$1,215 Find Cheap Flights from Adelaide to Illinois - Compare and Save

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Adelaide to Illinois departing on 7/30. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Adelaide to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Adelaide to Illinois, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

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

Thu, Jul 30 - Thu, Aug 6
Qantas Airways Logo
6:00 am - 12:07 am
ADL
-
ORD
32h 37m
2 stops
Qantas Airways Logo
9:45 am - 9:25 am
ORD
-
ADL
33h 10m
2 stops
$1,215Qantas Airways
Tue, Jul 21 - Tue, Jul 28
Qantas Airways Logo
6:00 am - 3:59 pm
ADL
-
ORD
24h 29m
2 stops
Qantas Airways Logo
3:21 pm - 9:25 am
ORD
-
ADL
27h 34m
2 stops
$1,452Qantas Airways
Tue, Nov 3 - Sat, Nov 7
American Airlines Logo
6:25 am - 12:09 pm
ADL
-
ORD
46h 14m
2 stops
American Airlines Logo
8:45 pm - 1:00 pm
ORD
-
ADL
47h 45m
2 stops
$1,707American Airlines
Thu, Jul 2 - Sat, Jul 18
Multiple Airlines Logo
11:50 am - 9:10 pm
ADL
-
ORD
47h 50m
2 stops
Multiple Airlines Logo
12:30 am - 11:10 am
ORD
-
ADL
44h 10m
2 stops
$1,778Multiple Airlines
Tue, Jul 21 - Tue, Jul 28
Qatar Airways Logo
10:00 pm - 9:58 pm
ADL
-
ORD
38h 28m
2 stops
Qatar Airways Logo
7:20 pm - 3:00 pm
ORD
-
ADL
29h 10m
1 stop
$1,855Qatar Airways
Tue, Jul 21 - Tue, Jul 28
Qantas Airways Logo
12:40 pm - 12:07 am
ADL
-
ORD
25h 57m
2 stops
Qantas Airways Logo
7:08 pm - 11:05 am
ORD
-
ADL
25h 27m
2 stops
$1,879Qantas Airways
Tue, Aug 25 - Tue, Oct 6
Qantas Airways Logo
6:00 am - 2:54 pm
ADL
-
ORD
47h 24m
2 stops
Qantas Airways Logo
6:03 pm - 11:55 am
ORD
-
ADL
26h 22m
2 stops
$1,888Qantas Airways
Tue, Jul 21 - Tue, Jul 28
Qantas Airways Logo
6:00 am - 3:59 pm
ADL
-
ORD
24h 29m
2 stops
Qantas Airways Logo
3:21 pm - 9:25 am
ORD
-
ADL
27h 34m
2 stops
$1,916Qantas Airways
Tue, Aug 25 - Tue, Oct 6
Multiple Airlines Logo
6:55 pm - 2:36 pm
ADL
-
ORD
34h 11m
2 stops
Multiple Airlines Logo
12:59 pm - 1:55 pm
ORD
-
ADL
33h 26m
3 stops
$1,954Multiple Airlines
Tue, Jul 21 - Tue, Jul 28
Qatar Airways Logo
10:00 pm - 8:50 am
ADL
-
ORD
49h 20m
2 stops
Qatar Airways Logo
7:20 pm - 3:00 pm
ORD
-
ADL
29h 10m
1 stop
$1,964Qatar 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.

How much is a round-trip flight from Adelaide to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Adelaide to Illinois departing in July.

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 seasonApril
Cheapest flight$1,215
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 37% increase in price.
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)