Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Houston George Bush Intcntl Airport to Sydney from $402

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 5/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 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
4:21 pm - 10:10 pm
IAH
-
SYD
38h 49m
2 stops
Multiple Airlines Logo
1:20 pm - 1:25 am
SYD
-
IAH
27h 05m
2 stops
$920Multiple Airlines
Tue, May 5 - Wed, May 27
Air Canada Logo
4:32 pm - 7:20 am
IAH
-
SYD
47h 48m
2 stops
Air Canada Logo
9:20 am - 1:34 pm
SYD
-
IAH
43h 14m
2 stops
$1,056Air Canada
Tue, Apr 28 - Tue, May 12
Air Canada Logo
5:25 pm - 7:20 am
IAH
-
SYD
22h 55m
1 stop
Air Canada Logo
9:20 am - 3:44 pm
SYD
-
IAH
21h 24m
1 stop
$1,060Air Canada
Sun, Apr 19 - Mon, May 4
Air Canada Logo
5:25 pm - 7:20 am
IAH
-
SYD
22h 55m
1 stop
Air Canada Logo
9:20 am - 1:34 pm
SYD
-
IAH
43h 14m
2 stops
$1,063Air Canada
Tue, Apr 28 - Tue, May 12
Air Canada Logo
5:25 pm - 7:20 am
IAH
-
SYD
22h 55m
1 stop
Air Canada Logo
9:20 am - 3:44 pm
SYD
-
IAH
21h 24m
1 stop
$1,064Air Canada
Sun, Apr 19 - Mon, May 4
Air Canada Logo
5:25 pm - 7:20 am
IAH
-
SYD
22h 55m
1 stop
Air Canada Logo
9:20 am - 3:44 pm
SYD
-
IAH
21h 24m
1 stop
$1,065Air Canada
Mon, Apr 20 - Mon, May 4
Air Canada Logo
11:50 am - 7:20 am
IAH
-
SYD
28h 30m
2 stops
Air Canada Logo
9:20 am - 3:44 pm
SYD
-
IAH
21h 24m
1 stop
$1,073Air Canada
Mon, Apr 20 - Mon, May 4
Air Canada Logo
5:25 pm - 7:20 am
IAH
-
SYD
22h 55m
1 stop
Air Canada Logo
9:20 am - 3:44 pm
SYD
-
IAH
21h 24m
1 stop
$1,076Air Canada
Sun, Apr 19 - Mon, May 4
Air Canada Logo
11:50 am - 7:20 am
IAH
-
SYD
52h 30m
2 stops
Air Canada Logo
9:20 am - 3:44 pm
SYD
-
IAH
21h 24m
1 stop
$1,079Air Canada
Sun, Apr 19 - Mon, May 4
Air Canada Logo
5:25 pm - 7:20 am
IAH
-
SYD
22h 55m
1 stop
Air Canada Logo
9:20 am - 3:44 pm
SYD
-
IAH
21h 24m
1 stop
$1,083Air Canada
Sun, Apr 19 - Mon, May 4

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
Apr 28
IAH4:32 pmHouston George Bush Intcntl
47h 48m
2 stops
SYD7:20 amSydney Kingsford Smith
May 12
SYD9:20 amSydney Kingsford Smith
43h 14m
2 stops
IAH1:34 pmHouston George Bush Intcntl
$1,056
Air Canada
Apr 19
IAH5:25 pmHouston George Bush Intcntl
22h 55m
1 stop
SYD7:20 amSydney Kingsford Smith
May 4
SYD9:20 amSydney Kingsford Smith
21h 24m
1 stop
IAH3:44 pmHouston George Bush Intcntl
$1,060
Air Canada
Apr 28
IAH5:25 pmHouston George Bush Intcntl
22h 55m
1 stop
SYD7:20 amSydney Kingsford Smith
May 12
SYD9:20 amSydney Kingsford Smith
43h 14m
2 stops
IAH1:34 pmHouston George Bush Intcntl
$1,063

Philippine Airlines flights from Houston George Bush Intcntl Airport to Sydney

Our best Philippine Airlines deals on Houston George Bush Intcntl Airport to Sydney flight tickets
Philippine Airlines
Aug 8
IAH8:31 pmHouston George Bush Intcntl
68h 29m
2 stops
SYD8:00 amSydney Kingsford Smith
Aug 19
SYD10:15 amSydney Kingsford Smith
48h 45m
2 stops
IAH8:00 pmHouston George Bush Intcntl
$1,164
Philippine Airlines
Aug 6
IAH8:31 pmHouston George Bush Intcntl
68h 29m
2 stops
SYD8:00 amSydney Kingsford Smith
Aug 16
SYD10:15 amSydney Kingsford Smith
48h 45m
2 stops
IAH8:00 pmHouston George Bush Intcntl
$1,192
Philippine Airlines
Aug 6
IAH8:31 pmHouston George Bush Intcntl
68h 29m
2 stops
SYD8:00 amSydney Kingsford Smith
Aug 16
SYD10:15 amSydney Kingsford Smith
48h 45m
2 stops
IAH8:00 pmHouston George Bush Intcntl
$1,193

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 March 23, 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

Tue 5/5

4:21 pm-10:10 pm

2 stops38h 49m

Sydney Kingsford Smith

Wed 5/27

1:20 pm-1:25 am

2 stops27h 05m

$920

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 4/28

4:32 pm-7:20 am

2 stops47h 48m

Sydney Kingsford Smith

Tue 5/12

9:20 am-1:34 pm

2 stops43h 14m

$1,056
Quickest round-trip

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 4/19

5:25 pm-7:20 am

1 stop22h 55m

Sydney Kingsford Smith

Mon 5/4

9:20 am-3:44 pm

1 stop21h 24m

$1,060

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 4/28

5:25 pm-7:20 am

1 stop22h 55m

Sydney Kingsford Smith

Tue 5/12

9:20 am-1:34 pm

2 stops43h 14m

$1,063

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 4/19

5:25 pm-7:20 am

1 stop22h 55m

Sydney Kingsford Smith

Mon 5/4

9:20 am-3:44 pm

1 stop21h 24m

$1,064

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 4/20

5:25 pm-7:20 am

1 stop22h 55m

Sydney Kingsford Smith

Mon 5/4

9:20 am-3:44 pm

1 stop21h 24m

$1,065

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 4/20

11:50 am-7:20 am

2 stops28h 30m

Sydney Kingsford Smith

Mon 5/4

9:20 am-3:44 pm

1 stop21h 24m

$1,073

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 4/19

5:25 pm-7:20 am

1 stop22h 55m

Sydney Kingsford Smith

Mon 5/4

9:20 am-3:44 pm

1 stop21h 24m

$1,076

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 4/19

11:50 am-7:20 am

2 stops52h 30m

Sydney Kingsford Smith

Mon 5/4

9:20 am-3:44 pm

1 stop21h 24m

$1,079

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sun 4/19

5:25 pm-7:20 am

1 stop22h 55m

Sydney Kingsford Smith

Mon 5/4

9:20 am-3:44 pm

1 stop21h 24m

$1,083

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 cheapest month to fly to Sydney?

In general, October 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 $1,130. If you are unable to visit Sydney during the month of October, then departing from Houston George Bush Intcntl Airport during the month August is also very affordable. Most momondo users find prices during this month for around $1,166.

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 $1,433 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 36% 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 March 2026, prices for Houston George Bush Intcntl Airport to Sydney flights are approximately 8% 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

Best Price Found

$1,480

Fastest flight time

17h 30m

Direct flights

None
The best flight deal from Houston George Bush Intcntl Airport to Sydney found on momondo in the last 72 hours is $1,480
The fastest flight from Houston George Bush Intcntl Airport to Sydney takes 17h 30m
There are no direct flights from Houston George Bush Intcntl Airport to Sydney. There are no popular flight routes from Houston George Bush Intcntl Airport to Sydney.
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 $203Free CancellationRating
7.9
8,317 reviews
Search Delta flights
Fiji AirwaysPriceFrom $702Free CancellationRating
8.1
235 reviews
Search Fiji Airways flights
Qantas AirwaysPriceFrom $794Free CancellationRating
7.5
1,009 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $844Free CancellationRating
7.1
11,489 reviews
Search American Airlines flights
United AirlinesPriceFrom $856Free CancellationRating
7.4
9,464 reviews
Search United Airlines flights
Air New ZealandPriceFrom $994Free CancellationRating
8.0
618 reviews
Search Air New Zealand flights
Air CanadaPriceFrom $1,037Free CancellationRating
7.1
10,835 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 $1,749, with the best United Airlines deals starting from $856 round-trip. 9,464 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
Parramatta
Bondi Beach
Katoomba
Wollongong
Penrith
Manly
Randwick
Coogee
Leura
Lithgow
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.

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
Wed 4/22
Wed 4/29
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia