Find out the right code to the city or airport!
HLS
HEL
HLK
HIS
BUD
BDS
BDP
BPT
REY
REJ
RYK
REK
KEF
KFL
KVF
KFV
OSL
OLS
OSO
OSG
LJB
LJN
LJU
LNA
STL
SHL
STH
STO
ARL
ARN
ARO
ALN
IST
ISU
ISB
ISA
LND
LON
LDN
LNO
MCE
MAN
MCH
MHX
BRM
BHX
BHM
BIR
EXB
EDB
EDI
EDH
GLS
GLA
GLW
GSW
BFS
BEL
BLF
BEF
HEA
LHW
LHR
HTR
GAT
LGW
LGH
GTW
VIE
VIN
VNE
VEA
INN
INS
INB
ISB
BUS
BUE
BRS
BRU
ANT
ANW
ANR
AWE
PRS
PAR
PIS
PRI
MRS
MAR
MSE
MSL
NCE
NIC
NEI
NCX
LYO
LYN
LYS
LNO