Finnair has been flying non-superstitious passengers via Flight 666 from Copenhagen, Denmark, to Helsinki on the so-called unluckiest day of the year since 2006, The Telegraph reported.
So if you're feeling a bit nervous about what the day might bring, consider the plight of passengers aboard a Finnair flight from Copenhagen to Helsinki.
Flyers termed as "brave" have is boarding the last ever Flight 666 to HEL on Friday the 13th.
The Nordic airline made a decision to retire the flight number after its trip cheduled to depart on the 13th hour of October 13, 2017.
Today will be the last time Flight 666 flies to Hel, as the airline has made a decision to change the flight number.
Some fun-loving Finns at Helsinki Airport weren't about to miss the opportunity to see Flight 666 off in style.
"We are a growing airline and we are reorganising our flight numbers to make room for additional flight numbers to be used", said a spokesperson for Finnair.
It will depart from Denmark at 1.20pm and is scheduled to arrive shortly before 4pm.
'In 11 years, we've flown 21 times the AY666 flight to HEL on Friday the 13.
Pilot Juha-Pekka Keidasto previously told RT: "It has been quite a joke among the pilots".