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Cheap flights from Houston to Sydney from $512

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 10/25. 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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Find the cheapest flights from Houston to Sydney

Cheap round-trip flights

Logo
7:10 am - 11:45 amIAH-SYD
37h 35m2 stops
Logo
2:15 pm - 5:14 amSYD-IAH
30h 59m2 stops
$892
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Sun, Sep 21 - Sun, Oct 5
Logo
7:10 am - 11:45 amIAH-SYD
37h 35m2 stops
Logo
6:00 am - 10:26 pmSYD-IAH
31h 26m2 stops
$939
Find Deal
Sun, Sep 21 - Tue, Sep 30
Fiji Airways Logo
6:23 pm - 12:45 pmIAH-SYD
26h 22m2 stops
Fiji Airways Logo
2:10 pm - 7:24 pmSYD-IAH
22h 14m2 stops
$972Fiji Airways
Find Deal
Tue, Oct 28 - Tue, Nov 11
Fiji Airways Logo
6:28 pm - 12:30 pmIAH-SYD
25h 02m2 stops
Fiji Airways Logo
2:10 pm - 7:24 pmSYD-IAH
22h 14m2 stops
$979Fiji Airways
Find Deal
Tue, Nov 4 - Tue, Nov 11
Air New Zealand Logo
8:05 pm - 8:45 amIAH-SYD
19h 40m1 stop
Air New Zealand Logo
11:45 am - 2:05 pmSYD-IAH
19h 20m1 stop
$994Air New Zealand
Find Deal
Mon, Nov 10 - Sun, Nov 23
Air New Zealand Logo
8:05 pm - 10:30 amIAH-SYD
21h 25m1 stop
Air New Zealand Logo
11:45 am - 2:05 pmSYD-IAH
19h 20m1 stop
$995Air New Zealand
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Mon, Feb 9 - Sun, Feb 22
American Airlines Logo
4:41 pm - 8:05 amHOU-SYD
23h 24m2 stops
American Airlines Logo
1:20 pm - 4:09 pmSYD-HOU
18h 49m1 stop
$1,434American Airlines
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Mon, Oct 13 - Wed, Oct 29
American Airlines Logo
2:26 pm - 6:55 amHOU-SYD
24h 29m1 stop
American Airlines Logo
2:20 pm - 3:54 pmSYD-HOU
18h 34m1 stop
$1,445American Airlines
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Mon, Oct 27 - Sun, Nov 9
Delta Logo
2:22 pm - 7:35 amHOU-SYD
25h 13m2 stops
Delta Logo
10:40 am - 10:18 amSYD-HOU
39h 38m2 stops
$1,465Delta
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Mon, Oct 20 - Sun, Nov 2
Delta Logo
6:44 pm - 7:35 amHOU-SYD
44h 51m2 stops
Delta Logo
10:25 am - 5:48 pmSYD-HOU
23h 23m2 stops
$1,486Delta
Find Deal
Mon, Oct 13 - Tue, Oct 21

Fiji Airways flights from Houston to Sydney

Our best Fiji Airways deals on Houston to Sydney flight tickets
Fiji Airways
Oct 28
IAH6:23 pmHouston George Bush Intcntl
26h 22m
2 stops
SYD12:45 pmSydney Kingsford Smith
Nov 11
SYD2:10 pmSydney Kingsford Smith
22h 14m
2 stops
IAH7:24 pmHouston George Bush Intcntl
$972
Find similar
Fiji Airways
Nov 4
IAH6:28 pmHouston George Bush Intcntl
25h 02m
2 stops
SYD12:30 pmSydney Kingsford Smith
Nov 11
SYD2:10 pmSydney Kingsford Smith
22h 14m
2 stops
IAH7:24 pmHouston George Bush Intcntl
$979
Find similar
Fiji Airways
Oct 28
IAH6:23 pmHouston George Bush Intcntl
26h 22m
2 stops
SYD12:45 pmSydney Kingsford Smith
Nov 8
SYD2:30 pmSydney Kingsford Smith
21h 54m
2 stops
IAH7:24 pmHouston George Bush Intcntl
$1,028
Find similar

Air New Zealand flights from Houston to Sydney

Our best Air New Zealand deals on Houston to Sydney flight tickets
Air New Zealand
Nov 10
IAH8:05 pmHouston George Bush Intcntl
19h 40m
1 stop
SYD8:45 amSydney Kingsford Smith
Nov 23
SYD11:45 amSydney Kingsford Smith
19h 20m
1 stop
IAH2:05 pmHouston George Bush Intcntl
$994
Find similar
Air New Zealand
Feb 9
IAH8:05 pmHouston George Bush Intcntl
21h 25m
1 stop
SYD10:30 amSydney Kingsford Smith
Feb 22
SYD11:45 amSydney Kingsford Smith
19h 20m
1 stop
IAH2:05 pmHouston George Bush Intcntl
$995
Find similar
Air New Zealand
Feb 9
IAH4:30 pmHouston George Bush Intcntl
23h 15m
2 stops
SYD8:45 amSydney Kingsford Smith
Feb 22
SYD11:45 amSydney Kingsford Smith
19h 20m
1 stop
IAH2:05 pmHouston George Bush Intcntl
$998
Find similar

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 August 21, 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 9/21

7:10 am-11:45 am

2 stops37h 35m

Sydney Kingsford Smith

Sun 10/5

2:15 pm-5:14 am

2 stops30h 59m

$892

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 9/21

7:10 am-11:45 am

2 stops37h 35m

Sydney Kingsford Smith

Tue 9/30

6:00 am-10:26 pm

2 stops31h 26m

$939

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 10/28

6:23 pm-12:45 pm

2 stops26h 22m

Sydney Kingsford Smith

Tue 11/11

2:10 pm-7:24 pm

2 stops22h 14m

$972

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 11/4

6:28 pm-12:30 pm

2 stops25h 02m

Sydney Kingsford Smith

Tue 11/11

2:10 pm-7:24 pm

2 stops22h 14m

$979

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 11/10

8:05 pm-8:45 am

1 stop19h 40m

Sydney Kingsford Smith

Sun 11/23

11:45 am-2:05 pm

1 stop19h 20m

$994

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 2/9

8:05 pm-10:30 am

1 stop21h 25m

Sydney Kingsford Smith

Sun 2/22

11:45 am-2:05 pm

1 stop19h 20m

$995

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 10/13

4:41 pm-8:05 am

2 stops23h 24m

Sydney Kingsford Smith

Wed 10/29

1:20 pm-4:09 pm

1 stop18h 49m

$1,434

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 10/27

2:26 pm-6:55 am

1 stop24h 29m

Sydney Kingsford Smith

Sun 11/9

2:20 pm-3:54 pm

1 stop18h 34m

$1,445

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 10/20

2:22 pm-7:35 am

2 stops25h 13m

Sydney Kingsford Smith

Sun 11/2

10:40 am-10:18 am

2 stops39h 38m

$1,465

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 10/13

6:44 pm-7:35 am

2 stops44h 51m

Sydney Kingsford Smith

Tue 10/21

10:25 am-5:48 pm

2 stops23h 23m

$1,486

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 typical price of a round-trip flight between Houston and Sydney?

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 $883. 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 $902.

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

The cheapest day to depart from Houston to Sydney is on a Tuesday when prices can be found for as low as $1,171. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $1,370.

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 at noon. momondo users have found flights departing from Houston to Sydney at noon for as low as $868. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the evening, with an average ticket price of $1,739. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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 $1,150 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 $934 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

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?

    A flight from Houston to Sydney Kingsford Smith will travel around 8580.8 mi. By plane, this route typically takes 19h 23m.

  • 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
Qantas AirwaysPriceFrom $799Free CancellationRating
7.5
898 reviews
Search Qantas Airways flights
Air CanadaPriceFrom $820Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
American AirlinesPriceFrom $823Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $830Free CancellationRating
7.9
7,981 reviews
Search Delta flights
Fiji AirwaysPriceFrom $859Free CancellationRating
8.0
204 reviews
Search Fiji Airways flights
Air New ZealandPriceFrom $957Free CancellationRating
8.0
504 reviews
Search Air New Zealand flights
United AirlinesPriceFrom $1,303Free CancellationRating
7.4
8,930 reviews
Search United Airlines 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
Coogee
Cronulla
Lithgow
Penrith
Manly
Leura
Charlestown
Swansea
Terrigal

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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