Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Houston George Bush Intcntl Airport to Sydney from $590

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 7/29. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
12:06 pm - 10:10 pm
IAH
-
SYD
43h 04m
3 stops
Multiple Airlines Logo
1:15 pm - 12:46 pm
SYD
-
IAH
38h 31m
3 stops
$1,195Multiple Airlines
Thu, Jun 4 - Thu, Jun 11
Multiple Airlines Logo
6:10 am - 7:30 am
IAH
-
SYD
34h 20m
1 stop
Multiple Airlines Logo
1:15 pm - 3:11 pm
SYD
-
IAH
40h 56m
2 stops
$1,208Multiple Airlines
Sat, Aug 8 - Mon, Aug 24
Multiple Airlines Logo
6:10 am - 11:50 am
IAH
-
SYD
38h 40m
2 stops
Multiple Airlines Logo
1:15 pm - 12:46 pm
SYD
-
IAH
38h 31m
3 stops
$1,210Multiple Airlines
Sat, Jun 13 - Thu, Jun 18
Multiple Airlines Logo
4:02 pm - 11:50 am
IAH
-
SYD
28h 48m
2 stops
Multiple Airlines Logo
1:15 pm - 9:57 am
SYD
-
IAH
35h 42m
3 stops
$1,241Multiple Airlines
Tue, Aug 11 - Fri, Aug 21
Multiple Airlines Logo
10:52 am - 11:50 am
IAH
-
SYD
33h 58m
3 stops
Multiple Airlines Logo
1:15 pm - 12:46 pm
SYD
-
IAH
38h 31m
3 stops
$1,242Multiple Airlines
Sat, Jun 13 - Thu, Jun 18
Multiple Airlines Logo
6:30 am - 7:30 am
IAH
-
SYD
34h 00m
1 stop
Multiple Airlines Logo
1:15 pm - 3:11 pm
SYD
-
IAH
40h 56m
2 stops
$1,243Multiple Airlines
Sat, Aug 22 - Mon, Aug 31
Multiple Airlines Logo
6:10 am - 7:30 am
IAH
-
SYD
34h 20m
1 stop
Multiple Airlines Logo
1:15 pm - 3:11 pm
SYD
-
IAH
40h 56m
2 stops
$1,249Multiple Airlines
Tue, Aug 11 - Thu, Aug 27
Multiple Airlines Logo
6:10 am - 7:30 am
IAH
-
SYD
34h 20m
1 stop
Multiple Airlines Logo
1:15 pm - 3:11 pm
SYD
-
IAH
40h 56m
2 stops
$1,251Multiple Airlines
Tue, Aug 11 - Tue, Sep 1
Multiple Airlines Logo
6:10 am - 7:30 am
IAH
-
SYD
34h 20m
1 stop
Multiple Airlines Logo
1:15 pm - 3:11 pm
SYD
-
IAH
40h 56m
2 stops
$1,255Multiple Airlines
Sat, Aug 8 - Thu, Aug 20
Multiple Airlines Logo
6:10 am - 7:30 am
IAH
-
SYD
34h 20m
1 stop
Multiple Airlines Logo
1:15 pm - 3:11 pm
SYD
-
IAH
40h 56m
2 stops
$1,256Multiple Airlines
Sat, Aug 8 - Thu, Aug 27

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
May 26
IAH4:45 pmHouston George Bush Intcntl
23h 35m
1 stop
SYD7:20 amSydney Kingsford Smith
Jun 10
SYD9:20 amSydney Kingsford Smith
43h 04m
2 stops
IAH1:24 pmHouston George Bush Intcntl
$1,573
Air Canada
May 26
IAH7:20 amHouston George Bush Intcntl
33h 00m
2 stops
SYD7:20 amSydney Kingsford Smith
Jun 10
SYD9:20 amSydney Kingsford Smith
43h 04m
2 stops
IAH1:24 pmHouston George Bush Intcntl
$1,582
Air Canada
Jun 1
IAH5:20 pmHouston George Bush Intcntl
23h 00m
1 stop
SYD7:20 amSydney Kingsford Smith
Jun 7
SYD9:20 amSydney Kingsford Smith
22h 04m
1 stop
IAH4:24 pmHouston George Bush Intcntl
$1,585

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 May 21, 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 round-trip

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Thu 6/4

12:06 pm-10:10 pm

3 stops43h 04m

Sydney Kingsford Smith

Thu 6/11

1:15 pm-12:46 pm

3 stops38h 31m

$1,195

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 8/8

6:10 am-7:30 am

1 stop34h 20m

Sydney Kingsford Smith

Mon 8/24

1:15 pm-3:11 pm

2 stops40h 56m

$1,208

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 6/13

6:10 am-11:50 am

2 stops38h 40m

Sydney Kingsford Smith

Thu 6/18

1:15 pm-12:46 pm

3 stops38h 31m

$1,210
Quickest round-trip

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 8/11

4:02 pm-11:50 am

2 stops28h 48m

Sydney Kingsford Smith

Fri 8/21

1:15 pm-9:57 am

3 stops35h 42m

$1,241

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 6/13

10:52 am-11:50 am

3 stops33h 58m

Sydney Kingsford Smith

Thu 6/18

1:15 pm-12:46 pm

3 stops38h 31m

$1,242

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 8/22

6:30 am-7:30 am

1 stop34h 00m

Sydney Kingsford Smith

Mon 8/31

1:15 pm-3:11 pm

2 stops40h 56m

$1,243

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 8/11

6:10 am-7:30 am

1 stop34h 20m

Sydney Kingsford Smith

Thu 8/27

1:15 pm-3:11 pm

2 stops40h 56m

$1,249

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 8/11

6:10 am-7:30 am

1 stop34h 20m

Sydney Kingsford Smith

Tue 9/1

1:15 pm-3:11 pm

2 stops40h 56m

$1,251

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 8/8

6:10 am-7:30 am

1 stop34h 20m

Sydney Kingsford Smith

Thu 8/20

1:15 pm-3:11 pm

2 stops40h 56m

$1,255

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 8/8

6:10 am-7:30 am

1 stop34h 20m

Sydney Kingsford Smith

Thu 8/27

1:15 pm-3:11 pm

2 stops40h 56m

$1,256

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

In general, November 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 $1,032. If you are unable to visit Sydney during the month of November, then departing from Houston George Bush Intcntl Airport during the month October is also very affordable. Most momondo users find prices during this month for around $1,233.

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 $1,417 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 $816 on momondo.

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

There are 3 cabin classes 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 44% 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 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

Fastest flight time

17h 35m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

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, Saturday and Sunday. 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?

    A flight from Houston George Bush Intcntl to Sydney Kingsford Smith will travel around 8588.3 mi. Typically, this will take 17h 35m 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 $203Free CancellationRating
7.9
8,452 reviews
Search Delta flights
Fiji AirwaysPriceFrom $702Free CancellationRating
8.1
241 reviews
Search Fiji Airways flights
Qantas AirwaysPriceFrom $794Free CancellationRating
7.5
1,038 reviews
Search Qantas Airways flights
Air CanadaPriceFrom $822Free CancellationRating
7.1
11,067 reviews
Search Air Canada flights
American AirlinesPriceFrom $844Free CancellationRating
7.1
11,641 reviews
Search American Airlines flights
United AirlinesPriceFrom $856Free CancellationRating
7.4
9,748 reviews
Search United Airlines flights
Air New ZealandPriceFrom $1,014Free CancellationRating
8.0
647 reviews
Search Air New Zealand 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
Penrith
Leura
Randwick
Lithgow
Coogee
Manly
Cronulla
Terrigal
Charlestown
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.

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 6/20
Sat 6/27
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia