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Cheap flights from Houston George Bush Intcntl Airport to Sydney from $829

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 29/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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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
12:06 - 22:10
IAH
-
SYD
43h 04m
3 stops
Multiple Airlines Logo
13:15 - 12:46
SYD
-
IAH
38h 31m
3 stops
$1,678Multiple Airlines
Thu, 4 Jun - Thu, 11 Jun
Multiple Airlines Logo
06:10 - 07:30
IAH
-
SYD
34h 20m
1 stop
Multiple Airlines Logo
13:15 - 15:11
SYD
-
IAH
40h 56m
2 stops
$1,697Multiple Airlines
Sat, 8 Aug - Mon, 24 Aug
Multiple Airlines Logo
06:10 - 11:50
IAH
-
SYD
38h 40m
2 stops
Multiple Airlines Logo
13:15 - 12:46
SYD
-
IAH
38h 31m
3 stops
$1,699Multiple Airlines
Sat, 13 Jun - Thu, 18 Jun
Multiple Airlines Logo
16:02 - 11:50
IAH
-
SYD
28h 48m
2 stops
Multiple Airlines Logo
13:15 - 09:57
SYD
-
IAH
35h 42m
3 stops
$1,743Multiple Airlines
Tue, 11 Aug - Fri, 21 Aug
Multiple Airlines Logo
10:52 - 11:50
IAH
-
SYD
33h 58m
3 stops
Multiple Airlines Logo
13:15 - 12:46
SYD
-
IAH
38h 31m
3 stops
$1,744Multiple Airlines
Sat, 13 Jun - Thu, 18 Jun
Multiple Airlines Logo
06:30 - 07:30
IAH
-
SYD
34h 00m
1 stop
Multiple Airlines Logo
13:15 - 15:11
SYD
-
IAH
40h 56m
2 stops
$1,746Multiple Airlines
Sat, 22 Aug - Mon, 31 Aug
Multiple Airlines Logo
06:10 - 07:30
IAH
-
SYD
34h 20m
1 stop
Multiple Airlines Logo
13:15 - 15:11
SYD
-
IAH
40h 56m
2 stops
$1,754Multiple Airlines
Tue, 11 Aug - Thu, 27 Aug
Multiple Airlines Logo
06:10 - 07:30
IAH
-
SYD
34h 20m
1 stop
Multiple Airlines Logo
13:15 - 15:11
SYD
-
IAH
40h 56m
2 stops
$1,757Multiple Airlines
Tue, 11 Aug - Fri, 28 Aug
Multiple Airlines Logo
06:10 - 07:30
IAH
-
SYD
34h 20m
1 stop
Multiple Airlines Logo
13:15 - 15:11
SYD
-
IAH
40h 56m
2 stops
$1,763Multiple Airlines
Sat, 8 Aug - Thu, 20 Aug
Multiple Airlines Logo
06:10 - 07:30
IAH
-
SYD
34h 20m
1 stop
Multiple Airlines Logo
13:15 - 15:11
SYD
-
IAH
40h 56m
2 stops
$1,764Multiple Airlines
Sat, 8 Aug - Thu, 27 Aug

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
26 May
IAH16:45Houston George Bush Intcntl
23h 35m
1 stop
SYD07:20Sydney Kingsford Smith
10 June
SYD09:20Sydney Kingsford Smith
43h 04m
2 stops
IAH13:24Houston George Bush Intcntl
$2,209
Air Canada
26 May
IAH07:20Houston George Bush Intcntl
33h 00m
2 stops
SYD07:20Sydney Kingsford Smith
10 June
SYD09:20Sydney Kingsford Smith
43h 04m
2 stops
IAH13:24Houston George Bush Intcntl
$2,222
Air Canada
1 June
IAH17:20Houston George Bush Intcntl
23h 00m
1 stop
SYD07:20Sydney Kingsford Smith
7 June
SYD09:20Sydney Kingsford Smith
22h 04m
1 stop
IAH16:24Houston George Bush Intcntl
$2,226

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 20 May 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

Cheapest return flight

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 4/6

12:06-22:10

3 stops43h 04m

Sydney Kingsford Smith

Thu 11/6

13:15-12:46

3 stops38h 31m

$1,678

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 8/8

06:10-07:30

1 stop34h 20m

Sydney Kingsford Smith

Mon 24/8

13:15-15:11

2 stops40h 56m

$1,697

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 13/6

06:10-11:50

2 stops38h 40m

Sydney Kingsford Smith

Thu 18/6

13:15-12:46

3 stops38h 31m

$1,699
Fastest return journey

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 11/8

16:02-11:50

2 stops28h 48m

Sydney Kingsford Smith

Fri 21/8

13:15-09:57

3 stops35h 42m

$1,743

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 13/6

10:52-11:50

3 stops33h 58m

Sydney Kingsford Smith

Thu 18/6

13:15-12:46

3 stops38h 31m

$1,744

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 22/8

06:30-07:30

1 stop34h 00m

Sydney Kingsford Smith

Mon 31/8

13:15-15:11

2 stops40h 56m

$1,746

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 11/8

06:10-07:30

1 stop34h 20m

Sydney Kingsford Smith

Thu 27/8

13:15-15:11

2 stops40h 56m

$1,754

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 11/8

06:10-07:30

1 stop34h 20m

Sydney Kingsford Smith

Fri 28/8

13:15-15:11

2 stops40h 56m

$1,757

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 8/8

06:10-07:30

1 stop34h 20m

Sydney Kingsford Smith

Thu 20/8

13:15-15:11

2 stops40h 56m

$1,763

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 8/8

06:10-07:30

1 stop34h 20m

Sydney Kingsford Smith

Thu 27/8

13:15-15:11

2 stops40h 56m

$1,764

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 November is, on average, the cheapest month to fly to Sydney from Houston George Bush Intcntl Airport, with most prices found around $1,449. If you aren’t able to travel to Sydney during the month of November, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $1,732.

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 from Houston George Bush Intcntl Airport 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 $1,990 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 $1,146 on momondo.

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

There is only 1 cabin class available to choose from on Houston George Bush Intcntl Airport to Sydney 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 43% 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 May 2026, prices for Houston George Bush Intcntl Airport to Sydney flights are approximately 31% more expensive 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 35m

Direct flights

Mon, Tue, Thu, Fri and Sat

Airports in Sydney

1 airport
The fastest flight from Houston George Bush Intcntl Airport to Sydney takes 17h 35m
Direct flights go from Houston George Bush Intcntl Airport to Sydney on Monday, Tuesday, Thursday, Friday and Saturday. There are no airlines offering direct flights..
There is 1 airport in Sydney. From Houston George Bush Intcntl Airport there are direct flights to Sydney Kingsford Smith (SYD).
Search flight deals

Frequently asked questions about flying from Houston George Bush Intcntl Airport to Sydney

  • 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 35m, 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
Manly
Coogee
Leura
Bondi Beach
Randwick
Cronulla
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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