$540 Cheap Flights from Houston (HOU) to Adelaide (ADL)

View $540 flight on Sun, Nov 30, 2025Opens in a new window

Popular airlines from Houston William Hobby Airport (HOU) to Adelaide, SA Airport (ADL)

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Cheap Flights from Houston to Adelaide (HOU-ADL)

Prices were available within the past 7 days and start at $540 for one-way flights and $1,083 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Jan 20 - Sun, Jan 25
HOU
Houston
ADL
Adelaide
$1,083 Roundtrip, found 4 days ago
$1,083
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Jan 20 from Houston to Adelaide, returning Sun, Jan 25, priced at $1,083 found 4 days ago

Alternative airports near Adelaide

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

Select flight to Adelaide, SA Airport ADL. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $1,012
ADL
Adelaide, SA Airport
CheapestClosest
Average driving time to city center11 min
Flights from $1,012

Frequently asked questions

How much does a flight from William P. Hobby Airport (HOU) to Adelaide Airport (ADL) cost?
Grab a cheap one-way flight from $540 or cheap return flight from $1,083 from William P. Hobby Airport (HOU) to Adelaide Airport (ADL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from William P. Hobby Airport (HOU) to Adelaide Airport (ADL)?
Planning your getaway for January can help you save, as it's the cheapest month for flights between HOU and ADL. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from William P. Hobby Airport (HOU) to Adelaide Airport (ADL)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest HOU to ADL flight.
How many flights per day from William P. Hobby Airport (HOU) to Adelaide Airport (ADL)?
You'll need to take a flight with a layover if you're traveling from William P. Hobby Airport (HOU) to Adelaide Airport (ADL). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from HOU to ADL?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from William P. Hobby Airport (HOU) to Adelaide Airport (ADL)?
To avoid potential delays on the William P. Hobby Airport (HOU) to Adelaide Airport (ADL) route, aim to travel before 3 PM. Departures after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from William P. Hobby Airport (HOU) to Adelaide Airport (ADL) last-minute?
Last-minute bookings from HOU to ADL are usually more expensive. To lock in the best prices, start searching for flights well in advance. That being said, if you're flexible with your travel dates, you may score a cheap ticket just before your departure.
Is it cheaper to book a HOU to ADL flight and hotel package?
Securing a HOU to ADL flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our extensive range of accommodations and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from William P. Hobby Airport (HOU) to Adelaide Airport (ADL)?
If you booked your HOU to ADL flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

Travel information

Origin airport
William P. Hobby
Destination airport
Adelaide
Airlines serving
American Airlines, Qantas Airways
Roundtrip price
$1,082
Distance
9309 mi

Book with confidence

Houston to Adelaide Flights

The cheapest times to fly from Houston to Adelaide

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 Adelaide are during the month of January. You can find some of the cheapest flights from Houston to Adelaide with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to Adelaide

Sunday is one of the best days to book for cheap flights from Houston to Adelaide: 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 Adelaide

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 Adelaide in 2025. You can also book with separate airlines for your outbound and return journeys, from $540 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 Adelaide 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 Adelaide 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 Adelaide Flights

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