Originally Posted by
Jet'Dillo
A 21:45 arrival plays too close to the Noise Abatement hours that DCA operates under. IIRC, it's something like 22:00-06:00 or so.
All you would need is to have a late departure, or run into weather or sector-crossing flow-control from enroute ATC and you'd find your 21:45 DCA arrival unceremoniously turned into a 22:15 or later arrival at IAD or BWI.
I believe the noise rules are not a meaningful constraint for modern airplanes with Stage 3 engines, which is most of them these days.
Originally Posted by
coolbeans202
The only parts of DC where it could conceivably be easier to reach IAD would be upper-NW (Palisades, Spring Valley, AU)m where you could hop over Chain Bridge and be in Tyson's pretty quickly.
I live in that area, and DCA is 20 mins/$20 and Dulles is 45 mins/$50-60, assuming modest traffic.