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Cheap flights from Houston to Sydney from $773

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 15/11. 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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Cheap return flights

Air New Zealand Logo
20:05 - 08:45IAH-SYD
19h 40m1 stop
Air New Zealand Logo
11:45 - 14:05SYD-IAH
19h 20m1 stop
$1,517Air New Zealand
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Mon, 9 Feb - Sun, 22 Feb
Air New Zealand Logo
15:02 - 08:45IAH-SYD
24h 43m2 stops
Air New Zealand Logo
11:45 - 14:05SYD-IAH
19h 20m1 stop
$1,523Air New Zealand
Find Deal
Mon, 9 Feb - Sun, 22 Feb
Air New Zealand Logo
20:05 - 08:45IAH-SYD
19h 40m1 stop
Air New Zealand Logo
09:55 - 14:05SYD-IAH
21h 10m1 stop
$1,532Air New Zealand
Find Deal
Mon, 3 Nov - Sun, 16 Nov
Air New Zealand Logo
20:05 - 08:45IAH-SYD
19h 40m1 stop
Air New Zealand Logo
11:45 - 14:05SYD-IAH
19h 20m1 stop
$1,533Air New Zealand
Find Deal
Sun, 9 Nov - Sun, 23 Nov
Multiple Airlines Logo
06:44 - 09:00IAH-SYD
34h 16m2 stops
Multiple Airlines Logo
14:15 - 05:20SYD-IAH
31h 05m2 stops
$1,581Multiple Airlines
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Tue, 14 Oct - Tue, 21 Oct
Multiple Airlines Logo
06:44 - 12:45IAH-SYD
38h 01m2 stops
Multiple Airlines Logo
05:00 - 23:23SYD-IAH
34h 23m2 stops
$1,590Multiple Airlines
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Mon, 20 Oct - Sun, 2 Nov
Philippine Airlines Logo
19:49 - 09:50IAH-SYD
45h 01m2 stops
Philippine Airlines Logo
11:35 - 19:19SYD-IAH
48h 44m2 stops
$1,593Philippine Airlines
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Mon, 16 Feb - Mon, 23 Feb
Fiji Airways Logo
20:31 - 12:30HOU-SYD
23h 59m2 stops
Fiji Airways Logo
14:10 - 20:02SYD-HOU
21h 52m2 stops
$1,848Fiji Airways
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Tue, 10 Mar - Tue, 24 Mar
American Airlines Logo
12:15 - 06:55HOU-SYD
25h 40m1 stop
American Airlines Logo
14:05 - 23:57SYD-HOU
26h 52m1 stop
$2,169American Airlines
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Mon, 10 Nov - Sun, 23 Nov
American Airlines Logo
10:11 - 06:55HOU-SYD
27h 44m1 stop
American Airlines Logo
14:05 - 19:50SYD-HOU
22h 45m1 stop
$2,170American Airlines
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Mon, 10 Nov - Sun, 23 Nov

Air New Zealand flights from Houston to Sydney

Our best Air New Zealand deals on Houston to Sydney flight tickets
Air New Zealand
9 Feb
IAH20:05Houston George Bush Intcntl
19h 40m
1 stop
SYD08:45Sydney Kingsford Smith
22 Feb
SYD11:45Sydney Kingsford Smith
19h 20m
1 stop
IAH14:05Houston George Bush Intcntl
$1,517
Find similar
Air New Zealand
9 Feb
IAH15:02Houston George Bush Intcntl
24h 43m
2 stops
SYD08:45Sydney Kingsford Smith
22 Feb
SYD11:45Sydney Kingsford Smith
19h 20m
1 stop
IAH14:05Houston George Bush Intcntl
$1,523
Find similar
Air New Zealand
3 Nov
IAH20:05Houston George Bush Intcntl
19h 40m
1 stop
SYD08:45Sydney Kingsford Smith
16 Nov
SYD09:55Sydney Kingsford Smith
21h 10m
1 stop
IAH14:05Houston George Bush Intcntl
$1,532
Find similar

American Airlines flights from Houston to Sydney

Our best American Airlines deals on Houston to Sydney flight tickets
American Airlines
10 Nov
HOU12:15Houston Hobby
25h 40m
1 stop
SYD06:55Sydney Kingsford Smith
23 Nov
SYD14:05Sydney Kingsford Smith
26h 52m
1 stop
HOU23:57Houston Hobby
$2,169
Find similar
American Airlines
10 Nov
HOU10:11Houston Hobby
27h 44m
1 stop
SYD06:55Sydney Kingsford Smith
23 Nov
SYD14:05Sydney Kingsford Smith
22h 45m
1 stop
HOU19:50Houston Hobby
$2,170
Find similar
American Airlines
9 Nov
HOU09:05Houston Hobby
28h 50m
1 stop
SYD06:55Sydney Kingsford Smith
23 Nov
SYD14:05Sydney Kingsford Smith
26h 52m
1 stop
HOU23:57Houston Hobby
$2,173
Find similar

momondo Fare Finder

 
Customise 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 78,305 searches. Data last updated 17 September 2025.
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

Mon 9/2

20:05-08:45

1 stop19h 40m

Sydney Kingsford Smith

Sun 22/2

11:45-14:05

1 stop19h 20m

$1,517

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 9/2

15:02-08:45

2 stops24h 43m

Sydney Kingsford Smith

Sun 22/2

11:45-14:05

1 stop19h 20m

$1,523

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 3/11

20:05-08:45

1 stop19h 40m

Sydney Kingsford Smith

Sun 16/11

09:55-14:05

1 stop21h 10m

$1,532

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 9/11

20:05-08:45

1 stop19h 40m

Sydney Kingsford Smith

Sun 23/11

11:45-14:05

1 stop19h 20m

$1,533

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 14/10

06:44-09:00

2 stops34h 16m

Sydney Kingsford Smith

Tue 21/10

14:15-05:20

2 stops31h 05m

$1,581

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 20/10

06:44-12:45

2 stops38h 01m

Sydney Kingsford Smith

Sun 2/11

05:00-23:23

2 stops34h 23m

$1,590

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 16/2

19:49-09:50

2 stops45h 01m

Sydney Kingsford Smith

Mon 23/2

11:35-19:19

2 stops48h 44m

$1,593

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 10/3

20:31-12:30

2 stops23h 59m

Sydney Kingsford Smith

Tue 24/3

14:10-20:02

2 stops21h 52m

$1,848

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 10/11

12:15-06:55

1 stop25h 40m

Sydney Kingsford Smith

Sun 23/11

14:05-23:57

1 stop26h 52m

$2,169

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 10/11

10:11-06:55

1 stop27h 44m

Sydney Kingsford Smith

Sun 23/11

14:05-19:50

1 stop22h 45m

$2,170

Flights are sorted by cheapest return 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 typical price of a round-trip flight between Houston and Sydney?

What is the cheapest month to fly to Sydney?

The month of July is, on average, the cheapest month to fly to Sydney from Houston, with most prices found around $1,324. If you aren’t able to travel to Sydney during the month of July, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $1,345.

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

Our data shows that Wednesday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $1,609. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $2,812.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is in the afternoon. momondo users have found flights departing from Houston to Sydney in the afternoon for as low as $1,550. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $3,614 on average. Flights to Sydney from Houston in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 $1,719 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Houston for as low as $1,316 on momondo.

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

There is only 1 cabin class 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

Every day

Airports in Sydney

1 airport
The fastest flight from Houston to Sydney takes 17h 30m
Direct flights go from Houston to Sydney every day.
There is 1 airport near Sydney: Sydney Kingsford Smith (SYD)
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  • How far is Houston to Sydney Kingsford Smith by plane?

    The distance between Houston and Sydney Kingsford Smith is about 13809.4 km. Typically, this will take 19h 40m by plane in normal conditions.

  • 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 stopovers 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 required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable 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
Qantas AirwaysPriceFrom $692Free cancellationRating
7.5
907 reviews
Search Qantas Airways flights
United AirlinesPriceFrom $2,103Free cancellationRating
7.4
8,926 reviews
Search United Airlines flights

Travelling to a place near Sydney?

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

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Houston to Sydney. momondo saves you time and could save you money on your trip.

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

All flight searches from Houston to Sydney on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Sydney from Houston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Sydney, momondo offers a useful price alert feature which will track prices for flights to Sydney from Houston and alert you when they change.

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