Cheap Flights from Houston to Sydney

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Flight deals from Houston to Sydney

Looking for a cheap last-minute deal or the best return flight from Houston to Sydney? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Houston to Sydney

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Houston to Sydney flights are currently cheapest in June.

Direct flights from Houston to Sydney

Houston to Sydney: Alternative routes

Compare routes from Houston to Sydney below. You may find an airport to fly into that's cheaper, faster, or easier than Sydney.

Houston to Sydney: Flight information

The things to know before you go.
Cheapest flight found968 €
Cheapest month to flyJune
Average flight time17 hrs, 33 mins
Most popular airlineUnited
Average flights per week46

Finding cheap flights from Houston to Sydney: Frequently asked questions

The best price we found for a return flight from Houston to Sydney is 968 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
17 hours and 33 minutes is the average flight time from Houston to Sydney.
United, Lufthansa and Virgin Australia fly direct from Houston to Sydney.
As of April 2025, there are 46 flights per week flying from Houston to Sydney.
The cheapest month to fly from Houston to Sydney is usually April 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Houston to Sydney Airport on Tuesday, 3 June 2025.
Yes – the average flight time is 17 hours and 33 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Sydney but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Sydney is around 40 days in advance, so don’t leave your flight to the last minute.

Flying from Houston to Sydney (Kingsford Smith) Airport (SYD): what you need to know

  • There are a couple of main airports you can fly out of in Houston. Explore your options leaving from George Bush Intercontinental Airport (IAH) or William P. Hobby Airport (HOU) when searching for a flight from Houston to Sydney (Kingsford Smith) Airport (SYD).

  • Expect to be in the air for 17 hours 35 minutes. That's the average journey time for a direct flight from Houston to Sydney (Kingsford Smith) Airport.

  • Sydney is 16 hours ahead of Houston. Sydney (Kingsford Smith) Airport is located in Sydney, which operates on the UTC+11 timezone.

  • With 5 direct flights a week between the two airports, George Bush Intercontinental Airport (IAH) to Sydney (Kingsford Smith) Airport (SYD) is the most popular route. United operates the earliest flight at 20:25. If you prefer to make the most of your day before taking off, the last flight from IAH to SYD is with United at 21:25.

  • Your flight from Houston to SYD won't wait if you're running late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.

  • Popular months like July or holiday periods such as Thanksgiving and Christmas/New Year will mean bigger waits at check-in and security. Travelling then? Play it safe and head to the terminal even earlier. Arriving two hours before domestic flights and up four hours ahead of international flights is a smart move.

Airports in Houston

George Bush Intercontinental Airport (IAH)

  • Get there in one go from George Bush Intercontinental Airport (IAH). Nonstop flights from Houston to Sydney (Kingsford Smith) Airport (SYD) operate from here.

  • If you plan to leave from IAH, you can take a direct flight from Houston to Sydney (Kingsford Smith) Airport with United.

  • We make it a piece of cake to plan a flight from Houston to SYD that includes a stopover. To see all your options leaving from George Bush Intercontinental Airport (IAH), uncheck 'Direct flights only.' Then, simply pick a flight that has a stop long enough to tour the city of your choice. Popular stopovers between IAH and SYD include:

    • Los Angeles International Airport (LAX)

    • Auckland Airport (AKL)

    • Dallas/Fort Worth International Airport (DFW)

  • IAH is roughly 27 kilometres from the centre of Houston. To help work out how to get there, use Google Maps. This useful travel app will give you the quickest route and available public transport options.

  • Planning to catch an early flight from Houston to Sydney (Kingsford Smith) Airport? Avoid the hassle of rushing to the terminal (and enjoy a little extra shut-eye) by picking one of these stays near George Bush Intercontinental Airport:

William P. Hobby Airport (HOU)

  • Want more options for a direct flight from Houston to Sydney (Kingsford Smith) Airport (SYD)? Browse the fares departing from William P. Hobby Airport (HOU).

  • From HOU, direct flights from Houston to SYD can be booked with United.

  • Split up your flight from Houston to Sydney (Kingsford Smith) Airport with a stop so you can freshen up or tick another place off your list. Some great stopovers between William P. Hobby Airport and SYD include:

    • Dallas/Fort Worth International Airport (DFW)

    • Los Angeles International Airport (LAX)

    • Auckland Airport (AKL)

  • You can reach HOU from central Houston in about 22 minutes by car, depending on traffic. The journey on public transport will take roughly 1 hour and 42 minutes to cover the 19 kilometres or so.

  • Get your holiday started early with an additional night away from home. Before your flight from Houston to SYD, take things easy in one of these hotels close to William P. Hobby Airport:

About Sydney (Kingsford Smith) Airport (SYD)

Getting from Sydney (Kingsford Smith) Airport (SYD) to central Sydney

  • Sydney (Kingsford Smith) Airport is approximately 18 kilometres from central Sydney. With your own car rental or in a cab, the drive is around 21 minutes.

  • It takes around 27 minutes to get there using public transport.

How to find the cheapest flights from Houston to Sydney (Kingsford Smith) Airport (SYD)

  • The lowest price we've found for a one-way ticket from Houston to Sydney (Kingsford Smith) Airport is 379 €. The cheapest price for a return flight is 968 €. Remember fares may change due to availability at the time of booking.

  • Get cheap tickets from Houston to SYD by booking 6 months ahead. According to flight price data, that's the sweet spot for finding the biggest deals.

  • You'll snag the best savings on your tickets from Houston to Sydney (Kingsford Smith) Airport if you take off in March. Take it one step further and use the 'Whole month' search tool to see the cheapest day to fly out.

  • Locking in a cheap ticket from Houston to SYD is a piece of cake with Price Alerts. Simply create one of these automatic alerts and we'll get in touch as soon as there's a better deal.

  • Use the filters to tailor your flights from Houston to Sydney (Kingsford Smith) Airport. Pick your preferred departure and arrival times, airlines and number of stops. You can also sort your results by 'Cheapest' to find the best deals.

The best time to fly from Houston to Sydney (Kingsford Smith) Airport (SYD)

  • It's time to work out your dates for your flight from Houston to Sydney (Kingsford Smith) Airport. July is the most popular month to travel to Sydney. If you want a quieter vibe, go in April.

  • When booking your flight from Houston to SYD, think about the kind of weather you enjoy. January is the warmest month in Sydney, with the temperature ranging from 17ºC to 32ºC.

  • Search for cheap flights from Houston to Sydney (Kingsford Smith) Airport in July if you'd rather travel during cooler conditions. Temperatures are at their lowest around then, ranging between 5ºC and 19ºC on average.

More about Sydney

  • Start your Sydney trip off on the right foot by choosing the perfect place to stay. Once you've booked your flight from Houston to Sydney (Kingsford Smith) Airport, check out our range of hotels including:

  • One of the best ways to get a feel for Sydney is to explore its leading attractions. Some highlights include Sydney Opera House, Sydney Harbour Bridge and Bondi Beach.

Complete your Sydney trip with a car rental

  • We use the same magic that helped you find your cheap flight from Houston to Sydney (Kingsford Smith) Airport to track down your perfect ride. Check out our car rentals in Sydney and compare offers in one place. Plus we give you all the info you need to know, from the most popular rental company to the average daily price.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.