Most frequent connection to Washington-DC:
- Toronto - Washington-DC (124/Week)
- New York - Washington-DC (419/Week)
- Chicago - Washington-DC (295/Week)
- Atlanta - Washington-DC (254/Week)
- Boston - Washington-DC (211/Week)
- Charlotte - Washington-DC (154/Week)
- Orlando - Washington-DC (153/Week)
- Los Angeles - Washington-DC (114/Week)
- Dallas - Washington-DC (110/Week)
- Denver - Washington-DC (109/Week)