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Cheap flights from Illinois to Adelaide from $691

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 3/19. 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

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Find the cheapest flights from Illinois to Adelaide

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
3:40 pm - 11:50 am
ORD
-
ADL
29h 40m
2 stops
Air Canada Logo
9:20 pm - 2:45 pm
ADL
-
ORD
31h 55m
2 stops
$933Air Canada
Mon, Apr 20 - Mon, Apr 27
Air Canada Logo
3:40 pm - 1:55 pm
ORD
-
ADL
31h 45m
2 stops
Air Canada Logo
6:55 pm - 8:15 pm
ADL
-
ORD
39h 50m
2 stops
$939Air Canada
Tue, Apr 14 - Tue, Apr 21
Air Canada Logo
2:00 pm - 1:55 pm
ORD
-
ADL
33h 25m
3 stops
Air Canada Logo
9:20 pm - 2:45 pm
ADL
-
ORD
31h 55m
2 stops
$941Air Canada
Mon, Apr 20 - Mon, Apr 27
Air Canada Logo
9:50 am - 11:50 am
ORD
-
ADL
35h 30m
3 stops
Air Canada Logo
6:55 pm - 8:15 pm
ADL
-
ORD
39h 50m
2 stops
$947Air Canada
Tue, Apr 14 - Tue, Apr 21
Multiple Airlines Logo
3:40 pm - 11:50 am
ORD
-
ADL
29h 40m
2 stops
Multiple Airlines Logo
5:15 pm - 2:45 pm
ADL
-
ORD
36h 00m
2 stops
$975Multiple Airlines
Wed, Apr 15 - Wed, Apr 22
Air Canada Logo
3:40 pm - 11:50 am
ORD
-
ADL
29h 40m
2 stops
Air Canada Logo
6:55 pm - 2:45 pm
ADL
-
ORD
34h 20m
2 stops
$977Air Canada
Wed, Apr 15 - Wed, Apr 22
Multiple Airlines Logo
2:00 pm - 11:50 am
ORD
-
ADL
31h 20m
3 stops
Multiple Airlines Logo
7:35 pm - 7:25 pm
ADL
-
ORD
38h 20m
3 stops
$1,103Multiple Airlines
Wed, Apr 15 - Wed, Apr 22
Air Canada Logo
10:52 am - 11:50 am
ORD
-
ADL
34h 28m
3 stops
Air Canada Logo
7:00 pm - 7:25 pm
ADL
-
ORD
38h 55m
3 stops
$1,104Air Canada
Tue, Apr 14 - Tue, Apr 21
Multiple Airlines Logo
3:40 pm - 11:50 am
ORD
-
ADL
29h 40m
2 stops
Multiple Airlines Logo
7:35 pm - 7:25 pm
ADL
-
ORD
38h 20m
3 stops
$1,131Multiple Airlines
Wed, Apr 15 - Wed, Apr 22
Qantas Airways Logo
8:21 pm - 9:50 am
ORD
-
ADL
45h 59m
2 stops
Qantas Airways Logo
7:50 am - 5:46 pm
ADL
-
ORD
25h 26m
2 stops
$1,200Qantas Airways
Sat, Mar 14 - Wed, Mar 25

Qantas Airways flights from Illinois to Adelaide

Our best Qantas Airways deals on Illinois to Adelaide flight tickets
Qantas Airways
Mar 14
ORD8:21 pmChicago O'Hare Intl
45h 59m
2 stops
ADL9:50 amAdelaide
Mar 25
ADL7:50 amAdelaide
25h 26m
2 stops
ORD5:46 pmChicago O'Hare Intl
$1,200
Qantas Airways
Mar 14
ORD8:21 pmChicago O'Hare Intl
45h 59m
2 stops
ADL9:50 amAdelaide
Mar 23
ADL7:50 amAdelaide
29h 15m
2 stops
ORD9:35 pmChicago O'Hare Intl
$1,208
Qantas Airways
Mar 15
ORD7:29 pmChicago O'Hare Intl
26h 46m
2 stops
ADL1:45 pmAdelaide
Mar 25
ADL12:35 pmAdelaide
26h 42m
2 stops
ORD11:47 pmChicago O'Hare Intl
$1,547

United Airlines flights from Illinois to Adelaide

Our best United Airlines deals on Illinois to Adelaide flight tickets
United Airlines
Mar 9
ORD6:20 pmChicago O'Hare Intl
23h 30m
1 stop
ADL9:20 amAdelaide
Mar 23
ADL2:15 pmAdelaide
22h 44m
2 stops
ORD9:29 pmChicago O'Hare Intl
$1,152
United Airlines
Mar 14
ORD6:20 pmChicago O'Hare Intl
22h 40m
1 stop
ADL8:30 amAdelaide
Mar 23
ADL2:15 pmAdelaide
21h 30m
1 stop
ORD8:15 pmChicago O'Hare Intl
$1,209
United Airlines
Mar 14
ORD2:45 pmChicago O'Hare Intl
26h 15m
2 stops
ADL8:30 amAdelaide
Mar 25
ADL2:15 pmAdelaide
21h 30m
1 stop
ORD8:15 pmChicago O'Hare Intl
$1,213

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 March 2, 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

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 4/20

3:40 pm-11:50 am

2 stops29h 40m

Adelaide

Mon 4/27

9:20 pm-2:45 pm

2 stops31h 55m

$933

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Tue 4/14

3:40 pm-1:55 pm

2 stops31h 45m

Adelaide

Tue 4/21

6:55 pm-8:15 pm

2 stops39h 50m

$939

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 4/20

2:00 pm-1:55 pm

3 stops33h 25m

Adelaide

Mon 4/27

9:20 pm-2:45 pm

2 stops31h 55m

$941

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Tue 4/14

9:50 am-11:50 am

3 stops35h 30m

Adelaide

Tue 4/21

6:55 pm-8:15 pm

2 stops39h 50m

$947

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Wed 4/15

3:40 pm-11:50 am

2 stops29h 40m

Adelaide

Wed 4/22

5:15 pm-2:45 pm

2 stops36h 00m

$975

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Wed 4/15

3:40 pm-11:50 am

2 stops29h 40m

Adelaide

Wed 4/22

6:55 pm-2:45 pm

2 stops34h 20m

$977

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Wed 4/15

2:00 pm-11:50 am

3 stops31h 20m

Adelaide

Wed 4/22

7:35 pm-7:25 pm

3 stops38h 20m

$1,103

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Tue 4/14

10:52 am-11:50 am

3 stops34h 28m

Adelaide

Tue 4/21

7:00 pm-7:25 pm

3 stops38h 55m

$1,104

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Wed 4/15

3:40 pm-11:50 am

2 stops29h 40m

Adelaide

Wed 4/22

7:35 pm-7:25 pm

3 stops38h 20m

$1,131

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sat 3/14

8:21 pm-9:50 am

2 stops45h 59m

Adelaide

Wed 3/25

7:50 am-5:46 pm

2 stops25h 26m

$1,200

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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?

United Airlines and Qatar Airways are the most popular carriers operating from Illinois to Adelaide

What airlines fly to Adelaide?

Fiji Airways, Air New Zealand and United Airlines 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

22h 40m

Direct flights

None
The fastest flight from Illinois to Adelaide takes 22h 40m
There are no direct flights from Illinois to Adelaide. There are no popular flight routes from Illinois to Adelaide.
Search flight deals

  • 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
1,000 reviews
Search Qantas Airways flights
Air New ZealandPriceFrom $1,303Free CancellationRating
8.0
605 reviews
Search Air New Zealand flights
Fiji AirwaysPriceFrom $1,351Free CancellationRating
8.0
228 reviews
Search Fiji Airways flights
United AirlinesPriceFrom $1,673Free CancellationRating
7.4
9,372 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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