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Cheap flights from Houston to Sydney from $891

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 25/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Enter your travel dates to find the best prices.
Air New Zealand Logo
20:05 - 08:45IAH-SYD
19h 40m1 stop
Air New Zealand Logo
11:45 - 14:05SYD-IAH
19h 20m1 stop
$1,560Air New Zealand
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Mon, 9 Feb - Wed, 18 Feb
Air New Zealand Logo
16:28 - 08:45IAH-SYD
23h 17m2 stops
Air New Zealand Logo
09:55 - 14:05SYD-IAH
21h 10m1 stop
$1,566Air New Zealand
Find Deal
Mon, 9 Feb - Wed, 18 Feb
Air New Zealand Logo
20:05 - 10:30IAH-SYD
21h 25m1 stop
Air New Zealand Logo
09:55 - 14:05SYD-IAH
21h 10m1 stop
$1,567Air New Zealand
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Mon, 1 Dec - Sun, 14 Dec
Qantas Airways Logo
16:47 - 09:00IAH-SYD
23h 13m1 stop
Qantas Airways Logo
07:05 - 16:15SYD-IAH
26h 10m2 stops
$1,646Qantas Airways
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Mon, 1 Dec - Mon, 8 Dec
Fiji Airways Logo
18:37 - 12:30IAH-SYD
24h 53m2 stops
Fiji Airways Logo
14:10 - 19:56SYD-IAH
22h 46m2 stops
$1,648Fiji Airways
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Sat, 31 Jan - Thu, 12 Feb
Multiple Airlines Logo
18:39 - 12:45HOU-SYD
26h 06m2 stops
Multiple Airlines Logo
14:30 - 20:20SYD-HOU
22h 50m2 stops
$1,811Multiple Airlines
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Tue, 28 Oct - Sat, 8 Nov
Multiple Airlines Logo
16:24 - 12:30HOU-SYD
27h 06m2 stops
Multiple Airlines Logo
14:10 - 20:03SYD-HOU
22h 53m2 stops
$1,843Multiple Airlines
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Tue, 17 Feb - Sat, 28 Feb
American Airlines Logo
16:55 - 06:55HOU-SYD
21h 00m1 stop
American Airlines Logo
14:05 - 20:03SYD-HOU
22h 58m1 stop
$2,188American Airlines
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Mon, 9 Feb - Mon, 16 Feb
American Airlines Logo
16:25 - 09:00HOU-SYD
23h 35m2 stops
American Airlines Logo
11:20 - 15:54SYD-HOU
21h 34m2 stops
$2,192American Airlines
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Mon, 1 Dec - Sun, 14 Dec
Qantas Airways Logo
16:25 - 14:50HOU-SYD
29h 25m2 stops
Qantas Airways Logo
14:05 - 15:47SYD-HOU
18h 42m1 stop
$2,570Qantas Airways
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Mon, 1 Dec - Thu, 1 Jan

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
18 Feb
SYD11:45Sydney Kingsford Smith
19h 20m
1 stop
IAH14:05Houston George Bush Intcntl
$1,560
Find similar
Air New Zealand
9 Feb
IAH16:28Houston George Bush Intcntl
23h 17m
2 stops
SYD08:45Sydney Kingsford Smith
18 Feb
SYD09:55Sydney Kingsford Smith
21h 10m
1 stop
IAH14:05Houston George Bush Intcntl
$1,566
Find similar
Air New Zealand
1 Dec
IAH20:05Houston George Bush Intcntl
21h 25m
1 stop
SYD10:30Sydney Kingsford Smith
14 Dec
SYD09:55Sydney Kingsford Smith
21h 10m
1 stop
IAH14:05Houston George Bush Intcntl
$1,567
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Delta flights from Houston to Sydney

Our best Delta deals on Houston to Sydney flight tickets
Delta
10 Feb
HOU06:00Houston Hobby
31h 50m
2 stops
SYD06:50Sydney Kingsford Smith
15 Mar
SYD09:40Sydney Kingsford Smith
39h 52m
2 stops
HOU09:32Houston Hobby
$2,219
Find similar
Delta
20 Nov
HOU06:00Houston Hobby
33h 30m
2 stops
SYD08:30Sydney Kingsford Smith
5 Dec
SYD10:40Sydney Kingsford Smith
29h 22m
2 stops
HOU23:02Houston Hobby
$2,369
Find similar
Delta
20 Nov
HOU06:00Houston Hobby
33h 30m
2 stops
SYD08:30Sydney Kingsford Smith
5 Dec
SYD10:40Sydney Kingsford Smith
29h 22m
2 stops
HOU23:02Houston Hobby
$2,371
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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 2 October 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

Wed 18/2

11:45-14:05

1 stop19h 20m

$1,560

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 9/2

16:28-08:45

2 stops23h 17m

Sydney Kingsford Smith

Wed 18/2

09:55-14:05

1 stop21h 10m

$1,566

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 1/12

20:05-10:30

1 stop21h 25m

Sydney Kingsford Smith

Sun 14/12

09:55-14:05

1 stop21h 10m

$1,567

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 1/12

16:47-09:00

1 stop23h 13m

Sydney Kingsford Smith

Mon 8/12

07:05-16:15

2 stops26h 10m

$1,646

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 31/1

18:37-12:30

2 stops24h 53m

Sydney Kingsford Smith

Thu 12/2

14:10-19:56

2 stops22h 46m

$1,648

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 28/10

18:39-12:45

2 stops26h 06m

Sydney Kingsford Smith

Sat 8/11

14:30-20:20

2 stops22h 50m

$1,811

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 17/2

16:24-12:30

2 stops27h 06m

Sydney Kingsford Smith

Sat 28/2

14:10-20:03

2 stops22h 53m

$1,843

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 9/2

16:55-06:55

1 stop21h 00m

Sydney Kingsford Smith

Mon 16/2

14:05-20:03

1 stop22h 58m

$2,188

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 1/12

16:25-09:00

2 stops23h 35m

Sydney Kingsford Smith

Sun 14/12

11:20-15:54

2 stops21h 34m

$2,192

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 1/12

16:25-14:50

2 stops29h 25m

Sydney Kingsford Smith

Thu 1/1

14:05-15:47

1 stop18h 42m

$2,570

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 $1,336. 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 $1,357.

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 $1,624. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $2,838.

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 $1,564. 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 $3,648 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 $1,365 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 $698Free cancellationRating
7.6
910 reviews
Search Qantas Airways flights
United AirlinesPriceFrom $2,123Free cancellationRating
7.4
8,929 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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