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Cheap flights from Adelaide to Illinois from $1,085

ADL — ORD
4 Dec — 11 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Adelaide to Illinois

Enter your travel dates to find the best prices.

Cheapest flights from Adelaide to Illinois

Thu 5/1106:00 -
2 stops33h 00m
Mon 9/1115:25 -
2 stops32h 40m
Deal found 2/11$1,809
Thu 5/1106:05 -
2 stops46h 55m
Mon 9/1114:10 -
2 stops48h 25m
Deal found 30/10$2,239
Sun 29/1119:45 -
2 stops52h 15m
Sun 6/1210:25 -
2 stops30h 05m
Deal found 1/11$2,761
Sun 29/1119:45 -
2 stops57h 15m
Sun 6/1214:10 -
1 stop27h 50m
Deal found 1/11$3,029
Tue 22/1219:55 -
2 stops35h 19m
Wed 13/116:55 -
2 stops28h 45m
Deal found 1/11$3,265
Sun 20/1219:55 -
2 stops42h 08m
Wed 20/116:05 -
2 stops26h 20m
Deal found 30/10$3,266
Sun 29/1121:30 -
2 stops35h 55m
Sun 6/1218:30 -
3 stops33h 50m
Deal found 1/11$3,278

Find flight deals from Adelaide to Illinois

Round-trip from

$1,612

One-way from

$1,085
Qantas Airways
  • Qantas Airways
  • 25/4-7/5
  • 4 total stops
  • 70h 55m total
  • Adelaide to Illinois
Search Deals
Cathay Pacific
  • Cathay Pacific
  • 28/4-31/12
  • 2 total stops
  • 42h 10m total
  • Adelaide to Illinois
Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

AdelaideChicago

ADL Adelaide - ORD Chicago O'Hare Intl

ADLORD

Adelaide

Wed 28/4

10:15-13:55

2 stops42h 10m

Chicago O'Hare Intl

Wed 31/12

00:00-15:30

Nonstop0h 00m

$1,085

AdelaideChicago

ADL Adelaide - ORD Chicago O'Hare Intl

ADLORD

Adelaide

Wed 28/4

07:10-09:40

3 stops41h 00m

Chicago O'Hare Intl

Wed 31/12

00:00-15:30

Nonstop0h 00m

$1,250

AdelaideChicago

ADL Adelaide - ORD Chicago O'Hare Intl

ADLORD

Adelaide

Sun 31/1

12:00-12:30

1 stop41h 00m

Chicago O'Hare Intl

Wed 3/2

14:10-10:30

1 stop27h 50m

$2,411

AdelaideChicago

ADL Adelaide - ORD Chicago O'Hare Intl

ADLORD

Adelaide

Wed 28/4

22:00-15:45

1 stop32h 15m

Chicago O'Hare Intl

Wed 31/12

00:00-15:30

Nonstop0h 00m

$2,579

AdelaideChicago

ADL Adelaide - ORD Chicago O'Hare Intl

ADLORD

Adelaide

Sun 29/11

19:45-07:30

2 stops52h 15m

Chicago O'Hare Intl

Sun 6/12

10:25-09:00

2 stops30h 05m

$2,761
Fastest return journey

AdelaideChicago

ADL Adelaide - ORD Chicago O'Hare Intl

ADLORD

Adelaide

Mon 4/1

14:55-22:29

1 stop24h 04m

Chicago O'Hare Intl

Wed 31/12

00:00-15:30

Nonstop0h 00m

$2,946

AdelaideChicago

ADL Adelaide - ORD Chicago O'Hare Intl

ADLORD

Adelaide

Sun 31/1

06:00-05:02

2 stops39h 32m

Chicago O'Hare Intl

Wed 3/2

15:52-11:00

2 stops26h 38m

$3,055

AdelaideChicago

ADL Adelaide - ORD Chicago O'Hare Intl

ADLORD

Adelaide

Wed 16/12

19:10-07:30

2 stops52h 50m

Chicago O'Hare Intl

Sun 3/1

13:30-09:25

2 stops51h 25m

$3,412

AdelaideChicago

ADL Adelaide - ORD Chicago O'Hare Intl

ADLORD

Adelaide

Sun 20/12

19:55-13:03

2 stops33h 38m

Chicago O'Hare Intl

Mon 11/1

15:43-09:30

2 stops25h 17m

$3,419

AdelaideChicago

ADL Adelaide - ORD Chicago O'Hare Intl

ADLORD

Adelaide

Fri 18/12

14:15-12:30

2 stops62h 45m

Chicago O'Hare Intl

Fri 25/12

14:10-10:30

1 stop27h 50m

$3,437

Flights are sorted by cheapest return flights first.

Deals found on 3/11

Showing 1-10 of 13 resultsSorted by cheapest first
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Best time to book a flight from Adelaide to Illinois

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

Cheapflights Insights

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

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

Reviews of airlines servicing Illinois

Get a feel of what it's like to fly with Qantas Airways from Adelaide to Illinois by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
1,122 reviews
Check prices

Entertainment

7.2

Comfort

7.5

Overall

7.5

Crew

8.1

Boarding

7.7

Food

7.0

Reviews

1 / 20
10.0
Excellent

Tania,May 2026

SYD - DFW

The trip was great and the flight attendants were lovely. It was my honeymoon and ai thought I lost my gold brecelet. They searched until they found it and gave us a bottle of champaign to celebrate our honeymoon. They were lovely!
Qantas Airways
7.5
Good
1,122 reviews
Qantas Airways
7.5
Good
1,122 reviews
Check prices

Entertainment

7.2

Comfort

7.5

Overall

7.5

Crew

8.1

Boarding

7.7

Food

7.0

Reviews

1 / 20
10.0
Excellent

Tania,May 2026

SYD - DFW

The trip was great and the flight attendants were lovely. It was my honeymoon and ai thought I lost my gold brecelet. They searched until they found it and gave us a bottle of champaign to celebrate our honeymoon. They were lovely!

Related info for your journey

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

    If you book a flight to Illinois from Adelaide, you will be flying from Adelaide, which is the city’s only airport. Adelaide (ADL) is located 6.6 km from the centre of Adelaide.

  • How long is the flight from Adelaide to Illinois?

    For as low as $3,055, Cathay Pacific can have you in Illinois from Adelaide in 39h 32m. There are 15937 km between Adelaide and Illinois. Both multi-stop and direct flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Adelaide to Illinois 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

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Adelaide to Illinois

AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,929Average$2,427FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights

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

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

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Not ready to book yet? You can track prices for flights from Adelaide to Illinois on Cheapflights with our Price Alert feature and get notified when better prices are available.

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