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Cheap flights from Houston to Sydney from $421

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 2/14. 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

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Multiple Airlines Logo
9:51 am - 7:25 amIAH-SYD
28h 34m1 stop
Multiple Airlines Logo
2:00 pm - 12:57 amSYD-IAH
27h 57m2 stops
$1,011Multiple Airlines
Find Deal
Thu, Feb 12 - Sat, Feb 21
Multiple Airlines Logo
4:14 pm - 7:25 amIAH-SYD
22h 11m1 stop
Multiple Airlines Logo
2:00 pm - 12:57 amSYD-IAH
27h 57m2 stops
$1,019Multiple Airlines
Find Deal
Wed, Feb 11 - Tue, Feb 24
Multiple Airlines Logo
9:51 am - 7:25 amIAH-SYD
28h 34m1 stop
Multiple Airlines Logo
2:00 pm - 12:57 amSYD-IAH
27h 57m2 stops
$1,024Multiple Airlines
Find Deal
Thu, Feb 12 - Wed, Feb 25
Multiple Airlines Logo
9:55 am - 7:25 amIAH-SYD
28h 30m1 stop
Multiple Airlines Logo
2:00 pm - 12:57 amSYD-IAH
27h 57m2 stops
$1,025Multiple Airlines
Find Deal
Fri, Feb 6 - Wed, Feb 18
Multiple Airlines Logo
4:14 pm - 7:25 amIAH-SYD
22h 11m1 stop
Multiple Airlines Logo
2:00 pm - 12:57 amSYD-IAH
27h 57m2 stops
$1,032Multiple Airlines
Find Deal
Wed, Feb 11 - Wed, Feb 18
Multiple Airlines Logo
9:51 am - 7:25 amIAH-SYD
28h 34m1 stop
Multiple Airlines Logo
2:00 pm - 12:57 amSYD-IAH
27h 57m2 stops
$1,049Multiple Airlines
Find Deal
Thu, Feb 12 - Sun, Feb 22
Multiple Airlines Logo
9:55 am - 7:25 amIAH-SYD
28h 30m1 stop
Multiple Airlines Logo
5:45 pm - 12:57 amSYD-IAH
24h 12m1 stop
$1,050Multiple Airlines
Find Deal
Sat, Feb 7 - Wed, Feb 18
Multiple Airlines Logo
8:59 pm - 7:25 amIAH-SYD
41h 26m1 stop
Multiple Airlines Logo
2:00 pm - 7:23 pmSYD-IAH
22h 23m2 stops
$1,051Multiple Airlines
Find Deal
Tue, Dec 30 - Sat, Feb 7
American Airlines Logo
10:16 am - 6:55 amHOU-SYD
27h 39m1 stop
American Airlines Logo
1:05 pm - 11:43 pmSYD-HOU
26h 38m1 stop
$1,445American Airlines
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Tue, Feb 24 - Wed, Mar 11
American Airlines Logo
6:29 pm - 6:55 amHOU-SYD
20h 26m1 stop
American Airlines Logo
1:05 pm - 6:01 pmSYD-HOU
20h 56m1 stop
$1,446American Airlines
Find Deal
Tue, Mar 10 - Tue, Mar 24

American Airlines flights from Houston to Sydney

Our best American Airlines deals on Houston to Sydney flight tickets
American Airlines
Feb 24
HOU10:16 amHouston Hobby
27h 39m
1 stop
SYD6:55 amSydney Kingsford Smith
Mar 11
SYD1:05 pmSydney Kingsford Smith
26h 38m
1 stop
HOU11:43 pmHouston Hobby
$1,445
Find similar
American Airlines
Mar 10
HOU6:29 pmHouston Hobby
20h 26m
1 stop
SYD6:55 amSydney Kingsford Smith
Mar 24
SYD1:05 pmSydney Kingsford Smith
20h 56m
1 stop
HOU6:01 pmHouston Hobby
$1,446
Find similar
American Airlines
Feb 24
HOU4:22 pmHouston Hobby
23h 38m
2 stops
SYD9:00 amSydney Kingsford Smith
Mar 11
SYD11:20 amSydney Kingsford Smith
22h 41m
2 stops
HOU6:01 pmHouston Hobby
$1,448
Find similar

Qantas Airways flights from Houston to Sydney

Our best Qantas Airways deals on Houston to Sydney flight tickets
Qantas Airways
Feb 8
HOU4:55 pmHouston Hobby
21h 00m
1 stop
SYD6:55 amSydney Kingsford Smith
Feb 16
SYD5:50 pmSydney Kingsford Smith
34h 56m
2 stops
HOU11:46 amHouston Hobby
$1,839
Find similar
Qantas Airways
May 4
HOU8:27 pmHouston Hobby
19h 28m
1 stop
SYD6:55 amSydney Kingsford Smith
May 13
SYD12:00 pmSydney Kingsford Smith
20h 59m
1 stop
HOU5:59 pmHouston Hobby
$1,857
Find similar
Qantas Airways
May 4
HOU8:27 pmHouston Hobby
19h 28m
1 stop
SYD6:55 amSydney Kingsford Smith
May 13
SYD12:00 pmSydney Kingsford Smith
20h 59m
1 stop
HOU5:59 pmHouston Hobby
$1,858
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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 November 20, 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

Thu 2/12

9:51 am-7:25 am

1 stop28h 34m

Sydney Kingsford Smith

Sat 2/21

2:00 pm-12:57 am

2 stops27h 57m

$1,011

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 2/11

4:14 pm-7:25 am

1 stop22h 11m

Sydney Kingsford Smith

Tue 2/24

2:00 pm-12:57 am

2 stops27h 57m

$1,019

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 2/12

9:51 am-7:25 am

1 stop28h 34m

Sydney Kingsford Smith

Wed 2/25

2:00 pm-12:57 am

2 stops27h 57m

$1,024

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Fri 2/6

9:55 am-7:25 am

1 stop28h 30m

Sydney Kingsford Smith

Wed 2/18

2:00 pm-12:57 am

2 stops27h 57m

$1,025

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 2/11

4:14 pm-7:25 am

1 stop22h 11m

Sydney Kingsford Smith

Wed 2/18

2:00 pm-12:57 am

2 stops27h 57m

$1,032

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 2/12

9:51 am-7:25 am

1 stop28h 34m

Sydney Kingsford Smith

Sun 2/22

2:00 pm-12:57 am

2 stops27h 57m

$1,049

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 2/7

9:55 am-7:25 am

1 stop28h 30m

Sydney Kingsford Smith

Wed 2/18

5:45 pm-12:57 am

1 stop24h 12m

$1,050

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 12/30

8:59 pm-7:25 am

1 stop41h 26m

Sydney Kingsford Smith

Sat 2/7

2:00 pm-7:23 pm

2 stops22h 23m

$1,051

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 2/24

10:16 am-6:55 am

1 stop27h 39m

Sydney Kingsford Smith

Wed 3/11

1:05 pm-11:43 pm

1 stop26h 38m

$1,445

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Tue 3/10

6:29 pm-6:55 am

1 stop20h 26m

Sydney Kingsford Smith

Tue 3/24

1:05 pm-6:01 pm

1 stop20h 56m

$1,446

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 April is also very affordable. Most momondo users find prices during this month for around $874.

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 $1,655. 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 $1,075 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 $865 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 35m

Direct flights

Every day

Airports in Sydney

1 airport
The fastest flight from Houston to Sydney takes 17h 35m
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 28m.

  • 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
8,002 reviews
Search Delta flights
Qantas AirwaysPriceFrom $799Free CancellationRating
7.5
942 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $822Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights
United AirlinesPriceFrom $839Free CancellationRating
7.4
9,028 reviews
Search United Airlines flights
Air New ZealandPriceFrom $957Free CancellationRating
8.0
533 reviews
Search Air New Zealand flights
Fiji AirwaysPriceFrom $971Free CancellationRating
8.1
209 reviews
Search Fiji Airways flights
Air CanadaPriceFrom $998Free CancellationRating
7.1
10,462 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
Coogee
Cronulla
Manly
Penrith
Leura
Lithgow
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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