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Cheap flights from Illinois to Adelaide from $1,956

ORD — ADL
24 Oct — 31 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Adelaide

Enter your travel dates to find the best prices.

Cheapest flights from Illinois to Adelaide

Tue 3/1115:30 -
2 stops30h 05m
Tue 10/1106:10 -
2 stops30h 19m
Deal found 19/9$1,956
Mon 26/1015:30 -
2 stops35h 10m
Tue 3/1106:10 -
2 stops30h 19m
Deal found 21/9$1,960
Wed 28/1015:30 -
2 stops39h 30m
Wed 4/1106:10 -
2 stops30h 19m
Deal found 21/9$1,962
Thu 5/1121:35 -
2 stops44h 50m
Thu 12/1112:05 -
2 stops25h 00m
Deal found 20/9$1,970
Tue 27/1013:57 -
3 stops36h 43m
Wed 4/1106:10 -
2 stops30h 19m
Deal found 21/9$1,972
Wed 4/1115:30 -
2 stops30h 05m
Wed 11/1106:00 -
3 stops31h 18m
Deal found 20/9$1,973
Tue 27/1015:30 -
2 stops30h 55m
Sun 1/1106:00 -
2 stops30h 28m
Deal found 21/9$2,006
Wed 4/1118:50 -
2 stops46h 40m
Wed 11/1122:00 -
1 stop33h 00m
Deal found 20/9$2,011
Tue 27/1015:30 -
2 stops30h 55m
Thu 5/1106:00 -
2 stops30h 28m
Deal found 21/9$2,058
Fri 6/1114:22 -
2 stops28h 03m
Fri 13/1112:05 -
2 stops26h 10m
Deal found 22/9$2,067
Fri 6/1115:30 -
2 stops38h 30m
Fri 13/1106:10 -
2 stops30h 19m
Deal found 22/9$2,068

Find flight deals from Illinois to Adelaide

Round-trip from

$1,938

Popular in

December

Cheapest in

February

Average price

$2,399
Qatar Airways
  • Qatar Airways
  • 8/3-17/3
  • 3 total stops
  • 64h 55m total
  • Illinois to Adelaide
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($461 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($110 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Illinois to Adelaide that are best for you.

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Depart

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Cheapest return flight
Fastest return journey

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Wed 4/11

15:30-14:05

2 stops30h 05m

Adelaide

Wed 11/11

06:10-14:37

2 stops24h 57m

$1,956

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Tue 3/11

12:50-18:10

3 stops36h 50m

Adelaide

Tue 10/11

06:10-14:37

2 stops24h 57m

$1,972

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Wed 17/2

12:50-13:55

3 stops32h 35m

Adelaide

Sun 21/2

06:10-14:32

2 stops24h 52m

$1,972

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Sat 6/3

15:40-21:00

2 stops36h 50m

Adelaide

Sun 14/3

06:00-18:58

3 stops29h 28m

$1,980

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Wed 4/11

18:50-10:00

2 stops46h 40m

Adelaide

Wed 11/11

22:00-14:30

1 stop33h 00m

$2,011

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Fri 22/1

20:17-09:30

2 stops44h 43m

Adelaide

Sun 31/1

19:55-12:49

2 stops33h 24m

$2,076

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Fri 22/1

18:50-17:05

1 stop29h 45m

Adelaide

Sun 31/1

17:00-14:30

2 stops38h 00m

$2,258

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Wed 17/2

18:50-20:40

2 stops33h 20m

Adelaide

Sun 21/2

22:00-14:30

1 stop33h 00m

$2,361

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Fri 22/1

15:35-14:05

2 stops30h 00m

Adelaide

Sun 31/1

06:00-19:58

3 stops30h 28m

$2,696

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Tue 3/11

18:50-15:55

1 stop28h 35m

Adelaide

Tue 10/11

22:00-14:30

1 stop33h 00m

$2,823

Flights are sorted by cheapest return flights first.

Deals found on 20/9

Showing 1-10 of 11 resultsSorted by cheapest first
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Best time to book a flight from Illinois to Adelaide

Have a flexible travel schedule? Discover the best time to fly to Adelaide from Illinois with our price prediction graph.
Estimated return price

Cheapflights Insights

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

What is the cheapest month to book a flight from Illinois to Adelaide?

Currently, June is the cheapest month in which you can book a flight from Illinois to Adelaide (average of $1,267). Flying from Illinois to Adelaide in January is currently the most expensive (average of $5,556). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Airfare is below average for this route at the moment.
Illinois to Adelaide flights typically cost between $2,026 and $2,335 in March.
The cheapest return price found within the last 5 days was $1,938 on Qatar Airways (8 Mar–17 Mar).

Related info for your journey

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

    Adelaide (ADL) is the airport you will fly into if you book a flight from Illinois to Adelaide. It is only a 6.6 km journey from Adelaide (ADL) to Adelaide’s city centre.

  • How long is the flight from Illinois to Adelaide?

    A quick flight from Illinois to Adelaide can take about 36h 50m. Air Canada provides one of the quickest options available for as low as $1,972. Illinois and Adelaide are separated by a distance of 15937 km.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois 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.

  • What is the cheapest month to book a flight from Illinois to Adelaide?

    Currently, June is the cheapest month in which you can book a flight from Illinois to Adelaide (average of $1,267). Flying from Illinois to Adelaide in January is currently the most expensive (average of $5,556). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Adelaide?

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Glenelg

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How does Cheapflights help users find flights from Illinois to Adelaide?

Deals for Illinois 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 Illinois to Adelaide?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Adelaide from Illinois.

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

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

Yes! Start tracking prices for Illinois 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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