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
| |
Weekdays
|
Sat.
|
Sun./Hol.
|
Between O'Hare & Forest Park
(via downtown subway) |
| O'Hare to Forest Park |
Service at all times, every day
|
| Forest Park to O'Hare |
Timetables


Four-car trains return on summer weekends Service Change
Every weekend starting early on June 6, Blue, Brown, Orange Line trains will be reduced to 4-car lengths 3:30am Saturday to 3:30am Monday.
RSS Feed: Blue Line Alerts
Route diagram
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.