1223 Cambridge to Brighton
Departing on 11th December 2025

operated by
Thameslink
12 coaches
Planned
Realtime
Location
Pl
Arr
Dep
Arr
Dep
Dly
1
1223
1226
+3
1
1237
1238
1242
1243
+5
1
1242
1242
1247
1248
+6
1
1247
1247
1252
1253
+6
1
1250
1250
1255
1257
+7
1
1255
1255
1300
1302
+7
1
1300
1301
1307
1309
+8
2
1321
1322
1328
1329
+7
A
1329
1330
1333
1334
+4
3
1334
1334
1338
1339
+5
2
1336
1336
1342
1343
+7
1
1338
1339
1347
1347
+8
4
1344
1345
1351
1352
+7
3
1358
1359
1407
1408
+9
7
1414
1415
1422
1424
+9
5
1419
1420
1430
1431
+11
2
1429
1430
1439
1440
+10
2
1435
1436
1446
1447
+11
3
1448
1500
+12