The flight London - Chicago is directly operated by the following Air companies: American Airlines, Finnair, British Airways, Norwegian Air UK, Delta Air Lines, Aer Lingus, Iberia, Lufthansa, Austrian Airlines, Brussels Airlines, United Airlines.

From our control systems the cheapest prices for flights London - Chicago are from the Air companies American Airlines, Air Canada, Air France, Finnair, Alitalia, British Airways, Delta Air Lines, Aer Lingus, Icelandair, Iberia, KLM, Lufthansa, Lot Polish Airlines, Swiss Air, Austrian Airlines, Scandinavian Airlines, Brussels Airlines, Turkish Airlines, TAP Portugal, United Airlines, Virgin Atlantic, Alitalia.