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Cheap flights from Illinois to Adelaide from $971

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 19/3. 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

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Find the cheapest flights from Illinois to Adelaide

Cheap return flights

Enter your travel dates to find the best prices.
Air Canada Logo
15:40 - 11:50
ORD
-
ADL
29h 40m
2 stops
Air Canada Logo
21:20 - 14:45
ADL
-
ORD
31h 55m
2 stops
$1,311Air Canada
Mon, 20 Apr - Mon, 27 Apr
Air Canada Logo
15:40 - 13:55
ORD
-
ADL
31h 45m
2 stops
Air Canada Logo
18:55 - 20:15
ADL
-
ORD
39h 50m
2 stops
$1,320Air Canada
Tue, 14 Apr - Tue, 21 Apr
Air Canada Logo
14:00 - 13:55
ORD
-
ADL
33h 25m
3 stops
Air Canada Logo
21:20 - 14:45
ADL
-
ORD
31h 55m
2 stops
$1,323Air Canada
Mon, 20 Apr - Mon, 27 Apr
Air Canada Logo
09:50 - 11:50
ORD
-
ADL
35h 30m
3 stops
Air Canada Logo
18:55 - 20:15
ADL
-
ORD
39h 50m
2 stops
$1,331Air Canada
Tue, 14 Apr - Tue, 21 Apr
Multiple Airlines Logo
15:40 - 11:50
ORD
-
ADL
29h 40m
2 stops
Multiple Airlines Logo
17:15 - 14:45
ADL
-
ORD
36h 00m
2 stops
$1,370Multiple Airlines
Wed, 15 Apr - Wed, 22 Apr
Air Canada Logo
15:40 - 11:50
ORD
-
ADL
29h 40m
2 stops
Air Canada Logo
18:55 - 14:45
ADL
-
ORD
34h 20m
2 stops
$1,373Air Canada
Wed, 15 Apr - Wed, 22 Apr
Multiple Airlines Logo
15:40 - 11:15
ORD
-
ADL
29h 05m
2 stops
Multiple Airlines Logo
17:15 - 14:45
ADL
-
ORD
36h 00m
2 stops
$1,481Multiple Airlines
Mon, 27 Apr - Thu, 7 May
Multiple Airlines Logo
14:00 - 11:05
ORD
-
ADL
30h 35m
3 stops
Multiple Airlines Logo
17:15 - 14:45
ADL
-
ORD
36h 00m
2 stops
$1,496Multiple Airlines
Mon, 27 Apr - Thu, 7 May
Multiple Airlines Logo
14:00 - 11:50
ORD
-
ADL
31h 20m
3 stops
Multiple Airlines Logo
19:35 - 19:25
ADL
-
ORD
38h 20m
3 stops
$1,550Multiple Airlines
Wed, 15 Apr - Wed, 22 Apr
Air Canada Logo
10:52 - 11:50
ORD
-
ADL
34h 28m
3 stops
Air Canada Logo
19:00 - 19:25
ADL
-
ORD
38h 55m
3 stops
$1,552Air Canada
Tue, 14 Apr - Tue, 21 Apr

Qantas Airways flights from Illinois to Adelaide

Our best Qantas Airways deals on Illinois to Adelaide flight tickets
Qantas Airways
14 Mar
ORD20:21Chicago O'Hare Intl
45h 59m
2 stops
ADL09:50Adelaide
25 Mar
ADL07:50Adelaide
25h 26m
2 stops
ORD17:46Chicago O'Hare Intl
$1,687
Qantas Airways
14 Mar
ORD20:21Chicago O'Hare Intl
45h 59m
2 stops
ADL09:50Adelaide
23 Mar
ADL07:50Adelaide
29h 15m
2 stops
ORD21:35Chicago O'Hare Intl
$1,698
Qantas Airways
15 Mar
ORD19:29Chicago O'Hare Intl
26h 46m
2 stops
ADL13:45Adelaide
25 Mar
ADL12:35Adelaide
26h 42m
2 stops
ORD23:47Chicago O'Hare Intl
$2,174

Cathay Pacific flights from Illinois to Adelaide

Our best Cathay Pacific deals on Illinois to Adelaide flight tickets
Cathay Pacific
16 Mar
ORD15:35Chicago O'Hare Intl
27h 25m
1 stop
ADL10:30Adelaide
25 Mar
ADL14:25Adelaide
39h 00m
2 stops
ORD13:55Chicago O'Hare Intl
$2,908
Cathay Pacific
4 Mar
ORD14:35Chicago O'Hare Intl
27h 25m
1 stop
ADL10:30Adelaide
8 Mar
ADL12:00Adelaide
41h 25m
2 stops
ORD12:55Chicago O'Hare Intl
$3,243
Cathay Pacific
15 Mar
ORD15:35Chicago O'Hare Intl
30h 40m
2 stops
ADL13:45Adelaide
25 Mar
ADL12:00Adelaide
41h 25m
1 stop
ORD13:55Chicago O'Hare Intl
$3,299

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 2 March 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 20/4

15:40-11:50

2 stops29h 40m

Adelaide

Mon 27/4

21:20-14:45

2 stops31h 55m

$1,311

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Tue 14/4

15:40-13:55

2 stops31h 45m

Adelaide

Tue 21/4

18:55-20:15

2 stops39h 50m

$1,320

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 20/4

14:00-13:55

3 stops33h 25m

Adelaide

Mon 27/4

21:20-14:45

2 stops31h 55m

$1,323

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Tue 14/4

09:50-11:50

3 stops35h 30m

Adelaide

Tue 21/4

18:55-20:15

2 stops39h 50m

$1,331

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Wed 15/4

15:40-11:50

2 stops29h 40m

Adelaide

Wed 22/4

17:15-14:45

2 stops36h 00m

$1,370

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Wed 15/4

15:40-11:50

2 stops29h 40m

Adelaide

Wed 22/4

18:55-14:45

2 stops34h 20m

$1,373

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 27/4

15:40-11:15

2 stops29h 05m

Adelaide

Thu 7/5

17:15-14:45

2 stops36h 00m

$1,481

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 27/4

14:00-11:05

3 stops30h 35m

Adelaide

Thu 7/5

17:15-14:45

2 stops36h 00m

$1,496

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Wed 15/4

14:00-11:50

3 stops31h 20m

Adelaide

Wed 22/4

19:35-19:25

3 stops38h 20m

$1,550

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Tue 14/4

10:52-11:50

3 stops34h 28m

Adelaide

Tue 21/4

19:00-19:25

3 stops38h 55m

$1,552

Flights are sorted by cheapest return 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

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

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 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.

An easier way to manage your Adelaide trip

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