Bus - 421

Torcy RER Line

RATP

RATP 421 bus Route Schedule and Stops (Updated)

The 421 bus (Torcy RER) has 18 stops departing from Gare D'Emerainville Pontault-Combault RER and ending at Torcy RER.

Choose any of the 421 bus stops below to find updated real-time schedules and to see their route map.

Direction: Torcy RER (18 stops)

  • Gare D'Emerainville Pontault-Combault RER

  • Le Parc

  • Mairie

  • Rue D'Emery

  • Beaubourg

  • Les Mines

  • Ambroise Croizat

  • Cours du Buisson

  • Les Vieilles Vignes

  • Caravelle

  • Table D'Orientation

  • Henri Aubry

  • Lions de Beaubourg

  • Les Platanes

  • Etang de Croissy

  • Anne Frank

  • Lycée Jean Moulin

  • Torcy RER

421 FAQ

  • What time does the 421 bus start operating?

    Services on the 421 bus start at 05:40 on Saturday.

  • What time does the 421 bus stop working?

    Services on the 421 bus stop at 21:30 on Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday.

  • What time does the 421 bus arrive?

    When does the Torcy RER Bus line come? Check Live Arrival Times for live arrival times and to see the full schedule for the Torcy RER Bus line that is closest to your location.

  • How much is the 421 (Torcy RER) bus fare?

    The Torcy RER (Torcy RER) bus fare is about €2.15.

  • Does the RATP 421 bus line run on Whit Monday?

    The 421 bus's operating hours on Whit Monday may change. Check the Moovit app for latest changes and live updates.

  • Is there a 421 bus stop near me?

    Click here to view the nearest 421 bus stop.

RATP 421 bus Route Map - Torcy RER

421 bus Line Map
PDF Version: 421 schedule, stops and map421 - Torcy RER timetable

421 bus Schedule

421 bus route operates everyday. Regular schedule hours: 06:44 - 21:30

DayOperating HoursFrequency (min)
Sun06:55 - 21:3060 - 75
Mon06:44 - 21:3042
Tue06:44 - 21:3042
Wed06:44 - 21:3042
Thu06:44 - 21:3042
Fri06:44 - 21:3042
Sat05:40 - 21:3040 - 47

RATP bus Service Alerts

See all updates on 421 (from Gare D'Emerainville Pontault-Combault RER), including real-time status info, bus delays, changes of routes, changes of stops locations, and any other service changes. Get a real-time map view of 421 (Torcy RER) and track the bus as it moves on the map. Download the app for all RATP info now.

421 line bus fare

RATP 421 (Torcy RER) ride fare is about €2.15. Prices may change based on several factors. For more information about RATP’s ticket costs, please check the Moovit app or RATP’s official website.

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421 (RATP)

The first stop of the 421 bus route is Gare D'Emerainville Pontault-Combault RER and the last stop is Torcy RER. 421 (Torcy RER) is operational during everyday.

Additional information: 421 has 18 stops and the total trip duration for this route is approximately 17 minutes.

On the go? See why over 1.5 million users trust Moovit as the best public transit app. Moovit gives you RATP suggested routes, real-time bus tracker, live directions, line route maps in Paris, and helps to find the closest 421 bus stops near you. No internet available? Download an offline PDF map and bus schedule for the 421 bus to take on your trip.

Line 421 Real Time Bus Tracker

Track line 421 (Torcy RER) on a live map in real time and follow its location as it moves between stations. Use Moovit as a line 421 bus tracker or a live RATP bus tracker app and never miss your bus.

Use the app as a trip planner for RATP or a trip planner for Metro, RER, Bus, Train, Light Rail or Funicular to plan your route around Paris. The trip planner shows updated data for RATP and any bus, including line 421, in Paris

421 - Alternative Directions

RATP Lines in Paris

Follow the LIVE location of line 421
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