HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Adelaide

$727+ 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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ADL
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Adelaide with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,013
(Trip.com)

One-way from

$727
(Kiwi.com)

Popular in

November

Cheapest in

February

Average price

$2,040
Provider with most accurate pricing for Chicago (CHI)-Adelaide flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Adelaide flights.
Search Deals
From Illinois to Adelaide
Search Deals
One-way flight from Illinois to Adelaide
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($372 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($98 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 17, 2025.

This FlightHub deal was found by Cheapflights users on 4/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/106:45 pmORD - ADL
2 stops26h 20mFiji Airways
Sat 5/1712:35 pmADL - ORD
2 stops22h 19mFiji Airways
Deal found 4/17$1,281
This StudentUniverse deal was found by Cheapflights users on 4/17. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1612:54 pmORD - ADL
2 stops31h 31mAir New Zealand
Sun 8/2411:55 amADL - ORD
2 stops25h 50mAir New Zealand
Deal found 4/17$1,385
This Mytrip deal was found by Cheapflights users on 4/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/175:51 amORD - ADL
3 stops39h 14mMultiple Airlines
Sat 5/246:25 amADL - ORD
3 stops45h 40mMultiple Airlines
Deal found 4/17$1,445
This Iberia deal was found by Cheapflights users on 4/17. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/46:45 pmORD - ADL
3 stops45h 25mIberia
Tue 5/209:40 pmADL - ORD
2 stops56h 50mIberia
Deal found 4/17$1,715
This Jetabroad deal was found by Cheapflights users on 4/17. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/15:38 pmORD - ADL
2 stops26h 12mQantas Airways
Sun 6/87:00 pmADL - ORD
2 stops43h 05mQantas Airways
Deal found 4/17$1,722
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Tue 6/176:26 pmORD - ADL
2 stops26h 09mUnited Airlines
Wed 6/256:00 amADL - ORD
2 stops33h 29mUnited Airlines
Deal found 4/17$1,875
This Air Canada deal was found by Cheapflights users on 4/17. 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 6/112:00 pmORD - ADL
3 stops33h 20mAir Canada
Sun 6/86:50 pmADL - ORD
2 stops49h 18mAir Canada
Deal found 4/17$2,106
This FlightHub deal was found by Cheapflights users on 4/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/77:20 pmORD - ADL
1 stop30h 00mQatar Airways
Sun 5/189:40 pmADL - ORD
1 stop31h 55mQatar Airways
Deal found 4/17$2,495
This Gurufare deal was found by Cheapflights users on 4/17. 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.
Sun 5/44:00 pmORD - ADL
2 stops33h 05mCathay Pacific
Fri 5/167:00 pmADL - ORD
2 stops33h 55mCathay Pacific
Deal found 4/17$2,600

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 April 17, 2025.
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

Sat 5/31

11:55 am-11:35 am

2 stops33h 10m

Adelaide

Sat 6/7

12:35 pm-12:18 pm

2 stops38h 13m

$1,013

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sat 5/10

6:45 pm-11:35 am

2 stops26h 20m

Adelaide

Sat 5/17

12:35 pm-8:24 pm

2 stops22h 19m

$1,281

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 5/4

6:45 pm-6:40 am

3 stops45h 25m

Adelaide

Wed 5/14

9:40 pm-4:00 pm

2 stops56h 50m

$1,715

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Tue 6/3

9:40 pm-10:55 am

2 stops46h 45m

Adelaide

Sat 6/28

2:10 pm-2:42 pm

2 stops39h 02m

$1,716

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 6/1

5:38 pm-10:20 am

2 stops26h 12m

Adelaide

Sun 6/8

7:00 pm-11:35 pm

2 stops43h 05m

$1,722

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Tue 6/17

6:26 pm-11:05 am

2 stops26h 09m

Adelaide

Wed 6/25

6:00 am-12:59 am

2 stops33h 29m

$1,875

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sat 5/31

3:35 pm-6:10 pm

2 stops36h 05m

Adelaide

Sat 6/7

4:30 pm-3:05 pm

3 stops61h 05m

$2,319

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Wed 5/7

7:20 pm-3:50 pm

1 stop30h 00m

Adelaide

Sun 5/18

9:40 pm-3:05 pm

1 stop31h 55m

$2,495

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 6/1

6:00 am-8:30 am

3 stops60h 00m

$727

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 6/1

3:35 pm-6:10 pm

2 stops36h 05m

$952

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 12 results
1
2

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

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

Find hourly flight availability from Illinois to Adelaide. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

When flying from Illinois to Adelaide, 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 Adelaide by month

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

In terms of precipitation, rainfall in Adelaide ranges from 0.4 - 2.4 inches per month. July is typically the wettest month, when rainfall can reach 2.4 in. January is typically the driest time to visit Adelaide when rainfall is around 0.4 in.

Temperature in Adelaide by month

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

If weather is an important factor for your trip to Adelaide, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Adelaide

Get insights into the airlines that provide service to Adelaide. 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 Adelaide. Reviews last updated April 17, 2025.
Fiji Airways
8.0
Very good
185 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Crew

8.5

Food

7.5

Boarding

8.2

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Fiji Airways
8.0
Very good
185 reviews
Fiji Airways
8.0
Very good
185 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Crew

8.5

Food

7.5

Boarding

8.2

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Emirates
8.0
Very good
3,200 reviews
Fiji Airways
8.0
Very good
185 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Crew

8.5

Food

7.5

Boarding

8.2

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Air New Zealand
8.0
Very good
467 reviews
Fiji Airways
8.0
Very good
185 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Crew

8.5

Food

7.5

Boarding

8.2

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Qantas Airways
7.5
Good
819 reviews
Fiji Airways
8.0
Very good
185 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Crew

8.5

Food

7.5

Boarding

8.2

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Qatar Airways
7.4
Good
3,554 reviews
Fiji Airways
8.0
Very good
185 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Crew

8.5

Food

7.5

Boarding

8.2

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!

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.

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

    One-way options have recently been found by users for as low as $952 on Air Canada. Other airlines that offer cheap prices include Qatar Airways from $1,911 and Emirates from $2,079 one-way.

  • 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.

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

    Currently, August is the cheapest month in which you can book a flight from Illinois to Adelaide (average of $1,214). Flying from Illinois to Adelaide in December is currently the most expensive (average of $2,057). 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

Traveling to a place near Illinois?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Illinois to Adelaide

Discover the top airline 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$987Average$1,326FlexibilityNo cancel feeOn-time74%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.