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Alerts by route
Boarding change, delays between Harlem (O’Hare branch) and O'HarePlanned Work
Affects Train Tracker estimations (
What's this?)
Blue Line trains in both directions will operate on the same track between Harlem (O’Hare branch) and O'Hare, resulting in minor delays.
Wed, Sep 9 2026 10:00 PM to Thu, Sep 10 2026 4:00 AM
Boarding change, delays between Harlem (O’Hare branch) and O'HarePlanned Work
Affects Train Tracker estimations (
What's this?)
Blue Line trains in both directions will operate on the same track between O'Hare and Harlem (O’Hare branch), resulting in minor delays.
Thu, Sep 10 2026 10:00 PM to Fri, Sep 11 2026 4:00 AM
Bus Substitution Between Illinois Medical District and UIC-HalstedPlanned Work
Affects Train Tracker estimations (
What's this?)
Shuttle buses will replace Blue Line rail service between Illinois Medical District and UIC-Halsted.
Fri, Sep 11 2026 10:00 PM to Mon, Sep 14 2026 4:00 AM