A sunset over Sydney's skyline, including the Sydney Opera House and Harbour Bridge.

$768 Cheap Flights from Houston (IAH) to Sydney (SYD)

View $768 flight on Sun, Feb 21, 2027Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Sydney Airport (SYD)

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Cheap Flights from Houston to Sydney (IAH-SYD)

Prices were available within the past 7 days and start at $768 for one-way flights and $1,469 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sat, Nov 7 - Sun, Nov 22
IAH
Houston
SYD
Sydney
$1,469 Roundtrip, found 12 hours ago
$1,469
Roundtrip
found 12 hours ago
Select Air Canada flight, departing Sat, Nov 7 from Houston to Sydney, returning Sun, Nov 22, priced at $1,469 found 12 hours ago
Air Canada
Sun, Feb 21 - Sun, Feb 28
IAH
Houston
SYD
Sydney
$1,470 Roundtrip, just found
$1,470
Roundtrip
just found
Select Air Canada flight, departing Sun, Feb 21 from Houston to Sydney, returning Sun, Feb 28, priced at $1,470 just found
Air Canada
Tue, Nov 17 - Wed, Nov 25
IAH
Houston
SYD
Sydney
$1,474 Roundtrip, found 12 hours ago
$1,474
Roundtrip
found 12 hours ago
Select Air Canada flight, departing Tue, Nov 17 from Houston to Sydney, returning Wed, Nov 25, priced at $1,474 found 12 hours ago
Alaska Airlines
Wed, Mar 17 - Mon, Mar 22
IAH
Houston
SYD
Sydney
$1,475 Roundtrip, found 2 days ago
$1,475
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Mar 17 from Houston to Sydney, returning Mon, Mar 22, priced at $1,475 found 2 days ago
Air New Zealand
Wed, Mar 3 - Mon, Mar 15
IAH
Houston
SYD
Sydney
$1,569 Roundtrip, found 2 hours ago
$1,569
Roundtrip
found 2 hours ago
Select Air New Zealand flight, departing Wed, Mar 3 from Houston to Sydney, returning Mon, Mar 15, priced at $1,569 found 2 hours ago
Alaska Airlines
Wed, Nov 4 - Tue, Nov 17
IAH
Houston
SYD
Sydney
$1,595 Roundtrip, found 5 days ago
$1,595
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Nov 4 from Houston to Sydney, returning Tue, Nov 17, priced at $1,595 found 5 days ago
Turkish Airlines
Thu, Feb 18 - Thu, Feb 25
IAH
Houston
SYD
Sydney
$1,598 Roundtrip, found 11 hours ago
$1,598
Roundtrip
found 11 hours ago
Select Turkish Airlines flight, departing Thu, Feb 18 from Houston to Sydney, returning Thu, Feb 25, priced at $1,598 found 11 hours ago
Cathay Pacific
Wed, Mar 10 - Mon, Mar 22
IAH
Houston
SYD
Sydney
$1,613 Roundtrip, just found
$1,613
Roundtrip
just found
Select Cathay Pacific flight, departing Wed, Mar 10 from Houston to Sydney, returning Mon, Mar 22, priced at $1,613 just found
United
Sun, Nov 15 - Wed, Nov 25
IAH
Houston
SYD
Sydney
$1,645 Roundtrip, found 12 hours ago
$1,645
Roundtrip
found 12 hours ago
Select United flight, departing Sun, Nov 15 from Houston to Sydney, returning Wed, Nov 25, priced at $1,645 found 12 hours ago
Qantas Airways
Mon, Nov 16 - Mon, Nov 30
IAH
Houston
SYD
Sydney
$1,653 Roundtrip, found 16 hours ago
$1,653
Roundtrip
found 16 hours ago
Select Qantas Airways flight, departing Mon, Nov 16 from Houston to Sydney, returning Mon, Nov 30, priced at $1,653 found 16 hours ago

Alternative airports near Sydney

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Kingsford Smith Intl. SYD. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $1,811
SYD
Kingsford Smith Intl.
Cheapest
Average driving time to city center16 min
Flights from $1,811

What you need to know for your flight from George Bush Intercontinental to Kingsford Smith Intl.

Houston (IAH) to Sydney (SYD) at a glance

Travel from Houston (IAH) to Sydney (SYD) with a range of airlines on this international long-haul journey. Discover options for flights from Houston that cater to various budgets and schedules, helping you select the itinerary that suits your travel plans. Whether you're seeking cheap flights from Houston or simply want to explore the vibrant sights and neighborhoods of Sydney, you'll find essential details for your journey from George Bush Intercontinental Airport to Kingsford Smith International Airport.

  • Fastest flight duration: around 17h 30m non-stop
  • Route distance: roughly 8,600 miles (13,840 km)
  • Flights per week: around 8 departures on average
  • Typical fares (one-way): economy tickets often range from $420–$1195, depending on seasonality and how far ahead you book

Flights from George Bush Intercontinental Airport (IAH) to Kingsford Smith International Airport (SYD)

Based on the latest traveler bookings, here are the top airlines favored for flights from Houston to Sydney, featuring both non-stop and one-stop options. Popular layover airports include Los Angeles International Airport (LAX) with approximately a 2h 30m layover, Auckland International Airport (AKL) with around 1h 30m, and Dallas-Fort Worth International Airport (DFW) offering a layover of about 2h 45m. This variety allows you to compare prices, total travel times, and cabin classes to craft the ideal itinerary for your journey.

  • United: This full-service airline provides both non-stop and one-stop options, with one-way ticket prices generally falling between $430 and $3100. United operates around 30% of the flights on this route, with a standard non-stop travel duration of 17 hours and 30 minutes.
  • Air New Zealand: A comprehensive service airline that offers one-stop routes, featuring one-way fares typically ranging from $525 to $1180. It accounts for about 23% of departures on this journey, with an in-flight time of 18 hours and 45 minutes and an overall travel duration of approximately 21 hours and 30 minutes, including layovers.
  • American Airlines: This full-service carrier provides one-stop and multi-stop services, with one-way fares usually between $420 and $1010. It represents around 23% of departures on this route, with a typical one-stop flight lasting 18 hours and 45 minutes and a total travel time close to 21 hours and 30 minutes.
  • Delta: As a full-service airline offering one-stop flights, Delta's one-way fares usually range from $420 to $1110. This carrier accounts for roughly 11% of departures on this route, with an in-flight duration of 18 hours and 45 minutes and a total journey time of about 21 hours and 30 minutes, including layovers.
  • Qantas Airways: This full-service carrier provides one-stop options, with one-way fares typically ranging from $440 to $1030. Qantas makes up about 6% of departures on this route, with an in-flight experience of 18 hours and 45 minutes and a total travel time of roughly 21 hours and 30 minutes, factoring in layovers.

Travelers flying from Houston to Sydney can opt for an upgrade, with United offering both business class and premium economy class service on this route for enhanced comfort during their journey.

Best time to fly from Houston (IAH) to Sydney (SYD)

The most popular months for travelers flying from Houston to Sydney are February, March, and June, when peak temperatures in Sydney reach up to 72.7°F in February. If you prefer quieter travel, consider May, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 61.2°F. For better deals, June usually offers the lowest average one-way fare around $512. Flight availability peaks in August, with approximately 11 flights per week, making it easier to find convenient departure times. July has the fewest flights, with approximately 7 flights per week.

  • Cheapest time to fly: June usually offers good deals with average one-way fare around $512, roughly 40% cheaper than the yearly average.
  • Another budget-friendly time to fly: May typically offers an average one-way fare of around $582.
  • Most flight options: August has the highest number of flights from Houston to Sydney, with approximately 11 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January73.4°F (23.0°C)Average8$1005
February72.7°F (22.6°C)High8$755
March70.9°F (21.6°C)High10$735
April66.4°F (19.1°C)Average8$766
May61.2°F (16.2°C)Low8$582
June57.2°F (14.0°C)High9$512
July55.9°F (13.3°C)Average7$891
August57.2°F (14.0°C)Average11$651
September61.2°F (16.2°C)Low9$1064
October64.6°F (18.1°C)Low8$610
November67.6°F (19.8°C)Average8$1103
December70.3°F (21.3°C)Average8$1573

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Houston (IAH) to Sydney (SYD)

  • Houston to Sydney (HOU-SYD): William P. Hobby Airport (HOU) is located approximately 23 miles from George Bush Intercontinental Airport (IAH). On this route, one-way economy prices generally fall between $405 and $610, which can vary based on the time of year and how far in advance you book. Most travelers will find one-stop options, primarily connecting through Dallas-Fort Worth International Airport (DFW). The leading airlines on this route include American Airlines and Qantas Airways.

How to find the best prices for flights from Houston (IAH) to Sydney (SYD)

Getting some of the best deals on flights from Houston to Sydney is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are typically found when booking at least two months in advance, which aligns with when most travelers make their reservations. Evening departures between 6 PM and midnight tend to offer lower prices and are also the most popular flight times. Additionally, flying on Saturday often provides cheaper options, although Wednesday is the most popular travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Kingsford Smith International Airport from George Bush Intercontinental Airport

Sydney welcomes travelers from Houston with a range of transport options based on price, convenience, and proximity. Here's how to reach Sydney efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Sydney, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Kingsford Smith International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Kingsford Smith International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Kingsford Smith International Airport, International Airport Station (a metro station) is just a short 0.1-mile walk away, while Sydney Arncliffe Station (a train station) is approximately 1.2 miles from the airport by car. For those traveling by sea, Sydney Seaport is located about 6.7 miles away, typically reached by car.

Frequently asked questions

How much does a flight from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) cost?
You can find cheap one-way flights from $768 and cheap return flights from $1,469 Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) with Expedia. One-way flights typically cost between $895 and $11142, and return flights often range between $1405 and $11672. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
February is typically the cheapest month to fly from Houston (IAH) to Sydney (SYD), with average return fares around $1,150. This price is about 22% lower than the average throughout the year, as February is a quieter travel month following the holiday season. Other budget-friendly months to fly from IAH to SYD include March and November.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
United operates around 7 direct flights from IAH to SYD every week.
How do I find cheap flights from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
To find a cheap flight from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
The best airline to fly with from Houston, TX (IAH) to Sydney, NSW (SYD) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, United typically offers the lowest fares. United offers the most daily flights from IAH to SYD, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
When flying from Houston, TX (IAH) to Sydney (SYD), February and March are your best bets. Return flights average around $1,150 during these months. February offers warm summer weather in Sydney, while March sees fewer tourists, allowing for a more relaxed travel experience.*Prices based on flights available on Expedia in the last year.
How many flights per day from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
There are approximately 1 nonstop flights per day from George Bush Intercontinental (IAH) to Kingsford Smith Intl. (SYD). For more options, look at flights that include layovers.
What is the earliest flight from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
The earliest flight from George Bush Intercontinental (IAH) to Kingsford Smith International (SYD) usually departs at around 1:00 AM, operated by EVA Airways and Garuda. This early flight allows you to arrive in Sydney with plenty of time to explore. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
The most popular departure times for flights from George Bush Intercontinental (IAH) to Kingsford Smith Intl. (SYD) are in the evening, from 6pm to 9pm. About 41% of passengers prefer this time window. Many major carriers, including United Airlines and Air New Zealand, offer flights during this window. This timing is popular because it allows you to maximize your day in Houston before your flight.
How long does it take to fly from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
Flying nonstop from IAH to SYD takes around 17 hours 30 minutes, with the route covering approximately 8,598 miles. Flights with a layover typically take 4 hours longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
Business class is available on flights from IAH to SYD. Airlines that offer business class service on this route include:

  • Emirates
  • All Nippon Airways
  • American Airlines
  • Air Canada
  • Qatar Airways
  • Air New Zealand
  • United Airlines
  • Turkish Airlines
  • British Airways
  • Delta Air Lines

First class cabins are available on:

  • American Airlines
  • Emirates
  • British Airways

How much is a business class flight from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
A direct, return business class ticket from Houston, TX (IAH) to Sydney, NSW (SYD) typically costs between $9,931 - $10,861. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight with Expedia?
It's easy to earn miles on a Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Sydney from George Bush Intercontinental (IAH)?
From George Bush Intercontinental (IAH), you can fly into Kingsford Smith Intl. (SYD) to reach Sydney. Some flights may connect through major hubs like Dallas-Fort Worth Intl. (DFW), Los Angeles Intl. (LAX), Pearson Intl. (YYZ) before reaching Sydney. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) at the last minute?
Typically, booking a last minute flight from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight and hotel package?
Securing a Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) Sydney Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
If you booked your Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
George Bush Intercontinental
Destination airport
Kingsford Smith Intl.
Airlines serving
Air Canada, Air New Zealand, Alaska Airlines, All Nippon Airways, American Airlines, British Airways, Cathay Pacific, Delta, Emirates, Etihad Airways, Japan Airlines, Lufthansa, Malaysia Airlines, Qantas Airways, Qatar Airways, Turkish Airlines, United
Roundtrip price
$1,469
Distance
8597 mi

Book with confidence

Houston to Sydney Flights

The cheapest times to fly from Houston to Sydney

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Houston to Sydney are during the month of November. You can find some of the cheapest flights from Houston to Sydney with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to Sydney

Sunday is one of the best days to book for cheap flights from Houston to Sydney: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Houston to Sydney

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Houston to Sydney in 2026. You can also book with separate airlines for your outbound and return journeys, from $768 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Houston to Sydney flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Houston to Sydney airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Houston to Sydney Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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