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Cheap flights to Illinois

Compare Illinois flights across hundreds of providers

Find the cheapest month or even day of the year to fly

Book the best fare with no fees

Find where to fly in Illinois

These places in Illinois are popular with travellers.
Chicago
1+ stopsFrom R$ 1.021
Springfield
1+ stopsFrom R$ 2.947
Peoria
1+ stopsFrom R$ 3.065
Bloomington
1+ stopsFrom R$ 3.065

Flight deals to Illinois

Find the best prices for one-way or return flights to Illinois's most popular spots.
Chicago.R$ 1.021 per passenger.Departing Fri, 31 Jul.One-way flight with Arajet.Outbound indirect flight with Arajet, departs from Sao Paulo Guarulhos on Fri, 31 Jul, arriving in Chicago O'Hare International.Price includes taxes and charges.From R$ 1.021, select.
Springfield.R$ 2.947 per passenger.Departing Tue, 17 Mar.One-way flight with Azul Airlines.Outbound indirect flight with Azul Airlines, departs from Rio de Janeiro Internacional on Tue, 17 Mar, arriving in Springfield.Price includes taxes and charges.From R$ 2.947, select.
Peoria.R$ 3.065 per passenger.Departing Thu, 18 Jun.One-way flight with United.Outbound indirect flight with United, departs from Sao Paulo Guarulhos on Thu, 18 Jun, arriving in Greater Peoria.Price includes taxes and charges.From R$ 3.065, select.
Bloomington.R$ 3.065 per passenger.Departing Thu, 18 Jun.One-way flight with United.Outbound indirect flight with United, departs from Sao Paulo Guarulhos on Thu, 18 Jun, arriving in Central Illinois Regional.Price includes taxes and charges.From R$ 3.065, select.
Moline.R$ 3.065 per passenger.Departing Thu, 18 Jun.One-way flight with United.Outbound indirect flight with United, departs from Sao Paulo Guarulhos on Thu, 18 Jun, arriving in Moline.Price includes taxes and charges.From R$ 3.065, select.
Champaign.R$ 3.866 per passenger.Departing Fri, 10 Apr.One-way flight with American Airlines.Outbound indirect flight with American Airlines, departs from Sao Paulo Guarulhos on Fri, 10 Apr, arriving in Champaign.Price includes taxes and charges.From R$ 3.866, select.
Quincy.R$ 4.313 per passenger.Departing Fri, 10 Apr.One-way flight with Azul Airlines.Outbound indirect flight with Azul Airlines, departs from Campo Grande on Fri, 10 Apr, arriving in Quincy.Price includes taxes and charges.From R$ 4.313, select.
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Flying to Illinois

The things to know before you go.
Cheapest flight foundR$ 1.021
Cheapest month to flyJuly
Average flight time10 hrs, 40 mins
Cheapest airport to fly fromSao Paulo Guarulhos
Most popular airlineUnited

How to find cheap one-way and return flights to Illinois

Here are a few tips on how to find the best price for Illinois flights.

Simply hit 'search'

We've compared all the best online travel agents and flight providers out there to find the cheapest plane tickets to Illinois. And with us, there are no added fees – what you see is what you pay.

Fly into Chicago O'Hare International

At the moment, the lowest priced flight tickets to Illinois are from Sao Paulo Guarulhos to Chicago O'Hare International.

Fly in August

The cheapest time to fly to Illinois is currently August.

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 travel to any city you choose in Illinois.

Set up a Price Alert

We'll let you know when flight prices to Illinois go up or down so you can book when the time is just right.

Book flights to Illinois on the Skyscanner app

You can search, compare and save your favourite Illinois flights, hotel and car hire in seconds – all on the Skyscanner app for iOS or Android.

Book flight tickets to Illinois with extra peace of mind

Find flexible getaways

Keep an eye out for flexible ticket options to Illinois. If you go for a flexible plane ticket, you won’t lose out if your flight is cancelled or needs to be changed.

Book spotless stays

Check out the hotels in Illinois with sparkling 5/5 cleanliness ratings, or bag a room with free cancellation.

Get insured

Choose travel cost protection that covers against any unexpected hiccups before or during your trip. With the right travel insurance, you won’t lose out on money if your flights to Illinois are changed or cancelled or your trip is cut short.


Frequently asked questions

United and ANA (All Nippon Airways) both fly direct to Illinois.
Currently, Arajet and GOL Linhas Aéreas offer the cheapest flight tickets to Illinois.
We looked at upcoming return flights to Illinois departing over the next 12 months and found that Sao Paulo Guarulhos Airport to Chicago O'Hare International Airport for R$ 2.477 is the best price.
The cheapest month to fly to Chicago O'Hare International is currently August. The cheapest month to fly to Moline is currently June. The cheapest month to fly to Champaign is currently June. And the cheapest month to fly to Central Illinois Regional is currently June.
The cheapest day to fly to Chicago O'Hare International is currently Friday, 21 August 2026. The cheapest day to fly to Greater Peoria is currently Monday, 25 May 2026. The cheapest day to fly to Chicago O'Hare International is currently Wednesday, 29 April 2026. And the cheapest day to fly to Moline is currently Thursday, 18 June 2026.
Sao Paulo Guarulhos Airport offers direct flights to Illinois.
If you're flying from Brazil, the cheapest city in Illinois to fly into is Chicago. The cheapest airport serving Chicago at the moment is Chicago O'Hare International Airport.

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