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303BİETT city bus line

303B bus: stops and timetable

Otogar – Marmara Cezaevi

  • 52 stops
  • ~111 min end to end
  • weekdays 06:45–19:45
  • 10 trips

303B bus stops

The 303B is an İETT city bus line through Bayrampaşa, Esenler, Bağcılar, Büyükçekmece, Silivri. It has 52 stops between Otogar and Marmara Cezaevi and takes about 191 minutes according to the planned timetable. İETT's trip records from the last 14 days (87 trips) show it usually takes 100–143 minutes (median 111; ~129 at weekday rush hour).

Minutes are the planned time from the first stop: İETT's running time for the line, spread between stops by distance; it changes with traffic. A line badge marks a rail station within 300 m of the stop. Stop pages are in Turkish.

303B timetable: first and last bus, how often

Otogar → Marmara Cezaevi
DayHoursEvery
Weekdays06:45–19:4510 trips a day
Weekend06:45–19:3050–150 min
Marmara Cezaevi → Otogar
DayHoursEvery
Weekdays05:15–17:2010 trips a day
Weekend05:30–17:2010 trips a day

Times are departures from the first stop. All departure times · PDF, in Turkish (340 KB)

303B bus route map: Otogar – Marmara Cezaevi, 52 stops
The 303B route and its stops on the map (towards Marmara Cezaevi). Labels on the image are in Turkish.

303B departure times

From Otogar · Weekdays

  • 0645
  • 0750
  • 0900
  • 1000
  • 1100
  • 1300
  • 1530
  • 1730
  • 1840A
  • 1945A

Marked departures from Otogar run a different route (İETT's note, in Turkish):

  • A Silivri Son Durak durağında biter

Marked departures from Marmara Cezaevi run a different route (İETT's note, in Turkish):

  • A Silivri Merkez - Otogar güzergahında hizmet verir

Source: departure times from İETT's line page (25 October 2026); stops and running times from the İETT planned timetable (İBB Open Data), valid 16 March 2026 – 31 December 2026. Times are departures from the first stop; when the bus passes later stops depends on traffic. Trips after midnight are listed under the previous day.

Where can you change from the 303B to metro, tram or Metrobus?

Distances are straight-line. To continue by rail, use directions.

Frequently asked questions

How many stops does the 303B have?

52 stops from Otogar to Marmara Cezaevi, 59 in the opposite direction. The full route takes about 191 minutes according to the planned timetable. In İETT's trip records it usually takes 100–143 minutes (median 111; ~129 at weekday rush hour).

What time is the first and last 303B bus?

On weekdays from Otogar: the first bus is at 06:45 and the last at 19:45. Sunday: first 06:45, last 19:30.

How often does the 303B run?

The 303B is an infrequent line: 10 trips from Otogar on weekdays, on average every 87 minutes. Check the departure times below before you go to the stop.

How much is the 303B bus?

303B is a regional line: the fare depends on where you board and get off, 46.20 TL–160.27 TL full fare with an Istanbulkart; no transfer discount (İBB Assembly decision no. 813 of 17 July 2026).

Live bus positions and İETT service announcements for this line are on the Turkish page.

Last updated: