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UM73İETT city bus line

UM73 bus: stops and timetable

Samandıra Metro – Sabiha Gökçen Havalimanı

  • 41 stops
  • ~56 min end to end
  • weekdays 05:30–23:30
  • 90 trips

UM73 bus stops

The UM73 is an İETT city bus line through Sancaktepe, Sultanbeyli, Pendik. It has 41 stops between Samandıra Metro and Sabiha Gökçen Havalimanı and takes about 42 minutes according to the planned timetable. İETT's trip records from the last 14 days (978 trips) show it usually takes 44–77 minutes (median 56; ~66 at weekday rush hour, ~46 at night).

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.

UM73 timetable: first and last bus, how often

Samandıra Metro → Sabiha Gökçen Havalimanı
DayHoursEvery
Weekdays05:30–23:3010–15 min
Saturday05:40–05:0012–15 min
Sunday06:30–00:0020–25 min
Sabiha Gökçen Havalimanı → Samandıra Metro
DayHoursEvery
Weekdays05:30–22:307–15 min
Saturday05:30–04:0012–15 min
Sunday05:40–23:00~20 min

Times are departures from the first stop. All departure times · PDF, in Turkish (357 KB)

UM73 bus route map: Samandıra Metro – Sabiha Gökçen Havalimanı, 41 stops
The UM73 route and its stops on the map (towards Sabiha Gökçen Havalimanı). Labels on the image are in Turkish.

UM73 departure times

From Samandıra Metro · Weekdays

  • 053045
  • 06001020304050
  • 07001020304050
  • 08000816A24324050
  • 0900153045
  • 10001530A45
  • 1100153045
  • 1200153045
  • 1300A15304050
  • 14001020304050
  • 15001020304050A
  • 16001020304050
  • 17001020304050
  • 180010203040A50
  • 190010203045
  • 2000153045
  • 2100A153045
  • 22002040
  • 230530

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

  • A İşaretli Sabiha Gökçen Havalimanı - S.Beyli Peronlar-Mecidiye Mah.-Samandıra Metro güzergahında hizmet verir

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

  • A İşaretli Sabiha Gökçen Havalimanı - S.Beyli Peronlar-Mecidiye Mah.-Samandıra Metro 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 UM73 to metro, tram or Metrobus?

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

Frequently asked questions

How many stops does the UM73 have?

41 stops from Samandıra Metro to Sabiha Gökçen Havalimanı, 39 in the opposite direction. The full route takes about 42 minutes according to the planned timetable. In İETT's trip records it usually takes 44–77 minutes (median 56; ~66 at weekday rush hour).

What time is the first and last UM73 bus?

On weekdays from Samandıra Metro: the first bus is at 05:30 and the last at 23:30. Sunday: first 06:30, last 00:00.

How often does the UM73 run?

On weekdays it is most frequent around 08:00, about every 9 minutes; 90 trips a day. Times are planned; traffic changes when the bus actually passes a stop.

How much is the UM73 bus?

46.20 TL full fare and 22.55 TL student fare with an Istanbulkart, whatever the distance. You pay less when you transfer from another vehicle (tariff of 20 July 2026).

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

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