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$699+ Cheap flights from Adelaide (ADL) to Illinois

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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
ADL — ORD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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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 June 12, 2025.

Round-trip from

$1,451
(BYOjet)

One-way from

$699
(Kiwi.com)

Popular in

September

Cheapest in

April

Average price

$1,406
From Adelaide to Illinois
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One-way flight from Adelaide to Illinois
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Highest demand for flights based on searches. 14% potential increase in price ($226 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 12, 2025.

This BYOjet deal was found by Cheapflights users on 6/12. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:00 pmADL - ORD
2 stops33h 25mAir Canada
Mon 11/102:00 pmORD - ADL
3 stops36h 40mAir Canada
Deal found 6/12$1,451
This SmartFares deal was found by Cheapflights users on 6/11. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/247:00 pmADL - ORD
2 stops33h 55mMultiple Airlines
Thu 7/314:00 pmORD - ADL
2 stops31h 45mMultiple Airlines
Deal found 6/11$1,482
This Gotogate deal was found by Cheapflights users on 6/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2410:05 amADL - ORD
2 stops42h 50mCathay Pacific
Thu 7/314:00 pmORD - ADL
2 stops33h 05mCathay Pacific
Deal found 6/11$1,564
This BYOjet deal was found by Cheapflights users on 6/12. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/111:40 amADL - ORD
2 stops41h 55mQatar Airways
Mon 11/106:55 pmORD - ADL
1 stop29h 40mQatar Airways
Deal found 6/12$2,032
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 6/286:05 amADL - ORD
2 stops37h 43mUnited Airlines
Thu 7/174:50 pmORD - ADL
2 stops27h 35mUnited Airlines
Deal found 6/10$2,430
This oojo deal was found by Cheapflights users on 6/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/269:50 pmADL - ORD
1 stop32h 25mEmirates
Mon 6/307:45 pmORD - ADL
2 stops57h 50mEmirates
Deal found 6/10$2,692

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated June 12, 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

Wed 10/1

8:00 pm-2:55 pm

2 stops33h 25m

Chicago O'Hare Intl

Mon 11/10

2:00 pm-7:10 pm

3 stops36h 40m

$1,451

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Thu 7/24

7:00 pm-2:25 pm

2 stops33h 55m

Chicago O'Hare Intl

Thu 7/31

4:00 pm-2:15 pm

2 stops31h 45m

$1,482

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Thu 7/24

10:05 am-2:25 pm

2 stops42h 50m

Chicago O'Hare Intl

Thu 7/31

4:00 pm-3:35 pm

2 stops33h 05m

$1,564

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Wed 10/1

11:40 am-3:05 pm

2 stops41h 55m

Chicago O'Hare Intl

Mon 11/10

6:55 pm-5:05 pm

1 stop29h 40m

$2,032

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Sat 6/28

6:05 am-5:18 am

2 stops37h 43m

Chicago O'Hare Intl

Thu 7/17

4:50 pm-10:55 am

2 stops27h 35m

$2,430

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Thu 6/26

9:50 pm-3:45 pm

1 stop32h 25m

Chicago O'Hare Intl

Mon 6/30

7:45 pm-8:05 pm

2 stops57h 50m

$2,692

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Tue 7/22

5:15 pm-11:39 pm

3 stops44h 54m

$699

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Wed 6/18

6:05 am-5:45 am

2 stops38h 10m

$1,284

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Tue 7/22

9:40 pm-3:05 pm

1 stop31h 55m

$1,385

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Wed 6/18

9:50 pm-3:45 pm

1 stop32h 25m

$1,532

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 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 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 June 12, 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 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 June 12, 2025.
Emirates
8.1
Very good
3,264 reviews

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 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
8.1
Very good
3,264 reviews
Emirates
8.1
Very good
3,264 reviews

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 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
7.6
Good
892 reviews
Emirates
8.1
Very good
3,264 reviews

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 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
3,584 reviews
Emirates
8.1
Very good
3,264 reviews

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 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.
United Airlines
7.4
Good
8,790 reviews
Emirates
8.1
Very good
3,264 reviews

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 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
7.1
Good
9,531 reviews
Emirates
8.1
Very good
3,264 reviews

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 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?

    Located just 4.1 mi from the city center, Adelaide (ADL) is the airport most travelers will use when flying to Illinois from Adelaide.

  • What are the cheapest airlines to fly from Adelaide to Illinois one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $1,284. Users have also found prices from $1,385 and $1,532 on Qatar Airways and Emirates, respectively.

  • 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 vacation 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.

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

    Currently, August is the cheapest month in which you can book a flight from Adelaide to Illinois (average of $245). Flying from Adelaide to Illinois in March is currently the most expensive (average of $321). 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.

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