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Cheap flights from Houston to Adelaide from $2,139

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — ADL
26 Aug — 2 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Houston to Adelaide

Enter your travel dates to find the best prices.

Cheapest flights from Houston to Adelaide
Explore the most affordable flight options available from Houston to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 July 2026.

Sat 12/921:30
IAH
-
ADL
2 stops49h 45m
United Airlines
Mon 21/907:15
ADL
-
IAH
2 stops24h 11m
United Airlines
Deal found 25/7$2,139
Fri 13/1115:19
IAH
-
ADL
2 stops35h 11m
Qantas Airways
Sun 29/1106:00
ADL
-
IAH
2 stops25h 16m
Qantas Airways
Deal found 24/7$2,172
Fri 13/1120:25
IAH
-
ADL
1 stop25h 00m
United Airlines
Sun 29/1119:55
ADL
-
IAH
1 stop28h 35m
United Airlines
Deal found 26/7$2,208
Fri 13/1112:16
IAH
-
ADL
2 stops30h 09m
Air New Zealand
Sun 29/1119:10
ADL
-
IAH
2 stops41h 42m
Air New Zealand
Deal found 26/7$2,248
Sat 31/1021:25
IAH
-
ADL
1 stop22h 00m
United Airlines
Wed 4/1119:55
ADL
-
IAH
1 stop28h 35m
United Airlines
Deal found 26/7$2,280
Wed 9/917:55
HOU
-
ADL
2 stops31h 55m
Singapore Airlines
Wed 16/909:10
ADL
-
HOU
2 stops39h 50m
Singapore Airlines
Deal found 26/7$3,392
Mon 7/909:32
HOU
-
ADL
2 stops31h 58m
Multiple Airlines
Mon 14/913:25
ADL
-
HOU
2 stops40h 48m
Multiple Airlines
Deal found 24/7$3,535
Wed 9/918:34
HOU
-
ADL
2 stops26h 01m
Multiple Airlines
Wed 16/906:00
ADL
-
HOU
3 stops24h 13m
Multiple Airlines
Deal found 26/7$3,699
Sat 12/916:18
HOU
-
ADL
2 stops26h 37m
Qantas Airways
Mon 21/906:00
ADL
-
HOU
2 stops24h 13m
Qantas Airways
Deal found 25/7$3,775
Sat 31/1014:01
HOU
-
ADL
2 stops29h 29m
Qantas Airways
Wed 4/1106:25
ADL
-
HOU
2 stops26h 37m
Qantas Airways
Deal found 26/7$4,582
Tue 15/911:31
HOU
-
ADL
2 stops33h 04m
Qantas Airways
Tue 22/919:45
ADL
-
HOU
2 stops36h 44m
Qantas Airways
Deal found 26/7$19,187
Tue 15/918:34
HOU
-
ADL
2 stops26h 01m
Multiple Airlines
Tue 22/906:00
ADL
-
HOU
3 stops24h 13m
Multiple Airlines
Deal found 26/7$21,781

Find flight deals from Houston to Adelaide

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) to Adelaide (ADL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 27 July 2026.

Round-trip from

$2,139
United Airlines
  • United Airlines
  • 12/9-21/9
  • 4 total stops
  • 73h 56m total
  • Houston to Adelaide
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Houston to Adelaide 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, Cheapflights users made 647,157 searches. Data last updated 27 July 2026.
Use the filters below to find and compare flights from Houston to Adelaide that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

HoustonAdelaide

IAH - ADL

IAHADL

Houston George Bush Intcntl

Fri 13/11

20:25-13:55

1 stop25h 00m

Adelaide

Sun 29/11

19:55-08:00

1 stop28h 35m

$2,208
Fastest return journey

HoustonAdelaide

IAH - ADL

IAHADL

Houston George Bush Intcntl

Fri 13/11

19:55-10:55

1 stop22h 30m

Adelaide

Sun 29/11

12:05-14:15

1 stop18h 40m

$2,273

HoustonAdelaide

IAH - ADL

IAHADL

Houston George Bush Intcntl

Sat 31/10

21:25-10:55

1 stop22h 00m

Adelaide

Wed 4/11

19:55-08:00

1 stop28h 35m

$2,280

HoustonAdelaide

HOU - ADL

HOUADL

Houston Hobby

Wed 9/9

17:55-16:20

2 stops31h 55m

Adelaide

Wed 16/9

09:10-10:30

2 stops39h 50m

$3,392

HoustonAdelaide

HOU - ADL

HOUADL

Houston Hobby

Mon 7/9

09:32-08:00

2 stops31h 58m

Adelaide

Mon 14/9

13:25-15:43

2 stops40h 48m

$3,535

HoustonAdelaide

HOU - ADL

HOUADL

Houston Hobby

Wed 9/9

18:34-11:05

2 stops26h 01m

Adelaide

Wed 16/9

06:00-15:43

3 stops24h 13m

$3,699

HoustonAdelaide

HOU - ADL

HOUADL

Houston Hobby

Sat 12/9

16:18-09:25

2 stops26h 37m

Adelaide

Mon 21/9

06:00-15:43

2 stops24h 13m

$3,775

HoustonAdelaide

HOU - ADL

HOUADL

Houston Hobby

Sat 31/10

14:01-11:00

2 stops29h 29m

Adelaide

Wed 4/11

06:25-16:32

2 stops26h 37m

$4,582

Flights are sorted by cheapest return flights first.

Deals found on 25/7

Sorted by cheapest first

Best time to book a flight from Houston to Adelaide

Have a flexible travel schedule? Discover the best time to fly to Adelaide from Houston with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Houston to Adelaide

No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Houston to Adelaide. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Adelaide from Houston?

    For a flight from Houston to Adelaide, you will be flying into Adelaide. Adelaide (ADL) is just 6.6 km from the centre vof the city. Adelaide is the only Adelaide airport and it handles 0 inbound flights from Houston per day. 0 airlines have flights to Adelaide from Houston on a regular basis.

  • How long is the flight from Houston to Adelaide?

    For as low as $2,273, United Airlines can have you in Adelaide from Houston in 22h 30m. Houston and Adelaide are separated by a distance of 14981 km. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from Houston to Adelaide that include hotel bookings?

    Yes. In addition to deals on Houston to Adelaide flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Houston to Adelaide?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to Adelaide.

  • Can I find deals for business class flights from Houston to Adelaide?

    Yes. Cheapflights offers flight deals from Houston to Adelaide by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Adelaide?

Book flights to Adelaide if you plan to visit one of these locations
Glenelg

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Can Cheapflights find flights from Houston to Adelaide with no change fees?

Need flexible booking options for your flight to Adelaide from Houston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Houston to Adelaide become cheaper?

Yes! Start tracking prices for Houston to Adelaide flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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