Chicago Red Line Guide

The spine of the system

Run a finger down the CTA map and the Red Line is the line that looks like it's holding the rest together — because, functionally, it is. It starts at Howard on the far North Side, runs south through Wrigleyville and Lakeview, a short walk from Wrigley Field on game days, dives underground for the Loop's four subway stops, then continues south through the South Loop and Chinatown before terminating at 95th/Dan Ryan. That's roughly 22 route miles end to end — not the system's longest run (the Blue Line, at about 27 miles between O'Hare and Forest Park, holds that title) — but it consistently carries the heaviest ridership in the system — if a Chicagoan knows exactly one 'L' line's stops from memory, it's usually this one.

The route matters as much as the number of stops: this is the line that connects a Cubs game at Wrigley Field to a plate of soup dumplings in Chinatown without a single transfer, which is a genuinely rare kind of convenience for a city this size. It's also the backbone for anyone staying downtown and venturing to the North Side, since Red Line stops sit within walking distance of Lakeview's bars and restaurants as easily as they sit under State Street. If you're building a trip around a handful of North Side and Loop stops, the Red Line is very likely already doing the work.

Wrigleyville

A Red Line stop away from Wrigley Field and its rooftop clubs.

Lakeview

The Red Line neighborhood just south of Wrigleyville.

24-hour service, and who actually needs it

Red and Blue are the only two lines that never stop running, and that fact matters more than it sounds — a late flight, a graveyard shift, a 3am ride home from a blues club, or simply not wanting to plan an evening around a train schedule are all reasons this line earns its reputation as the CTA's dependable option. Overnight service runs less frequently than daytime — expect a longer wait between trains after midnight — but it does run, which the majority of the system's other six lines can't promise past evening hours. (The CTA has announced plans to extend the Orange Line to 24-hour service sometime in 2026, so Red and Blue's exclusivity here may be narrowing — check transitchicago.com for the current lineup.)

That round-the-clock reliability comes with an equally real caveat: it's also the busiest line, and rush hour, Cubs game days, and weekend nights can mean a genuinely packed platform, especially at the Loop's subway stations and near Wrigley Field. Build in extra time on those occasions rather than assuming an empty train, and keep the usual big-city awareness late at night, same as you would riding transit anywhere. Exact current fares, service frequency and any planned overnight construction work are worth a quick check at transitchicago.com before you rely on it for a specific late-night connection.

• 24-hour service, every day — the only interruption is planned maintenance work.
• Busiest line in the system — expect crowding at rush hour and on Cubs game days.
• Verify current fares and any service alerts at transitchicago.com before a late-night ride.

'L' Train Guide

The hub for all 8 lines and system basics.

Ventra Card Guide

How to pay for a Red Line ride.