Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Houston George Bush Intcntl Airport to Sydney from $395

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 9/8. 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 (IAH-SYD)

Cheap round-trip flights

Air Canada Logo
2:33 pm - 8:35 amIAH-SYD
50h 02m2 stops
Air Canada Logo
11:20 am - 1:24 pmSYD-IAH
43h 04m2 stops
$980Air Canada
Find Deal
Mon, Oct 27 - Sun, Nov 9
Logo
7:10 am - 11:45 amIAH-SYD
37h 35m2 stops
Logo
1:15 pm - 10:26 pmSYD-IAH
24h 11m2 stops
$982
Find Deal
Wed, Sep 24 - Wed, Oct 1
Air Canada Logo
9:35 am - 9:35 amIAH-SYD
31h 00m2 stops
Air Canada Logo
11:20 am - 1:39 pmSYD-IAH
43h 19m2 stops
$987Air Canada
Find Deal
Tue, Feb 3 - Tue, Feb 17
Air Canada Logo
11:50 am - 8:35 amIAH-SYD
52h 45m3 stops
Air Canada Logo
11:20 am - 1:24 pmSYD-IAH
43h 04m2 stops
$994Air Canada
Find Deal
Mon, Oct 27 - Sun, Nov 9
Air New Zealand Logo
9:55 pm - 10:35 amIAH-SYD
21h 40m1 stop
Air New Zealand Logo
8:45 am - 4:15 pmSYD-IAH
22h 30m1 stop
$995Air New Zealand
Find Deal
Wed, Sep 10 - Wed, Sep 24
Air Canada Logo
4:32 pm - 8:20 amIAH-SYD
47h 48m2 stops
Air Canada Logo
11:20 am - 5:24 pmSYD-IAH
22h 04m1 stop
$1,003Air Canada
Find Deal
Mon, Oct 20 - Sun, Nov 2
Logo
7:10 am - 11:45 amIAH-SYD
37h 35m2 stops
Logo
1:15 pm - 10:26 pmSYD-IAH
24h 11m2 stops
$1,004
Find Deal
Mon, Sep 8 - Mon, Sep 29
Air Canada Logo
2:33 pm - 9:35 amIAH-SYD
50h 02m2 stops
Air Canada Logo
11:20 am - 9:05 amSYD-IAH
38h 45m2 stops
$1,009Air Canada
Find Deal
Mon, Feb 2 - Sun, Feb 15
Air New Zealand Logo
4:20 pm - 8:45 amIAH-SYD
23h 25m2 stops
Air New Zealand Logo
9:55 am - 2:05 pmSYD-IAH
21h 10m1 stop
$1,021Air New Zealand
Find Deal
Mon, Nov 3 - Sun, Nov 16
ANA Logo
6:30 am - 8:15 pmIAH-SYD
44h 45m2 stops
ANA Logo
9:45 pm - 7:45 amSYD-IAH
27h 00m1 stop
$1,102ANA
Find Deal
Mon, Nov 24 - Sun, Dec 7

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
Oct 27
IAH2:33 pmHouston George Bush Intcntl
50h 02m
2 stops
SYD8:35 amSydney Kingsford Smith
Nov 9
SYD11:20 amSydney Kingsford Smith
43h 04m
2 stops
IAH1:24 pmHouston George Bush Intcntl
$980
Find similar
Air Canada
Feb 3
IAH9:35 amHouston George Bush Intcntl
31h 00m
2 stops
SYD9:35 amSydney Kingsford Smith
Feb 17
SYD11:20 amSydney Kingsford Smith
43h 19m
2 stops
IAH1:39 pmHouston George Bush Intcntl
$987
Find similar
Air Canada
Oct 27
IAH11:50 amHouston George Bush Intcntl
52h 45m
3 stops
SYD8:35 amSydney Kingsford Smith
Nov 9
SYD11:20 amSydney Kingsford Smith
43h 04m
2 stops
IAH1:24 pmHouston George Bush Intcntl
$994
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
Sep 10
IAH9:55 pmHouston George Bush Intcntl
21h 40m
1 stop
SYD10:35 amSydney Kingsford Smith
Sep 24
SYD8:45 amSydney Kingsford Smith
22h 30m
1 stop
IAH4:15 pmHouston George Bush Intcntl
$995
Find similar
Air New Zealand
Nov 3
IAH4:20 pmHouston George Bush Intcntl
23h 25m
2 stops
SYD8:45 amSydney Kingsford Smith
Nov 16
SYD9:55 amSydney Kingsford Smith
21h 10m
1 stop
IAH2:05 pmHouston George Bush Intcntl
$1,021
Find similar
Air New Zealand
Sep 16
IAH9:55 pmHouston George Bush Intcntl
21h 40m
1 stop
SYD10:35 amSydney Kingsford Smith
Oct 14
SYD9:55 amSydney Kingsford Smith
21h 20m
1 stop
IAH3:15 pmHouston George Bush Intcntl
$1,023
Find similar

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 August 11, 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 10/27

2:33 pm-8:35 am

2 stops50h 02m

Sydney Kingsford Smith

Sun 11/9

11:20 am-1:24 pm

2 stops43h 04m

$980

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 9/24

7:10 am-11:45 am

2 stops37h 35m

Sydney Kingsford Smith

Wed 10/1

1:15 pm-10:26 pm

2 stops24h 11m

$982

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Tue 2/3

9:35 am-9:35 am

2 stops31h 00m

Sydney Kingsford Smith

Tue 2/17

11:20 am-1:39 pm

2 stops43h 19m

$987

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 10/27

11:50 am-8:35 am

3 stops52h 45m

Sydney Kingsford Smith

Sun 11/9

11:20 am-1:24 pm

2 stops43h 04m

$994

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Wed 9/10

9:55 pm-10:35 am

1 stop21h 40m

Sydney Kingsford Smith

Wed 9/24

8:45 am-4:15 pm

1 stop22h 30m

$995

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 10/20

4:32 pm-8:20 am

2 stops47h 48m

Sydney Kingsford Smith

Sun 11/2

11:20 am-5:24 pm

1 stop22h 04m

$1,003

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 9/8

7:10 am-11:45 am

2 stops37h 35m

Sydney Kingsford Smith

Mon 9/29

1:15 pm-10:26 pm

2 stops24h 11m

$1,004

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 2/2

2:33 pm-9:35 am

2 stops50h 02m

Sydney Kingsford Smith

Sun 2/15

11:20 am-9:05 am

2 stops38h 45m

$1,009

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 11/3

4:20 pm-8:45 am

2 stops23h 25m

Sydney Kingsford Smith

Sun 11/16

9:55 am-2:05 pm

1 stop21h 10m

$1,021

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Mon 11/24

6:30 am-8:15 pm

2 stops44h 45m

Sydney Kingsford Smith

Sun 12/7

9:45 pm-7:45 am

1 stop27h 00m

$1,102

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, April 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 $932. If you are unable to visit Sydney during the month of April, then departing from Houston George Bush Intcntl Airport during the month June is also very affordable. Most momondo users find prices during this month for around $963.

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

The cheapest day to depart from Houston George Bush Intcntl Airport to Sydney is on a Tuesday when prices can be found for as low as $1,171. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $1,370.

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 at noon. momondo users have found flights departing from Houston George Bush Intcntl Airport to Sydney at noon for as low as $868. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the evening, with an average ticket price of $1,713. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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 $1,212 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 $962 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 25% 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 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

$395

Fastest flight time

17h 30m

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 $395. The best round-trip flight deal from Houston George Bush Intcntl Airport to Sydney found on momondo in the last 72 hours is $980.
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 near Sydney: Sydney Kingsford Smith (SYD)
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 19h 40m 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
Qantas AirwaysPriceFrom $799Free CancellationRating
7.5
893 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $829Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $830Free CancellationRating
8.0
7,979 reviews
Search Delta flights
Air New ZealandPriceFrom $957Free CancellationRating
8.0
503 reviews
Search Air New Zealand flights
Fiji AirwaysPriceFrom $995Free CancellationRating
8.0
202 reviews
Search Fiji Airways flights
Air CanadaPriceFrom $1,037Free CancellationRating
7.1
9,915 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,190Free CancellationRating
7.4
8,920 reviews
Search United Airlines 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
Randwick
Coogee
Cronulla
Penrith
Manly
Lithgow
Charlestown
Swansea
Leura
Terrigal

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 8/16
Sat 8/23
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia