Flights from Washington D.C. to Illinois

Flight deals from Washington D.C. to Illinois

Looking for cheap tickets from Washington D.C. to Illinois, or a last-minute trip? Find the lowest prices on one-way and return tickets right here.

Chicago.฿1,373 per passenger.Departing Mon, 20 Oct.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Baltimore Washington International on Mon, 20 Oct, arriving in Chicago Midway.Price includes taxes and charges.From ฿1,373, select.

Peoria.฿4,005 per passenger.Departing Thu, 27 Nov.One-way flight with United.Outbound indirect flight with United, departs from Baltimore Washington International on Thu, 27 Nov, arriving in Greater Peoria.Price includes taxes and charges.From ฿4,005, select.

Moline.฿5,447 per passenger.Departing Mon, 20 Oct.One-way flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Baltimore Washington International on Mon, 20 Oct, arriving in Moline.Price includes taxes and charges.From ฿5,447, select.

Bloomington.฿5,969 per passenger.Departing Thu, 13 Nov.One-way flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Thu, 13 Nov, arriving in Central Illinois Regional.Price includes taxes and charges.From ฿5,969, select.

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Flying from Washington D.C. to Illinois

Arm yourself with these facts on the fly.

Cheapest flight found	฿1,373
Cheapest month to fly	October
Average flight time	2 hrs, 11 mins
Cheapest airport to fly from	Baltimore Washington International
Most popular airline	American Airlines

How to find cheap flights from Washington D.C. to Illinois

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from Washington D.C. to Illinois. Other savvy travellers recently found return flights from ฿2,840 and one-way tickets from ฿1,373 one-way. Ready to join them? Here are a few tips to help you do it the smart way.

Fly from Baltimore Washington International into Chicago Midway

At the moment, the lowest priced flight tickets to Illinois are from Baltimore Washington International Airport to Chicago Midway Airport.

Fly in October

We crunched the flight calendar and found the cheapest time to fly from Washington D.C. to Illinois is currently October.

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 Washington D.C. to anywhere you choose in Illinois.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from Washington D.C. 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 Washington D.C. to Illinois flight price?

We looked at all of the upcoming return flights from Washington D.C. to Illinois we could find over the next 12 months. It looks like ฿2,840 is the best price. This is good, compared to the average Illinois ticket price of ฿9,808.

What is the cheapest month to fly from Washington D.C. to Illinois?

The cheapest month to fly from Washington D.C. to Greater Peoria Airport is usually January. The cheapest month to fly from Washington D.C. to Moline Airport is usually November. The cheapest month to fly from Washington D.C. to Central Illinois Regional Airport is usually October. And the cheapest month to fly from Washington D.C. to Chicago Midway Airport is usually October.

Which upcoming date is cheapest to fly from Washington D.C. to Illinois on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington D.C. to Illinois on Saturday, 25 October 2025.

Are there any direct flights from Washington D.C. to Illinois?

Baltimore Washington International Airport offers direct flights to Illinois.

If I'm flying from Washington D.C., where in Illinois is cheapest to fly into?

If you're flying from Washington D.C., the cheapest city in Illinois to fly into is Chicago. The cheapest airport serving Chicago at the moment is Chicago Midway.