"Welcome to your flight to HEL" isn't exactly what you want to hear when boarding an aircraft, but that's exactly what you get en route to Helsinki in Finland. The airport serves the Finnish capital and is a major transfer hub for destinations in Asia, as well as the main hub for Finnair, the flag carrier of Finland.

Up until 2018, the especially brave were able to board flight AY666 to HEL on Friday the 13th. The number for the Finnair flight from Copenhagen was then changed to AY954.

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