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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 389 €
Peoria
1+ stopsFrom 723 €
Bloomington
1+ stopsFrom 851 €

Flight deals to Illinois

Find the best prices for one-way or return flights to Illinois's most popular spots.
Chicago.389 € per passenger.Departing Thu, 5 Nov, returning Sun, 8 Nov.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Dublin on Thu, 5 Nov, arriving in Chicago O'Hare International.Inbound indirect flight with Scandinavian Airlines, departs from Chicago O'Hare International on Sun, 8 Nov, arriving in Dublin.Price includes taxes and charges.From 389 €, select.
Peoria.723 € per passenger.Departing Mon, 27 Apr, returning Mon, 4 May.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Cork on Mon, 27 Apr, arriving in Greater Peoria.Inbound indirect flight with British Airways, departs from Greater Peoria on Mon, 4 May, arriving in Cork.Price includes taxes and charges.From 723 €, select.
Bloomington.851 € 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 851 €, select.
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Flying to Illinois

The things to know before you go.
Cheapest flight found389 €
Cheapest month to flyNovember
Average flight time8 hrs, 28 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 November

The cheapest time to fly to Illinois is currently November.

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, Scandinavian Airlines 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 389 € is the best price.
The cheapest month to fly to Greater Peoria is currently April. The cheapest month to fly to Chicago O'Hare International is currently November. And the cheapest month to fly to Central Illinois Regional is currently April.
The cheapest day to fly to Chicago O'Hare International is currently Thursday, 5 November 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 Monday, 27 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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