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$1,146+ Cheap flights from Adelaide (ADL) to Illinois

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
ADL — ORD
févr. 25 — mars 41
mar. 2/25
mar. 3/4
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 février 20, 2025.

Round-trip from

$1,146
(Qantas Airways)

Popular in

September

Cheapest in

April

Average price

$996
From Adelaide to Illinois
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($209 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 février 20, 2025.

This Qantas Airways deal was found by Cheapflights users on 2/20. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 4/36:00 amADL - ORD
2 stops25h 25mQantas Airways
jeu. 4/107:20 pmORD - ADL
2 stops24h 30mQantas Airways
Deal found 2/20$1,146
This BYOjet deal was found by Cheapflights users on 2/19. 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.
jeu. 3/66:00 amADL - ORD
2 stops25h 09mAir Canada
lun. 3/1011:04 amORD - ADL
3 stops35h 21mAir Canada
Deal found 2/19$1,206
This Qantas Airways deal was found by Cheapflights users on 2/20. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 6/610:05 amADL - ORD
3 stops28h 41mMultiple Airlines
mer. 9/245:05 pmORD - ADL
2 stops26h 45mMultiple Airlines
Deal found 2/20$1,385
This United Airlines deal was found by Cheapflights users on 2/20. 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.
jeu. 4/246:05 amADL - ORD
2 stops37h 37mUnited Airlines
mer. 4/303:50 pmORD - ADL
2 stops28h 35mUnited Airlines
Deal found 2/20$1,398
This BYOjet deal was found by Cheapflights users on 2/19. 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.
jeu. 3/610:00 pmADL - ORD
1 stop33h 00mQatar Airways
lun. 3/104:27 pmORD - ADL
2 stops33h 08mQatar Airways
Deal found 2/19$1,699

Find flights from Adelaide to Illinois within your budget

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 février 20, 2025.

Fly from

Adelaide

Fly to

Illinois

Route

Depart

Return

Price

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

jeu. 4/3

6:00 am-3:55 pm

2 stops25h 25m

Chicago O'Hare Intl

jeu. 4/10

7:20 pm-10:20 am

2 stops24h 30m

$1,146

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

jeu. 3/6

6:00 am-2:39 pm

2 stops25h 09m

Chicago O'Hare Intl

lun. 3/10

11:04 am-1:55 pm

3 stops35h 21m

$1,206

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

ven. 6/6

10:05 am-12:16 am

3 stops28h 41m

Chicago O'Hare Intl

mer. 9/24

5:05 pm-10:20 am

2 stops26h 45m

$1,385

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

jeu. 4/24

6:05 am-5:12 am

2 stops37h 37m

Chicago O'Hare Intl

mer. 4/30

3:50 pm-10:55 am

2 stops28h 35m

$1,398

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

jeu. 3/6

10:00 pm-2:30 pm

1 stop33h 00m

Chicago O'Hare Intl

lun. 3/10

4:27 pm-5:05 pm

2 stops33h 08m

$1,699

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

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.

Travel insights for flights from Adelaide to Illinois

Get recent, data-driven insights about flights from Adelaide to Illinois including ideal travel times, pricing trends, and more.

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.

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 février 20, 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 février 20, 2025.
Qatar Airways
7.4
Good
3,613 reviews

Crew

8.0

Overall

7.4

Boarding

7.6

Entertainment

7.4

Food

7.3

Comfort

7.4

Reviews

1 / 20

6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.

Qatar Airways
7.4
Good
3,613 reviews
Qatar Airways
7.4
Good
3,613 reviews

Crew

8.0

Overall

7.4

Boarding

7.6

Entertainment

7.4

Food

7.3

Comfort

7.4

Reviews

1 / 20

6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.

Qantas Airways
7.4
Good
815 reviews
Qatar Airways
7.4
Good
3,613 reviews

Crew

8.0

Overall

7.4

Boarding

7.6

Entertainment

7.4

Food

7.3

Comfort

7.4

Reviews

1 / 20

6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.

United Airlines
7.4
Good
8,765 reviews
Qatar Airways
7.4
Good
3,613 reviews

Crew

8.0

Overall

7.4

Boarding

7.6

Entertainment

7.4

Food

7.3

Comfort

7.4

Reviews

1 / 20

6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.

Air Canada
7.0
Good
8,748 reviews
Qatar Airways
7.4
Good
3,613 reviews

Crew

8.0

Overall

7.4

Boarding

7.6

Entertainment

7.4

Food

7.3

Comfort

7.4

Reviews

1 / 20

6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.

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.

  • 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.

See more FAQs

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