Flights from Belfast to Illinois

Flight deals from Belfast to Illinois

Looking for a cheap last-minute deal or the best return flight from Belfast to Illinois? If you want to travel next month, return fares start from 9.107 SEK. Find the lowest prices on one-way and return tickets right here.

Chicago.6.924 SEK per passenger.Departing Tue, 2 Jun, returning Sat, 11 Jul.Return flight with easyJet and Allegiant Air.Outbound indirect flight with easyJet, departs from Belfast International on Tue, 2 Jun, arriving in Chicago O'Hare International.Inbound indirect flight with Allegiant Air, departs from Chicago Rockford on Sat, 11 Jul, arriving in Belfast City.Price includes taxes and charges.From 6.924 SEK, select.

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Flying from Belfast to Illinois

Arm yourself with these facts on the fly.

Cheapest flight found	6.932 SEK
Cheapest month to fly	June
Cheapest airport to fly from	Belfast International

How to find cheap flights from Belfast to Illinois

Ready to join the other savvy travellers booking the cheapest one-way and return flights to Illinois? Here are a few tips to help you do it the smart way.

Fly from Belfast International into Chicago O'Hare International

At the moment, the lowest priced flight tickets to Illinois are from Belfast International Airport to Chicago O'Hare International Airport.

Fly in June

We crunched the flight calendar and found the cheapest time to fly from Belfast to Illinois is currently June.

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 Belfast to anywhere you choose in Illinois.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from Belfast to 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 to Illinois flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

What's the average Belfast to Illinois flight price?

We looked at all of the upcoming return flights from Belfast to Illinois we could find over the next 12 months. It looks like 6.924 SEK is the best price. This is good, compared to the average Illinois ticket price of 6.932 SEK.

What is the cheapest month to fly from Belfast to Illinois?

The cheapest month to fly from Belfast to Illinois is currently June.

Which upcoming date is cheapest to fly from Belfast to Illinois on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Belfast to Illinois on Tuesday, 2 June 2026.

Are there any direct flights from Belfast to Illinois?

Currently, there aren't any direct flights from Belfast to Illinois, but you can still fly with a stopover.

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

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