[alistairSH]

Ha! I live in Reston and mapped out some options on Goole Maps...

Home to IAD by car: 5 miles, 9 minutes

Home to IAD by transit: 40+ minutes across 2 bus lines

Home to IAD by foot: 10.9 miles, 3+ hours

Home to WAS by car: 24 miles, 29 minutes

Home to WAS by transit: 90+ minutes across 1 bus line, 2 Metro lines, and a few walking segments to link them.

It's sad that walking to the airport is twice as far than driving. It's also sad that I can drive to a airport further away than I can access my closest airport by transit.

[stransky]

You forgot to include time to park.

[alistairSH]

Fair enough, I always take a cab/Uber to IAD, as that cost is far less than the price of parking. And living so close to IAD, I try to fly out of it whenever possible (all work travel, 80% of pleasure travel).

[rayiner]

Parking at IAD is a cinch.