It is approximately 6800 miles (10940 km).
(see related link)
From Philadelphia, Pennsylvania to Tokyo, Japan it is 6774 miles as the crow flies.
225 miles
JFGI
There are 5,326 km between Glasgow and Philadelphia. This is equal to 3,309 miles.
The distance between Chicago and Philadelphia is about 757 road miles.
There are about 5,800 miles between Denver, Colorado and Tokyo, Japan.
2869 miles
150 miles
310 miles
6,311 miles
32 miles / 51.4km by road.
Moscow to Tokyo, 4,034 nautical miles