Here You can find a list of airlines which operated in Frankfurt airport.
Tirana - Lufthansa
Yerevan - Condor Flugdienst, Lufthansa
Baku - Lufthansa, United Airlines
Brussels-Zaventem - Lufthansa, BrusselsAirlines
Sarajevo - Lufthansa, Singapore Airlines
Sofia - Ethiopian Airlines, Scandinavian Airlines System, Lufthansa, AirCanada, TAP Portugal, United Airlines, Singapore Airlines, BulgariaAir, QatarAirways
Billund - Lufthansa
Copenhagen Kastrup - Lufthansa, Scandinavian Airlines System
Tallinn - All Nippon Airways, Austrian, Singapore Airlines, Lufthansa, United Airlines
Helsinki Vantaa - Lufthansa, Ethiopian Airlines, Aegean, Austrian, Etihad, Finnair, AirCanada, BrusselsAirlines, OmanAir, TAP Portugal, All Nippon Airways, Singapore Airlines, AirChina, United Airlines
Ivalo - Lufthansa
Kuusamo - Lufthansa
Tampere Pirkkala - AirBaltic
Basel Mulhouse Freiburg - Lufthansa, Swiss International, AirCanada, AirChina, United Airlines, Scandinavian Airlines System, All Nippon Airways
Bastia Corsica - Lufthansa
Bordeaux - Swiss International, Lufthansa
Lyon - Lufthansa
Marseille Provence - Lufthansa, Scandinavian Airlines System
Nantes - Lufthansa
Nice - Lufthansa, Condor Flugdienst
Paris Charles de Gaulle - Lufthansa, AirFrance, SriLankan Airlines
Rennes - Lufthansa
Strasbourg - LOT, Lufthansa
Toulouse Blagnac - Scandinavian Airlines System, Lufthansa, United Airlines, Singapore Airlines, AirCanada, All Nippon Airways, Ethiopian Airlines, AirIndia Limited
Athens - Lufthansa, Aegean
Chania - Condor Flugdienst, Lufthansa, Travel Service
Heraklion - Aegean, Lufthansa, AirCanada, TUIfly, TAP Portugal, Condor Flugdienst
Kalamata - Travel Service
Kavala - Condor Flugdienst
Kos - TUIfly, Condor Flugdienst
Rhodes - Lufthansa, Aegean, TUIfly, Condor Flugdienst
Samos - Condor Flugdienst
Thessaloniki - Aegean, Lufthansa
Zakynthos - Condor Flugdienst
Birmingham International - Lufthansa, All Nippon Airways, United Airlines, AirCanada, Singapore Airlines, TAP Portugal
Bristol - Lufthansa, TAP Portugal
Guernsey - Skynet Airlines
Jersey - Skynet Airlines
Liverpool John Lennon - Lufthansa
London City - Lufthansa, British
London Stansted - Travel Service
Manchester - Lufthansa
Newcastle - Lufthansa
London Heathrow - Lufthansa, British, Singapore Airlines
Amsterdam Schiphol - Lufthansa, KLM Royal, United Airlines, Scandinavian Airlines System
Dublin - Lufthansa, Aer Lingus
Keflavík - Icelandair, Lufthansa
Ancona - Eurowings
Bari - Lufthansa
Bologna - Lufthansa, AirCanada, All Nippon Airways, Singapore Airlines, United Airlines, Luxair, AirChina
Catania - Lufthansa
Lamezia Terme - Condor Flugdienst
Olbia Sardinia - Condor Flugdienst, Lufthansa
Rome Fiumicino - Lufthansa
Turin - Lufthansa, AirDolomiti, All Nippon Airways, AirCanada, AirChina, United Airlines, American Airlines, Ryanair
Venice Marco Polo - Lufthansa
Verona - All Nippon Airways, AirCanada, AirDolomiti, Lufthansa, United Airlines
Almaty - AirAstana, Lufthansa, United Airlines
Dubrovnik - AirIndia Limited, Lufthansa, CroatiaAirlines, AirCanada, United Airlines, Trans Pas Air, Scandinavian Airlines System, LOT, Asiana Airlines, Singapore Airlines
Pula - Lufthansa
Split - CroatiaAirlines, Lufthansa
Zadar - Lufthansa
Zagreb - United Airlines, Singapore Airlines, AirCanada, CroatiaAirlines, Lufthansa, Asiana Airlines, All Nippon Airways, Trans Pas Air, TAP Portugal, AirIndia Limited, Scandinavian Airlines System, LOT
Riga - AirIndia Limited, Aegean, AirBaltic, Iberia, Tarom, Lufthansa, All Nippon Airways, United Airlines, AirCanada, Trans Pas Air, Travel Service
Vilnius - BrusselsAirlines, All Nippon Airways, AirCanada, United Airlines, Aegean, Lufthansa
Luxembourg - Lufthansa
Malta Luqa - Lufthansa, AirMalta, United Airlines, Scandinavian Airlines System, Singapore Airlines, AirCanada
Bergen - Lufthansa
Kristiansand Kjevik - Travel Service
Oslo Gardermoen - Lufthansa
Stavanger Sola - Lufthansa, EnterAir
Tromsø-Langnes - Lufthansa
Graz - Lufthansa, AirDolomiti
Innsbruck - Lufthansa, AirDolomiti
Linz - Lufthansa, AirDolomiti, AirCanada, All Nippon Airways
Salzburg - Lufthansa
Vienna Schwechat International - Lufthansa, Austrian
Wroclaw - Lufthansa
Gdansk - Lufthansa
Katowice - Lufthansa
Krakow - Lufthansa
Poznan - Lufthansa, Singapore Airlines, LOT, United Airlines
Warsaw Chopin - Lufthansa, LOT
Faro - Lufthansa, Condor Flugdienst, TUIfly, Travel Service
Madeira Funchal - TUIfly, Lufthansa, Condor Flugdienst
Ponta Delgada - SATA International, Lufthansa, Travel Service
Porto - Lufthansa, AirCanada, All Nippon Airways, Luxair, Singapore Airlines, TAP Portugal, United Airlines, Neos
Lisbon Portela - AirCanada, TAP Portugal, Aegean, All Nippon Airways, CroatiaAirlines, Lufthansa, Ethiopian Airlines, SATA International, United Airlines, Singapore Airlines, ThaiAirways International, Egyptair, Austrian, Scandinavian Airlines System, El Al, AirBaltic, AirChina, AirIndia Limited, Condor Flugdienst, LOT, EnterAir, Atlasjet, Eurowings
Bukarest Otopeni - Lufthansa, Tarom, AirBaltic
Cluj-Napoca - Lufthansa
Timisoara - Lufthansa
Edinburgh - Lufthansa, Singapore Airlines
Glasgow International - Lufthansa
Gothenburg Landvetter - Lufthansa
Kalmar - Lufthansa, AirDolomiti
Stockholm Arlanda - Lufthansa, Scandinavian Airlines System
Geneva - Lufthansa, Swiss International, EnterAir
Zürich - Lufthansa, Swiss International
Belgrade - United Airlines, AirSerbia, AirEuropa, Lufthansa
Ljubljana - Lufthansa
Alicante - Lufthansa, Condor Flugdienst
Badajoz - American Airlines
Barcelona El Prat - Lufthansa
Bilbao - Lufthansa, Austrian, All Nippon Airways, AirCanada, United Airlines, Swiss International, AirChina, Scandinavian Airlines System
Granada - American Airlines
Ibiza - Lufthansa, AirCanada, Condor Flugdienst, Eurowings
Lanzarote Arrecife - TUIfly, Condor Flugdienst
Las Palmas Gran Canaria - TUIfly, Condor Flugdienst
Madrid Barajas - Iberia, AirEuropa, Lufthansa
Malaga Costa del Sol - Austrian, Lufthansa, Condor Flugdienst, TUIfly
Palma de Mallorca - Condor Flugdienst, Lufthansa, TUIfly, Eurowings
Seville - Lufthansa
Tenerife South - TUIfly, Condor Flugdienst
Valencia - AirCanada, Lufthansa, Etihad, United Airlines, All Nippon Airways
Prague - Lufthansa
Ankara Esenboğa - Pegasus, SunExpress, Lufthansa, Turkish
Antalya - SunExpress, Pegasus, Turkish
Izmir Adnan Menderes - Lufthansa, SunExpress, Corendon Airlines, Pegasus
Kayseri - Corendon Airlines, SunExpress, Lufthansa
Istanbul Sabiha Gökçen - Turkish, Pegasus
Istanbul Atatürk - Lufthansa, Turkish, Pakistan International
Budapest - Lufthansa
Larnaca International - Lufthansa, Condor Flugdienst, TUIfly
Bremen - LAN Airlines, All Nippon Airways, Lufthansa, TAP Portugal, United Airlines, AirCanada, Luxair, Singapore Airlines, AirIndia Limited
Dresden - TAP Portugal, AirChina, AirIndia Limited, Aegean, United Airlines, Lufthansa, AirCanada, All Nippon Airways, Singapore Airlines, Cathay Pacific
Düsseldorf - ThaiAirways International, All Nippon Airways, Ethiopian Airlines, LAN Airlines, Qantas, CroatiaAirlines, United Airlines, AirChina, TAP Portugal, Singapore Airlines, AirIndia Limited, AirCanada, Egyptair, Malaysia Airlines, TUIfly, Corendon Airlines
Friedrichshafen - All Nippon Airways, United Airlines, Lufthansa, AirChina
Hamburg - Lufthansa
Köln Bonn - Scandinavian Airlines System
Memmingen - Scandinavian Airlines System
Munich - Lufthansa
Münster Osnabrück International - United Airlines, TAP Portugal, All Nippon Airways, AirCanada
Nuremberg - Lufthansa, AirCanada, ThaiAirways International, AirIndia Limited, TAP Portugal, Singapore Airlines, Scandinavian Airlines System, LAN Airlines, United Airlines, All Nippon Airways, Condor Flugdienst, AirChina, Cathay Pacific, Swiss International
Stuttgart - Lufthansa, Eurowings
Sylt - Lufthansa