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Cheap flights from Chicago to Adelaide from $1,345

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — ADL
19 Nov — 26 Nov1
1 adult
1 adult, Economy

Cheap flight deals from Chicago to Adelaide

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) 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 20 October 2025.

Round-trip from

$1,345

Popular in

December

Cheapest in

February

Average price

$2,245
American Airlines
  • American Airlines
  • 3/12-10/12
  • 4 total stops
  • 54h 50m total
  • Chicago to Adelaide
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Highest demand for flights based on searches. 16% potential increase in price ($738 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease ($179 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Find flight deals from Chicago to Adelaide

Enter your travel dates to find the best prices.

Cheapest flights from Chicago to Adelaide
Explore the most affordable flight options available from Chicago to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 October 2025.

Wed 3/1218:17ORD - ADL
2 stops26h 53mAmerican Airlines
Wed 10/1206:25ADL - ORD
2 stops27h 57mAmerican Airlines
Deal found 19/10$1,345
Sat 1/1118:03ORD - ADL
2 stops26h 17mQantas Airways
Tue 10/206:05ADL - ORD
2 stops27h 14mQantas Airways
Deal found 19/10$1,350
Thu 30/1018:03ORD - ADL
2 stops28h 07mQantas Airways
Sat 8/1111:40ADL - ORD
2 stops26h 14mQantas Airways
Deal found 18/10$1,354
Tue 2/1211:40ORD - ADL
2 stops29h 40mQantas Airways
Tue 9/1217:10ADL - ORD
2 stops28h 40mQantas Airways
Deal found 18/10$1,445
Thu 6/1118:03ORD - ADL
2 stops31h 42mQantas Airways
Thu 13/1106:05ADL - ORD
2 stops26h 20mQantas Airways
Deal found 19/10$1,631
Thu 11/1218:17ORD - ADL
2 stops29h 38mQantas Airways
Sat 20/1206:25ADL - ORD
2 stops25h 38mQantas Airways
Deal found 19/10$1,922
Thu 11/1216:10ORD - ADL
1 stop24h 50mUnited Airlines
Sat 20/1214:55ADL - ORD
1 stop24h 49mUnited Airlines
Deal found 19/10$2,402
Tue 2/1208:20ORD - ADL
3 stops35h 25mMultiple Airlines
Tue 9/1208:05ADL - ORD
3 stops38h 25mMultiple Airlines
Deal found 18/10$2,664
Tue 16/1218:17ORD - ADL
2 stops26h 53mQantas Airways
Tue 30/1206:00ADL - ORD
2 stops28h 06mQantas Airways
Deal found 19/10$2,671
Wed 3/1215:40ORD - ADL
2 stops38h 20mMultiple Airlines
Wed 10/1219:55ADL - ORD
3 stops42h 40mMultiple Airlines
Deal found 19/10$2,778

Cheapflights Fare Finder

 
Customise your flight search to find flights from Chicago 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 20 October 2025.
Use the filters below to find and compare flights from Chicago to Adelaide that are best for you.

Fly from

Chicago

Fly to

Adelaide

Route

Depart

Return

Price

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sat 1/11

18:03-11:50

2 stops26h 17m

Adelaide

Tue 10/2

06:05-16:49

2 stops27h 14m

$1,350

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Thu 30/10

18:03-13:40

2 stops28h 07m

Adelaide

Sat 8/11

11:40-21:24

2 stops26h 14m

$1,354

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 1/3

16:45-10:55

2 stops25h 40m

Adelaide

Sat 28/3

07:50-21:07

2 stops28h 47m

$1,363

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Tue 2/12

11:40-09:50

2 stops29h 40m

Adelaide

Tue 9/12

17:10-05:20

2 stops28h 40m

$1,445

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Thu 6/11

18:03-18:15

2 stops31h 42m

Adelaide

Thu 13/11

06:05-15:55

2 stops26h 20m

$1,631

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 1/3

21:05-09:30

2 stops43h 55m

Adelaide

Sat 28/3

13:55-00:59

1 stop26h 34m

$1,951

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Thu 11/12

16:10-09:30

1 stop24h 50m

Adelaide

Sat 20/12

14:55-23:14

1 stop24h 49m

$2,402

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Tue 2/12

08:20-12:15

3 stops35h 25m

Adelaide

Tue 9/12

08:05-06:00

3 stops38h 25m

$2,664

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Tue 16/12

18:17-13:40

2 stops26h 53m

Adelaide

Tue 30/12

06:00-15:33

2 stops26h 03m

$2,671

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Wed 3/12

15:40-22:30

2 stops38h 20m

Adelaide

Wed 10/12

19:55-22:05

3 stops42h 40m

$2,778

Flights are sorted by cheapest return flights first.

Deals found on 17/10

Showing 1-10 of 15 results
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Best time to book a flight from Chicago to Adelaide

Have a flexible travel schedule? Discover the best time to fly to Adelaide from Chicago 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 Chicago to Adelaide

How much does it cost for a return flight from Chicago to Adelaide?

Related info for your journey

Find useful and relevant information for your journey from Chicago 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 Chicago?

    If you book a flight to Adelaide from Chicago, you will be flying to Adelaide, which is the city’s only airport. Adelaide (ADL) is located 6.6 km from the centre of Adelaide. There are 0 flights from Chicago to Adelaide per day from 0 different airlines.

  • How long is the flight from Chicago to Adelaide?

    For as low as $1,363, Qantas Airways can have you in Adelaide from Chicago in 25h 40m. The distance between Chicago and Adelaide is about 15937 km. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Chicago 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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How does Cheapflights help users find flights from Chicago to Adelaide?

Deals for Chicago to Adelaide flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Chicago to Adelaide?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Chicago to Adelaide for you. Better yet — we are completely free to use.

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

Need flexible booking options for your flight to Adelaide from Chicago? 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 Chicago to Adelaide become cheaper?

Of course! You can now track prices for flights from Chicago to Adelaide and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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