- From
- Aeropuerto T4 station, platform level -1
- To
- Madrid Chamartín-Clara Campoamor, the terminus almost every C1 train actually reaches
- Luggage
- An ordinary Cercanías carriage; no racks, no hold.
- Runs
- 05:57–23:27
- Journey
- 15–16 min
It is a shuttle for all but a couple of early departures: Aeropuerto T4 to Chamartín and back, and nowhere else. For Atocha or the centre proper, change at Chamartín onto another Cercanías line.
The EUR 1.70 fare is reasoned from the line's own zone data, not stated outright for this route — CRTM's diagram marks T4 with an unpriced "special airport fare" that may yet turn out to differ.
Aena's own page still describes C1 running through to Príncipe Pío and Atocha. It is not wrong, only describing the rare pattern: 60 of 4,320 scheduled trips in Renfe's own September 2026 timetable go that far: the rest turn back at Chamartín.
For Puerta del Sol itself, this only gets you as far as Chamartín — change there for the metro or another Cercanías line, or take the direct metro chain instead.
Cercanías C1: price for every party size
See the C1 line on Renfe