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Cheap flights from Adelaide to Illinois from $1,751

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
ADL — ORD
2 Apr — 9 Apr1
1 adult

Cheap flight deals from Adelaide to Illinois

Keep the following information in mind while searching for Adelaide to Illinois flight deals. Data was last updated 28 March 2025.

Round-trip from

$1,751

Popular in

September

Cheapest in

April

Average price

$2,034
10/5-17/5
  • 10/5-17/5
  • 6 total stops
  • 71h 51m total
  • Adelaide to Illinois
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($584 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($105 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from Adelaide to Illinois

Cheapest flights from Adelaide to Illinois
Explore the most affordable flight options available from Adelaide to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 March 2025.

Sat 10/512:35ADL - ORD
3 stops32h 37mMultiple Airlines
Sat 17/505:51ORD - ADL
3 stops39h 14mMultiple Airlines
Deal found 28/3$1,751
Fri 9/506:00ADL - ORD
2 stops32h 29mQantas Airways
Fri 16/513:33ORD - ADL
2 stops32h 02mQantas Airways
Deal found 26/3$2,055
Sun 11/520:00ADL - ORD
3 stops35h 40mAir Canada
Sun 18/513:00ORD - ADL
3 stops32h 20mAir Canada
Deal found 26/3$2,759
Sat 28/606:00ADL - ORD
2 stops46h 55mCathay Pacific
Thu 17/716:00ORD - ADL
2 stops36h 05mCathay Pacific
Deal found 28/3$3,067
Sun 11/521:40ADL - ORD
1 stop31h 55mQatar Airways
Sun 18/506:00ORD - ADL
2 stops43h 20mQatar Airways
Deal found 27/3$3,127
Fri 9/521:50ADL - ORD
1 stop32h 25mEmirates
Fri 16/520:35ORD - ADL
1 stop33h 00mEmirates
Deal found 26/3$3,550

Cheapflights Fare Finder

Customise your flight search to find flights from Adelaide to Illinois 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 28 March 2025.
Use the filters below to find and compare flights from Adelaide to Illinois that are best for you.

Fly from

Adelaide

Fly to

Illinois

Route

Depart

Return

Price

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Sat 10/5

12:35-06:42

3 stops32h 37m

Chicago O'Hare Intl

Sat 17/5

05:51-11:35

3 stops39h 14m

$1,751

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Fri 9/5

06:00-23:59

2 stops32h 29m

Chicago O'Hare Intl

Fri 16/5

13:33-12:05

2 stops32h 02m

$2,055

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Sun 11/5

20:00-17:10

3 stops35h 40m

Chicago O'Hare Intl

Sun 18/5

13:00-11:50

3 stops32h 20m

$2,759

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Sat 28/6

06:00-14:25

2 stops46h 55m

Chicago O'Hare Intl

Thu 17/7

16:00-18:35

2 stops36h 05m

$3,067

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Sun 11/5

21:40-15:05

1 stop31h 55m

Chicago O'Hare Intl

Sun 18/5

06:00-15:50

2 stops43h 20m

$3,127

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Fri 9/5

21:50-15:45

1 stop32h 25m

Chicago O'Hare Intl

Fri 16/5

20:35-20:05

1 stop33h 00m

$3,550

Flights are sorted by cheapest return flights first.

Deals found on 28/3

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
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 Adelaide to Illinois

What is the cheapest time of day to fly from ADL to IL?

Find hourly flight availability from Adelaide to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 March 2025.

When flying from Adelaide to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated 28 March 2025.
Emirates
8.0
Very Good
3,190 reviews
Check prices

Entertainment

8.2

Crew

8.3

Food

7.8

Comfort

8.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,June 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Emirates
8.0
Very Good
3,190 reviews
Emirates
8.0
Very Good
3,190 reviews
Check prices

Entertainment

8.2

Crew

8.3

Food

7.8

Comfort

8.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,June 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Qantas Airways
7.5
Good
811 reviews
Emirates
8.0
Very Good
3,190 reviews
Check prices

Entertainment

8.2

Crew

8.3

Food

7.8

Comfort

8.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,June 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Cathay Pacific
7.5
Good
837 reviews
Emirates
8.0
Very Good
3,190 reviews
Check prices

Entertainment

8.2

Crew

8.3

Food

7.8

Comfort

8.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,June 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Qatar Airways
7.4
Good
3,538 reviews
Emirates
8.0
Very Good
3,190 reviews
Check prices

Entertainment

8.2

Crew

8.3

Food

7.8

Comfort

8.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,June 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Air Canada
7.0
Good
8,990 reviews
Emirates
8.0
Very Good
3,190 reviews
Check prices

Entertainment

8.2

Crew

8.3

Food

7.8

Comfort

8.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,June 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

Related info for your journey

Find useful and relevant information for your journey from Adelaide to Illinois. 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 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.

  • 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

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Alternative routes for Adelaide to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Adelaide to Illinois

Discover the top airline that operate flights from Adelaide to Illinois. 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 647,157 searches. Data last updated 28 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,241Average$1,675FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights

Fly with Cheapflights

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

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Why should you use Cheapflights to find cheap flight tickets from Adelaide to Illinois?

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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.

Can Cheapflights notify me if prices for flights from Adelaide to Illinois become cheaper?

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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