Early flight out of Baltimore BWI?
I  have a 7am flight out of BWI, but I'm coming from DC and I realized  that the public transportation (metro/buses) wouldn't be running that  early. Can any one tell me the best and cheapest way to get to BWI early  in the morning from DC? Help would really be appreciated. Thanks! 
Washington, D.C. - 2 Answers
Random Answers, Critics, Comments, Opinions :
1 :
The  Super Shuttle (1-800-blue-van) will pick you up at your doorstep. It's  about $25 per address so if you're travelling with a companion, that $25  covers both of you. Forewarned, though, they get you there VERY early;  they'll probably pick you up at 4 for a 7am flight.
2 :
The  first MARC train leaves DC at 5:54 AM arriving at BWI by 6:26AM.  With  the shuttle bus, you'll make it to the terminal with enough time to use  echeck-in if the security lines are not a mile long.  {EDIT} Amtrak has Train 110 which leaves DC at 4 AM arriving at BWI  Airport at 4:28 AM.  With the shuttle bus, you can arrive at BWI by 4 AM  when the airport is just stirring to life.  Train 180 leaves DC at 5:25  AM and arrives at BWI at 5:52 AM.  The tickets are $12 but could be  cheaper because I used 10/16 as the departure date.  DC Metro starts  running at 5 AM and if you can make it to a Metro station, you can make  it to Union Station and to the airport.