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Cheap flights from Houston George Bush Intcntl Airport to Sydney from $447

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 George Bush Intcntl Airport to Sydney departing on 3/18. 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 George Bush Intcntl Airport to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:33 am - 7:30 am
IAH
-
SYD
30h 57m
1 stop
Multiple Airlines Logo
1:15 pm - 6:02 pm
SYD
-
IAH
43h 47m
2 stops
$965Multiple Airlines
mar., abr. 28 - lun., may. 11
Multiple Airlines Logo
4:04 pm - 12:35 pm
IAH
-
SYD
28h 31m
2 stops
Multiple Airlines Logo
6:00 am - 11:54 pm
SYD
-
IAH
33h 54m
2 stops
$978Multiple Airlines
sáb., mar. 14 - vie., mar. 20
Multiple Airlines Logo
4:34 pm - 12:35 pm
IAH
-
SYD
27h 01m
2 stops
Multiple Airlines Logo
2:00 pm - 12:30 am
SYD
-
IAH
26h 30m
2 stops
$983Multiple Airlines
lun., feb. 23 - lun., mar. 9
Multiple Airlines Logo
9:33 am - 7:30 am
IAH
-
SYD
30h 57m
1 stop
Multiple Airlines Logo
1:15 pm - 12:57 am
SYD
-
IAH
26h 42m
2 stops
$987Multiple Airlines
mar., abr. 28 - mar., may. 12
Multiple Airlines Logo
4:04 pm - 7:30 am
IAH
-
SYD
24h 26m
1 stop
Multiple Airlines Logo
1:15 pm - 12:57 am
SYD
-
IAH
26h 42m
2 stops
$998Multiple Airlines
vie., abr. 10 - sáb., abr. 18
Multiple Airlines Logo
4:34 pm - 7:25 am
IAH
-
SYD
21h 51m
1 stop
Multiple Airlines Logo
2:00 pm - 12:30 am
SYD
-
IAH
26h 30m
2 stops
$1,005Multiple Airlines
jue., mar. 5 - mar., mar. 10
Multiple Airlines Logo
4:34 pm - 7:25 am
IAH
-
SYD
21h 51m
1 stop
Multiple Airlines Logo
2:00 pm - 12:30 am
SYD
-
IAH
27h 30m
2 stops
$1,006Multiple Airlines
mar., feb. 24 - mié., mar. 4
Multiple Airlines Logo
4:49 pm - 7:30 am
IAH
-
SYD
23h 41m
1 stop
Multiple Airlines Logo
1:15 pm - 12:57 am
SYD
-
IAH
26h 42m
2 stops
$1,009Multiple Airlines
jue., abr. 30 - vie., may. 8
Multiple Airlines Logo
9:33 am - 7:30 am
IAH
-
SYD
30h 57m
1 stop
Multiple Airlines Logo
1:15 pm - 6:02 pm
SYD
-
IAH
43h 47m
2 stops
$1,013Multiple Airlines
mar., abr. 28 - dom., may. 10
Multiple Airlines Logo
4:34 pm - 7:25 am
IAH
-
SYD
21h 51m
1 stop
Multiple Airlines Logo
2:00 pm - 12:30 am
SYD
-
IAH
27h 30m
2 stops
$1,017Multiple Airlines
mar., feb. 24 - jue., mar. 5

United Airlines flights from Houston George Bush Intcntl Airport to Sydney

Our best United Airlines deals on Houston George Bush Intcntl Airport to Sydney flight tickets
United Airlines
Feb 8
IAH9:40 amHouston George Bush Intcntl
30h 25m
1 stop
SYD9:05 amSydney Kingsford Smith
Feb 22
SYD11:50 amSydney Kingsford Smith
15h 35m
IAH10:25 amHouston George Bush Intcntl
$1,441
United Airlines
Feb 8
IAH7:50 pmHouston George Bush Intcntl
20h 15m
1 stop
SYD9:05 amSydney Kingsford Smith
Feb 22
SYD11:50 amSydney Kingsford Smith
15h 35m
IAH10:25 amHouston George Bush Intcntl
$1,449
United Airlines
Feb 8
IAH12:40 pmHouston George Bush Intcntl
24h 40m
2 stops
SYD6:20 amSydney Kingsford Smith
Feb 22
SYD11:20 amSydney Kingsford Smith
19h 20m
1 stop
IAH1:40 pmHouston George Bush Intcntl
$1,455

KLM flights from Houston George Bush Intcntl Airport to Sydney

Our best KLM deals on Houston George Bush Intcntl Airport to Sydney flight tickets
KLM
Feb 8
IAH3:30 pmHouston George Bush Intcntl
50h 15m
2 stops
SYD10:45 amSydney Kingsford Smith
Feb 22
SYD12:45 pmSydney Kingsford Smith
41h 45m
3 stops
IAH1:30 pmHouston George Bush Intcntl
$2,630
KLM
Feb 8
IAH3:30 pmHouston George Bush Intcntl
50h 15m
3 stops
SYD10:45 amSydney Kingsford Smith
Feb 22
SYD12:45 pmSydney Kingsford Smith
41h 45m
3 stops
IAH1:30 pmHouston George Bush Intcntl
$2,631

momondo Fare Finder

 
Customize your flight search to find flights from Houston George Bush Intcntl Airport 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 febrero 2, 2026.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

mar. 4/28

9:33 am-7:30 am

1 stop30h 57m

Sydney Kingsford Smith

lun. 5/11

1:15 pm-6:02 pm

2 stops43h 47m

$965

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

sáb. 3/14

4:04 pm-12:35 pm

2 stops28h 31m

Sydney Kingsford Smith

vie. 3/20

6:00 am-11:54 pm

2 stops33h 54m

$978

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

lun. 2/23

4:34 pm-12:35 pm

2 stops27h 01m

Sydney Kingsford Smith

lun. 3/9

2:00 pm-12:30 am

2 stops26h 30m

$983

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

mar. 4/28

9:33 am-7:30 am

1 stop30h 57m

Sydney Kingsford Smith

mar. 5/12

1:15 pm-12:57 am

2 stops26h 42m

$987

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

vie. 4/10

4:04 pm-7:30 am

1 stop24h 26m

Sydney Kingsford Smith

sáb. 4/18

1:15 pm-12:57 am

2 stops26h 42m

$998

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

jue. 3/5

4:34 pm-7:25 am

1 stop21h 51m

Sydney Kingsford Smith

mar. 3/10

2:00 pm-12:30 am

2 stops26h 30m

$1,005

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

mar. 2/24

4:34 pm-7:25 am

1 stop21h 51m

Sydney Kingsford Smith

mié. 3/4

2:00 pm-12:30 am

2 stops27h 30m

$1,006

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

jue. 4/30

4:49 pm-7:30 am

1 stop23h 41m

Sydney Kingsford Smith

vie. 5/8

1:15 pm-12:57 am

2 stops26h 42m

$1,009

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

mar. 4/28

9:33 am-7:30 am

1 stop30h 57m

Sydney Kingsford Smith

dom. 5/10

1:15 pm-6:02 pm

2 stops43h 47m

$1,013

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

mar. 2/24

4:34 pm-7:25 am

1 stop21h 51m

Sydney Kingsford Smith

jue. 3/5

2:00 pm-12:30 am

2 stops27h 30m

$1,017

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 George Bush Intcntl Airport 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, April is the cheapest month to fly from Houston George Bush Intcntl Airport to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $989. If you are unable to visit Sydney during the month of April, then departing from Houston George Bush Intcntl Airport during the month March is also very affordable. Most momondo users find prices during this month for around $1,086.

What is the cheapest Houston George Bush Intcntl to Sydney Kingsford Smith flight route?

Fly from Houston George Bush Intcntl to Sydney Kingsford Smith for the best Houston George Bush Intcntl - 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 George Bush Intcntl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,265 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Houston George Bush Intcntl Airport for as low as $899 on momondo.

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

There are 3 cabin classes available to choose from on Houston George Bush Intcntl 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.

Can stopping save me money on Houston George Bush Intcntl Airport to Sydney flights?

You could potentially save up to 20% on your flight if you consider stops on a Houston George Bush Intcntl Airport to Sydney flight.

How have Houston George Bush Intcntl Airport to Sydney flight prices changed over time?

As of February 2026, prices for Houston George Bush Intcntl Airport to Sydney flights are approximately 17% cheaper when compared to flights at the same time last year.

When to book flights from Houston George Bush Intcntl Airport to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Houston George Bush Intcntl Airport to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Houston George Bush Intcntl Airport to Sydney (IAH to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston George Bush Intcntl Airport to Sydney

Best Price Found

$1,010

Fastest flight time

17h 30m

Direct flights

Every day

Airports in Sydney

1 airport
The best one-way flight to Sydney from Houston George Bush Intcntl Airport in the past 72 hours is $1,010. The best round-trip flight deal from Houston George Bush Intcntl Airport to Sydney found on momondo in the last 72 hours is $1,534.
The fastest flight from Houston George Bush Intcntl Airport to Sydney takes 17h 30m
Direct flights go from Houston George Bush Intcntl Airport to Sydney every day.
There is 1 airport in Sydney. From Houston George Bush Intcntl Airport there are direct flights to Sydney Kingsford Smith (SYD).
Search flight deals

  • How far is Houston George Bush Intcntl to Sydney Kingsford Smith by plane?

    A flight from Houston George Bush Intcntl to Sydney Kingsford Smith will travel around 8588.3 mi. Typically, this will take 17h 30m by plane in normal conditions.

  • When did momondo last update prices for flights from Houston George Bush Intcntl Airport to Sydney Kingsford Smith Airport?

    Prices for flights from Houston George Bush Intcntl Airport to Sydney Kingsford Smith Airport were last updated today.

  • How many operators does momondo search for flights from Houston George Bush Intcntl Airport to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Houston George Bush Intcntl Airport 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 George Bush Intcntl Airport 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 license 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.

  • What is the most popular plane model from Houston George Bush Intcntl Airport to Sydney?

  • What is the most popular airline from Houston George Bush Intcntl Airport to Sydney?

Best airlines flying from Houston George Bush Intcntl Airport to Sydney

Compare and see reviews for airlines that fly from Houston George Bush Intcntl Airport to Sydney with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $337Free CancellationRating
7.9
8,129 reviews
Search Delta flights
Qantas AirwaysPriceFrom $799Free CancellationRating
7.5
983 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $820Free CancellationRating
7.2
11,211 reviews
Search American Airlines flights
United AirlinesPriceFrom $856Free CancellationRating
7.4
9,226 reviews
Search United Airlines flights
Air New ZealandPriceFrom $957Free CancellationRating
8.0
578 reviews
Search Air New Zealand flights
Fiji AirwaysPriceFrom $983Free CancellationRating
8.0
223 reviews
Search Fiji Airways flights
Air CanadaPriceFrom $1,037Free CancellationRating
7.1
10,673 reviews
Search Air Canada flights

  • United Airlines Flights From Houston George Bush Intcntl Airport to Sydney

    Across 7 United Airlines flights from Houston George Bush Intcntl Airport to Sydney this week, the average price was $1,782, with the best United Airlines deals starting from $856 round-trip. 9,226 users have rated United Airlines on momondo, with an average score of 7.4/10.

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Bondi Beach
Parramatta
Katoomba
Wollongong
Randwick
Penrith
Coogee
Manly
Lithgow
Leura
Cronulla
Charlestown
Terrigal
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 helps you find the best flight between Houston and Sydney by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Houston to Sydney flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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