You can look at the Google map version here, or embedded below. And here's the total view of the year's stats from OpenFlights.
*********
Airports by Miles
London Heathrow Airport (LHR) 28,282San Francisco Intern (SFO) 23,608
National Washington (DCA) 20,616
Dallas Fort Worth In (DFW) 18,590
Washington Dulles In (IAD) 17,071
Singapore Changi Air (SIN) 16,868
Chek Lap Kok International (HKG) 16,212
John F Kennedy Inter (JFK) 12,661
Jomo Kenyatta Intern (NBO) 8,496
Helsinki Vantaa Airp (HEL) 8,206
Phoenix Sky Harbor I (PHX) 7,808
Chicago O'Hare Inter (ORD) 6,120
Miami International (MIA) 5,335
Barcelona Internatio (BCN) 4,531
Salt Lake City Inter (SLC) 4,530
Lambert St Louis Int (STL) 1,432
Norman Y. Mineta San (SJC) 1,240
Hartsfield Jackson Atlanta (ATL) 1,092
Burlington International (BTV) 872
Reno Tahoe International (RNO) 840
Detroit Metropolitan (DTW) 808
La Guardia Airport (LGA) 428
Airports by Segements
National Washington (DCA) 25London Heathrow Airp (LHR) 8
Phoenix Sky Harbor I (PHX) 6
San Francisco Intern (SFO) 6
John F Kennedy Inter (JFK) 6
Chicago O'Hare Inter (ORD) 6
Washington Dulles In (IAD) 5
Salt Lake City Inter (SLC) 4
Dallas Fort Worth In (DFW) 4
Singapore Changi Air (SIN) 2
Barcelona Internatio (BCN) 2
Chek Lap Kok Interna (HKG) 2
Helsinki Vantaa Airp (HEL) 2
Hartsfield Jackson A (ATL) 2
Miami International (MIA) 2
Norman Y. Mineta San (SJC) 2
Jomo Kenyatta Intern (NBO) 2
Detroit Metropolitan (DTW) 2
Burlington Internati (BTV) 2
Lambert St Louis Int (STL) 2
Reno Tahoe Internati (RNO) 2
La Guardia Airport (LGA) 2
