<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Axi22:
I am looking at the 'great circle mapper' so I am unsure which mileage calculations are correct. It shows SFO-LHR being 4665 miles..
confused.</font>
Actually, it sounds like you're getting the hang of it!
But, which great circle mapper are you using? gc.kls2.com lists SFO-LHR at 5367 miles.