Stockholm Skavsta Airport — Nyköping, Sweden

Despite carrying Stockholm's name, Skavsta Airport actually sits roughly 100 kilometers south of the Swedish capital, near the smaller city of Nyköping, a distance budget carriers have long downplayed in their marketing while still running frequent coach connections into central Stockholm. Assigned the code NYO, the airport began as a Swedish Air Force base, home to the F 11 wing, before its runways were repurposed for civilian use, and it grew into one of Ryanair's most important Scandinavian bases during the 2000s as low-cost European travel expanded rapidly. Two runways give Skavsta enough capacity to handle both scheduled passenger traffic and a meaningful volume of air cargo, an activity that has grown alongside the airport's role as an alternative to the more congested and expensive Arlanda, Stockholm's primary international airport. For travelers willing to accept the longer transfer, NYO has offered a genuinely cheaper way into the Swedish capital for two decades.