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$586+ Cheap flights from Illinois to Adelaide (ADL)

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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ADL
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
1 adult, Economy
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Cheap flight deals from Illinois to Adelaide

Keep the following information in mind while searching for Illinois to Adelaide flight deals. Data was last updated January 14, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$992
(Expedia)

One-way from

$586
(Kiwi.com)

Popular in

September

Cheapest in

February

Average price

$1,164
Provider with most accurate pricing for Chicago (CHI)-Adelaide flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Adelaide flights.
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From Illinois to Adelaide
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One-way flight from Illinois to Adelaide
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Highest demand for flights based on searches. 10% potential increase in price ($184 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Illinois to Adelaide

Cheapest flights from Illinois to Adelaide
Explore the most affordable flight options available from Illinois to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 14, 2026.

This Expedia deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/23:35 pm
ORD
-
ADL
2 stops29h 50m
Multiple Airlines
Wed 3/116:10 am
ADL
-
ORD
2 stops29h 20m
Multiple Airlines
Deal found 1/13$992
This Air Canada deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/283:40 pm
ORD
-
ADL
2 stops29h 00m
Air Canada
Tue 8/118:00 pm
ADL
-
ORD
2 stops33h 11m
Air Canada
Deal found 1/12$997
This Expedia deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/22:00 pm
ORD
-
ADL
3 stops31h 25m
Air Canada
Wed 3/116:10 am
ADL
-
ORD
2 stops24h 01m
Air Canada
Deal found 1/13$1,005
This Air Canada deal was found by Cheapflights users on 1/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/283:40 pm
ORD
-
ADL
2 stops29h 00m
Air Canada
Wed 8/128:00 pm
ADL
-
ORD
2 stops33h 11m
Air Canada
Deal found 1/11$1,040
This Priceline deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/273:35 pm
ORD
-
ADL
2 stops38h 25m
Air Canada
Fri 3/66:00 am
ADL
-
ORD
2 stops25h 11m
Air Canada
Deal found 1/12$1,087
This Air Canada deal was found by Cheapflights users on 1/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/273:40 pm
ORD
-
ADL
2 stops29h 00m
Air Canada
Wed 8/128:00 pm
ADL
-
ORD
2 stops33h 11m
Air Canada
Deal found 1/11$1,146
This United Airlines deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:17 pm
ORD
-
ADL
1 stop22h 43m
United Airlines
Wed 3/111:55 pm
ADL
-
ORD
1 stop21h 50m
United Airlines
Deal found 1/13$1,165
This Air Canada deal was found by Cheapflights users on 1/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/293:40 pm
ORD
-
ADL
2 stops29h 00m
Air Canada
Tue 8/118:00 pm
ADL
-
ORD
2 stops33h 11m
Air Canada
Deal found 1/11$1,167
This Gurufare deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/293:40 pm
ORD
-
ADL
2 stops29h 00m
Singapore Airlines
Mon 7/206:55 pm
ADL
-
ORD
2 stops34h 16m
Singapore Airlines
Deal found 1/13$1,191

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois 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 2,558,603 searches. Data last updated January 14, 2026.
Use the filters below to find and compare flights from Illinois to Adelaide that are best for you.

Fly from

Illinois

Fly to

Adelaide

Route

Depart

Return

Price

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 3/2

3:35 pm-1:55 pm

2 stops29h 50m

Adelaide

Wed 3/11

6:10 am-8:00 pm

2 stops29h 20m

$992

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Fri 2/27

3:35 pm-10:30 pm

2 stops38h 25m

Adelaide

Fri 3/6

6:00 am-2:41 pm

2 stops25h 11m

$1,087

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 3/2

6:17 pm-9:30 am

1 stop22h 43m

Adelaide

Wed 3/11

1:55 pm-8:15 pm

1 stop21h 50m

$1,165

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 3/2

10:00 am-1:55 pm

3 stops35h 25m

Adelaide

Wed 3/11

6:00 am-7:45 pm

3 stops29h 15m

$1,307

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 2/16

1:12 pm-1:55 pm

3 stops32h 13m

Adelaide

Thu 2/19

7:55 pm-2:41 pm

2 stops35h 16m

$1,349

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 1/19

6:40 pm-1:40 pm

2 stops26h 30m

Adelaide

Wed 1/28

7:55 pm-2:41 pm

2 stops35h 16m

$1,911

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Fri 2/27

6:50 pm-5:05 pm

1 stop29h 45m

Adelaide

Fri 3/6

6:20 pm-2:30 pm

2 stops36h 40m

$2,072

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 2/15

1:30 pm-6:15 am

2 stops48h 15m

$586

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 2/15

8:20 pm-9:30 am

1 stop44h 40m

$988

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/11

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 round-trip 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 Illinois 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 Illinois 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 Illinois?

    If you book a flight to Adelaide from Illinois, you will be flying to Adelaide, which is the city’s only airport. Adelaide (ADL) is located 4.1 mi from the center of Adelaide.

  • How long is the flight from Illinois to Adelaide?

    Airlines like Air Canada and United Airlines fly from Illinois to Adelaide in about 22h 43m. The time it takes to get you to your destination can typically vary by up to 15h 42m. There are 9903 mi between Illinois and Adelaide. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 vacation 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.

See more FAQs

Traveling to a place near Adelaide?

Book flights to Adelaide if you plan to visit one of these locations
Glenelg

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Top 4 airlines flying from Illinois to Adelaide

Discover the top 4 airlines that operate flights from Illinois to Adelaide. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$982Average$1,097FlexibilityNo cancel feeOn-time74%
Air New ZealandCheapest$1,303Average$1,534FlexibilityNo cancel feeOn-time78%
Fiji AirwaysCheapest$1,351Average$1,438FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$1,673Average$2,028FlexibilityNo cancel feeOn-time69%

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