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Cheap flights from Adelaide to Illinois from $1,754

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Adelaide to Illinois departing on 15/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
16:10 - 23:07ADL-ORD
23h 27m2 stops
Multiple Airlines Logo
18:17 - 13:40ORD-ADL
26h 53m2 stops
$1,754Multiple Airlines
Find Deal
Sat, 15 Nov - Mon, 15 Dec
Air Canada Logo
18:55 - 19:53ADL-ORD
40h 28m2 stops
Air Canada Logo
13:00 - 16:20ORD-ADL
35h 50m2 stops
$1,919Air Canada
Find Deal
Sun, 8 Mar - Wed, 11 Mar
Cathay Pacific Logo
07:50 - 12:55ADL-ORD
45h 35m2 stops
Cathay Pacific Logo
15:35 - 10:30ORD-ADL
27h 25m1 stop
$2,246Cathay Pacific
Find Deal
Sun, 8 Mar - Wed, 11 Mar
Cathay Pacific Logo
07:50 - 12:55ADL-ORD
45h 35m2 stops
Cathay Pacific Logo
15:35 - 10:30ORD-ADL
27h 25m1 stop
$2,248Cathay Pacific
Find Deal
Sun, 8 Mar - Wed, 11 Mar
Virgin Australia Logo
06:00 - 14:25ADL-ORD
24h 55m2 stops
Virgin Australia Logo
18:35 - 09:30ORD-ADL
22h 25m1 stop
$2,352Virgin Australia
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Sat, 15 Nov - Mon, 15 Dec
United Airlines Logo
14:55 - 23:59ADL-ORD
25h 34m2 stops
United Airlines Logo
14:40 - 09:30ORD-ADL
26h 20m1 stop
$2,624United Airlines
Find Deal
Wed, 17 Dec - Sat, 3 Jan
Qantas Airways Logo
12:35 - 23:59ADL-ORD
27h 54m2 stops
Qantas Airways Logo
16:34 - 15:25ORD-ADL
30h 21m2 stops
$2,639Qantas Airways
Find Deal
Wed, 17 Dec - Tue, 30 Dec
United Airlines Logo
14:55 - 21:32ADL-ORD
23h 07m1 stop
United Airlines Logo
21:05 - 09:30ORD-ADL
43h 55m1 stop
$2,698United Airlines
Find Deal
Sat, 20 Dec - Wed, 31 Dec
Qantas Airways Logo
06:25 - 21:09ADL-ORD
31h 14m2 stops
Qantas Airways Logo
16:34 - 15:25ORD-ADL
30h 21m2 stops
$2,789Qantas Airways
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Mon, 22 Dec - Tue, 30 Dec
Virgin Australia Logo
21:50 - 22:59ADL-ORD
41h 39m2 stops
Virgin Australia Logo
18:32 - 17:10ORD-ADL
30h 08m2 stops
$2,793Virgin Australia
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Fri, 26 Dec - Sun, 4 Jan

Air Canada flights from Adelaide to Illinois

Our best Air Canada deals on Adelaide to Illinois flight tickets
Air Canada
8 Mar
ADL18:55Adelaide
40h 28m
2 stops
ORD19:53Chicago O'Hare Intl
11 Mar
ORD13:00Chicago O'Hare Intl
35h 50m
2 stops
ADL16:20Adelaide
$1,919
Find similar
Air Canada
8 Mar
ADL06:00Adelaide
48h 40m
3 stops
ORD14:10Chicago O'Hare Intl
11 Mar
ORD13:00Chicago O'Hare Intl
35h 50m
2 stops
ADL16:20Adelaide
$2,255
Find similar
Air Canada
15 Nov
ADL18:55Adelaide
36h 16m
2 stops
ORD14:41Chicago O'Hare Intl
15 Dec
ORD14:00Chicago O'Hare Intl
31h 25m
3 stops
ADL13:55Adelaide
$3,015
Find similar

United Airlines flights from Adelaide to Illinois

Our best United Airlines deals on Adelaide to Illinois flight tickets
United Airlines
17 Dec
ADL14:55Adelaide
25h 34m
2 stops
ORD23:59Chicago O'Hare Intl
3 Jan
ORD14:40Chicago O'Hare Intl
26h 20m
1 stop
ADL09:30Adelaide
$2,624
Find similar
United Airlines
20 Dec
ADL14:55Adelaide
23h 07m
1 stop
ORD21:32Chicago O'Hare Intl
31 Dec
ORD21:05Chicago O'Hare Intl
43h 55m
1 stop
ADL09:30Adelaide
$2,698
Find similar
United Airlines
17 Dec
ADL14:55Adelaide
24h 31m
2 stops
ORD22:56Chicago O'Hare Intl
5 Jan
ORD07:05Chicago O'Hare Intl
33h 55m
1 stop
ADL09:30Adelaide
$2,779
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Adelaide to Illinois 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 4 November 2025.
Use the filters below to find and compare flights from Adelaide to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Sat 15/11

16:10-23:07

2 stops23h 27m

Chicago O'Hare Intl

Mon 15/12

18:17-13:40

2 stops26h 53m

$1,754

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Sun 8/3

18:55-19:53

2 stops40h 28m

Chicago O'Hare Intl

Wed 11/3

13:00-16:20

2 stops35h 50m

$1,919

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Sun 8/3

07:50-12:55

2 stops45h 35m

Chicago O'Hare Intl

Wed 11/3

15:35-10:30

1 stop27h 25m

$2,246

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Sun 8/3

07:50-12:55

2 stops45h 35m

Chicago O'Hare Intl

Wed 11/3

15:35-10:30

1 stop27h 25m

$2,248

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Sat 15/11

06:00-14:25

2 stops24h 55m

Chicago O'Hare Intl

Mon 15/12

18:35-09:30

1 stop22h 25m

$2,352

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Wed 17/12

14:55-23:59

2 stops25h 34m

Chicago O'Hare Intl

Sat 3/1

14:40-09:30

1 stop26h 20m

$2,624

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Wed 17/12

12:35-23:59

2 stops27h 54m

Chicago O'Hare Intl

Tue 30/12

16:34-15:25

2 stops30h 21m

$2,639

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Sat 20/12

14:55-21:32

1 stop23h 07m

Chicago O'Hare Intl

Wed 31/12

21:05-09:30

1 stop43h 55m

$2,698

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Mon 22/12

06:25-21:09

2 stops31h 14m

Chicago O'Hare Intl

Tue 30/12

16:34-15:25

2 stops30h 21m

$2,789

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Fri 26/12

21:50-22:59

2 stops41h 39m

Chicago O'Hare Intl

Sun 4/1

18:32-17:10

2 stops30h 08m

$2,793

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Illinois from

How to get the cheapest flight ticket from Adelaide to Illinois

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 Illinois?

In general, April is the cheapest month to fly from Adelaide to Illinois. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,520. If you’re not able to fly to Illinois in April, then February is your next best option. Flight prices from Adelaide to Illinois during February average around $1,552.

What is the cheapest day to depart on your flight to Illinois?

On average, the least expensive day to fly to Illinois from Adelaide is on a Monday. momondo users have found tickets for Monday departures for as low as $2,096. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $2,293. These prices are subject to change though, so be sure to set up a Price Alert for flights to Illinois.

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

According to our data, the cheapest time of day to fly to Illinois is in the afternoon. momondo users have found flights departing from Adelaide to Illinois in the afternoon for as low as $2,230. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Illinois are more costly in the evening, with an average ticket price of $2,440. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Adelaide to Illinois flights?

You could potentially save up to 21% on your flight if you consider stops on a Adelaide to Illinois flight.

Cheap Adelaide to Illinois flight deals and tips

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

Direct flights

None
There are no direct flights from Adelaide to Illinois. There are no popular flight routes from Adelaide to Illinois.
Search flight deals

  • When did momondo last update prices for flights from Adelaide Airport to Illinois?

    Prices for flights from Adelaide Airport to Illinois were last updated today.

  • How many operators does momondo search for flights from Adelaide Airport to Illinois?

  • How old do you have to be to fly from Adelaide Airport to Illinois?

    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 Adelaide Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The travel and health documents required for your trip to Illinois 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 Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Adelaide to Illinois

Compare and see reviews for airlines that fly from Adelaide to Illinois with momondo
Airline
Rating
Free cancellation
Price
Qantas AirwaysPriceFrom $1,196Free cancellationRating
7.5
927 reviews
Search Qantas Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Adelaide to Illinois?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Adelaide to Illinois for you.

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

momondo does allow users to show only those flights to Illinois from Adelaide which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Adelaide to Illinois 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 Adelaide to Illinois right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Adelaide to Illinois now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Illinois and let you know when they change.

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