1223 Cambridge to Brighton
Departing on 13th December 2025

operated by
Thameslink
12 coaches
Planned
Realtime
Location
Pl
Arr
Dep
Arr
Dep
Dly
7
1223
1223
1
1237
1238
1236
1238
1
1242
1242
1242
1243
+1
1
1247
1247
1247
1248
+1
1
1250
1250
1250
1251
+1
1
1255
1255
1255
1255
1
1300
1301
1300
1301
2
1321
1322
1319
1322
A
1329
1330
1330
1331
+1
3
1334
1334
1335
1336
+2
2
1336
1336
1337
1338
+2
1
1338
1339
1340
1341
+2
4
1344
1345
1345
1347
+2
3
1358
1359
1358
1359
7
1414
1415
1414
1416
+1
5
1419
1420
1420
1421
+1
1
1429
1430
1431
1432
+2
2
1435
1436
1438
1440
+4
4
1448
1453
+5