Dear all,
I have flown the AMS - OSL route for over 15 years. The KLM codes for the flights started from KL 1140 to KL 1151. I see from the summer 2024 timetable, they are all changed. Any reason for this?
Sincerely,
SB

Seems like a lot of short haul codes are changing for the summer timetable. I don't know the reason, but like you I am slightly irrationally disturbed by my "normal" flight numbers suddenly being different.

Looks like KLM is reshuffling its flight numbers all around.

The new OSL numbers are coming from SVG, I think. Which is pulling the numbers from LPI which will get the old OSL numbers, or something like that. The cancelled TRF numbers ended up as ARN flights.

meanwhile elsewhere BUD is getting numbers which are currently WAW flights and WAW will get numbers which used to be BOD...

might be interesting to know why , but thanks for analysis

Ohh , at some point during covid i knew these codes by heart , good old days of cheap/fair KL prices are done unfortunately

I have some of them that felt off. BUD I remember was 1970s. PRG keeps old numbers.

Hello,

KLM is trying to harmonise flight codes into clearer groups.

Ireland is joining Scandinavia in the 11 / 12 zone group, making OSL and others move up on the number list.

Summer schedule starts 31st of March. On that day Hungary is leaving group 19 and is joining zone group 13. That allows to make space for extra numbers in different groups.



Note that trains are zone group 2 (+2 digits) and buses zone group 3 (+2 digits).


These are the new zone 11/12 flight numbers :

ZONE 11 /12 : IRELAND NORWAY SWEDEN FINLAND DENMARK

ORK
→ 1127 – 1131
← 1126 – 1128

DUB
→ 1135 – 1137 – 1139 – 1141 – 1143 – 1145
← 1134 – 1136 – 1138 – 1140 – 1142 – 1144

AES
→ 1157 – 1159
← 1156 – 1158

TRD
→1151 – 1153 – 1155
←1150 – 1152 – 1154

BGO
→ 1163 – 1167 – 1169 – 1171
← 1162 – 1164 – 1168 – 1170

SVG
→ 1173 – 1175 – 1177 – 1179 – 1181
← 1172 – 1174 – 1176 – 1178 – 1180

KRS
→ 1187 – 1189
← 1188 – 1184

OSL
→ 1197 – 1199 – 1201 – 1203 – 1205 – 1207
← 1196 – 1198 – 1200 – 1202 – 1204 – 1206

ARN
→ 1215 – 1219 –1223 – 1225 – 1227
← 1214 – 1216 – 1220 – 1224 -1226

GOT
→ 1229 -1231 – 1233 – 1235 – 1239
← 1228 – 1230 – 1232 – 1234 – 1236

LPI
→ 1245 1247
← 1242 1246

HEL
→ 1251 – 1253 – 1255
← 1248 – 1252 – 1254

CPH
→ 1267 – 1269 – 1271 – 1273 – 1275 – 1277 – 1279
← 1266 – 1268 – 1270 – 1272 – 1274 – 1276 – 1278

AAL
→ 1283 – 1285 – 1287 – 1289
← 1282 – 1284 – 1286 – 1288

BLL
→1291 – 1293 – 1295 – 1297 – 1299
←1290 – 1292 – 1294 – 1296 – 1298

Well this is inexplicably disconcerting...!

Thanks for all information , i guessed it was something like this , and now i have a clear view of how flight numbers are assigned in europe