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Cheap Flights from Houston to Sydney

Compare Houston to Sydney flight deals

Find the cheapest month or even day of the year to fly 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.
Sydney.Rs138,602 per passenger.Departing Wed, 17 Sep.One-way flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Houston George Bush Intercntl. on Wed, 17 Sep, arriving in Sydney.Price includes taxes and charges.From Rs138,602, select.
Sydney.Rs149,916 per passenger.Departing Fri, 17 Oct.One-way flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Houston George Bush Intercntl. on Fri, 17 Oct, arriving in Sydney.Price includes taxes and charges.From Rs149,916, select.
Sydney.Rs156,422 per passenger.Departing Sun, 2 Nov.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Sun, 2 Nov, arriving in Sydney.Price includes taxes and charges.From Rs156,422, select.
Sydney.Rs171,472 per passenger.Departing Tue, 24 Mar.One-way flight with Fiji Airways.Outbound indirect flight with Fiji Airways, departs from Houston George Bush Intercntl. on Tue, 24 Mar, arriving in Sydney.Price includes taxes and charges.From Rs171,472, select.
Sydney.Rs172,140 per passenger.Departing Sat, 6 Dec.One-way flight with Fiji Airways.Outbound indirect flight with Fiji Airways, departs from Houston George Bush Intercntl. on Sat, 6 Dec, arriving in Sydney.Price includes taxes and charges.From Rs172,140, select.
Sydney.Rs186,105 per passenger.Departing Tue, 26 May.One-way flight with Fiji Airways.Outbound indirect flight with Fiji Airways, departs from Houston George Bush Intercntl. on Tue, 26 May, arriving in Sydney.Price includes taxes and charges.From Rs186,105, select.
Sydney.Rs187,167 per passenger.Departing Sat, 11 Apr.One-way flight with Fiji Airways.Outbound indirect flight with Fiji Airways, departs from Houston George Bush Intercntl. on Sat, 11 Apr, arriving in Sydney.Price includes taxes and charges.From Rs187,167, select.
Sydney.Rs187,958 per passenger.Departing Sat, 23 Aug.One-way flight with Fiji Airways.Outbound indirect flight with Fiji Airways, departs from Houston George Bush Intercntl. on Sat, 23 Aug, arriving in Sydney.Price includes taxes and charges.From Rs187,958, select.

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 September.
Aug
from Rs187,958
Sep
from Rs138,602
Oct
from Rs149,916
Nov
from Rs156,422
Dec
from Rs172,140
Jan
from Rs194,537
Feb
from Rs192,882
Mar
from Rs171,472
Apr
from Rs187,167
May
from Rs186,105
Jun
from Rs234,082
Jul
Find prices

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 foundRs138,602
Cheapest month to flySeptember
Average flight time17 hrs, 33 mins
Most popular airlineUnited
Average flights per week23

Finding cheap flights from Houston to Sydney: Frequently asked questions

The best price we found for a return flight from Houston to Sydney is Rs276,889. 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 August 2025, there are 23 flights per week flying from Houston to Sydney.
The cheapest month to fly from Houston to Sydney is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Houston to Sydney Airport on Wednesday, 10 September 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.

Travelling from Houston to Sydney (Kingsford Smith) Airport (SYD): What you need to know

  • Houston is home to a couple of airports where you can kick off your travels. Check out your options for reserving a flight from Houston to Sydney (Kingsford Smith) Airport (SYD) flying out of George Bush Intercontinental Airport (IAH) or William P. Hobby Airport (HOU).

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

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

  • Choose from 2 direct flights each week between George Bush Intercontinental Airport (IAH) and Sydney (Kingsford Smith) Airport (SYD). This is the busiest route, with United Airlines offering a 8:25pm departure from IAH to SYD.

  • For stress-free travel, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This way, you can comfortably board your flight from Houston to SYD.

  • In high season, allow for longer wait times and be there earlier. Aim for at least two hours ahead for domestic flights and up to four hours for international journeys.

Airports in Houston

George Bush Intercontinental Airport (IAH)

  • George Bush Intercontinental Airport (IAH) makes it easy to travel directly to your destination. Nonstop flights from Houston to Sydney (Kingsford Smith) Airport (SYD) can be booked from this terminal.

  • You can lock in a direct flight from Houston to Sydney (Kingsford Smith) Airport with United Airlines. This well-known airline operates services from IAH.

  • United Airlines is the airline with the highest passenger demand for flights from IAH to SYD.

  • The carrier with the most reliable on-time performance on this route is United Airlines. Its services arrive as planned 69.23% of the time.

  • We make it a breeze to book cheap flights from Houston to SYD with a stopover. To explore all your options departing from George Bush Intercontinental Airport (IAH), deselect 'Direct flights only.' Next, pick a flight with a stop long enough to tour your chosen city. Top stopovers between IAH and SYD include:

    • Dallas/Fort Worth International Airport (DFW)

    • Los Angeles International Airport (LAX)

    • Auckland Airport (AKL)

  • Located around 27 kilometres from the centre of Houston, IAH can be reached in about 20 minutes by car (depending on traffic). The journey on public transport takes roughly 50 minutes.

  • Want a relaxed start to your journey? Stay near George Bush Intercontinental Airport. Whether you've booked an early flight from Houston to Sydney (Kingsford Smith) Airport or aren't a fan of being rushed, these hotels are just what you're after:

  • 78.42% of flights that depart George Bush Intercontinental Airport arrive at their destination on schedule.

  • You'll find IAH at 16930 JFK Boulevard.

William P. Hobby Airport (HOU)

  • Get the most out of your holiday with a stopover on your flight from Houston to Sydney (Kingsford Smith) Airport. Dallas/Fort Worth International Airport (DFW) is a popular option between William P. Hobby Airport and SYD.

  • You can reach HOU from central Houston in approximately 20 minutes by car (depending on traffic). The journey on public transport will take roughly 1 hour 40 minutes to cover the 19 kilometres or so.

  • Flying out early in the morning? Think about staying at one of these hotels near William P. Hobby Airport the day before your Houston to SYD flight:

  • The majority of flights that leave William P. Hobby Airport touch down at their destination as expected. It boasts a strong on-time performance rate of 81.06%.

  • You'll find HOU at 7800 Airport Boulevard.

About Sydney (Kingsford Smith) Airport (SYD)

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

  • Sydney (Kingsford Smith) Airport is around 18 kilometres from central Sydney. It takes around 20 minutes or so to drive to the city.

  • It'll take around 25 minutes if you're travelling by public transport.

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

  • Rs138,602 is currently the best price for a one-way ticket from Houston to Sydney (Kingsford Smith) Airport. A return flight starts from Rs276,889. These fares can change depending on availability and demand.

  • To score cheap flights from Houston to SYD, book your ticket ten months ahead of your planned departure.

  • March is when you're most likely to find a bargain on a Houston to Sydney (Kingsford Smith) Airport ticket. If you need to travel at a different time of year, the 'Whole month' tool will give you the lowest prices across every month.

  • Snapping up a cheap flight ticket from Houston to SYD is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch as soon as the price has dropped.

  • Tailor your travel plans using filters. Pick your arrival and departure times, airlines and total journey duration. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest' flights from Houston to Sydney (Kingsford Smith) Airport.

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

  • It's time to figure out your travel dates for your flight from Houston to Sydney (Kingsford Smith) Airport (SYD). July is when most people visit Sydney. If you're all about a more relaxed kind of trip, think about going in April.

  • The warmest month in Sydney is January, with temperatures ranging between 17ºC and 32ºC. Book your Houston to SYD flight ticket then if that's your ideal forecast.

  • If you want cooler conditions, search for a cheap ticket from Houston to Sydney (Kingsford Smith) Airport in July when temperatures are between 5ºC and 19ºC.

More about Sydney

  • Once you've booked your flight from Houston to Sydney (Kingsford Smith) Airport, find a hotel that's got location and comfort covered. Make one of these options your base for exploring Sydney:

  • There are plenty of exciting things to do in Sydney when you're ready to get out and sightsee. Kick things off at Sydney Harbour followed by Sydney Harbour Bridge and Sydney Harbour.

Explore more of Australia

  • Canberra is just one of the many cities in Australia waiting to be explored once you've taken in the sights of Sydney. Around 241 kilometres away to the south-west, check out popular attractions including Australian War Memorial, National Gallery of Australia and National Portrait Gallery.

  • Newcastle is another favourite destination in Australia and is around 129 kilometres north-east of Sydney. No trip is complete without a visit to Merewether Beach, Bathers Way Coastal Walk and Nobbys Beach.

Plan the rest of your trip from Houston to Sydney

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