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Cheap flights from Houston George Bush Intcntl Airport to Sydney from $714

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 15/9. 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 (IAH-SYD)

Cheap return flights

Logo
07:10 - 11:45IAH-SYD
37h 35m2 stops
Logo
14:15 - 22:26SYD-IAH
24h 11m2 stops
$1,396
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Mon, 29 Sep - Mon, 6 Oct
Air Canada Logo
14:33 - 08:35IAH-SYD
50h 02m2 stops
Air Canada Logo
11:20 - 13:24SYD-IAH
43h 04m2 stops
$1,501Air Canada
Find Deal
Mon, 27 Oct - Sun, 9 Nov
Air Canada Logo
09:35 - 09:35IAH-SYD
31h 00m2 stops
Air Canada Logo
11:20 - 13:44SYD-IAH
43h 24m2 stops
$1,512Air Canada
Find Deal
Tue, 3 Feb - Tue, 10 Feb
Air Canada Logo
11:50 - 08:35IAH-SYD
52h 45m3 stops
Air Canada Logo
11:20 - 13:24SYD-IAH
43h 04m2 stops
$1,523Air Canada
Find Deal
Mon, 27 Oct - Sun, 9 Nov
Air Canada Logo
16:32 - 08:20IAH-SYD
47h 48m2 stops
Air Canada Logo
11:20 - 17:24SYD-IAH
22h 04m1 stop
$1,535Air Canada
Find Deal
Mon, 20 Oct - Sun, 2 Nov
Air Canada Logo
16:32 - 08:20IAH-SYD
47h 48m2 stops
Air Canada Logo
11:20 - 17:24SYD-IAH
22h 04m1 stop
$1,537Air Canada
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Mon, 20 Oct - Sun, 2 Nov
Air New Zealand Logo
14:25 - 08:45IAH-SYD
26h 20m2 stops
Air New Zealand Logo
09:55 - 15:05SYD-IAH
21h 10m1 stop
$1,563Air New Zealand
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Mon, 13 Oct - Sun, 26 Oct
Air New Zealand Logo
14:25 - 08:45IAH-SYD
26h 20m2 stops
Air New Zealand Logo
11:45 - 15:05SYD-IAH
19h 20m1 stop
$1,564Air New Zealand
Find Deal
Mon, 13 Oct - Sun, 26 Oct
Air New Zealand Logo
21:55 - 08:45IAH-SYD
19h 50m1 stop
Air New Zealand Logo
09:55 - 15:15SYD-IAH
21h 20m1 stop
$1,566Air New Zealand
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Tue, 16 Sep - Tue, 14 Oct
Logo
07:10 - 11:45IAH-SYD
37h 35m2 stops
Logo
13:15 - 04:30SYD-IAH
30h 15m2 stops
$1,613
Find Deal
Fri, 12 Sep - Sun, 21 Sep

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
27 Oct
IAH14:33Houston George Bush Intcntl
50h 02m
2 stops
SYD08:35Sydney Kingsford Smith
9 Nov
SYD11:20Sydney Kingsford Smith
43h 04m
2 stops
IAH13:24Houston George Bush Intcntl
$1,501
Find similar
Air Canada
3 Feb
IAH09:35Houston George Bush Intcntl
31h 00m
2 stops
SYD09:35Sydney Kingsford Smith
10 Feb
SYD11:20Sydney Kingsford Smith
43h 24m
2 stops
IAH13:44Houston George Bush Intcntl
$1,512
Find similar
Air Canada
27 Oct
IAH11:50Houston George Bush Intcntl
52h 45m
3 stops
SYD08:35Sydney Kingsford Smith
9 Nov
SYD11:20Sydney Kingsford Smith
43h 04m
2 stops
IAH13:24Houston George Bush Intcntl
$1,523
Find similar

Air New Zealand flights from Houston George Bush Intcntl Airport to Sydney

Our best Air New Zealand deals on Houston George Bush Intcntl Airport to Sydney flight tickets
Air New Zealand
13 Oct
IAH14:25Houston George Bush Intcntl
26h 20m
2 stops
SYD08:45Sydney Kingsford Smith
26 Oct
SYD09:55Sydney Kingsford Smith
21h 10m
1 stop
IAH15:05Houston George Bush Intcntl
$1,563
Find similar
Air New Zealand
13 Oct
IAH14:25Houston George Bush Intcntl
26h 20m
2 stops
SYD08:45Sydney Kingsford Smith
26 Oct
SYD11:45Sydney Kingsford Smith
19h 20m
1 stop
IAH15:05Houston George Bush Intcntl
$1,564
Find similar
Air New Zealand
16 Sept
IAH21:55Houston George Bush Intcntl
19h 50m
1 stop
SYD08:45Sydney Kingsford Smith
14 Oct
SYD09:55Sydney Kingsford Smith
21h 20m
1 stop
IAH15:15Houston George Bush Intcntl
$1,566
Find similar

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 10 August 2025.
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

Mon 29/9

07:10-11:45

2 stops37h 35m

Sydney Kingsford Smith

Mon 6/10

14:15-22:26

2 stops24h 11m

$1,396

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 27/10

14:33-08:35

2 stops50h 02m

Sydney Kingsford Smith

Sun 9/11

11:20-13:24

2 stops43h 04m

$1,501

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 3/2

09:35-09:35

2 stops31h 00m

Sydney Kingsford Smith

Tue 10/2

11:20-13:44

2 stops43h 24m

$1,512

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 27/10

11:50-08:35

3 stops52h 45m

Sydney Kingsford Smith

Sun 9/11

11:20-13:24

2 stops43h 04m

$1,523

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 20/10

16:32-08:20

2 stops47h 48m

Sydney Kingsford Smith

Sun 2/11

11:20-17:24

1 stop22h 04m

$1,535

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 20/10

16:32-08:20

2 stops47h 48m

Sydney Kingsford Smith

Sun 2/11

11:20-17:24

1 stop22h 04m

$1,537

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 13/10

14:25-08:45

2 stops26h 20m

Sydney Kingsford Smith

Sun 26/10

09:55-15:05

1 stop21h 10m

$1,563

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 13/10

14:25-08:45

2 stops26h 20m

Sydney Kingsford Smith

Sun 26/10

11:45-15:05

1 stop19h 20m

$1,564

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 16/9

21:55-08:45

1 stop19h 50m

Sydney Kingsford Smith

Tue 14/10

09:55-15:15

1 stop21h 20m

$1,566

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Fri 12/9

07:10-11:45

2 stops37h 35m

Sydney Kingsford Smith

Sun 21/9

13:15-04:30

2 stops30h 15m

$1,613

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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?

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 $1,428. If you aren’t able to travel to Sydney during the month of April, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $1,475.

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

Our data shows that Wednesday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $1,645. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $2,874.

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 in the afternoon. momondo users have found flights departing from Houston George Bush Intcntl Airport to Sydney in the afternoon for as low as $1,584. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $3,694 on average. Flights to Sydney from Houston George Bush Intcntl Airport in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 $1,856 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 $1,474 on momondo.

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

There are 1 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 30% 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 August 2025, prices for Houston George Bush Intcntl Airport to Sydney flights are approximately 40% 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

Best price found

$714

Fastest flight time

17h 35m

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 $714. The best return flight deal from Houston George Bush Intcntl Airport to Sydney found on momondo in the last 72 hours is $1,396.
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 every day.
There is 1 airport near Sydney: 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 19h 40m, 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
Katoomba
Lithgow
Penrith
Leura
Manly
Bondi Beach
Coogee
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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