$1,379 Find Cheap Flights from Adelaide to Illinois – Compare and Save

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Cheap Flights from Adelaide to Illinois

Cheapest return prices found by our users on KAYAK in the last 5 days
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Chicago
Chicago
29h 18m5 stops
from $1,448per person
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Book Cheap Adelaide to Illinois Plane Tickets

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Adelaide to Illinois

Tue, 13 Oct - Wed, 28 Oct
Air Canada Logo
06:10 - 14:43ADL  Adelaide-ORD Chicago O'Hare Intl
24h 03m2 stops Brisbane Vancouver Intl
Air Canada Logo
15:30 - 22:30ORD  Chicago O'Hare Intl-ADL Adelaide
39h 30m2 stops Vancouver Intl Brisbane
$1,448Air Canada
Tue, 13 Oct - Wed, 28 Oct
Air Canada Logo
06:10 - 14:43ADL  Adelaide-ORD Chicago O'Hare Intl
24h 03m2 stops Brisbane Vancouver Intl
Air Canada Logo
15:30 - 22:30ORD  Chicago O'Hare Intl-ADL Adelaide
39h 30m2 stops Vancouver Intl Brisbane
$1,449Air Canada
Tue, 13 Oct - Wed, 28 Oct
Air Canada Logo
20:00 - 19:48ADL  Adelaide-ORD Chicago O'Hare Intl
39h 18m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
Air Canada Logo
15:30 - 22:30ORD  Chicago O'Hare Intl-ADL Adelaide
39h 30m2 stops Vancouver Intl Brisbane
$1,464Air Canada
Thu, 5 Nov - Mon, 9 Nov
Air Canada Logo
06:10 - 19:59ADL  Adelaide-ORD Chicago O'Hare Intl
30h 19m2 stops Brisbane Vancouver Intl
Air Canada Logo
08:49 - 13:55ORD  Chicago O'Hare Intl-ADL Adelaide
36h 36m2 stops Vancouver Intl Sydney Kingsford Smith
$1,595Air Canada
Thu, 5 Nov - Mon, 9 Nov
Air Canada Logo
06:10 - 19:59ADL  Adelaide-ORD Chicago O'Hare Intl
30h 19m2 stops Brisbane Vancouver Intl
Air Canada Logo
08:49 - 13:55ORD  Chicago O'Hare Intl-ADL Adelaide
36h 36m2 stops Vancouver Intl Sydney Kingsford Smith
$1,600Air Canada
Thu, 5 Nov - Mon, 9 Nov
Air Canada Logo
06:10 - 19:59ADL  Adelaide-ORD Chicago O'Hare Intl
30h 19m2 stops Brisbane Vancouver Intl
Air Canada Logo
08:49 - 13:55ORD  Chicago O'Hare Intl-ADL Adelaide
36h 36m2 stops Vancouver Intl Sydney Kingsford Smith
$1,606Air Canada
Thu, 5 Nov - Mon, 9 Nov
Air Canada Logo
06:10 - 14:37ADL  Adelaide-ORD Chicago O'Hare Intl
24h 57m2 stops Brisbane Vancouver Intl
Air Canada Logo
08:45 - 18:10ORD  Chicago O'Hare Intl-ADL Adelaide
40h 55m3 stops Toronto Pearson Intl Vancouver Intl Sydney Kingsford Smith
$1,606Air 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?

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 return tickets is $4,485 and $3,239 respectively.

Find deals

Good to know

Low season

May

Cheapest flight

$1,379
Best time to beat the crowds (42% less expensive on average)
Most popular time to fly and prices are also 22% 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 travellers 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 return 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.

Reviews of the top airline flying from Adelaide to Illinois

 
Need help choosing which airline to fly with from Adelaide to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
Qantas AirwaysOverall score based on 1094 reviews
7.2Entertainment
7.7Boarding
7.0Food
8.1Crew
7.4Comfort
Airline reviews

Overall, it was a very good experience. I would have given it a 10/10, especially based on our flight from SFO to Melbourne. The cabin crew on that flight were wonderful and incredibly attentive. They took extra care when setting up our beds so we could sleep comfortably without being disturbed. Dinner was served promptly and smoothly. I woke up quite late, when the flight was already preparing for landing, and the crew still made sure I was taken care of. They brought me English tea in a proper cup, and when it was time to prepare the cabin for landing, they thoughtfully transferred it into a takeaway cup so I could continue enjoying it along with some breakfast. Those small, thoughtful gestures made the long flight feel much more comfortable and special. The service from the SFO to Melbourne crew was truly excellent.

8.0 ExcellentAnonymous, Aug 2026
Read more Qantas Airways reviews

Overall, it was a very good experience. I would have given it a 10/10, especially based on our flight from SFO to Melbourne. The cabin crew on that flight were wonderful and incredibly attentive. They took extra care when setting up our beds so we could sleep comfortably without being disturbed. Dinner was served promptly and smoothly. I woke up quite late, when the flight was already preparing for landing, and the crew still made sure I was taken care of. They brought me English tea in a proper cup, and when it was time to prepare the cabin for landing, they thoughtfully transferred it into a takeaway cup so I could continue enjoying it along with some breakfast. Those small, thoughtful gestures made the long flight feel much more comfortable and special. The service from the SFO to Melbourne crew was truly excellent.

Great food and good entertainment options for the long flight.

Loved the food and beverages available, spacious economy class, excellent entertainment

Very good overall. Highly recommend for all flying to Australia

Excellent as always, I won't fly to Australia, and back to the US on any other airline. The flight crew is always top notch, and have a way to make one feel extra special. Thank you for your service, I would rate Qantas Airways a 10+.

Poor! This flight was delayed 14 hours. There was no assistance in helping customers find other routes to their destination, nor any other kind of support. It was a chaotic experience. I'm not likely to fly with AA going forward.

Overall good experience with flight and airport wheelchair staff. Also got Indian food in the flights

Terrible. 6 hour delay with no explanations and only 15 dollars in food credits. A disaster. I'll just leave it at that.

It was so hot on the plane mixed with being quite turbulent and a rough landing. We all felt very nauseous for hours afterwards. Crew were lovely though.

Ease of boarding. Staff were friendly and helpful. Food was good. In flight entertainment great.

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