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Cheap flights from Illinois to Adelaide from $743

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Adelaide departing on 5/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Adelaide

Cheap round-trip flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
4:30 pm - 9:25 am
ORD
-
ADL
26h 25m
2 stops
Qantas Airways Logo
6:00 am - 4:44 pm
ADL
-
ORD
25h 14m
2 stops
$1,374Qantas Airways
Tue, May 12 - Fri, May 29
Qantas Airways Logo
7:21 pm - 11:55 am
ORD
-
ADL
26h 04m
2 stops
Qantas Airways Logo
6:00 am - 3:52 pm
ADL
-
ORD
24h 22m
2 stops
$1,388Qantas Airways
Thu, May 14 - Sat, May 23
Qantas Airways Logo
7:01 pm - 11:55 am
ORD
-
ADL
26h 24m
2 stops
Qantas Airways Logo
6:00 am - 7:58 pm
ADL
-
ORD
28h 28m
2 stops
$1,405Qantas Airways
Thu, Jul 2 - Sun, Aug 2
Qantas Airways Logo
5:10 pm - 11:55 am
ORD
-
ADL
28h 15m
2 stops
Qantas Airways Logo
6:00 am - 7:58 pm
ADL
-
ORD
28h 28m
2 stops
$1,407Qantas Airways
Thu, Jul 2 - Sun, Aug 2
Qantas Airways Logo
5:10 pm - 11:15 am
ORD
-
ADL
27h 35m
2 stops
Qantas Airways Logo
7:50 am - 7:33 pm
ADL
-
ORD
26h 13m
2 stops
$1,416Qantas Airways
Wed, May 27 - Wed, Jun 3
Qantas Airways Logo
7:21 pm - 11:55 am
ORD
-
ADL
26h 04m
2 stops
Qantas Airways Logo
10:10 am - 7:33 pm
ADL
-
ORD
23h 53m
2 stops
$1,435Qantas Airways
Thu, May 14 - Sat, May 23
Qantas Airways Logo
7:21 pm - 11:05 am
ORD
-
ADL
25h 14m
2 stops
Qantas Airways Logo
6:00 am - 3:52 pm
ADL
-
ORD
24h 22m
2 stops
$1,436Qantas Airways
Thu, May 14 - Sat, May 23
Qantas Airways Logo
3:50 pm - 9:25 am
ORD
-
ADL
27h 05m
2 stops
Qantas Airways Logo
1:25 pm - 11:58 pm
ADL
-
ORD
25h 03m
2 stops
$1,439Qantas Airways
Wed, Jun 3 - Wed, Jun 10
Qantas Airways Logo
6:59 pm - 11:05 am
ORD
-
ADL
25h 36m
2 stops
Qantas Airways Logo
1:10 pm - 2:18 pm
ADL
-
ORD
39h 38m
2 stops
$1,471Qantas Airways
Mon, Jun 15 - Sun, Jun 28
Qantas Airways Logo
3:52 pm - 9:25 am
ORD
-
ADL
27h 03m
2 stops
Qantas Airways Logo
6:00 am - 3:53 pm
ADL
-
ORD
24h 23m
2 stops
$1,491Qantas Airways
Sat, Jul 4 - Thu, Jul 9

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Qatar Airways flights from Illinois to Adelaide

Our best Qatar Airways deals on Illinois to Adelaide flight tickets
Qatar Airways
Aug 10
ORD7:20 pmChicago O'Hare Intl
30h 00m
1 stop
ADL3:50 pmAdelaide
Aug 19
ADL11:50 amAdelaide
41h 45m
2 stops
ORD3:05 pmChicago O'Hare Intl
$1,823
Qatar Airways
Aug 10
ORD7:20 pmChicago O'Hare Intl
29h 40m
1 stop
ADL3:30 pmAdelaide
Aug 19
ADL11:50 amAdelaide
41h 45m
2 stops
ORD3:05 pmChicago O'Hare Intl
$1,844
Qatar Airways
Aug 10
ORD7:20 pmChicago O'Hare Intl
29h 40m
1 stop
ADL3:30 pmAdelaide
Aug 19
ADL11:50 amAdelaide
41h 45m
2 stops
ORD3:05 pmChicago O'Hare Intl
$1,845

Qantas Airways flights from Illinois to Adelaide

Our best Qantas Airways deals on Illinois to Adelaide flight tickets
Qantas Airways
May 12
ORD4:30 pmChicago O'Hare Intl
26h 25m
2 stops
ADL9:25 amAdelaide
May 29
ADL6:00 amAdelaide
25h 14m
2 stops
ORD4:44 pmChicago O'Hare Intl
$1,374
Qantas Airways
May 14
ORD7:21 pmChicago O'Hare Intl
26h 04m
2 stops
ADL11:55 amAdelaide
May 23
ADL6:00 amAdelaide
24h 22m
2 stops
ORD3:52 pmChicago O'Hare Intl
$1,388
Qantas Airways
Jul 2
ORD7:01 pmChicago O'Hare Intl
26h 24m
2 stops
ADL11:55 amAdelaide
Aug 2
ADL6:00 amAdelaide
28h 28m
2 stops
ORD7:58 pmChicago O'Hare Intl
$1,405

momondo 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, momondo users made 832,500 searches. Data last updated April 20, 2026.
Use the filters below to find and compare flights from Illinois to Adelaide that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Tue 5/12

4:30 pm-9:25 am

2 stops26h 25m

Adelaide

Fri 5/29

6:00 am-4:44 pm

2 stops25h 14m

$1,374

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Thu 5/14

7:21 pm-11:55 am

2 stops26h 04m

Adelaide

Sat 5/23

6:00 am-3:52 pm

2 stops24h 22m

$1,388

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Thu 7/2

7:01 pm-11:55 am

2 stops26h 24m

Adelaide

Sun 8/2

6:00 am-7:58 pm

2 stops28h 28m

$1,405

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Thu 7/2

5:10 pm-11:55 am

2 stops28h 15m

Adelaide

Sun 8/2

6:00 am-7:58 pm

2 stops28h 28m

$1,407

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Wed 5/27

5:10 pm-11:15 am

2 stops27h 35m

Adelaide

Wed 6/3

7:50 am-7:33 pm

2 stops26h 13m

$1,416

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Thu 5/14

7:21 pm-11:55 am

2 stops26h 04m

Adelaide

Sat 5/23

10:10 am-7:33 pm

2 stops23h 53m

$1,435
Quickest round-trip

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Thu 5/14

7:21 pm-11:05 am

2 stops25h 14m

Adelaide

Sat 5/23

6:00 am-3:52 pm

2 stops24h 22m

$1,436

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Wed 6/3

3:50 pm-9:25 am

2 stops27h 05m

Adelaide

Wed 6/10

1:25 pm-11:58 pm

2 stops25h 03m

$1,439

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 6/15

6:59 pm-11:05 am

2 stops25h 36m

Adelaide

Sun 6/28

1:10 pm-2:18 pm

2 stops39h 38m

$1,471

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sat 7/4

3:52 pm-9:25 am

2 stops27h 03m

Adelaide

Thu 7/9

6:00 am-3:53 pm

2 stops24h 23m

$1,491

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to Adelaide from

How to get the cheapest flight ticket from Illinois to Adelaide

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Illinois to Adelaide?

Air Canada and Emirates are the most popular carriers operating from Illinois to Adelaide

What airlines fly to Adelaide?

Fiji Airways, United Airlines and Air New Zealand are the top three most popular airlines that fly to Adelaide from Illinois according to our data. Fiji Airways is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Adelaide. Keep in mind that there are 4 different airlines that fly to Adelaide on a routine basis, so you have a few additional options to choose from.

Cheap Illinois to Adelaide flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Adelaide

Fastest flight time

25h 40m

Direct flights

None
The fastest flight from Illinois to Adelaide takes 25h 40m
There are no direct flights from Illinois to Adelaide. There are no popular flight routes from Illinois to Adelaide.
Search flight deals

Frequently asked questions about flying from Illinois to Adelaide

  • When did momondo last update prices for flights from Illinois to Adelaide Airport?

    Prices for flights from Illinois to Adelaide Airport refresh daily.

  • How many operators does momondo search for flights from Illinois to Adelaide Airport?

  • How old do you have to be to fly from Illinois to Adelaide Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Adelaide Airport.

  • What documentation or ID do you need to fly to Adelaide Airport?

    The required travel and health documents for your Adelaide Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Adelaide Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Illinois to Adelaide

Compare and see reviews for airlines that fly from Illinois to Adelaide with momondo
Airline
Rating
Free Cancellation
Price
Qantas AirwaysPriceFrom $941Free CancellationRating
7.5
1,022 reviews
Search Qantas Airways flights
Air New ZealandPriceFrom $1,303Free CancellationRating
8.0
632 reviews
Search Air New Zealand flights
Fiji AirwaysPriceFrom $1,351Free CancellationRating
8.1
240 reviews
Search Fiji Airways flights
United AirlinesPriceFrom $1,673Free CancellationRating
7.4
9,608 reviews
Search United Airlines flights

Traveling to a place near Adelaide?

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

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Adelaide?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Illinois to Adelaide. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Illinois to Adelaide with flexible booking policies on momondo?

momondo does allow users to show only those flights to Adelaide from Illinois which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Illinois to Adelaide?

Once all potential Illinois to Adelaide flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Illinois to Adelaide right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Adelaide from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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