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

Qantas Airways, United Airlines, and Air Canada are the most popular carriers operating 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.

$2,198 Cheap Flights from Illinois to Adelaide in 2025/26

1 adult

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Find the cheapest flights from Illinois to Adelaide

Round-trip

One-way

Cheap return flights

16:40 - 10:55ORD-ADL

49h 45m2 stops

11:55 - 06:08ADL-ORD

34h 43m2 stops

$2,198Air New Zealand

Find Deal

Thu, 27 Nov - Sun, 14 Dec

07:25 - 10:55ORD-ADL

36h 00m2 stops

11:55 - 23:00ADL-ORD

27h 35m2 stops

$2,211Multiple Airlines

Find Deal

Sun, 26 Oct - Fri, 14 Nov

18:16 - 12:35ORD-ADL

26h 49m2 stops

13:15 - 21:14ADL-ORD

23h 29m2 stops

$2,385Fiji Airways

Find Deal

Tue, 21 Oct - Sat, 1 Nov

18:16 - 12:35ORD-ADL

26h 49m2 stops

13:15 - 21:24ADL-ORD

24h 39m2 stops

$2,486Fiji Airways

Find Deal

Tue, 21 Oct - Mon, 3 Nov

15:40 - 18:10ORD-ADL

35h 00m2 stops

18:55 - 14:41ADL-ORD

36h 16m2 stops

$2,573Air Canada

Find Deal

Mon, 27 Oct - Sat, 15 Nov

15:00 - 13:40ORD-ADL

30h 10m2 stops

07:05 - 21:25ADL-ORD

30h 50m2 stops

$2,601Qantas Airways

Find Deal

Sun, 23 Nov - Tue, 16 Dec

13:49 - 13:40ORD-ADL

31h 21m2 stops

06:25 - 16:54ADL-ORD

26h 59m2 stops

$2,602Qantas Airways

Find Deal

Sun, 23 Nov - Sun, 14 Dec

16:40 - 14:10ORD-ADL

29h 00m2 stops

14:55 - 06:19ADL-ORD

31h 54m2 stops

$2,614United Airlines

Find Deal

Mon, 24 Nov - Mon, 15 Dec

21:08 - 10:55ORD-ADL

45h 17m2 stops

14:55 - 06:19ADL-ORD

31h 54m2 stops

$2,639United Airlines

Find Deal

Sat, 22 Nov - Mon, 15 Dec

15:40 - 22:30ORD-ADL

39h 20m2 stops

06:00 - 19:30ADL-ORD

30h 00m3 stops

$2,653Air Canada

Find Deal

Sun, 26 Oct - Fri, 14 Nov

Air New Zealand flights from Illinois to Adelaide

Our best Air New Zealand deals on Illinois to Adelaide flight tickets

Air New Zealand

27 Nov

ORD16:40Chicago O'Hare Intl

49h 45m

2 stops

ADL10:55Adelaide

14 Dec

ADL11:55Adelaide

34h 43m

2 stops

ORD06:08Chicago O'Hare Intl

$2,198

Find similar

Air New Zealand

26 Oct

ORD07:10Chicago O'Hare Intl

36h 15m

2 stops

ADL10:55Adelaide

14 Nov

ADL11:55Adelaide

27h 32m

2 stops

ORD22:57Chicago O'Hare Intl

$2,234

Find similar

Air New Zealand

26 Oct

ORD07:10Chicago O'Hare Intl

36h 15m

2 stops

ADL10:55Adelaide

14 Nov

ADL11:55Adelaide

29h 34m

2 stops

ORD00:59Chicago O'Hare Intl

$2,263

Find similar

Fiji Airways flights from Illinois to Adelaide

Our best Fiji Airways deals on Illinois to Adelaide flight tickets

Fiji Airways

21 Oct

ORD18:16Chicago O'Hare Intl

26h 49m

2 stops

ADL12:35Adelaide

1 Nov

ADL13:15Adelaide

23h 29m

2 stops

ORD21:14Chicago O'Hare Intl

$2,385

Find similar

Fiji Airways

21 Oct

ORD18:16Chicago O'Hare Intl

26h 49m

2 stops

ADL12:35Adelaide

3 Nov

ADL13:15Adelaide

24h 39m

2 stops

ORD21:24Chicago O'Hare Intl

$2,486

Find similar

Fiji Airways

23 Oct

ORD19:01Chicago O'Hare Intl

26h 04m

2 stops

ADL12:35Adelaide

1 Nov

ADL13:15Adelaide

23h 29m

2 stops

ORD21:14Chicago O'Hare Intl

$2,494

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Thu 27/11

16:40-10:55

2 stops49h 45m

Adelaide

Sun 14/12

11:55-06:08

2 stops34h 43m

$2,198

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 26/10

07:25-10:55

2 stops36h 00m

Adelaide

Fri 14/11

11:55-23:00

2 stops27h 35m

$2,211

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Tue 21/10

18:16-12:35

2 stops26h 49m

Adelaide

Sat 1/11

13:15-21:14

2 stops23h 29m

$2,385

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Tue 21/10

18:16-12:35

2 stops26h 49m

Adelaide

Mon 3/11

13:15-21:24

2 stops24h 39m

$2,486

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 27/10

15:40-18:10

2 stops35h 00m

Adelaide

Sat 15/11

18:55-14:41

2 stops36h 16m

$2,573

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 23/11

15:00-13:40

2 stops30h 10m

Adelaide

Tue 16/12

07:05-21:25

2 stops30h 50m

$2,601

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 23/11

13:49-13:40

2 stops31h 21m

Adelaide

Sun 14/12

06:25-16:54

2 stops26h 59m

$2,602

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 24/11

16:40-14:10

2 stops29h 00m

Adelaide

Mon 15/12

14:55-06:19

2 stops31h 54m

$2,614

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sat 22/11

21:08-10:55

2 stops45h 17m

Adelaide

Mon 15/12

14:55-06:19

2 stops31h 54m

$2,639

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 26/10

15:40-22:30

2 stops39h 20m

Adelaide

Fri 14/11

06:00-19:30

3 stops30h 00m

$2,653

Flights are sorted by cheapest return flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest time of day to depart on your flight to Adelaide?

The cheapest time of day to fly to Adelaide is in the afternoon when flights can be purchased for as low as $2,297. Flights in the evening are often more expensive, with an average ticket price of $2,625.

Cheap Illinois to Adelaide flight deals and tips

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

Direct flights	None

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.

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.