Flights from Washington, D.C. to Illinois

Flight deals from Washington, D.C. to Illinois

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

Flying from Washington, D.C. to Illinois

Arm yourself with these facts on the fly.
Cheapest flight foundC$45, Chicago
Cheapest month to flySeptember
Average flight time2 hrs, 10 mins
Cheapest airport to fly fromBaltimore Washington International
Most popular airlineSouthwest Airlines

Frequently asked questions

We looked at all of the upcoming round-trip flights from Washington, D.C. to Illinois we could find over the next 12 months. It looks like C$79 is the best price. This is good, compared to the average Illinois ticket price of C$338.
The cheapest month to fly from Washington, D.C. to Decatur Airport is usually June. The cheapest month to fly from Washington, D.C. to Central Illinois Regional Airport is usually July. The cheapest month to fly from Washington, D.C. to Moline Airport is usually July. And the cheapest month to fly from Washington, D.C. to Chicago Midway Airport is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington, D.C. to Illinois on Wednesday, September 25, 2024.
Baltimore Washington International Airport offers direct flights to Illinois.
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.
The average flight time between Washington, D.C. and Illinois is 2 hours and 9 minutes.
Most popular flights