<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by kempis:
SAS hasnt been flying to KEF for years. Icelandair is the only main carrier who flies to KEF.</font>
Looks like the Iceland Air flights carry the SK code: for tomorrow 12 Feb., FI 205 is SK 6410 and FI 213 is SK 6412 from CPH to KEF. Tomorrow's flights from KEF to CPH are FI 204 as SK 6415, and FI 212 as SK 6411.
I'm not 100% sure if these Sk coded flights can be booked with UA miles-- you might have to check.