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Cheap flights from Illinois to Adelaide from $852

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 5/9. 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

Find the cheapest flights from Illinois to Adelaide

Cheap return flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
15:20 - 09:25
ORD
-
ADL
27h 35m
2 stops
Qantas Airways Logo
06:00 - 17:43
ADL
-
ORD
26h 13m
2 stops
$1,914Qantas Airways
Thu, 28 May - Thu, 4 Jun
Qantas Airways Logo
16:30 - 09:25
ORD
-
ADL
26h 25m
2 stops
Qantas Airways Logo
06:00 - 16:44
ADL
-
ORD
25h 14m
2 stops
$1,916Qantas Airways
Tue, 12 May - Fri, 29 May
Qantas Airways Logo
19:21 - 11:55
ORD
-
ADL
26h 04m
2 stops
Qantas Airways Logo
06:00 - 15:52
ADL
-
ORD
24h 22m
2 stops
$1,935Qantas Airways
Thu, 14 May - Sat, 23 May
Qantas Airways Logo
19:01 - 11:55
ORD
-
ADL
26h 24m
2 stops
Qantas Airways Logo
06:00 - 19:58
ADL
-
ORD
28h 28m
2 stops
$1,959Qantas Airways
Thu, 2 Jul - Sun, 2 Aug
Qantas Airways Logo
17:10 - 11:15
ORD
-
ADL
27h 35m
2 stops
Qantas Airways Logo
07:50 - 19:33
ADL
-
ORD
26h 13m
2 stops
$1,974Qantas Airways
Wed, 27 May - Wed, 3 Jun
Qantas Airways Logo
13:18 - 11:15
ORD
-
ADL
31h 27m
2 stops
Qantas Airways Logo
10:10 - 19:33
ADL
-
ORD
23h 53m
2 stops
$1,994Qantas Airways
Thu, 14 May - Sat, 23 May
Qantas Airways Logo
19:21 - 11:05
ORD
-
ADL
25h 14m
2 stops
Qantas Airways Logo
10:10 - 20:21
ADL
-
ORD
24h 41m
2 stops
$2,001Qantas Airways
Thu, 14 May - Sat, 23 May
Qantas Airways Logo
19:21 - 11:05
ORD
-
ADL
25h 14m
2 stops
Qantas Airways Logo
06:00 - 15:52
ADL
-
ORD
24h 22m
2 stops
$2,002Qantas Airways
Thu, 14 May - Sat, 23 May
Qantas Airways Logo
19:21 - 19:05
ORD
-
ADL
33h 14m
2 stops
Qantas Airways Logo
06:00 - 16:55
ADL
-
ORD
25h 25m
2 stops
$2,056Qantas Airways
Sun, 3 May - Sat, 16 May
Qantas Airways Logo
15:52 - 09:25
ORD
-
ADL
27h 03m
2 stops
Qantas Airways Logo
06:00 - 15:53
ADL
-
ORD
24h 23m
2 stops
$2,079Qantas Airways
Sat, 4 Jul - Thu, 9 Jul

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Air Canada flights from Illinois to Adelaide

Our best Air Canada deals on Illinois to Adelaide flight tickets
Air Canada
28 May
ORD14:15Chicago O'Hare Intl
33h 10m
3 stops
ADL13:55Adelaide
4 June
ADL20:00Adelaide
33h 15m
2 stops
ORD14:45Chicago O'Hare Intl
$2,404
Air Canada
28 May
ORD14:15Chicago O'Hare Intl
33h 10m
3 stops
ADL13:55Adelaide
4 June
ADL20:00Adelaide
37h 55m
3 stops
ORD19:25Chicago O'Hare Intl
$2,416
Air Canada
3 June
ORD15:40Chicago O'Hare Intl
31h 45m
2 stops
ADL13:55Adelaide
7 June
ADL18:55Adelaide
34h 20m
2 stops
ORD14:45Chicago O'Hare Intl
$2,472

Qantas Airways flights from Illinois to Adelaide

Our best Qantas Airways deals on Illinois to Adelaide flight tickets
Qantas Airways
28 May
ORD15:20Chicago O'Hare Intl
27h 35m
2 stops
ADL09:25Adelaide
4 June
ADL06:00Adelaide
26h 13m
2 stops
ORD17:43Chicago O'Hare Intl
$1,914
Qantas Airways
12 May
ORD16:30Chicago O'Hare Intl
26h 25m
2 stops
ADL09:25Adelaide
29 May
ADL06:00Adelaide
25h 14m
2 stops
ORD16:44Chicago O'Hare Intl
$1,916
Qantas Airways
2 July
ORD19:01Chicago O'Hare Intl
26h 24m
2 stops
ADL11:55Adelaide
2 Aug
ADL06:00Adelaide
28h 28m
2 stops
ORD19:58Chicago O'Hare Intl
$1,959

momondo 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, momondo users made 78,305 searches. Data last updated 17 April 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 return flight

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Thu 28/5

15:20-09:25

2 stops27h 35m

Adelaide

Thu 4/6

06:00-17:43

2 stops26h 13m

$1,914

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Tue 12/5

16:30-09:25

2 stops26h 25m

Adelaide

Fri 29/5

06:00-16:44

2 stops25h 14m

$1,916

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Thu 14/5

19:21-11:55

2 stops26h 04m

Adelaide

Sat 23/5

06:00-15:52

2 stops24h 22m

$1,935

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Thu 2/7

19:01-11:55

2 stops26h 24m

Adelaide

Sun 2/8

06:00-19:58

2 stops28h 28m

$1,959

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Wed 27/5

17:10-11:15

2 stops27h 35m

Adelaide

Wed 3/6

07:50-19:33

2 stops26h 13m

$1,974

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Thu 14/5

13:18-11:15

2 stops31h 27m

Adelaide

Sat 23/5

10:10-19:33

2 stops23h 53m

$1,994

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Thu 14/5

19:21-11:05

2 stops25h 14m

Adelaide

Sat 23/5

10:10-20:21

2 stops24h 41m

$2,001
Fastest return journey

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Thu 14/5

19:21-11:05

2 stops25h 14m

Adelaide

Sat 23/5

06:00-15:52

2 stops24h 22m

$2,002

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 3/5

19:21-19:05

2 stops33h 14m

Adelaide

Sat 16/5

06:00-16:55

2 stops25h 25m

$2,056

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sat 4/7

15:52-09:25

2 stops27h 03m

Adelaide

Thu 9/7

06:00-15:53

2 stops24h 23m

$2,079

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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

Can stopping save me money on Illinois to Adelaide flights?

You could potentially save up to 2% on your flight if you consider stops on a Illinois to Adelaide flight.

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 14m

Direct flights

None
The fastest flight from Illinois to Adelaide takes 25h 14m
There are no direct flights from Illinois to Adelaide. There are no popular flight routes from Illinois to Adelaide.
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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 old do you have to be to fly from Illinois to Adelaide Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check 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 travel and health documents required for your trip to Adelaide Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Adelaide Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling 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 collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to Adelaide. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Illinois to Adelaide flights to just show those with flexible booking policies.

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

Once you have performed a search for Illinois to Adelaide flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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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