MetroFlow

İETT bus · scheduled timetable · last checked: 7 November 2026

401 Bus Timetable

Çatalca – I.Ü. Cerrahpaşa Avc. Kamp.

Line 401: Çatalca – I.Ü. Cerrahpaşa Avc. Kamp. — 98 stops. On weekdays, from Çatalca to I.Ü. Cerrahpaşa Avc. Kamp. the first bus leaves at 04:30 and the last at 23:00 — 178 departures a day, roughly every 5 minutes during the day. On weekdays, from I.Ü. Cerrahpaşa Avc. Kamp. to Çatalca the first bus leaves at 05:50 and the last at 00:20 — 178 departures a day, roughly every 6 minutes during the day.

Fare: ₺46.20 full · ₺22.55 student · tariff since 20 July 2026

Çatalca → I.Ü. Cerrahpaşa Avc. Kamp. Outbound

Weekdays 178 departures · first 04:30 · last 23:00 · daytime every ~5 min

0404:30 04:40 04:50
0505:00 05:10 05:20 05:28 05:36 05:44 05:52
0606:00 06:02 06:07 06:14 06:21 06:28 06:32 06:35 06:42 06:49 06:55
0707:00 07:02 07:04 07:08 07:12 07:16 07:20 07:22 07:24 07:28 07:32 07:36 07:40 07:42 07:44 07:48 07:52 07:56
0808:00 08:02 08:04 08:08 08:12 08:16 08:20 08:25 08:30 08:32 08:35 08:40 08:45 08:50 08:55
0909:00 09:06 09:12 09:18 09:24 09:30 09:36 09:42 09:48 09:54
1010:00 10:06 10:12 10:18 10:24 10:30 10:36 10:42 10:48 10:54
1111:00 11:06 11:12 11:18 11:24 11:30 11:36 11:42 11:48 11:54
1212:00 12:06 12:12 12:18 12:24 12:30 12:36 12:42 12:48 12:54
1313:00 13:06 13:12 13:18 13:24 13:30 13:35 13:40 13:45 13:50 13:55
1414:00 14:06 14:12 14:18 14:24 14:30 14:35 14:40 14:45 14:50 14:55
1515:00 15:05 15:10 15:15 15:20 15:25 15:30 15:35 15:40 15:45 15:50 15:55
1616:00 16:06 16:12 16:18 16:24 16:30 16:35 16:40 16:45 16:50 16:55
1717:00 17:05 17:10 17:15 17:20 17:25 17:30 17:35 17:40 17:45 17:50 17:55
1818:02 18:09 18:16 18:23 18:30 18:37 18:44 18:53
1919:00 19:07 19:14 19:21 19:28 19:36 19:44 19:52
2020:00 20:10 20:20 20:30 20:45
2121:00 21:20 21:40
2222:00 22:30
2323:00
How often?
05–077 min apart
07–10 morning4 min apart
10–16 midday6 min apart
16–19 evening5 min apart
19–228 min apart
22–05 night30 min apart

Saturday 178 departures · first 04:30 · last 23:00 · daytime every ~5 min

0404:30 04:40 04:50
0505:00 05:10 05:20 05:28 05:36 05:44 05:52
0606:00 06:02 06:07 06:14 06:21 06:28 06:32 06:34 06:40 06:45 06:50 06:55
0707:02 07:04 07:08 07:12 07:16 07:20 07:22 07:24 07:28 07:32 07:36 07:40 07:42 07:44 07:48 07:52 07:56
0808:00 08:02 08:04 08:08 08:12 08:16 08:20 08:25 08:30 08:32 08:35 08:40 08:45 08:50 08:55
0909:00 09:05 09:10 09:15 09:20 09:25 09:30 09:36 09:42 09:48 09:54
1010:00 10:10 10:18 10:24 10:30 10:36 10:42 10:48 10:54
1111:00 11:06 11:12 11:18 11:24 11:30 11:36 11:42 11:48 11:54
1212:00 12:06 12:12 12:18 12:24 12:30 12:36 12:42 12:48 12:54
1313:00 13:06 13:12 13:18 13:24 13:30 13:35 13:40 13:45 13:50 13:55
1414:00 14:06 14:12 14:18 14:24 14:30 14:35 14:45 14:50 14:55
1515:00 15:05 15:10 15:15 15:20 15:25 15:30 15:35 15:40 15:45 15:50 15:55
1616:00 16:05 16:10 16:15 16:20 16:25 16:30 16:35 16:40 16:45 16:50 16:55
1717:00 17:05 17:10 17:15 17:20 17:25 17:30 17:35 17:40 17:45 17:50 17:55
1818:02 18:09 18:16 18:26 18:34 18:42 18:48 18:54
1919:00 19:07 19:14 19:21 19:28 19:36 19:44 19:52
2020:00 20:10 20:20 20:30 20:45
2121:00 21:20 21:40
2222:00 22:30
2323:00
How often?
05–077 min apart
07–10 morning4 min apart
10–16 midday6 min apart
16–19 evening5 min apart
19–228 min apart
22–05 night30 min apart

Sunday 175 departures · first 05:00 · last 23:00 · daytime every ~5 min

0505:00 05:10 05:20 05:28 05:36 05:44 05:52
0606:00 06:02 06:07 06:14 06:21 06:28 06:32 06:34 06:40 06:45 06:50 06:55
0707:02 07:04 07:08 07:12 07:16 07:20 07:22 07:24 07:28 07:32 07:36 07:40 07:42 07:44 07:48 07:52 07:56
0808:00 08:02 08:04 08:08 08:12 08:16 08:20 08:25 08:30 08:32 08:35 08:40 08:45 08:50 08:55
0909:00 09:05 09:10 09:15 09:20 09:25 09:30 09:36 09:42 09:48 09:54
1010:00 10:10 10:18 10:24 10:30 10:36 10:42 10:48 10:54
1111:00 11:06 11:12 11:18 11:24 11:30 11:36 11:42 11:48 11:54
1212:00 12:06 12:12 12:18 12:24 12:30 12:36 12:42 12:48 12:54
1313:00 13:06 13:12 13:18 13:24 13:30 13:35 13:40 13:45 13:50 13:55
1414:00 14:06 14:12 14:18 14:24 14:30 14:35 14:45 14:50 14:55
1515:00 15:05 15:10 15:15 15:20 15:25 15:30 15:35 15:40 15:45 15:50 15:55
1616:00 16:05 16:10 16:15 16:20 16:25 16:30 16:35 16:40 16:45 16:50 16:55
1717:00 17:05 17:10 17:15 17:20 17:25 17:30 17:35 17:40 17:45 17:50 17:55
1818:02 18:09 18:16 18:23 18:36 18:42 18:48 18:54
1919:00 19:07 19:14 19:21 19:28 19:36 19:44 19:52
2020:00 20:10 20:20 20:30 20:45
2121:00 21:20 21:40
2222:00 22:30
2323:00
How often?
05–077 min apart
07–10 morning4 min apart
10–16 midday6 min apart
16–19 evening5 min apart
19–228 min apart
22–05 night30 min apart

I.Ü. Cerrahpaşa Avc. Kamp. → Çatalca Return

Weekdays 178 departures · first 05:50 · last 00:20 · daytime every ~6 min

0505:50
0606:05 06:20 06:30 06:30 06:38 06:40 06:46 06:50 06:54
0707:00 07:02 07:10 07:18 07:20 07:26 07:34 07:40 07:42 07:50 07:58
0808:00 08:06 08:12 08:18 08:24 08:24 08:30 08:36 08:40 08:42 08:48 08:54
0909:00 09:00 09:06 09:10 09:12 09:18 09:20 09:24 09:30 09:30 09:36 09:40 09:42 09:48 09:50
1010:00 10:00 10:06 10:10 10:12 10:18 10:20 10:24 10:30 10:30 10:36 10:40 10:42 10:48 10:50 10:54
1111:00 11:00 11:08 11:16 11:20 11:30 11:32 11:40 11:40 11:50
1212:00 12:00 12:10 12:20 12:20 12:30 12:40 12:45 12:50
1313:00 13:00 13:10 13:15 13:20 13:30 13:30 13:40 13:45 13:50
1414:00 14:00 14:10 14:15 14:20 14:30 14:30 14:37 14:44 14:50 14:51 14:58
1515:05 15:10 15:12 15:20 15:26 15:30 15:36 15:44 15:50 15:52
1616:00 16:00 16:10 16:10 16:18 16:26 16:30 16:34 16:42 16:50 16:50 16:58
1717:06 17:10 17:14 17:20 17:30 17:30 17:40 17:50 17:50
1818:00 18:08 18:10 18:16 18:20 18:24 18:30 18:32 18:40 18:45 18:48 18:56
1919:00 19:04 19:12 19:15 19:20 19:28 19:30 19:36 19:44 19:50
2020:00 20:00 20:10 20:10 20:20 20:30 20:30 20:45
2121:00 21:00 21:15 21:30 21:30 21:45
2222:00 22:30
2323:00 23:30
0000:10 00:20
How often?
05–077 min apart
07–10 morning6 min apart
10–16 midday6 min apart
16–19 evening8 min apart
19–229 min apart
22–05 night30 min apart

Saturday 177 departures · first 05:50 · last 00:15 · daytime every ~10 min

0505:50
0606:00 06:12 06:25 06:36 06:44 06:52
0707:00 07:00 07:08 07:08 07:16 07:16 07:24 07:24 07:32 07:32 07:40 07:40 07:45 07:48 07:54
0808:00 08:10 08:10 08:18 08:18 08:26 08:26 08:34 08:34 08:42 08:42 08:50 08:50
0909:00 09:00 09:10 09:10 09:20 09:20 09:30 09:30 09:38 09:38 09:46 09:46 09:54 09:54
1010:04 10:04 10:12 10:12 10:20 10:20 10:28 10:28 10:36 10:36 10:44 10:44 10:52 10:52
1111:00 11:00 11:10 11:20 11:20 11:30 11:40 11:40 11:50 11:50
1212:00 12:00 12:15 12:15 12:30 12:30 12:40 12:40 12:50 12:50
1313:00 13:00 13:10 13:10 13:20 13:20 13:30 13:30 13:45 13:45
1414:00 14:00 14:15 14:15 14:30 14:30 14:40 14:40 14:50 14:50
1515:00 15:00 15:12 15:12 15:24 15:24 15:36 15:36 15:48 15:48
1616:00 16:00 16:10 16:10 16:20 16:20 16:30 16:30 16:40 16:40 16:50 16:50
1717:00 17:10 17:10 17:20 17:20 17:30 17:30 17:40 17:40 17:50 17:50
1818:00 18:00 18:10 18:10 18:20 18:20 18:30 18:30 18:40 18:40 18:50 18:50
1919:00 19:00 19:10 19:15 19:20 19:30 19:30 19:45 19:45
2020:00 20:00 20:15 20:15 20:30 20:30 20:38 20:46 20:54
2121:02 21:10 21:20 21:30 21:45
2222:00 22:20 22:40
2323:00 23:30
0000:15
How often?
05–0710 min apart
07–10 morning8 min apart
10–16 midday10 min apart
16–19 evening10 min apart
19–2210 min apart
22–05 night20 min apart

Sunday 175 departures · first 06:20 · last 00:15 · daytime every ~10 min

0606:20 06:30 06:35 06:40 06:45
0707:00 07:00 07:08 07:16 07:16 07:24 07:24 07:32 07:32 07:40 07:40 07:45 07:48 07:54
0808:00 08:10 08:10 08:18 08:18 08:26 08:26 08:34 08:34 08:42 08:42 08:50 08:50
0909:00 09:00 09:10 09:10 09:20 09:20 09:30 09:30 09:38 09:38 09:46 09:46 09:54 09:54
1010:04 10:04 10:12 10:12 10:20 10:20 10:28 10:28 10:36 10:36 10:44 10:44 10:52 10:52
1111:00 11:00 11:10 11:20 11:20 11:30 11:40 11:40 11:50 11:50
1212:00 12:00 12:15 12:15 12:30 12:30 12:40 12:40 12:50 12:50
1313:00 13:00 13:10 13:10 13:20 13:20 13:30 13:30 13:45 13:45
1414:00 14:00 14:15 14:15 14:30 14:30 14:40 14:40 14:50 14:50
1515:00 15:00 15:12 15:12 15:24 15:24 15:36 15:36 15:40 15:54 15:54
1616:02 16:04 16:10 16:15 16:20 16:30 16:30 16:40 16:40 16:50 16:50
1717:00 17:00 17:10 17:10 17:20 17:20 17:30 17:30 17:40 17:45 17:50 17:50
1818:00 18:00 18:10 18:10 18:20 18:20 18:30 18:30 18:40 18:40 18:50 18:50
1919:00 19:00 19:10 19:10 19:20 19:25 19:35 19:45 19:50
2020:00 20:00 20:15 20:15 20:30 20:30 20:38 20:46 20:54
2121:02 21:10 21:20 21:30 21:45
2222:00 22:20 22:40
2323:00 23:30
0000:15
How often?
05–075 min apart
07–10 morning8 min apart
10–16 midday10 min apart
16–19 evening10 min apart
19–2210 min apart
22–05 night20 min apart

401 stops

98 stops, in the order published by İETT.

I.Ü. Cerrahpaşa Avc. Kamp. → Çatalca 46

  1. I.Ü. Cerrahpaşa Avc. Kamp.
  2. Igs
  3. Cihangir Mahallesi
  4. Avcılar Anadolu Lisesi
  5. Türksan
  6. Avcılar E5
  7. Ambarlı Kavşağı
  8. Saadetdere Mahallesi
  9. Haramidere Sanayi Sitesi
  10. Haramidere
  11. Güzelyurt
  12. Beylikdüzü
  13. Beylikdüzü Belediye Metrobüs
  14. Bizimkent
  15. Cumhuriyet Mahallesi
  16. Iski Büyükçekmece Şube Müdürlüğü
  17. Beykent Metrobüs
  18. Tüyap Metrobüs
  19. Büyükçekmece
  20. Büyükçekmece Kaymakamlık
  21. Mimar Sinan Kavşağı
  22. Sanayi -2
  23. Baraj Yolu
  24. Tepecik
  25. Tepecik Ilkokulu
  26. Özgem Sokak
  27. Millet Caddesi
  28. Menekşe Caddesı
  29. Tepekent
  30. Bend Caddesi
  31. Ahmediye
  32. Havaalanı Yolu
  33. Muratbey
  34. Çatalca Istanbul Yolu
  35. Akçeşme Caddesi
  36. Çatalca Yolu Caddesi
  37. Serbest Bölge
  38. Çakılköyü Yolu
  39. Çatalca Devlet Hastanesi
  40. Çatalca Devlet Hastanesi Acil Girişi
  41. Ali Çavuş
  42. Çatalca Dörtyol
  43. Ferhatpaşa Ilkokulu
  44. Çatalca Kaymakamlığı
  45. Karadeniz Caddesi
  46. Çatalca

Çatalca → I.Ü. Cerrahpaşa Avc. Kamp. 52

  1. Mehmet Şanlı Caddesi
  2. Yamaç Çıkmazı
  3. Çatalca Merkez
  4. Ferhatpaşa Ilkokulu
  5. Çatalca Dörtyol
  6. Ali Çavuş
  7. Çatalca Devlet Hastanesi Acil Girişi
  8. Çatalca Devlet Hastanesi
  9. Çakılköyü Yolu
  10. Serbest Bölge
  11. Akçeşme Caddesi
  12. Çatalca Istanbul Yolu
  13. Muratbey
  14. Havaalanı Yolu
  15. Ahmediye
  16. Bend Caddesi
  17. Tepekent
  18. Menekşe Caddesı
  19. Millet Caddesi
  20. Özgem Sokak
  21. Tepecik Ilkokulu
  22. Tepecik
  23. Baraj Yolu
  24. Sanayi -2
  25. Sanayi
  26. Mimar Sinan Yat Limanı
  27. Büyükçekmece Iski
  28. Büyükçekmece Kaymakamlık
  29. Büyükçekmece
  30. Umutreis Caddesi
  31. Fatih Mahallesi
  32. Tabya 1
  33. Tabya 2
  34. Eskiyol
  35. Tüyap Metrobüs
  36. Beykent Metrobüs
  37. Iski Büyükçekmece Şube Müdürlüğü
  38. Cumhuriyet Mahallesi
  39. Bizimkent
  40. Beylikdüzü Belediye Metrobüs
  41. Beylikdüzü
  42. Güzelyurt
  43. Haramidere
  44. Haramidere Sanayi Sitesi
  45. Saadetdere Mahallesi
  46. Ambarlı Kavşağı
  47. Avcılar E5
  48. Türksan
  49. Avcılar Anadolu Lisesi
  50. Cihangir Mahallesi
  51. Igs
  52. Avcılar Camii

Frequently asked

What time is the first 401 bus?

On weekdays the first bus leaves Çatalca at 04:30.

What time is the last 401 bus?

On weekdays the last bus leaves at 23:00.

How often does the 401 run?

Roughly every 5 minutes during the day on weekdays. By time band: 05–07 every 7 min; 07–10 morning every 4 min; 10–16 midday every 6 min; 16–19 evening every 5 min; 19–22 every 8 min; 22–05 night every 30 min. This is the planned frequency; check the live position for traffic delays.

Which stops does the 401 serve?

46 stops towards I.Ü. Cerrahpaşa Avc. Kamp.: I.Ü. Cerrahpaşa Avc. Kamp., Igs, Cihangir Mahallesi, Avcılar Anadolu Lisesi, Türksan, Avcılar E5, Ambarlı Kavşağı, Saadetdere Mahallesi, Haramidere Sanayi Sitesi, Haramidere, Güzelyurt, Beylikdüzü, Beylikdüzü Belediye Metrobüs, Bizimkent…. Full list above.

Where does the 401 go?

It runs between Çatalca and I.Ü. Cerrahpaşa Avc. Kamp. (Çatalca – I.Ü. Cerrahpaşa Avc. Kamp.). Both directions are above.

Related lines

Source: the planned timetable published by İETT, re-read by MetroFlow weekly. The data on this page last changed on . Public holidays run the Sunday timetable; İETT announces short-notice changes in its own notices.