Cheap flights from Houston to Sydney from $448

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 Sydney departing on 3/4. 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

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:34 pm - 10:05 pm
IAH
-
SYD
36h 31m
2 stops
Multiple Airlines Logo
6:00 am - 12:30 am
SYD
-
IAH
35h 30m
2 stops
$933Multiple Airlines
Wed, Feb 25 - Wed, Mar 4
Multiple Airlines Logo
4:08 pm - 10:05 pm
IAH
-
SYD
36h 57m
2 stops
Multiple Airlines Logo
6:00 am - 12:30 am
SYD
-
IAH
35h 30m
2 stops
$935Multiple Airlines
Tue, Feb 10 - Tue, Feb 17
Multiple Airlines Logo
4:22 pm - 12:45 pm
IAH
-
SYD
28h 23m
2 stops
Multiple Airlines Logo
6:00 am - 12:11 am
SYD
-
IAH
33h 11m
2 stops
$942Multiple Airlines
Sat, Mar 28 - Sun, Apr 12
Multiple Airlines Logo
4:08 pm - 12:35 pm
IAH
-
SYD
27h 27m
2 stops
Multiple Airlines Logo
2:00 pm - 12:30 am
SYD
-
IAH
27h 30m
2 stops
$971Multiple Airlines
Sun, Feb 8 - Sun, Feb 22
American Airlines Logo
4:20 pm - 6:55 am
HOU
-
SYD
22h 35m
1 stop
American Airlines Logo
12:00 pm - 3:50 pm
SYD
-
HOU
18h 50m
1 stop
$1,452American Airlines
Sun, Mar 22 - Sun, Apr 5
American Airlines Logo
4:15 pm - 6:55 am
HOU
-
SYD
23h 40m
1 stop
American Airlines Logo
12:00 pm - 7:52 pm
SYD
-
HOU
22h 52m
1 stop
$1,453American Airlines
Tue, Jun 23 - Wed, Jul 1
American Airlines Logo
4:19 pm - 7:05 am
HOU
-
SYD
23h 46m
2 stops
American Airlines Logo
9:10 am - 3:49 pm
SYD
-
HOU
21h 39m
2 stops
$1,455American Airlines
Tue, Apr 21 - Tue, May 5
American Airlines Logo
8:21 pm - 6:55 am
HOU
-
SYD
19h 34m
1 stop
American Airlines Logo
9:10 am - 3:49 pm
SYD
-
HOU
21h 39m
2 stops
$1,456American Airlines
Mon, May 4 - Wed, May 13
Delta Logo
2:13 pm - 7:30 am
HOU
-
SYD
25h 17m
2 stops
Delta Logo
1:15 pm - 10:42 pm
SYD
-
HOU
25h 27m
2 stops
$1,471Delta
Tue, Mar 10 - Tue, Mar 24
Delta Logo
5:25 am - 6:50 am
HOU
-
SYD
32h 25m
2 stops
Delta Logo
9:40 am - 10:42 pm
SYD
-
HOU
29h 02m
2 stops
$1,473Delta
Tue, Feb 24 - Wed, Mar 11

American Airlines flights from Houston to Sydney

Our best American Airlines deals on Houston to Sydney flight tickets
American Airlines
Mar 22
HOU4:20 pmHouston Hobby
22h 35m
1 stop
SYD6:55 amSydney Kingsford Smith
Apr 5
SYD12:00 pmSydney Kingsford Smith
18h 50m
1 stop
HOU3:50 pmHouston Hobby
$1,452
American Airlines
Jun 23
HOU4:15 pmHouston Hobby
23h 40m
1 stop
SYD6:55 amSydney Kingsford Smith
Jul 1
SYD12:00 pmSydney Kingsford Smith
22h 52m
1 stop
HOU7:52 pmHouston Hobby
$1,453
American Airlines
Apr 21
HOU4:19 pmHouston Hobby
23h 46m
2 stops
SYD7:05 amSydney Kingsford Smith
May 5
SYD9:10 amSydney Kingsford Smith
21h 39m
2 stops
HOU3:49 pmHouston Hobby
$1,455

Delta flights from Houston to Sydney

Our best Delta deals on Houston to Sydney flight tickets
Delta
Mar 10
HOU2:13 pmHouston Hobby
25h 17m
2 stops
SYD7:30 amSydney Kingsford Smith
Mar 24
SYD1:15 pmSydney Kingsford Smith
25h 27m
2 stops
HOU10:42 pmHouston Hobby
$1,471
Delta
Feb 24
HOU5:25 amHouston Hobby
32h 25m
2 stops
SYD6:50 amSydney Kingsford Smith
Mar 11
SYD9:40 amSydney Kingsford Smith
29h 02m
2 stops
HOU10:42 pmHouston Hobby
$1,473
Delta
Feb 5
HOU5:45 amHouston Hobby
32h 05m
2 stops
SYD6:50 amSydney Kingsford Smith
Feb 23
SYD2:15 pmSydney Kingsford Smith
36h 46m
2 stops
HOU10:01 amHouston Hobby
$1,521

momondo Fare Finder

 
Customize your flight search to find flights from Houston to Sydney 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 January 29, 2026.
Use the filters below to find and compare flights from Houston to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 2/25

4:34 pm-10:05 pm

2 stops36h 31m

Sydney Kingsford Smith

Wed 3/4

6:00 am-12:30 am

2 stops35h 30m

$933

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 2/10

4:08 pm-10:05 pm

2 stops36h 57m

Sydney Kingsford Smith

Tue 2/17

6:00 am-12:30 am

2 stops35h 30m

$935

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 3/28

4:22 pm-12:45 pm

2 stops28h 23m

Sydney Kingsford Smith

Sun 4/12

6:00 am-12:11 am

2 stops33h 11m

$942

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 2/8

4:08 pm-12:35 pm

2 stops27h 27m

Sydney Kingsford Smith

Sun 2/22

2:00 pm-12:30 am

2 stops27h 30m

$971

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Sun 3/22

4:20 pm-6:55 am

1 stop22h 35m

Sydney Kingsford Smith

Sun 4/5

12:00 pm-3:50 pm

1 stop18h 50m

$1,452

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 6/23

4:15 pm-6:55 am

1 stop23h 40m

Sydney Kingsford Smith

Wed 7/1

12:00 pm-7:52 pm

1 stop22h 52m

$1,453

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 4/21

4:19 pm-7:05 am

2 stops23h 46m

Sydney Kingsford Smith

Tue 5/5

9:10 am-3:49 pm

2 stops21h 39m

$1,455

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 5/4

8:21 pm-6:55 am

1 stop19h 34m

Sydney Kingsford Smith

Wed 5/13

9:10 am-3:49 pm

2 stops21h 39m

$1,456

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 3/10

2:13 pm-7:30 am

2 stops25h 17m

Sydney Kingsford Smith

Tue 3/24

1:15 pm-10:42 pm

2 stops25h 27m

$1,471

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 2/24

5:25 am-6:50 am

2 stops32h 25m

Sydney Kingsford Smith

Wed 3/11

9:40 am-10:42 pm

2 stops29h 02m

$1,473

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 Sydney from

How to get the cheapest flight ticket from Houston to Sydney

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 Sydney?

In general, July is the cheapest month to fly from Houston to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $853. If you are unable to visit Sydney during the month of July, then departing from Houston during the month March is also very affordable. Most momondo users find prices during this month for around $871.

What is the cheapest Houston to Sydney Kingsford Smith flight route?

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

How far in advance should I book a flight to Sydney?

You are more likely to see cheaper flights to Sydney from Houston when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,152 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Houston for as low as $945 on momondo.

What cabin class options are available on Houston to Sydney Kingsford Smith flights?

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

Cheap Houston to Sydney flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston to Sydney

Fastest flight time

17h 30m

Direct flights

Mon, Wed, Thu, Fri, Sat and Sun

Airports in Sydney

1 airport
The fastest flight from Houston to Sydney takes 17h 30m
Direct flights go from Houston to Sydney on Monday, Wednesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport in Sydney. From Houston there are direct flights to Sydney Kingsford Smith (SYD).
  • How far is Houston to Sydney Kingsford Smith by plane?

    A flight from Houston to Sydney Kingsford Smith will travel around 8580.8 mi. By plane, this route typically takes 17h 30m.

  • When did momondo last update prices for flights from Houston to Sydney Kingsford Smith Airport?

    Prices for flights from Houston to Sydney Kingsford Smith Airport were last updated today.

  • How many operators does momondo search for flights from Houston to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Houston to Sydney Kingsford Smith Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Houston to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Houston to Sydney

Compare and see reviews for airlines that fly from Houston to Sydney with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $337Free CancellationRating
7.9
8,127 reviews
Search Delta flights
Qantas AirwaysPriceFrom $666Free CancellationRating
7.5
981 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $820Free CancellationRating
7.2
11,206 reviews
Search American Airlines flights
United AirlinesPriceFrom $839Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights
Air New ZealandPriceFrom $957Free CancellationRating
8.0
577 reviews
Search Air New Zealand flights
Fiji AirwaysPriceFrom $971Free CancellationRating
8.0
223 reviews
Search Fiji Airways flights
Air CanadaPriceFrom $997Free CancellationRating
7.1
10,667 reviews
Search Air Canada flights

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Bondi Beach
Katoomba
Wollongong
Randwick
Penrith
Coogee
Manly
Lithgow
Leura
Cronulla
Charlestown
Terrigal
Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Houston to Sydney?

It is quick and easy to find Houston to Sydney flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sydney that suits you.

Can I find flights from Houston to Sydney with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Houston to Sydney flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sydney from Houston.

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

Yes momondo offers price alerts on flights to Sydney 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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1 adult
Sat 2/28
Sat 3/7

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