Blue Line ‘L’
The CTA Blue Line provides 24-hour rapid transit train service between Chicago-O'Hare International Airport and the Forest Park terminal, via downtown Chicago.
On this page:
Hours of operation
|Between O'Hare & Forest Park
(via downtown subway)
|O'Hare to Forest Park
Service at all times, every day
|Forest Park to O'Hare
A note about 'L' service
Some service may be running w/delays: Staff availability is affected by COVID but we're running as much service as possible—wait times may be longer-than-usual.
No overnight train departures from O’Hare station
No Forest Park-bound Blue Line trains O'Hare-Rosemont, midnight to 4am, nightly. Trains still run to O'Hare stn & rest of line 24/7 + bus O'Hare-Rosemont avail.
RSS Feed: Blue Line Alerts
with stations & connection information
This diagram represents the order of stops along this route (not the route's natural geography).
Click a station name for more information, including detailed transfer information, a map, alerts for that station and detailed station timetables.