Anholt Airfield is very expensiv - dkk 250 below 1.199 KG and dkk 500 above 1.199 KG. No overnight fees. But in July the island is fantastic, that is if the sun i shining - if its raining then its a bit bvaadr...

- and there is nice restaurants, a camping spot just behind the beach and two nice bed & breakfasts. But book upfront and do it now.
ANHOLT.DK - et paradis midt i Kattegat
Roskilde, ekrk, is a cab (dkk 150) away from the train station from which it takes 22 minutes before you arrive in central Copenhagen next to Tivoli. Landing fee dkk 85 and overnight is app. dkk 50
pr night.
Other option is Groenholt, north of Copenhagen. Landing fee cheap if below 1.199 KG, a bit pricy if you are above. Overnight is the same as Roskilde. It's a 10 minut walt from the train and then its a 45 minutes ride into central Copenhagen. Theres a Bed & Breakfast with pool at the airfield and its located rather close to Kronborg Castle (Hamlet) and Fredensborg Castle.
CMS
Luxury island to fly to must be Vejroe - very unspoiled nature with gourmet restaurant, amazing huge play ground for kids, tennis court, lots of wild animals, private chef, a food store and three rentable houses with an interior that looks like a five star luxury hotel. Downside is the price - a house (2-7 persons) is app dkk 1800-2500
pr night. The airfield is 600 m grass. But see more at
VEJRĜ