1223 Cambridge to Brighton
Departing on 8th December 2025

operated by
Thameslink
Planned
Realtime
Location
Pl
Arr
Dep
Arr
Dep
Dly
1
1223
1225
+2
1
1237
1238
1239
1240
+2
1
1242
1242
1245
1245
+3
1
1247
1247
1249
1250
+3
1
1250
1250
1253
1254
+4
1
1255
1255
1258
1300
+5
2
1300
1301
1304
1306
+5
2
1321
1322
1337
1339
+17
A
1329
1330
1344
1345
+15
3
1334
1334
1348
1349
+15
2
1336
1336
1351
1351
+15
1
1338
1339
1353
1353
+14
4
1344
1345
1357
1358
+13
3
1358
1359
1410
1411
+12
7
1414
1415
1426
1428
+13
5
1419
1420
1432
1433
+13
2
1429
1430
1441
1443
+13
2
1435
1436
1449
1450
+14
3
1448
1503
+15