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Cheap flights from Illinois to Adelaide from $1,107

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 14/9. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Illinois to Adelaide

Cheap return flights

Enter your travel dates to find the best prices.
Air New Zealand Logo
14:00 - 10:55ORD  Chicago O'Hare Intl-ADL Adelaide
28h 25m2 stops Los Angeles Los Angeles Auckland Intl
Air New Zealand Logo
12:05 - 23:02ADL  Adelaide-ORD Chicago O'Hare Intl
27h 27m2 stops Auckland Intl Los Angeles Los Angeles
$1,822Air New Zealand
Wed, 25 Nov - Sun, 6 Dec
Air New Zealand Logo
07:00 - 10:55ORD  Chicago O'Hare Intl-ADL Adelaide
35h 25m2 stops Los Angeles Los Angeles Auckland Intl
Air New Zealand Logo
12:05 - 21:46ADL  Adelaide-ORD Chicago O'Hare Intl
26h 11m2 stops Auckland Intl Los Angeles Los Angeles
$1,822Air New Zealand
Wed, 25 Nov - Sun, 6 Dec
Air New Zealand Logo
07:00 - 10:55ORD  Chicago O'Hare Intl-ADL Adelaide
35h 25m2 stops Los Angeles Los Angeles Auckland Intl
Air New Zealand Logo
12:05 - 23:02ADL  Adelaide-ORD Chicago O'Hare Intl
27h 27m2 stops Auckland Intl Los Angeles Los Angeles
$1,876Air New Zealand
Wed, 25 Nov - Sun, 6 Dec
Air Canada Logo
15:40 - 18:25ORD  Chicago O'Hare Intl-ADL Adelaide
35h 15m2 stops Vancouver Intl Sydney Kingsford Smith
Air Canada Logo
06:10 - 14:37ADL  Adelaide-ORD Chicago O'Hare Intl
23h 57m2 stops Brisbane Vancouver Intl
$1,939Air Canada
Tue, 20 Oct - Wed, 28 Oct
Air Canada Logo
15:40 - 11:50ORD  Chicago O'Hare Intl-ADL Adelaide
29h 40m2 stops Vancouver Intl Sydney Kingsford Smith
Air Canada Logo
20:00 - 20:06ADL  Adelaide-ORD Chicago O'Hare Intl
38h 36m2 stops Sydney Kingsford Smith Vancouver Intl
$1,946Air Canada
Tue, 22 Sep - Tue, 29 Sep
Air Canada Logo
09:50 - 13:55ORD  Chicago O'Hare Intl-ADL Adelaide
36h 35m3 stops Toronto Pearson Intl Vancouver Intl Sydney Kingsford Smith
Air Canada Logo
06:10 - 14:37ADL  Adelaide-ORD Chicago O'Hare Intl
23h 57m2 stops Brisbane Vancouver Intl
$1,950Air Canada
Tue, 20 Oct - Wed, 28 Oct
Air Canada Logo
15:40 - 13:55ORD  Chicago O'Hare Intl-ADL Adelaide
31h 45m2 stops Vancouver Intl Sydney Kingsford Smith
Air Canada Logo
20:00 - 19:48ADL  Adelaide-ORD Chicago O'Hare Intl
38h 18m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
$1,957Air Canada
Tue, 22 Sep - Tue, 29 Sep
Air New Zealand Logo
19:45 - 09:55ORD  Chicago O'Hare Intl-ADL Adelaide
47h 40m2 stops Los Angeles Los Angeles Auckland Intl
Air New Zealand Logo
11:05 - 21:31ADL  Adelaide-ORD Chicago O'Hare Intl
24h 56m2 stops Auckland Intl Los Angeles Los Angeles
$1,963Air New Zealand
Fri, 25 Sep - Fri, 2 Oct
Air Canada Logo
12:59 - 11:50ORD  Chicago O'Hare Intl-ADL Adelaide
32h 21m3 stops Toronto Pearson Intl Vancouver Intl Sydney Kingsford Smith
Air Canada Logo
20:00 - 22:06ADL  Adelaide-ORD Chicago O'Hare Intl
40h 36m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
$1,968Air Canada
Tue, 22 Sep - Tue, 29 Sep
Air Canada Logo
10:43 - 13:55ORD  Chicago O'Hare Intl-ADL Adelaide
35h 42m3 stops Toronto Pearson Intl Vancouver Intl Sydney Kingsford Smith
Air Canada Logo
06:00 - 20:13ADL  Adelaide-ORD Chicago O'Hare Intl
29h 43m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
$1,968Air Canada
Tue, 20 Oct - Wed, 28 Oct

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Air Canada flights from Illinois to Adelaide

Our best Air Canada deals on Illinois to Adelaide flight tickets
Air Canada
20 Oct
ORD15:40Chicago O'Hare Intl
35h 15m
2 stops
ADL18:25Adelaide
28 Oct
ADL06:10Adelaide
23h 57m
2 stops
ORD14:37Chicago O'Hare Intl
$1,939
Air Canada
22 Sept
ORD15:40Chicago O'Hare Intl
29h 40m
2 stops
ADL11:50Adelaide
29 Sept
ADL20:00Adelaide
38h 36m
2 stops
ORD20:06Chicago O'Hare Intl
$1,946
Air Canada
20 Oct
ORD09:50Chicago O'Hare Intl
36h 35m
3 stops
ADL13:55Adelaide
28 Oct
ADL06:10Adelaide
23h 57m
2 stops
ORD14:37Chicago O'Hare Intl
$1,950

Qatar Airways flights from Illinois to Adelaide

Our best Qatar Airways deals on Illinois to Adelaide flight tickets
Qatar Airways
20 Oct
ORD19:20Chicago O'Hare Intl
47h 15m
2 stops
ADL10:05Adelaide
28 Oct
ADL22:00Adelaide
33h 00m
1 stop
ORD15:30Chicago O'Hare Intl
$1,997
Qatar Airways
7 Sept
ORD19:20Chicago O'Hare Intl
29h 10m
1 stop
ADL15:00Adelaide
14 Sept
ADL17:50Adelaide
35h 45m
2 stops
ORD15:05Chicago O'Hare Intl
$2,002
Qatar Airways
9 Sept
ORD19:20Chicago O'Hare Intl
29h 10m
1 stop
ADL15:00Adelaide
16 Sept
ADL18:50Adelaide
34h 45m
2 stops
ORD15:05Chicago O'Hare Intl
$2,036

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 11 August 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
Fastest return journey

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Wed 25/11

14:00-10:55

2 stops28h 25m

Adelaide

Sun 6/12

12:05-23:02

2 stops27h 27m

$1,822

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Wed 25/11

07:00-10:55

2 stops35h 25m

Adelaide

Sun 6/12

12:05-21:46

2 stops26h 11m

$1,822

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Wed 25/11

07:00-10:55

2 stops35h 25m

Adelaide

Sun 6/12

12:05-23:02

2 stops27h 27m

$1,876

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Tue 20/10

15:40-18:25

2 stops35h 15m

Adelaide

Wed 28/10

06:10-14:37

2 stops23h 57m

$1,939

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Tue 22/9

15:40-11:50

2 stops29h 40m

Adelaide

Tue 29/9

20:00-20:06

2 stops38h 36m

$1,946

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Tue 20/10

09:50-13:55

3 stops36h 35m

Adelaide

Wed 28/10

06:10-14:37

2 stops23h 57m

$1,950

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Tue 22/9

15:40-13:55

2 stops31h 45m

Adelaide

Tue 29/9

20:00-19:48

3 stops38h 18m

$1,957

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Fri 25/9

19:45-09:55

2 stops47h 40m

Adelaide

Fri 2/10

11:05-21:31

2 stops24h 56m

$1,963

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Tue 22/9

12:59-11:50

3 stops32h 21m

Adelaide

Tue 29/9

20:00-22:06

3 stops40h 36m

$1,968

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Tue 20/10

10:43-13:55

3 stops35h 42m

Adelaide

Wed 28/10

06:00-20:13

3 stops29h 43m

$1,968

Flights are sorted by cheapest return flights first.

Showing 1-10 of 19 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 month to fly to Adelaide?

The month of September is, on average, the cheapest month to fly to Adelaide from Illinois, with most prices found around $0. If you aren’t able to travel during the month of September, then book flights to Adelaide from Illinois during April instead. Flights to Adelaide in April, while not as cheap as those in September, still average around $0.

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

26h 40m

Direct flights

None
The fastest flight from Illinois to Adelaide takes 26h 40m
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
Stirling

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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