBR
26h 50m
2 stops
Air Canada Logo
6:20 am - 3:51 pm
CBR
-
IAH
24h 31m
2 stops
$1,586Air Canada
Wed, Aug 19 - Wed, Aug 26
Air Canada Logo
4:45 pm - 4:10 pm
IAH
-
PER
34h 25m
2 stops
Air Canada Logo
10:40 pm - 3:37 pm
PER
-
IAH
29h 57m
2 stops
$1,761Air Canada
Mon, Sep 14 - Sun, Sep 27

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Delta flights from Houston George Bush Intcntl Airport to Australia

Our best Delta deals on Houston George Bush Intcntl Airport to Australia flight tickets
Delta
Jul 26
IAH2:35 pmHouston George Bush Intcntl
25h 15m
2 stops
SYD6:50 amSydney Kingsford Smith
Aug 9
SYD9:15 amSydney Kingsford Smith
27h 35m
2 stops
IAH9:50 pmHouston George Bush Intcntl
$1,457
Delta
Jul 26
IAH8:05 amHouston George Bush Intcntl
31h 45m
2 stops
SYD6:50 amSydney Kingsford Smith
Aug 8
SYD9:15 amSydney Kingsford Smith
20h 59m
1 stop
IAH3:14 pmHouston George Bush Intcntl
$1,521
Delta
Aug 1
IAH10:49 amHouston George Bush Intcntl
29h 01m
2 stops
SYD6:50 amSydney Kingsford Smith
Aug 7
SYD9:15 amSydney Kingsford Smith
29h 37m
2 stops
IAH11:52 pmHouston George Bush Intcntl
$1,571

Air New Zealand flights from Houston George Bush Intcntl Airport to Australia

Our best Air New Zealand deals on Houston George Bush Intcntl Airport to Australia flight tickets
Air New Zealand
Nov 18
IAH4:25 pmHouston George Bush Intcntl
24h 05m
1 stop
MEL9:30 amMelbourne
Jan 18
MEL12:10 pmMelbourne
19h 05m
1 stop
IAH2:15 pmHouston George Bush Intcntl
$1,454
Air New Zealand
Nov 1
IAH7:55 pmHouston George Bush Intcntl
22h 00m
1 stop
MEL10:55 amMelbourne
Nov 11
MEL11:30 amMelbourne
26h 07m
1 stop
IAH8:37 pmHouston George Bush Intcntl
$1,467
Air New Zealand
Oct 12
IAH8:55 pmHouston George Bush Intcntl
22h 10m
1 stop
BNE10:05 amBrisbane
Oct 21
BNE8:40 amBrisbane
21h 45m
1 stop
IAH3:25 pmHouston George Bush Intcntl
$1,487

momondo Fare Finder

 
Customize your flight search to find flights from Houston George Bush Intcntl Airport 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 July 24, 2026.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 9/5

4:02 pm-7:30 am

1 stop24h 28m

Sydney Kingsford Smith

Fri 9/11

1:15 pm-11:26 am

2 stops37h 11m

$1,080

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 10/6

9:55 pm-7:30 am

1 stop41h 35m

Sydney Kingsford Smith

Fri 10/16

2:15 pm-11:26 am

2 stops37h 11m

$1,089

HoustonAdelaide

IAH - ADL

IAHADL

Houston George Bush Intcntl

Fri 11/13

3:19 pm-7:00 pm

2 stops35h 11m

Adelaide

Sun 11/29

6:00 am-2:46 pm

2 stops25h 16m

$1,518

HoustonAdelaide

IAH - ADL

IAHADL

Houston George Bush Intcntl

Fri 11/13

3:19 pm-7:00 pm

2 stops35h 11m

Adelaide

Sun 11/29

6:00 am-2:46 pm

2 stops25h 16m

$1,519

HoustonAdelaide

IAH - ADL

IAHADL

Houston George Bush Intcntl

Fri 11/13

8:25 pm-1:55 pm

1 stop25h 00m

Adelaide

Sun 11/29

7:55 pm-8:00 am

1 stop28h 35m

$1,544

HoustonAdelaide

IAH - ADL

IAHADL

Houston George Bush Intcntl

Fri 11/13

6:31 pm-1:00 pm

2 stops25h 59m

Adelaide

Sun 11/29

7:55 pm-8:00 am

1 stop28h 35m

$1,547

HoustonAdelaide

IAH - ADL

IAHADL

Houston George Bush Intcntl

Tue 12/1

7:55 pm-10:55 am

1 stop22h 30m

Adelaide

Mon 12/21

6:30 pm-2:15 pm

2 stops36h 15m

$1,553

HoustonAdelaide

IAH - ADL

IAHADL

Houston George Bush Intcntl

Tue 12/1

7:55 pm-4:35 pm

2 stops28h 10m

Adelaide

Mon 12/21

6:30 pm-2:15 pm

2 stops36h 15m

$1,577
Quickest round-trip

HoustonCanberra

IAH - CBR

IAHCBR

Houston George Bush Intcntl

Wed 8/19

4:50 pm-10:40 am

2 stops26h 50m

Canberra

Wed 8/26

6:20 am-3:51 pm

2 stops24h 31m

$1,586

HoustonPerth

IAH - PER

IAHPER

Houston George Bush Intcntl

Mon 9/14

4:45 pm-4:10 pm

2 stops34h 25m

Perth

Sun 9/27

10:40 pm-3:37 pm

2 stops29h 57m

$1,761

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 George Bush Intcntl Airport 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 May is, on average, the cheapest month to fly to Australia from Houston George Bush Intcntl Airport, with most prices found around $1,058. If you aren’t able to travel during the month of May, then book flights to Australia from Houston George Bush Intcntl Airport during November instead. Flights to Australia in November, while not as cheap as those in May, still average around $1,179.

What is the cheapest day to depart on your flight to Australia?

The cheapest day to depart from Houston George Bush Intcntl Airport to Australia is on a Monday. Travelers who choose to depart for Australia on a Monday will often find tickets for as low as $1,480. On the other hand, Thursday is the most expensive day to depart from Houston George Bush Intcntl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,796.

What is the cheapest Houston George Bush Intcntl to Australia flight route?

Fly from Houston George Bush Intcntl to Sydney Kingsford Smith for the best Houston George Bush Intcntl - Australia flight prices

How far in advance should I book a flight from Houston George Bush Intcntl Airport to Australia?

You are more likely to see cheaper flights to Australia from Houston George Bush Intcntl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,508 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Houston George Bush Intcntl Airport for as low as $1,158 on momondo.

What cabin class options are available on Houston George Bush Intcntl Airport to Australia flights?

There are 3 cabin classes available to choose from on Houston George Bush Intcntl Airport to Australia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Houston George Bush Intcntl Airport to Australia flights?

You could potentially save up to 37% on your flight if you consider stops on a Houston George Bush Intcntl Airport to Australia flight.

Cheap Houston George Bush Intcntl Airport to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston George Bush Intcntl Airport to Australia

Fastest flight time

17h 35m

Direct flights

Every day

Airports in Australia

269 airports
The fastest flight from Houston George Bush Intcntl Airport to Australia takes 17h 35m
Direct flights go from Houston George Bush Intcntl Airport to Australia every day.
There are 269 airports in Australia. From Houston George Bush Intcntl Airport there are direct flights to Sydney Kingsford Smith (SYD).
Search flight deals

Frequently asked questions about flying from Houston George Bush Intcntl Airport to Australia

  • When did momondo last update prices for flights from Houston George Bush Intcntl Airport to Australia?

    Prices for flights from Houston George Bush Intcntl Airport to Australia are updated daily.

  • How many operators does momondo search for flights from Houston George Bush Intcntl Airport to Australia?

  • How old do you have to be to fly from Houston George Bush Intcntl Airport to Australia?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston George Bush Intcntl Airport to Australia.

  • What documentation or ID do you need to fly to Australia?

    The travel and health documents required for your trip to Australia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Australia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Houston George Bush Intcntl Airport to Australia?

Best airlines flying from Houston George Bush Intcntl Airport to Australia

Compare and see reviews for airlines that fly from Houston George Bush Intcntl Airport to Australia with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $203Free CancellationRating
7.8
8,483 reviews
Search Delta flights
Air CanadaPriceFrom $782Free CancellationRating
7.1
11,377 reviews
Search Air Canada flights
Qantas AirwaysPriceFrom $794Free CancellationRating
7.5
1,067 reviews
Search Qantas Airways flights
Air New ZealandPriceFrom $818Free CancellationRating
8.0
654 reviews
Search Air New Zealand flights
American AirlinesPriceFrom $844Free CancellationRating
7.1
11,842 reviews
Search American Airlines flights
United AirlinesPriceFrom $849Free CancellationRating
7.4
10,026 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. All flights to Australia from Houston on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Houston to Australia?

Once you have performed a search for Houston to Australia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Houston to Australia right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Australia from Houston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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