$1,152 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 8/12. 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

Wed, Aug 12 - Wed, Aug 19
Multiple Airlines Logo
7:15 am - 7:42 pm
ADL
-
ORD
26h 57m
2 stops
Multiple Airlines Logo
3:54 pm - 8:00 am
ORD
-
ADL
25h 36m
2 stops
$1,152Multiple Airlines
Mon, Aug 17 - Fri, Sep 4
Qantas Airways Logo
6:00 am - 3:54 pm
ADL
-
ORD
24h 24m
2 stops
Qantas Airways Logo
3:22 pm - 9:25 am
ORD
-
ADL
27h 33m
2 stops
$1,160Qantas Airways
Thu, Aug 13 - Thu, Aug 20
Qantas Airways Logo
6:00 am - 4:51 pm
ADL
-
ORD
25h 21m
2 stops
Qantas Airways Logo
5:16 pm - 9:25 am
ORD
-
ADL
25h 39m
2 stops
$1,164Qantas Airways
Wed, Aug 5 - Thu, Sep 17
Qantas Airways Logo
7:50 am - 7:42 pm
ADL
-
ORD
26h 22m
2 stops
Qantas Airways Logo
3:20 pm - 11:15 am
ORD
-
ADL
29h 25m
2 stops
$1,222Qantas Airways
Sat, Aug 8 - Wed, Sep 16
Qantas Airways Logo
6:00 am - 12:01 am
ADL
-
ORD
32h 31m
2 stops
Qantas Airways Logo
9:10 pm - 7:00 pm
ORD
-
ADL
55h 20m
2 stops
$1,242Qantas Airways
Fri, Aug 14 - Fri, Aug 21
Qantas Airways Logo
6:00 am - 11:30 pm
ADL
-
ORD
32h 00m
2 stops
Qantas Airways Logo
9:06 pm - 11:15 am
ORD
-
ADL
47h 39m
2 stops
$1,256Qantas Airways
Tue, Sep 1 - Tue, Sep 8
Cathay Pacific Logo
7:45 pm - 2:20 pm
ADL
-
ORD
57h 05m
2 stops
Cathay Pacific Logo
4:00 pm - 5:45 pm
ORD
-
ADL
59h 15m
2 stops
$1,532Cathay Pacific
Fri, Aug 7 - Wed, Sep 16
Qantas Airways Logo
6:00 am - 11:30 pm
ADL
-
ORD
32h 00m
2 stops
Qantas Airways Logo
7:03 pm - 11:05 am
ORD
-
ADL
25h 32m
2 stops
$1,549Qantas Airways
Wed, Aug 5 - Sun, Sep 13
Qantas Airways Logo
7:50 am - 7:42 pm
ADL
-
ORD
26h 22m
2 stops
Qantas Airways Logo
7:03 pm - 4:25 pm
ORD
-
ADL
30h 52m
2 stops
$1,583Qantas Airways
Wed, Aug 5 - Fri, Sep 18
Qantas Airways Logo
10:10 am - 7:42 pm
ADL
-
ORD
24h 02m
2 stops
Qantas Airways Logo
7:03 pm - 11:05 am
ORD
-
ADL
25h 32m
2 stops
$1,632Qantas 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 May and December, when the average cost of round-trip tickets is $3,216 and $2,323 respectively.

Find deals

Good to know

Low season

May

Cheapest flight

$1,152
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly and prices are also 10% 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)