Hotel Gromada Airport ( Category ***)
Price: ~ 319 PLN/night
http://airporthotel.pl/

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Hampton by Hilton Warsaw City Centre (Category ***)
Price: ~ 570 PLN/night
http://hamptoninn3.hilton.com/en/hotels/poland/hampton-by-hilton-warsaw-city-centre-WAWCTHX/index.html

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Novotel Warsaw Centre (Category ****)
Price: ~ 515 PLN/night
http://www.novotel.com/pl/hotel-3383-novotel-warszawa-centrum/index.shtml

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Hotel MDM City Centre (Category ***)
Price: ~ 400 PLN/night
http://www.hotelmdm.com.pl/en/default.html

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Hotel Rialto (Category *****)
Price: ~ 640 PLN/night
http://www.rialto.pl/o-nas