Hi, Gdansk is the closest airport, and is a nice city to visit as well. I flew in to Warsaw Modlin, but Warsaw Chopin is more convenient. Modlin is a good distance from the city. Trains to Leba are interesting when we went (late May) the trains only went as far as Lebork, but taxis and buses run regularly to Leba, personally i'd go with a taxi. In the actual tourist season there are direct trains from Warsaw and Gdansk. The best weather is probably June, July, August, but May was good for us, only rained on one day while we were there. Prices are very good particularly for food, alcohol was also very reasonable from the little we had. Our hotel was very well priced at about £220 for nine nights, and there are hotels running the range of prices, most are quite small and the area is much like a smaller British coastal resort in feel, rather than a continental resort with the stacked up hotels. Hope that helps