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Cheap flights from Illinois to Adelaide from $1,141

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ADL
23 4월 — 30 4월1
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 18 4월 2025.

Round-trip from

$2,011

One-way from

$1,141

Popular in

November

Cheapest in

February

Average price

$3,203
Fiji Airways
  • Fiji Airways
  • 10/5-17/5
  • 4 total stops
  • 48h 39m total
  • Illinois to Adelaide
Search Deals
1/6
  • 1/6
  • 3 total stops
  • 60h 00m total
  • Illinois to Adelaide
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($917 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($243 potential savings vs. average return 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 18 4월 2025.

토 10/518:45ORD - ADL
2 stops26h 20mFiji Airways
토 17/512:35ADL - ORD
2 stops22h 19mFiji Airways
Deal found 17/4$2,011
토 16/812:54ORD - ADL
2 stops31h 31mAir New Zealand
일 24/811:55ADL - ORD
2 stops25h 50mAir New Zealand
Deal found 17/4$2,174
토 17/505:51ORD - ADL
3 stops39h 14mMultiple Airlines
토 24/506:25ADL - ORD
3 stops45h 40mMultiple Airlines
Deal found 17/4$2,269
일 4/518:45ORD - ADL
3 stops45h 25mIberia
화 20/521:40ADL - ORD
2 stops56h 50mIberia
Deal found 17/4$2,692
일 1/617:38ORD - ADL
2 stops26h 12mQantas Airways
일 8/619:00ADL - ORD
2 stops43h 05mQantas Airways
Deal found 17/4$2,703
화 17/618:26ORD - ADL
2 stops26h 09mUnited Airlines
수 25/606:00ADL - ORD
2 stops33h 29mUnited Airlines
Deal found 17/4$2,944
일 1/612:00ORD - ADL
3 stops33h 20mAir Canada
일 8/618:50ADL - ORD
2 stops49h 18mAir Canada
Deal found 17/4$3,306
수 7/519:20ORD - ADL
1 stop30h 00mQatar Airways
일 18/521:40ADL - ORD
1 stop31h 55mQatar Airways
Deal found 17/4$3,917
일 4/516:00ORD - ADL
2 stops33h 05mCathay Pacific
금 16/519:00ADL - ORD
2 stops33h 55mCathay Pacific
Deal found 17/4$4,082

Cheapflights Fare Finder

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 18 4월 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

토 10/5

18:45-11:35

2 stops26h 20m

Adelaide

토 17/5

12:35-20:24

2 stops22h 19m

$2,011

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

토 16/8

12:54-10:55

2 stops31h 31m

Adelaide

일 24/8

11:55-23:15

2 stops25h 50m

$2,174

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

토 17/5

05:51-11:35

3 stops39h 14m

Adelaide

토 24/5

06:25-13:35

3 stops45h 40m

$2,269

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

일 4/5

18:45-06:40

3 stops45h 25m

Adelaide

화 20/5

21:40-16:00

2 stops56h 50m

$2,692

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

일 1/6

17:38-10:20

2 stops26h 12m

Adelaide

일 8/6

19:00-23:35

2 stops43h 05m

$2,703

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

화 17/6

18:26-11:05

2 stops26h 09m

Adelaide

수 25/6

06:00-00:59

2 stops33h 29m

$2,944

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

일 1/6

12:00-11:50

3 stops33h 20m

Adelaide

일 8/6

18:50-05:38

2 stops49h 18m

$3,306

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

수 7/5

19:20-15:50

1 stop30h 00m

Adelaide

일 18/5

21:40-15:05

1 stop31h 55m

$3,917

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

일 4/5

16:00-15:35

2 stops33h 05m

Adelaide

금 16/5

19:00-14:25

2 stops33h 55m

$4,082

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

일 1/6

06:00-08:30

3 stops60h 00m

$1,141

Flights are sorted by cheapest return flights first.

Deals found on 16/4

Showing 1-10 of 13 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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Adelaide

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 18 4월 2025.
Fiji Airways
8.1
Very Good
186 reviews
Check prices

Boarding

8.2

Comfort

8.0

Overall

8.1

Food

7.5

Crew

8.5

Entertainment

7.5

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
8.1
Very Good
186 reviews
Fiji Airways
8.1
Very Good
186 reviews
Check prices

Boarding

8.2

Comfort

8.0

Overall

8.1

Food

7.5

Crew

8.5

Entertainment

7.5

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
8.1
Very Good
186 reviews
Check prices

Boarding

8.2

Comfort

8.0

Overall

8.1

Food

7.5

Crew

8.5

Entertainment

7.5

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
8.1
Very Good
186 reviews
Check prices

Boarding

8.2

Comfort

8.0

Overall

8.1

Food

7.5

Crew

8.5

Entertainment

7.5

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
820 reviews
Fiji Airways
8.1
Very Good
186 reviews
Check prices

Boarding

8.2

Comfort

8.0

Overall

8.1

Food

7.5

Crew

8.5

Entertainment

7.5

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!
Cathay Pacific
7.5
Good
849 reviews
Fiji Airways
8.1
Very Good
186 reviews
Check prices

Boarding

8.2

Comfort

8.0

Overall

8.1

Food

7.5

Crew

8.5

Entertainment

7.5

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?

    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 $1,495 on Air Canada. Other airlines that offer cheap prices include Qatar Airways from $3,000 and Emirates from $3,264 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
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