Cheap Flights from Adelaide Airport to Illinois from $3,211 Return

Flight deals from Adelaide Airport to Illinois

Looking for a cheap last-minute deal or the best return flight from Adelaide Airport to Illinois? If you want to travel next month, return fares start from $3,826. Find the lowest prices on one-way and return tickets right here.

Chicago.$3,211 per passenger.Departing Tue, 6 Oct, returning Mon, 19 Oct.Return flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Adelaide on Tue, 6 Oct, arriving in Chicago O'Hare International.Inbound indirect flight with Qatar Airways, departs from Chicago O'Hare International on Mon, 19 Oct, arriving in Adelaide.Price includes taxes and charges.From $3,211, select.

Moline.$5,930 per passenger.Departing Tue, 4 Aug, returning Fri, 7 Aug.Return flight with Emirates.Outbound indirect flight with Emirates, departs from Adelaide on Tue, 4 Aug, arriving in Moline.Inbound indirect flight with Emirates, departs from Moline on Fri, 7 Aug, arriving in Adelaide.Price includes taxes and charges.From $5,930, select.

Peoria.$7,830 per passenger.Departing Tue, 23 Jun, returning Tue, 18 Aug.Return flight with Qatar Airways and Emirates.Outbound indirect flight with Qatar Airways, departs from Adelaide on Tue, 23 Jun, arriving in Greater Peoria.Inbound indirect flight with Emirates, departs from Greater Peoria on Tue, 18 Aug, arriving in Adelaide.Price includes taxes and charges.From $7,830, select.

Show more deals

Flying from Adelaide Airport to Illinois

Arm yourself with these facts on the fly.

Cheapest flight found	$3,211
Cheapest month to fly	October

How to find cheap flights from Adelaide Airport to Illinois

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from Adelaide Airport to Illinois. Other savvy travellers recently found return flights from $3,211 and one-way tickets from $1,896. Ready to join them? Here are a few tips to help you do it the smart way.

Fly in October

The cheapest time to fly from Adelaide Airport to Illinois is currently October.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from Adelaide Airport to anywhere you choose in Illinois.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from Adelaide Airport to your chosen airport in Illinois go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

With us, there are no added fees – the Illinois Airport to Illinois flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

Are there any direct flights from Adelaide Airport to Illinois?

There are currently no direct flights from Adelaide Airport to Illinois, but we've found some other routes to United States – check them out now.

What is the average price of a flight from Adelaide Airport to Illinois?

We looked at all of the upcoming return flights from Adelaide Airport to Illinois we could find over the next 12 months. It looks like $3,211 is the best price. This is good, compared to the average Illinois ticket price of $5,657.

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

The cheapest month to fly from Adelaide Airport to Greater Peoria Airport is currently June.
The cheapest month to fly from Adelaide Airport to Moline Airport is currently August.
And the cheapest month to fly from Adelaide Airport to Chicago O'Hare International Airport is usually October.

Which upcoming date is cheapest to fly from Adelaide Airport to Illinois on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Adelaide Airport to Illinois on Tuesday, 6 October 2026.

If I'm flying from Adelaide Airport, where in Illinois is cheapest to fly into?

If you're flying from Adelaide, the cheapest city in Illinois to fly into is Chicago. The cheapest airport serving Chicago at the moment is Chicago O'Hare International.