St. Louis→LondonNonstop Flight TimeSTL–LHR

St. Louis (St. Louis Lambert International Airport) to London (London Heathrow Airport).

Direct flights from STL to LHR have an estimated flight time of about 9h 14m, based on the 4,189-mile great-circle distance. Our current captured departure sample includes 1/day across 1 captured airline, with British Airways appearing most often in that sample. Captured departure times run from 21:35 to 21:40 local time.

Methodology: airline, aircraft, terminal, and departure-time details come from the rolling scheduled-departures window for STL to LHR, last seen June 15, 2026. Frequency uses 4 scheduled departures across 4 observed days; flight time is estimated from great-circle distance until this route has enough tracked flights for an observed average. Provider coverage can miss operators on some routes, so confirm live timetables before booking.