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L21Line L21 Warsaw
Warsaw bus line L21 (ZTM Warszawa, Miasto Pruszków, KM Nowy Dwór Maz.): Konstancin-Jeziorna Mirkowska – Góra Kalwaria Rynek. Timetable, the route with every stop, operating hours and punctuality, by the timetable for Wednesday 11.11.2026.
Line L21 route and stops
Towards: Góra Kalwaria Rynek (4 trips, 30 stops)
- Konstancin-Jeziorna Mirkowska
- Konstancin-Jeziorna Południowa
- Konstancin-Jeziorna Ogrodowa
- Konstancin-Jeziorna Os. Grapa
- Konstancin-Jeziorna Od Lasu
- Obory - Pałac
- Obory
- Parcela Baczyńskiego
- Parcela I
- Parcela II
- Łyczyn
- Słomczyn Łyczyńska
- Słomczyn - Szkoła
- Słomczyn Jabłoniowa
- Cieciszew Żwirowa
- Cieciszew - Stary Kościół
- Kawęczyn Dolny
- Dębówka
- Dębówka II
- Podłęcze
- Podłęcze Wiślana
- Podłęcze II
- Wólka Dworska - Wisła
- Wólka Dworska
- Wólka Załęska
- Moczydłów Ku Słońcu
- Moczydłów
- Góra Kalwaria Wyszyńskiego
- Góra Kalwaria Pijarska
- Góra Kalwaria Rynek
Towards: Konstancin-Jeziorna Mirkowska (4 trips, 29 stops)
- Góra Kalwaria Rynek
- Góra Kalwaria Pijarska
- Góra Kalwaria Wyszyńskiego
- Moczydłów
- Moczydłów Ku Słońcu
- Wólka Załęska
- Wólka Dworska
- Wólka Dworska - Wisła
- Podłęcze II
- Podłęcze Wiślana
- Podłęcze
- Dębówka II
- Dębówka
- Kawęczyn Dolny
- Cieciszew - Stary Kościół
- Cieciszew Żwirowa
- Słomczyn Jabłoniowa
- Słomczyn - Szkoła
- Łyczyn
- Parcela II
- Parcela I
- Parcela Baczyńskiego
- Obory
- Obory - Pałac
- Konstancin-Jeziorna Od Lasu
- Konstancin-Jeziorna Os. Grapa
- Konstancin-Jeziorna Ogrodowa
- Konstancin-Jeziorna Południowa
- Konstancin-Jeziorna Mirkowska
Trips through the day
Departures of line L21 from its terminus in each hour, by the timetable for Wednesday 11.11.2026.
Line L21 punctuality
In the last 7 days 54% of line L21's measurements were on time (from a minute early to 3 minutes late). 39% were at least 3 minutes late, and the average deviation from the timetable was 3.1 min. That is worse than the city average (60% on time). Over the last 30 days the average delay was 2.8 min.
Measured every minute from live vehicle positions against the timetable.
Questions about line L21
When is the first and last trip of line L21 in Warsaw?
By the timetable for Wednesday 11.11.2026, line L21's first departure is at 08:00 and the last at 28. Other days may differ; the Wiesz Kiedy planner shows current departures.
How often does line L21 run?
At peak times line L21 runs roughly every 60 minutes each way, 8 trips a day in all.
Where is the line L21 bus right now?
On the Wiesz Kiedy live map: wieszkiedy.pl/en/app?city=warszawa&line=L21 shows every vehicle on line L21 with its direction and delay.
Is line L21 often late?
In the last 7 days 54% of line L21's measurements were on time, and 39% were at least 3 minutes late.
Other buses in Warsaw
Timetable data: ZTM Warszawa, Miasto Pruszków, KM Nowy Dwór Maz. (data sources). Wiesz Kiedy is independent and not affiliated with any operator. Updated 2026-11-11.