While editing a short story, I needed the flight time for a direct flight from Pittsburgh to Arkansas.  I first checked with the airlines but could only find multi-leg flights.

After getting creative with a few more search terms, up pops

Travelmath dot com;

where visitors can input two locations to get more than 20 different calculations. The online travel planning calculator allows users to calculate driving distance, flight time, carbon emissions, geographic coordinates, and much more.

Travelmath.com is a perfect tool for writers who like to add a little realism to their tales.