When your in Nyköping the best way to get around is with bicycle, everytings is nearby. You can rent bicycles in Nyköpings Tourist center at Rådhuset.
Aduld- 100 kr (about 10 Euro) per day or 450 kr (about 45 Euro) per week.
Children- 75 kr (about 7,5 Euro) per day or 350 kr (about 35 Euro) per week.
For more information visit the website.
You could well find yourself in Nyköping just because you travel Ryanair! Not that you will see much of town unless you decide to go specifically to Nyköping - bus 715 towards Oxelösund until late afternoons, otherwise taxi :-( since the Ryanair buses themselves all go directly to Stockholm...
Ryanair fly here from London Stanstead which they have done for some years now but recently decided to make Nyköping their Scandinavian hub and started flights to Paris, Glasgow, Frankfurt Hahn, Turku, Århus and Oslo. There are also flights from here to and from Gotland but otherwise mainly freight. All this Ryanair expansion has made Nyköping Council see dollar signs in front of their eyes and the whole region expect an upswing with housing, tourism etc. which earlier in the year made the council rush through a decision to PAY Ryanair to put www.nykoping.se on all their planes, much to the annoyance of people living "in the real world", i.e. teachers, nurses and others with little council money.
From Skavsta Airport you can fly to many different destinations in Europe and also Asia. You have many different companies which fly from here to all over the world.
At Skavsta you can rent cars, sit down and have a beer or a glas of wine, change money, buy souvenirs and sit down and eat food too. You can also rent computers to kill the time.
You also find the tourist office at Skavsta directly when you have passed the customs. If you arrive very late to Skavsta, they probably have any personal service there, but you will find a lot of booklets and maps for free. Taxis will be waiting at least for you.
A good way to get to Nyköping is by airplane since the airport is only 8 kilometers away from Nyköping center.
If you dont want to take a taxi to Nyköping you can take the local bus that runns from 04.00 to 00.00 every day. Take bus 515 or 715 to Nyköping.
From Skavsta airport to Nyköping center is abot 8 kilometers away and it costs about 175 kr (about 17 Euro). The trip takes about 10 minutes with Taxi.