Find flights
When to book
Airlines
FAQs

Cheap flights from Illinois to Adelaide from $836

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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ADL
26 Feb — 5 Mar1
1 adult

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 21 February 2025.

Round-trip from

$1,616

One-way from

$836

Popular in

December

Cheapest in

February

Average price

$1,604
Qantas Airways
  • Qantas Airways
  • 19/3-26/3
  • 4 total stops
  • 56h 22m total
  • Illinois to Adelaide
Search Deals
Qantas Airways
  • Qantas Airways
  • 6/4
  • 2 total stops
  • 25h 05m total
  • Illinois to Adelaide
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($306 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($204 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 21 February 2025.

Sun 23/215:19ORD - ADL
2 stops25h 01mQantas Airways
Sun 9/306:00ADL - ORD
2 stops33h 48mQantas Airways
Deal found 21/2$1,616
Sun 6/408:25ORD - ADL
2 stops41h 45mMultiple Airlines
Sun 13/419:40ADL - ORD
2 stops34h 46mMultiple Airlines
Deal found 20/2$1,776
Wed 2/710:00ORD - ADL
3 stops35h 20mAir Canada
Sun 27/720:00ADL - ORD
2 stops33h 19mAir Canada
Deal found 20/2$2,400
Mon 7/416:09ORD - ADL
2 stops28h 16mAir New Zealand
Mon 14/411:55ADL - ORD
2 stops26h 16mAir New Zealand
Deal found 20/2$3,032
Fri 21/312:45ORD - ADL
2 stops31h 35mUnited Airlines
Sat 29/306:00ADL - ORD
2 stops33h 01mUnited Airlines
Deal found 21/2$3,313
Sun 23/219:05ORD - ADL
1 stop29h 30mQatar Airways
Sun 9/318:20ADL - ORD
2 stops36h 40mQatar Airways
Deal found 21/2$3,567
Sat 22/317:45ORD - ADL
3 stops45h 20mIberia
Sat 5/412:40ADL - ORD
3 stops40h 20mIberia
Deal found 20/2$3,796
Sat 5/420:35ORD - ADL
1 stop33h 00mEmirates
Sat 12/421:50ADL - ORD
1 stop32h 25mEmirates
Deal found 20/2$4,277
Mon 7/419:20ORD - ADL
1 stop30h 00mJetBlue
Mon 14/421:40ADL - ORD
1 stop31h 55mJetBlue
Deal found 21/2$4,294

Find flights from Illinois to Adelaide within your budget

Customise 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 647,157 searches. Data last updated 21 February 2025.

Fly from

Illinois

Fly to

Adelaide

Route

Depart

Return

Price

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Wed 19/3

15:16-13:20

2 stops30h 34m

Adelaide

Wed 26/3

07:05-17:23

2 stops25h 48m

$1,616

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 6/4

08:25-16:40

2 stops41h 45m

Adelaide

Sun 13/4

19:40-15:56

2 stops34h 46m

$1,776

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Wed 2/7

10:00-11:50

3 stops35h 20m

Adelaide

Sun 27/7

20:00-14:49

2 stops33h 19m

$2,400

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 7/4

16:09-10:55

2 stops28h 16m

Adelaide

Mon 14/4

11:55-23:41

2 stops26h 16m

$3,032

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Fri 21/3

14:30-11:50

2 stops29h 50m

Adelaide

Sat 29/3

06:00-20:25

2 stops29h 55m

$3,313

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Wed 19/3

19:50-17:05

1 stop29h 45m

Adelaide

Wed 26/3

18:20-15:30

2 stops36h 40m

$3,670

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sat 22/3

17:45-06:35

3 stops45h 20m

Adelaide

Sat 5/4

12:40-13:30

3 stops40h 20m

$3,796

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sat 5/4

20:35-20:05

1 stop33h 00m

Adelaide

Sat 12/4

21:50-15:45

1 stop32h 25m

$4,277

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Fri 4/4

19:20-16:50

1 stop30h 00m

Adelaide

Fri 11/4

21:40-15:05

1 stop31h 55m

$4,407

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 6/4

18:45-10:20

2 stops25h 05m

$836

Flights are sorted by cheapest return flights first.

Deals found on 20/2

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 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.

Travel insights for flights from Illinois to Adelaide

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

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 10.0 - 60.0 inches per month. July is typically the wettest month, when rainfall can reach 60.0 mm. January is typically the driest time to visit Adelaide when rainfall is around 10.0 mm.

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 21.0 C. Travellers hoping to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 11.0 C).

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 21 February 2025.
Emirates
8.1
Very Good
3,276 reviews
Check prices

Entertainment

8.2

Boarding

8.1

Overall

8.1

Comfort

8.0

Food

7.9

Crew

8.3

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Emirates
8.1
Very Good
3,276 reviews
Emirates
8.1
Very Good
3,276 reviews
Check prices

Entertainment

8.2

Boarding

8.1

Overall

8.1

Comfort

8.0

Food

7.9

Crew

8.3

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Air New Zealand
7.9
Good
460 reviews
Emirates
8.1
Very Good
3,276 reviews
Check prices

Entertainment

8.2

Boarding

8.1

Overall

8.1

Comfort

8.0

Food

7.9

Crew

8.3

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Qatar Airways
7.4
Good
3,609 reviews
Emirates
8.1
Very Good
3,276 reviews
Check prices

Entertainment

8.2

Boarding

8.1

Overall

8.1

Comfort

8.0

Food

7.9

Crew

8.3

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

JetBlue
7.4
Good
3,069 reviews
Emirates
8.1
Very Good
3,276 reviews
Check prices

Entertainment

8.2

Boarding

8.1

Overall

8.1

Comfort

8.0

Food

7.9

Crew

8.3

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Qantas Airways
7.4
Good
813 reviews
Emirates
8.1
Very Good
3,276 reviews
Check prices

Entertainment

8.2

Boarding

8.1

Overall

8.1

Comfort

8.0

Food

7.9

Crew

8.3

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

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?

    Adelaide (ADL) is the airport you will fly into if you book a flight from Illinois to Adelaide. It is only a 6.6 km journey from Adelaide (ADL) to Adelaide’s city centre.

  • 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 $836 on Qantas Airways. Other airlines that offer cheap prices include Air Canada from $1,591 and Qatar Airways from $2,424 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 holiday 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, June is the cheapest month in which you can book a flight from Illinois to Adelaide (average of $168). Flying from Illinois to Adelaide in October is currently the most expensive (average of $241). 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

Travelling to a place near Illinois?

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

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.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Deals for Illinois to Adelaide flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Adelaide from Illinois.

Can Cheapflights find flights from Illinois to Adelaide with no change fees?

Need flexible booking options for your flight to Adelaide from Illinois? 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 Illinois to Adelaide become cheaper?

Yes! Start tracking prices for Illinois to Adelaide flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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.