Flight distance between HDF and St. Louis Lambert International Airport

About this route

The direct flight distance between HDF (HDF) and St. Louis Lambert International Airport (St. Louis) (STL) is approximately 7,453 kilometers (4,631 miles). An average commercial jet flying non-stop at a cruising speed of 900 km/h requires about 8h 47min of total flight time, including 30 minutes for taxiing, takeoff, and landing procedures. Travelers flying this route will cross time zones, experiencing an official time difference of N/A between the departure and arrival locations. Estimated carbon emissions for an economy class passenger on this route are roughly 857 kg of CO2. Use our interactive flight range map and route calculator to plan connections, compare airlines, and analyze flight paths between HDF and STL.