Cheap Flights From Chicago, Illinois (CHI) To London, England (LON) - No Deals

Flight from Chicago to London (MDW-LHR)

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There are approximately 25 flights covering the route from Midway Airport in Chicago to Heathrow Airport in London, provided by as many as 5 airlines.

The following airlines often offer cheap flights from Chicago to London:

Delta Air Lines
American Airlines
British Airways

As an alternative to flying from Chicago, you may also want to try searching for cheap flights from Chicago (ORD).