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Cheap flights to Illinois

Compare Illinois flights across hundreds of providers

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Find where to fly in Illinois

These places in Illinois are popular with travellers.
Chicago
1+ stopsFrom £389
Quincy
1+ stopsFrom £658
Moline
1+ stopsFrom £717
Peoria
1+ stopsFrom £730

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 £443. Find the lowest prices on one-way and return tickets right here.
Chicago.£389 per passenger.Departing Thu, 23 Apr, returning Mon, 27 Apr.Return flight with Ryanair and Icelandair.Outbound indirect flight with Ryanair, departs from London Stansted on Thu, 23 Apr, arriving in Chicago O'Hare International.Inbound indirect flight with Icelandair, departs from Chicago O'Hare International on Mon, 27 Apr, arriving in London Stansted.Price includes taxes and charges.From £389, select.
Quincy.£658 per passenger.Departing Thu, 21 May, returning Thu, 28 May.Return flight with Ryanair and Contour Airlines.Outbound indirect flight with Ryanair, departs from London Stansted on Thu, 21 May, arriving in Quincy.Inbound indirect flight with Contour Airlines, departs from Quincy on Thu, 28 May, arriving in London Luton.Price includes taxes and charges.From £658, select.
Moline.£717 per passenger.Departing Thu, 28 May, returning Wed, 10 Jun.Return flight with easyJet and Allegiant Air.Outbound indirect flight with easyJet, departs from London Luton on Thu, 28 May, arriving in Moline.Inbound indirect flight with Allegiant Air, departs from Moline on Wed, 10 Jun, arriving in London Stansted.Price includes taxes and charges.From £717, select.
Peoria.£730 per passenger.Departing Sat, 2 May, returning Sat, 9 May.Return flight with Ryanair and Allegiant Air.Outbound indirect flight with Ryanair, departs from London Stansted on Sat, 2 May, arriving in Greater Peoria.Inbound indirect flight with Allegiant Air, departs from Greater Peoria on Sat, 9 May, arriving in London Gatwick.Price includes taxes and charges.From £730, select.
Springfield.£871 per passenger.Departing Wed, 6 May, returning Mon, 11 May.Return flight with Finnair.Outbound indirect flight with Finnair, departs from London Heathrow on Wed, 6 May, arriving in Springfield.Inbound indirect flight with Finnair, departs from Springfield on Mon, 11 May, arriving in London Heathrow.Price includes taxes and charges.From £871, select.
Marion.£890 per passenger.Departing Sat, 23 May, returning Sat, 30 May.Return flight with jetBlue and Contour Airlines.Outbound indirect flight with jetBlue, departs from London Gatwick on Sat, 23 May, arriving in Marion.Inbound indirect flight with Contour Airlines, departs from Marion on Sat, 30 May, arriving in London Heathrow.Price includes taxes and charges.From £890, select.
Champaign.£939 per passenger.Departing Fri, 2 Oct, returning Mon, 5 Oct.Return flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Fri, 2 Oct, arriving in Champaign.Inbound indirect flight with British Airways, departs from Champaign on Mon, 5 Oct, arriving in London Heathrow.Price includes taxes and charges.From £939, select.
Bloomington.£1,000 per passenger.Departing Thu, 21 May, returning Thu, 28 May.Return flight with Lufthansa and Allegiant Air.Outbound indirect flight with Lufthansa, departs from London Heathrow on Thu, 21 May, arriving in Central Illinois Regional.Inbound indirect flight with Allegiant Air, departs from Central Illinois Regional on Thu, 28 May, arriving in London Stansted.Price includes taxes and charges.From £1,000, select.
Decatur.£1,113 per passenger.Departing Fri, 22 May, returning Fri, 29 May.Return flight with United.Outbound indirect flight with United, departs from London Heathrow on Fri, 22 May, arriving in Decatur.Inbound indirect flight with United, departs from Decatur on Fri, 29 May, arriving in London Heathrow.Price includes taxes and charges.From £1,113, select.
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Flying to Illinois

The things to know before you go.
Cheapest flight found£247, Chicago
Cheapest month to flyMay
Average flight time8 hrs, 47 mins
Cheapest airport to fly fromManchester
Most popular airlineBritish Airways

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 London Stansted to Chicago O'Hare International.

Fly in April

The cheapest time to fly to Illinois is currently April.

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

British Airways, Alaska Airlines, American Airlines, Iberia, Finnair, Air Canada, Lufthansa, United, Gulf Air and Brussels Airlines fly direct to Illinois.
Currently, Ryanair and British Airways offer the cheapest flight tickets to Illinois.
We looked at upcoming return flights to Illinois departing over the next 12 months and found that London Stansted Airport to Chicago O'Hare International Airport for £391 is the best price.
The cheapest month to fly to Quincy is currently May. The cheapest month to fly to Moline is currently May. The cheapest month to fly to Chicago O'Hare International is currently April. And the cheapest month to fly to Springfield is currently May.
The cheapest day to fly to Chicago O'Hare International is currently Thursday, 23 April 2026. The cheapest day to fly to Chicago O'Hare International is currently Wednesday, 2 December 2026. The cheapest day to fly to Quincy is currently Thursday, 21 May 2026. And the cheapest day to fly to Moline is currently Thursday, 28 May 2026.
London Heathrow Airport offers direct flights to Illinois.
If you're flying from United Kingdom, 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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