$852 Find Cheap Flights from Adelaide to Illinois - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Adelaide to Illinois departing on 9/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Book Cheap Adelaide to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Adelaide to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Adelaide to Illinois

Tue, Jul 21 - Thu, Jul 30
Qantas Airways Logo
6:00 am - 8:08 pm
ADL
-
ORD
28h 38m
2 stops
Qantas Airways Logo
3:21 pm - 9:25 am
ORD
-
ADL
27h 34m
2 stops
$1,158Qantas Airways
Mon, Aug 17 - Mon, Aug 24
Qantas Airways Logo
6:00 am - 3:54 pm
ADL
-
ORD
24h 24m
2 stops
Qantas Airways Logo
5:16 pm - 9:25 am
ORD
-
ADL
25h 39m
2 stops
$1,163Qantas Airways
Wed, Aug 5 - Wed, Aug 12
Qantas Airways Logo
6:00 am - 3:54 pm
ADL
-
ORD
24h 24m
2 stops
Qantas Airways Logo
9:06 pm - 9:25 am
ORD
-
ADL
45h 49m
2 stops
$1,168Qantas Airways
Mon, Aug 3 - Sun, Aug 23
Qantas Airways Logo
10:10 am - 7:44 pm
ADL
-
ORD
24h 04m
2 stops
Qantas Airways Logo
5:50 pm - 9:25 am
ORD
-
ADL
49h 05m
2 stops
$1,169Qantas Airways
Sat, Aug 15 - Sat, Aug 22
Qantas Airways Logo
6:00 am - 11:00 pm
ADL
-
ORD
31h 30m
2 stops
Qantas Airways Logo
5:16 pm - 1:35 pm
ORD
-
ADL
29h 49m
2 stops
$1,176Qantas Airways
Sat, Aug 15 - Sat, Aug 22
Qantas Airways Logo
6:00 am - 7:59 pm
ADL
-
ORD
28h 29m
2 stops
Qantas Airways Logo
5:16 pm - 1:35 pm
ORD
-
ADL
29h 49m
2 stops
$1,186Qantas Airways
Thu, Jul 23 - Thu, Jul 30
Qantas Airways Logo
6:00 am - 8:08 pm
ADL
-
ORD
28h 38m
2 stops
Qantas Airways Logo
3:21 pm - 9:25 am
ORD
-
ADL
27h 34m
2 stops
$1,201Qantas Airways
Sat, Jul 25 - Fri, Aug 7
Qantas Airways Logo
6:00 am - 12:12 am
ADL
-
ORD
32h 42m
2 stops
Qantas Airways Logo
5:16 pm - 11:15 am
ORD
-
ADL
27h 29m
2 stops
$1,203Qantas Airways
Wed, Nov 4 - Wed, Nov 11
Air New Zealand Logo
12:05 pm - 12:58 am
ADL
-
ORD
29h 23m
2 stops
Air New Zealand Logo
2:00 pm - 10:55 am
ORD
-
ADL
28h 25m
2 stops
$1,305Air New Zealand
Mon, Aug 31 - Mon, Sep 7
Qantas Airways Logo
10:10 am - 7:42 pm
ADL
-
ORD
24h 02m
2 stops
Qantas Airways Logo
3:54 pm - 9:25 am
ORD
-
ADL
27h 01m
2 stops
$1,488Qantas Airways
Booking Insights

KAYAK's insights & trends for Adelaide to Illinois flights

Get data-powered insights and trends into flights from Adelaide to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Adelaide to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Adelaide to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Adelaide to Illinois is February, when tickets cost $0 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,426 and $1,248 respectively.

Find deals

Good to know

Low seasonMay
Cheapest flight$852
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Adelaide to Chicago

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Adelaide to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Adelaide to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Adelaide to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Adelaide to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Adelaide to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Adelaide to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Adelaide to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Adelaide to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Adelaide to Illinois

Information on your arrival and departure airports

Adelaide (ADL)