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Cheap flights from Houston George Bush Intcntl Airport to Sydney from $673

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 17/2. 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 George Bush Intcntl Airport to Sydney

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
16:34 - 12:35
IAH
-
SYD
27h 01m
2 stops
Multiple Airlines Logo
14:00 - 00:30
SYD
-
IAH
27h 30m
2 stops
$1,256Multiple Airlines
Sat, 28 Feb - Sat, 7 Mar
Multiple Airlines Logo
16:22 - 12:35
IAH
-
SYD
28h 13m
2 stops
Multiple Airlines Logo
14:00 - 00:11
SYD
-
IAH
26h 11m
2 stops
$1,274Multiple Airlines
Tue, 17 Mar - Tue, 24 Mar
Multiple Airlines Logo
09:33 - 07:30
IAH
-
SYD
30h 57m
1 stop
Multiple Airlines Logo
06:00 - 18:02
SYD
-
IAH
51h 02m
2 stops
$1,315Multiple Airlines
Tue, 28 Apr - Mon, 11 May
Multiple Airlines Logo
16:49 - 07:30
IAH
-
SYD
23h 41m
1 stop
Multiple Airlines Logo
13:20 - 00:57
SYD
-
IAH
26h 37m
2 stops
$1,338Multiple Airlines
Wed, 6 May - Wed, 27 May
Multiple Airlines Logo
16:49 - 07:30
IAH
-
SYD
23h 41m
1 stop
Multiple Airlines Logo
13:15 - 18:02
SYD
-
IAH
43h 47m
2 stops
$1,345Multiple Airlines
Mon, 4 May - Mon, 11 May
Multiple Airlines Logo
09:33 - 07:30
IAH
-
SYD
30h 57m
1 stop
Multiple Airlines Logo
13:15 - 00:57
SYD
-
IAH
26h 42m
2 stops
$1,346Multiple Airlines
Tue, 28 Apr - Fri, 15 May
Multiple Airlines Logo
16:49 - 07:30
IAH
-
SYD
23h 41m
1 stop
Multiple Airlines Logo
13:15 - 18:02
SYD
-
IAH
43h 47m
2 stops
$1,350Multiple Airlines
Mon, 4 May - Mon, 11 May
Multiple Airlines Logo
16:49 - 07:30
IAH
-
SYD
23h 41m
1 stop
Multiple Airlines Logo
13:15 - 00:57
SYD
-
IAH
26h 42m
2 stops
$1,353Multiple Airlines
Wed, 20 May - Sat, 30 May
Multiple Airlines Logo
16:22 - 07:30
IAH
-
SYD
23h 08m
1 stop
Multiple Airlines Logo
13:15 - 00:57
SYD
-
IAH
26h 42m
2 stops
$1,355Multiple Airlines
Wed, 1 Apr - Fri, 1 May
Multiple Airlines Logo
09:33 - 07:30
IAH
-
SYD
30h 57m
1 stop
Multiple Airlines Logo
13:15 - 00:57
SYD
-
IAH
26h 42m
2 stops
$1,359Multiple Airlines
Tue, 5 May - Tue, 19 May

Air Canada flights from Houston George Bush Intcntl Airport to Sydney

Our best Air Canada deals on Houston George Bush Intcntl Airport to Sydney flight tickets
Air Canada
18 Feb
IAH17:25Houston George Bush Intcntl
23h 10m
1 stop
SYD09:35Sydney Kingsford Smith
9 Mar
SYD11:20Sydney Kingsford Smith
21h 04m
1 stop
IAH16:24Houston George Bush Intcntl
$1,792
Air Canada
18 Feb
IAH11:55Houston George Bush Intcntl
28h 40m
2 stops
SYD09:35Sydney Kingsford Smith
9 Mar
SYD11:20Sydney Kingsford Smith
21h 04m
1 stop
IAH16:24Houston George Bush Intcntl
$1,805
Air Canada
18 Feb
IAH11:55Houston George Bush Intcntl
28h 40m
2 stops
SYD09:35Sydney Kingsford Smith
9 Mar
SYD11:20Sydney Kingsford Smith
26h 24m
2 stops
IAH21:44Houston George Bush Intcntl
$1,817

American Airlines flights from Houston George Bush Intcntl Airport to Sydney

Our best American Airlines deals on Houston George Bush Intcntl Airport to Sydney flight tickets
American Airlines
22 Mar
IAH19:42Houston George Bush Intcntl
21h 18m
1 stop
SYD09:00Sydney Kingsford Smith
29 Mar
SYD18:50Sydney Kingsford Smith
21h 06m
2 stops
IAH23:56Houston George Bush Intcntl
$1,393
American Airlines
22 Feb
IAH19:42Houston George Bush Intcntl
20h 18m
1 stop
SYD09:00Sydney Kingsford Smith
14 Mar
SYD11:20Sydney Kingsford Smith
23h 51m
1 stop
IAH19:11Houston George Bush Intcntl
$1,457
American Airlines
22 Feb
IAH19:42Houston George Bush Intcntl
20h 18m
1 stop
SYD09:00Sydney Kingsford Smith
14 Mar
SYD11:20Sydney Kingsford Smith
24h 05m
2 stops
IAH19:25Houston George Bush Intcntl
$1,462

momondo Fare Finder

 
Customise 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 78,305 searches. Data last updated 6 February 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

Sat 28/2

16:34-12:35

2 stops27h 01m

Sydney Kingsford Smith

Sat 7/3

14:00-00:30

2 stops27h 30m

$1,256

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 17/3

16:22-12:35

2 stops28h 13m

Sydney Kingsford Smith

Tue 24/3

14:00-00:11

2 stops26h 11m

$1,274

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 28/4

09:33-07:30

1 stop30h 57m

Sydney Kingsford Smith

Mon 11/5

06:00-18:02

2 stops51h 02m

$1,315

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 6/5

16:49-07:30

1 stop23h 41m

Sydney Kingsford Smith

Wed 27/5

13:20-00:57

2 stops26h 37m

$1,338

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 4/5

16:49-07:30

1 stop23h 41m

Sydney Kingsford Smith

Mon 11/5

13:15-18:02

2 stops43h 47m

$1,345

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 28/4

09:33-07:30

1 stop30h 57m

Sydney Kingsford Smith

Fri 15/5

13:15-00:57

2 stops26h 42m

$1,346

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 4/5

16:49-07:30

1 stop23h 41m

Sydney Kingsford Smith

Mon 11/5

13:15-18:02

2 stops43h 47m

$1,350

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 20/5

16:49-07:30

1 stop23h 41m

Sydney Kingsford Smith

Sat 30/5

13:15-00:57

2 stops26h 42m

$1,353

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 1/4

16:22-07:30

1 stop23h 08m

Sydney Kingsford Smith

Fri 1/5

13:15-00:57

2 stops26h 42m

$1,355

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 5/5

09:33-07:30

1 stop30h 57m

Sydney Kingsford Smith

Tue 19/5

13:15-00:57

2 stops26h 42m

$1,359

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 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 typical price of a round-trip flight between Houston George Bush Intcntl Airport and Sydney?

What is the cheapest month to fly to Sydney?

The month of April is, on average, the cheapest month to fly to Sydney from Houston George Bush Intcntl Airport, with most prices found around $1,419. If you aren’t able to travel to Sydney during the month of April, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $1,559.

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 $1,815 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 George Bush Intcntl Airport for as low as $1,290 on momondo.

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

There is only 1 cabin class 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?

No. A direct flight is the cheapest option for a flight between Houston George Bush Intcntl Airport to Sydney.

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 return 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

Fastest flight time

17h 30m

Direct flights

Every day

Airports in Sydney

1 airport
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?

    There are 13821.4 km between Houston George Bush Intcntl and Sydney Kingsford Smith. Flights usually cover this in 17h 30m, depending on flying conditions and air traffic around both airports.

  • 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 are updated daily.

  • 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 offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify 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 travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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
Coogee
Bondi Beach
Cronulla
Randwick
Charlestown
Newport
Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Houston to Sydney?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Houston to Sydney for you.

Can I find flights from Houston to Sydney with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Sydney from Houston with this policy.

How can momondo help me find flights from Houston to Sydney?

Once you have performed a search for Houston to Sydney flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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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