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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

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Find where to fly in Illinois

These places in Illinois are popular with travellers.
Chicago
1+ stopsFrom 409 €
Peoria
1+ stopsFrom 789 €
Moline
1+ stopsFrom 801 €
Springfield
1+ stopsFrom 814 €

Flight deals to Illinois

Looking for a cheap last-minute deal or the best return flight to Illinois? If you want to travel to Illinois next month, return fares start from 458 €. Find the lowest prices on one-way and return tickets right here.
Chicago.409 € per passenger.Departing Tue, 1 Dec, returning Sat, 16 Jan.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Dublin on Tue, 1 Dec, arriving in Chicago O'Hare International.Inbound indirect flight with Icelandair, departs from Chicago O'Hare International on Sat, 16 Jan, arriving in Dublin.Price includes taxes and charges.From 409 €, select.
Peoria.789 € per passenger.Departing Sat, 23 May, returning Sat, 30 May.Return flight with WestJet and Allegiant Air.Outbound indirect flight with WestJet, departs from Dublin on Sat, 23 May, arriving in Greater Peoria.Inbound indirect flight with Allegiant Air, departs from Greater Peoria on Sat, 30 May, arriving in Dublin.Price includes taxes and charges.From 789 €, select.
Moline.801 € per passenger.Departing Sat, 25 Apr, returning Wed, 29 Apr.Return flight with American Airlines.Outbound indirect flight with American Airlines, departs from Dublin on Sat, 25 Apr, arriving in Moline.Inbound indirect flight with American Airlines, departs from Moline on Wed, 29 Apr, arriving in Dublin.Price includes taxes and charges.From 801 €, select.
Springfield.814 € per passenger.Departing Sat, 25 Apr, returning Wed, 29 Apr.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Shannon on Sat, 25 Apr, arriving in Springfield.Inbound indirect flight with British Airways, departs from Springfield on Wed, 29 Apr, arriving in Shannon.Price includes taxes and charges.From 814 €, select.
Bloomington.875 € per passenger.Departing Sat, 11 Apr, returning Sat, 25 Apr.Return flight with American Airlines.Outbound indirect flight with American Airlines, departs from Dublin on Sat, 11 Apr, arriving in Central Illinois Regional.Inbound indirect flight with American Airlines, departs from Central Illinois Regional on Sat, 25 Apr, arriving in Dublin.Price includes taxes and charges.From 875 €, select.
Marion.882 € per passenger.Departing Sun, 24 May, returning Sun, 31 May.Return flight with jetBlue and Contour Airlines.Outbound indirect flight with jetBlue, departs from Dublin on Sun, 24 May, arriving in Marion.Inbound indirect flight with Contour Airlines, departs from Marion on Sun, 31 May, arriving in Dublin.Price includes taxes and charges.From 882 €, select.
Champaign.887 € per passenger.Departing Sun, 21 Jun, returning Mon, 1 Mar.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Dublin on Sun, 21 Jun, arriving in Champaign.Inbound indirect flight with Iberia, departs from Champaign on Mon, 1 Mar, arriving in Dublin.Price includes taxes and charges.From 887 €, select.
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Flying to Illinois

The things to know before you go.
Cheapest flight found250 €, Chicago
Cheapest month to flyMay
Average flight time8 hrs, 27 mins
Cheapest airport to fly fromDublin
Most popular airlineAer Lingus

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 Dublin to Chicago O'Hare International.

Fly in December

The cheapest time to fly to Illinois is currently December.

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

Aer Lingus, Iberia, British Airways, American Airlines, Air Canada, United, Lufthansa, Brussels Airlines, Austrian Airlines and Alaska Airlines fly direct to Illinois.
Currently, Icelandair and Aer Lingus offer the cheapest flight tickets to Illinois.
We looked at upcoming return flights to Illinois departing over the next 12 months and found that Dublin Airport to Chicago O'Hare International Airport for 409 € is the best price.
The cheapest month to fly to Marion is currently May. The cheapest month to fly to Greater Peoria is currently May. The cheapest month to fly to Chicago O'Hare International is currently December. And the cheapest month to fly to Springfield is currently April.
The cheapest day to fly to Chicago O'Hare International is currently Tuesday, 1 December 2026. The cheapest day to fly to Chicago O'Hare International is currently Sunday, 1 November 2026. The cheapest day to fly to Greater Peoria is currently Saturday, 23 May 2026. And the cheapest day to fly to Moline is currently Saturday, 25 April 2026.
Dublin Airport offers direct flights to Illinois.
If you're flying from Ireland, 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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