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Cheap flights from Chicago to Adelaide from $1,348

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/12. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — ADL
1 Jan — 8 Jan1
1 adult
1 adult, Economy, 0 bags

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 2 December 2025.

Round-trip from

$1,605

One-way from

$1,348

Popular in

December

Cheapest in

February

Average price

$3,509
1/3-31/3
  • 1/3-31/3
  • 4 total stops
  • 64h 08m total
  • Chicago to Adelaide
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25/12
  • 25/12
  • 3 total stops
  • 36h 25m total
  • Chicago to Adelaide
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($404 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease ($172 potential savings vs. average return price).
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Average for round-trip flights in December 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 2 December 2025.

Fri 5/1213:15ORD - ADL
2 stops27h 40mAmerican Airlines
Wed 10/1207:50ADL - ORD
2 stops28h 15mAmerican Airlines
Deal found 1/12$2,287
Mon 29/1208:45ORD - ADL
2 stops32h 15mUnited Airlines
Mon 5/114:55ADL - ORD
2 stops24h 34mUnited Airlines
Deal found 30/11$2,851
Fri 5/1220:30ORD - ADL
3 stops53h 10mAir Canada
Wed 10/1219:55ADL - ORD
2 stops59h 16mAir Canada
Deal found 1/12$2,987
Fri 5/1214:35ORD - ADL
1 stop27h 25mCathay Pacific
Wed 10/1212:00ADL - ORD
2 stops41h 25mCathay Pacific
Deal found 1/12$3,109
Tue 16/1218:17ORD - ADL
2 stops26h 53mMultiple Airlines
Tue 30/1207:05ADL - ORD
2 stops24h 58mMultiple Airlines
Deal found 1/12$3,475
Fri 5/1218:17ORD - ADL
3 stops32h 03mMultiple Airlines
Wed 10/1211:55ADL - ORD
3 stops52h 34mMultiple Airlines
Deal found 1/12$3,988
Mon 29/1214:50ORD - ADL
2 stops27h 55mQantas Airways
Mon 5/116:10ADL - ORD
2 stops24h 00mQantas Airways
Deal found 30/11$4,442
Mon 29/1207:30ORD - ADL
3 stops34h 55mMultiple Airlines
Mon 5/120:25ADL - ORD
3 stops33h 50mMultiple Airlines
Deal found 30/11$5,018

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 2 December 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

Fri 27/2

15:35-16:20

2 stops32h 15m

Adelaide

Tue 3/3

06:10-16:38

2 stops26h 58m

$1,727

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 25/5

15:40-11:10

2 stops29h 00m

Adelaide

Mon 15/6

20:00-14:49

2 stops33h 19m

$1,773

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Wed 27/5

17:52-13:35

2 stops29h 13m

Adelaide

Fri 19/6

20:55-19:33

2 stops37h 08m

$1,846

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 1/3

14:00-18:15

3 stops35h 45m

Adelaide

Tue 31/3

18:55-14:43

2 stops35h 18m

$1,895

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 1/3

20:20-09:30

1 stop44h 40m

Adelaide

Tue 31/3

06:10-21:38

2 stops30h 58m

$2,173

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Tue 26/5

12:00-11:50

3 stops33h 20m

Adelaide

Tue 16/6

20:00-14:49

2 stops33h 19m

$2,239

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Fri 9/1

18:40-13:40

2 stops26h 30m

Adelaide

Sat 24/1

09:00-17:09

2 stops24h 39m

$2,843

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Thu 25/12

10:53-09:30

1 stop30h 07m

$1,722

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Tue 16/12

18:17-13:40

2 stops26h 53m

$2,452

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Fri 19/12

21:40-09:30

2 stops43h 20m

$2,521

Flights are sorted by cheapest return flights first.

Deals found on 1/12

Showing 1-10 of 11 results
1
2

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 $1,846, Air Canada can have you in Adelaide from Chicago in 29h 13m. 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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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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