$1,116 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 9/18. 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

Fri, Sep 18 - Thu, Sep 24
Air Canada Logo
8:00 pm - 2:43 pmADL  Adelaide-ORD Chicago O'Hare Intl
33h 13m2 stops Sydney Kingsford Smith Vancouver Intl
Air Canada Logo
7:45 pm - 6:10 pmORD  Chicago O'Hare Intl-ADL Adelaide
31h 55m2 stops Vancouver Intl Brisbane
$1,116Air Canada
Wed, Sep 9 - Sun, Sep 20
Air Canada Logo
8:00 pm - 2:43 pmADL  Adelaide-ORD Chicago O'Hare Intl
33h 13m2 stops Sydney Kingsford Smith Vancouver Intl
Air Canada Logo
3:40 pm - 11:50 amORD  Chicago O'Hare Intl-ADL Adelaide
29h 40m2 stops Vancouver Intl Sydney Kingsford Smith
$1,144Air Canada
Wed, Sep 9 - Sun, Sep 20
Air Canada Logo
8:00 pm - 10:05 pmADL  Adelaide-ORD Chicago O'Hare Intl
40h 35m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
Air Canada Logo
3:40 pm - 11:50 amORD  Chicago O'Hare Intl-ADL Adelaide
29h 40m2 stops Vancouver Intl Sydney Kingsford Smith
$1,152Air Canada
Fri, Sep 18 - Thu, Sep 24
Multiple Airlines Logo
7:35 pm - 2:43 pmADL  Adelaide-ORD Chicago O'Hare Intl
33h 38m2 stops Sydney Kingsford Smith Vancouver Intl
Multiple Airlines Logo
2:15 pm - 10:00 pmORD  Chicago O'Hare Intl-ADL Adelaide
41h 15m3 stops Toronto Pearson Intl Vancouver Intl Sydney Kingsford Smith
$1,208Multiple Airlines
Wed, Sep 9 - Sun, Sep 20
Cathay Pacific Logo
8:50 am - 2:20 pmADL  Adelaide-ORD Chicago O'Hare Intl
44h 00m2 stops Sydney Kingsford Smith Hong Kong Intl
Cathay Pacific Logo
4:15 pm - 9:25 amORD  Chicago O'Hare Intl-ADL Adelaide
50h 40m2 stops Hong Kong Intl Melbourne
$1,529Cathay Pacific
Wed, Sep 9 - Sun, Sep 20
Air New Zealand Logo
12:05 pm - 5:01 amADL  Adelaide-ORD Chicago O'Hare Intl
31h 26m2 stops Auckland Intl San Francisco
Air New Zealand Logo
4:40 pm - 10:55 amORD  Chicago O'Hare Intl-ADL Adelaide
27h 45m2 stops Los Angeles Auckland Intl
$1,583Air New Zealand
Wed, Sep 9 - Sun, Sep 20
Air New Zealand Logo
12:05 pm - 12:59 amADL  Adelaide-ORD Chicago O'Hare Intl
27h 24m2 stops Auckland Intl San Francisco
Air New Zealand Logo
3:48 pm - 10:55 amORD  Chicago O'Hare Intl-ADL Adelaide
28h 37m2 stops Los Angeles Auckland Intl
$1,593Air New Zealand
Mon, Sep 14 - Mon, Sep 21
Cathay Pacific Logo
2:25 pm - 1:55 pmADL  Adelaide-ORD Chicago O'Hare Intl
62h 00m2 stops Sydney Kingsford Smith Hong Kong Intl
Cathay Pacific Logo
4:15 pm - 9:25 amORD  Chicago O'Hare Intl-ADL Adelaide
50h 40m2 stops Hong Kong Intl Melbourne
$1,616Cathay Pacific
Wed, Sep 9 - Sun, Sep 20
Air Canada Logo
8:00 pm - 7:48 pmADL  Adelaide-ORD Chicago O'Hare Intl
38h 18m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
Air Canada Logo
12:59 pm - 11:50 amORD  Chicago O'Hare Intl-ADL Adelaide
32h 21m3 stops Toronto Pearson Intl Vancouver Intl Sydney Kingsford Smith
$1,618Air Canada
Fri, Sep 18 - Thu, Sep 24
Air Canada Logo
7:00 pm - 6:51 pmADL  Adelaide-ORD Chicago O'Hare Intl
38h 21m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
Air Canada Logo
10:43 am - 1:55 pmORD  Chicago O'Hare Intl-ADL Adelaide
36h 42m3 stops Toronto Pearson Intl Vancouver Intl Sydney Kingsford Smith
$1,635Air Canada
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

$1,116
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly and prices are also 11% 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)