Flight 666 flies to HEL on Friday the 13th for last time
Finnair flight AY666 flew from Copenhagen to Helsinki (airport code HEL) on Friday the 13th for the last time, the airline announced. Finnair, which has operated AY666 to Helsinki on Friday the 13th 21 times in 11 years, is changing its flight numbers this month. While 666 is called the Number of the Beast, 13 is considered unlucky in Christianity.