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Cheap flights from Chicago to Adelaide from $662

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 21/4. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — ADL
28 Mar — 4 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap 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 26 February 2026.

Mon 20/415:40
ORD
-
ADL
2 stops29h 40m
Multiple Airlines
Mon 27/421:20
ADL
-
ORD
2 stops31h 55m
Multiple Airlines
Deal found 25/2$1,360
Mon 13/415:40
ORD
-
ADL
2 stops29h 40m
Air Canada
Mon 20/421:20
ADL
-
ORD
2 stops37h 10m
Air Canada
Deal found 22/2$1,411
Mon 20/414:00
ORD
-
ADL
3 stops31h 20m
Air Canada
Mon 27/421:20
ADL
-
ORD
2 stops31h 55m
Air Canada
Deal found 25/2$1,423
Mon 20/415:40
ORD
-
ADL
2 stops29h 40m
Multiple Airlines
Sun 26/421:20
ADL
-
ORD
2 stops31h 55m
Multiple Airlines
Deal found 25/2$1,439
Mon 27/415:40
ORD
-
ADL
2 stops29h 05m
Multiple Airlines
Thu 7/517:15
ADL
-
ORD
2 stops36h 00m
Multiple Airlines
Deal found 26/2$1,484
Mon 20/414:00
ORD
-
ADL
3 stops31h 20m
Air Canada
Sun 26/421:20
ADL
-
ORD
2 stops31h 55m
Air Canada
Deal found 25/2$1,514
Sat 14/321:30
ORD
-
ADL
2 stops48h 40m
Qantas Airways
Wed 25/306:05
ADL
-
ORD
2 stops30h 05m
Qantas Airways
Deal found 25/2$1,681

Find 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 26 February 2026.

Round-trip from

$1,360

One-way from

$662

Popular in

September

Cheapest in

February

Average price

$1,483
Singapore Airlines
  • Singapore Airlines
  • 20/4-27/4
  • 4 total stops
  • 61h 35m total
  • Chicago to Adelaide
Search Deals
21/4
  • 21/4
  • 2 total stops
  • 38h 45m total
  • Chicago to Adelaide
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($272 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($53 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 26 February 2026.
Use the filters below to find and compare flights from Chicago to Adelaide that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 13/4

15:40-11:50

2 stops29h 40m

Adelaide

Mon 20/4

21:20-20:00

2 stops37h 10m

$1,411

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sat 14/3

16:35-08:30

1 stop24h 25m

Adelaide

Mon 23/3

14:15-05:07

1 stop30h 22m

$1,701

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sat 14/3

16:08-08:30

2 stops24h 52m

Adelaide

Wed 25/3

14:15-23:59

2 stops25h 14m

$1,708

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 10/8

18:45-11:05

2 stops25h 50m

Adelaide

Wed 19/8

12:00-00:12

3 stops26h 42m

$2,367

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 20/4

19:20-15:50

1 stop30h 00m

Adelaide

Mon 27/4

18:20-15:05

2 stops35h 15m

$2,913

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 27/4

19:20-15:50

1 stop30h 00m

Adelaide

Thu 7/5

18:20-15:05

2 stops35h 15m

$2,913

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 20/4

20:52-11:35

3 stops48h 13m

$735

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Tue 21/4

07:55-11:35

3 stops37h 10m

$764

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Tue 21/4

19:20-15:50

1 stop30h 00m

$2,094

Flights are sorted by cheapest return flights first.

Deals found on 25/2

Sorted by cheapest first

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
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 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 $1,701, Air Canada can have you in Adelaide from Chicago in 24h 25m. 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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Why should you use Cheapflights to find cheap flight tickets from Chicago to Adelaide?

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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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