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Cheap flights from Houston to Sydney from $750

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 23/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Houston to Sydney

Cheap return flights

Logo
07:10 - 11:45IAH-SYD
37h 35m2 stops
Logo
14:15 - 05:14SYD-IAH
30h 59m2 stops
$1,377
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Sun, 21 Sep - Sun, 5 Oct
Logo
07:10 - 11:45IAH-SYD
37h 35m2 stops
Logo
13:15 - 04:30SYD-IAH
30h 15m2 stops
$1,468
Find Deal
Wed, 17 Sep - Wed, 24 Sep
Fiji Airways Logo
18:28 - 12:30IAH-SYD
25h 02m2 stops
Fiji Airways Logo
14:10 - 19:24SYD-IAH
22h 14m2 stops
$1,512Fiji Airways
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Tue, 4 Nov - Tue, 11 Nov
Air New Zealand Logo
20:05 - 08:45IAH-SYD
19h 40m1 stop
Air New Zealand Logo
09:55 - 14:05SYD-IAH
21h 10m1 stop
$1,536Air New Zealand
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Mon, 10 Nov - Sun, 23 Nov
Air New Zealand Logo
16:30 - 08:45IAH-SYD
23h 15m2 stops
Air New Zealand Logo
11:45 - 14:05SYD-IAH
19h 20m1 stop
$1,541Air New Zealand
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Mon, 9 Feb - Sun, 22 Feb
Fiji Airways Logo
18:23 - 12:45IAH-SYD
26h 22m2 stops
Fiji Airways Logo
14:30 - 19:24SYD-IAH
21h 54m2 stops
$1,589Fiji Airways
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Tue, 28 Oct - Sat, 8 Nov
American Airlines Logo
16:41 - 08:05HOU-SYD
23h 24m2 stops
American Airlines Logo
13:20 - 16:09SYD-HOU
18h 49m1 stop
$2,214American Airlines
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Mon, 13 Oct - Wed, 29 Oct
American Airlines Logo
16:41 - 06:55HOU-SYD
22h 14m1 stop
American Airlines Logo
14:20 - 19:50SYD-HOU
22h 30m1 stop
$2,231American Airlines
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Mon, 27 Oct - Sun, 9 Nov
Delta Logo
14:22 - 07:35HOU-SYD
25h 13m2 stops
Delta Logo
10:40 - 10:18SYD-HOU
39h 38m2 stops
$2,262Delta
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Mon, 20 Oct - Sun, 2 Nov
Delta Logo
18:44 - 07:35HOU-SYD
44h 51m2 stops
Delta Logo
10:25 - 17:48SYD-HOU
23h 23m2 stops
$2,295Delta
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Mon, 13 Oct - Tue, 21 Oct

Air New Zealand flights from Houston to Sydney

Our best Air New Zealand deals on Houston to Sydney flight tickets
Air New Zealand
10 Nov
IAH20:05Houston George Bush Intcntl
19h 40m
1 stop
SYD08:45Sydney Kingsford Smith
23 Nov
SYD09:55Sydney Kingsford Smith
21h 10m
1 stop
IAH14:05Houston George Bush Intcntl
$1,536
Find similar
Air New Zealand
9 Feb
IAH16:30Houston George Bush Intcntl
23h 15m
2 stops
SYD08:45Sydney Kingsford Smith
22 Feb
SYD11:45Sydney Kingsford Smith
19h 20m
1 stop
IAH14:05Houston George Bush Intcntl
$1,541
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Air New Zealand
3 Nov
IAH14:20Houston George Bush Intcntl
25h 25m
2 stops
SYD08:45Sydney Kingsford Smith
16 Nov
SYD09:55Sydney Kingsford Smith
21h 10m
1 stop
IAH14:05Houston George Bush Intcntl
$1,543
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American Airlines flights from Houston to Sydney

Our best American Airlines deals on Houston to Sydney flight tickets
American Airlines
13 Oct
HOU16:41Houston Hobby
23h 24m
2 stops
SYD08:05Sydney Kingsford Smith
29 Oct
SYD13:20Sydney Kingsford Smith
18h 49m
1 stop
HOU16:09Houston Hobby
$2,214
Find similar
American Airlines
27 Oct
HOU16:41Houston Hobby
22h 14m
1 stop
SYD06:55Sydney Kingsford Smith
9 Nov
SYD14:20Sydney Kingsford Smith
22h 30m
1 stop
HOU19:50Houston Hobby
$2,231
Find similar
American Airlines
27 Oct
HOU18:11Houston Hobby
22h 49m
2 stops
SYD09:00Sydney Kingsford Smith
9 Nov
SYD11:15Sydney Kingsford Smith
21h 39m
2 stops
HOU15:54Houston Hobby
$2,236
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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 20 August 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

Sun 21/9

07:10-11:45

2 stops37h 35m

Sydney Kingsford Smith

Sun 5/10

14:15-05:14

2 stops30h 59m

$1,377

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 17/9

07:10-11:45

2 stops37h 35m

Sydney Kingsford Smith

Wed 24/9

13:15-04:30

2 stops30h 15m

$1,468

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 4/11

18:28-12:30

2 stops25h 02m

Sydney Kingsford Smith

Tue 11/11

14:10-19:24

2 stops22h 14m

$1,512

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 10/11

20:05-08:45

1 stop19h 40m

Sydney Kingsford Smith

Sun 23/11

09:55-14:05

1 stop21h 10m

$1,536

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 9/2

16:30-08:45

2 stops23h 15m

Sydney Kingsford Smith

Sun 22/2

11:45-14:05

1 stop19h 20m

$1,541

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 28/10

18:23-12:45

2 stops26h 22m

Sydney Kingsford Smith

Sat 8/11

14:30-19:24

2 stops21h 54m

$1,589

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 13/10

16:41-08:05

2 stops23h 24m

Sydney Kingsford Smith

Wed 29/10

13:20-16:09

1 stop18h 49m

$2,214

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 27/10

16:41-06:55

1 stop22h 14m

Sydney Kingsford Smith

Sun 9/11

14:20-19:50

1 stop22h 30m

$2,231

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 20/10

14:22-07:35

2 stops25h 13m

Sydney Kingsford Smith

Sun 2/11

10:40-10:18

2 stops39h 38m

$2,262

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 13/10

18:44-07:35

2 stops44h 51m

Sydney Kingsford Smith

Tue 21/10

10:25-17:48

2 stops23h 23m

$2,295

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 $1,363. 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 $1,393.

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 $1,658. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $2,897.

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 $1,596. 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 $3,723 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 $1,776 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 $1,442 on momondo.

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

There are 1 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

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 23m 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 $713Free cancellationRating
7.5
896 reviews
Search Qantas Airways flights
United AirlinesPriceFrom $2,054Free cancellationRating
7.4
8,928 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
Katoomba
Penrith
Lithgow
Manly
Leura
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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