Air Carriers at Prague's Airport

Aer Lingus - EIN: National airline of Ireland, based in Dublin
Aeroflot - AFL: Russian's International Airline.
Aerosvit Airlines - AEW (in Russian)
Air Europa - AEA: Based in Spain.
Air France (UK, Ireland) - AFR: France's International Airline. Fly from and to many world wide destinations.
Air Italy - AEY: Based in Gallarate in Italy.
Air Malta - AMC: National airline of Malta. Serving 50 destinations in Europe and North Africa.
Air Moldova - MLD: National airline of Moldova, based in Chisinău
Alitalia - AZA: An Italy's airline.
Alpi Eagles - ELG: Based in Italy.
Austrian Airlines (UK) - AUA : National airline of Austria, based in Vienna.
Belavia - BRU: Belarus' National Airline.
British Airways - BAW: United Kingdom's Airline, based in UK.
British Midland - BMI: Also called BMI, UK's low-cost airline, based in UK.
Bulgarian Air - LZB: Bulgaria's National Airline, based in Sofia.
Channel Express - EXS: Based in Bournemouth, United Kingdom.
Czech Airlines - CSA: Czech National Airline.
Delta Airlines - DAL:  US International Airline. Serving North America, South America, Europe, Asia, Africa, the Middle East and the Caribbean.
Deutsche Lufthansa - DLH: Germany's International Airline, based in Cologne.
Easy Jet Airlines - EZY:  Low-cost airline based at London Luton Airport.
Easyjet Switzerland SA - EZS: Low-cost airline based in Geneva, Switzerland.
Finnair - FIN: Finland's national carrier, based in Helsinki.
FLY : Based at Exeter Airport, England
Fly Baboo - BBO: A Swiss airline company. 
Flyglobespan - GSM: Low-cost airline based in Edinburgh, Scotland.
German Wings - GWI: Low-cost airline based in Cologne/Bonn, Germany.
JAT Airways - JAT: National airline of Serbia.
KD Avia Airlines - KNI closed: Site in Russian.
KLM Royal Dutch Airlines - KLM: Neitherland's airline.
Korean Air - KAL: Korea's national airlines.
LOT - Polskie Linie Lotnicze - LOT: Based in Poland. Fly within Central and Eastern Europe and a few cities in America.
Malev - MAH: National airline of Hungary.
Norwegian Air Shuttle - NAX: Norwegian low-cost airline, main base at Oslo Airport, Gardermoen.
Polet Airlines - POT: Airline based in Voronezh, Russia.
SAS Scan. Airlines System - SAS: Multi-national airline for Denmark and Sweden
Skyeurope Airlines - ESK: Slovakia, low-cost airline, with bases in Bratislava, Krakow, Budapest, Prague and Vienna.
SN Brussels Airlines - DAT: A Belgian airline operating from Brussels Airport.
Sterling European Airlines - SNB: Low-fare airline, based in Copenhagen, Denmark.
Swiss Air Lines - SWR: Swiss International Air Lines.
TAP Air Portugal - TAP: National airline of Portugal, based in Lisbon.
Thomsonfly.com - TOM: Lowfare airline based across UK.
Tunis Air - TAR: Tunisia's airline. (in France)
Turkish Airlines - THY: National airline of Turkey based in Istanbul.
Ural Airlines - SVR: Based in Yekaterinburg, Russia.