Bonjour, je vous ai trouvé ce qui est écrit en anglais ci-dessous.
J'ai déjà pris le bus entre
IAD et West Falls Church: c'est économique mais pas forcément pratique si vous avez des bagages encombrants.
I believe that
Washington Flyer
used to have a direct bus shuttle between
IAD and
DCA, but it was discontinued years ago. Now, in addition to their cab service to all points, they offer a bus shuttle to the
West Falls Church Metrorail station only, which takes 25 minutes. From there, you would take the Orange Line, then have to transfer to the Blue Line to National Airport at Roslyn (add another 40 minutes to the shuttle time + waiting for connections). It would be $8 for the shuttle, then $1.85 for Metro ($2.75 during peak am/pm rush hours).
The cheapest alternative would be to take the Metrobus
Route 5A from
IAD to the L'Enfant Metrorail station for $3, which would take about an hour. Add another $1.35/$1.40 for the Metrorail, and 10 minutes + connection time. The
Washington Flyer is a lot more comfortable than the Metrobus though (quite
nice actually - have used it several times), and may well be worth the extra $5 or so to you. Also, the Metrobus has only 1 departure per hour from
IAD.
Super Shuttle would be about $22, and as metioned above, there could be a lot of hidden waiting time involved.
A cab will take about 35-40 minutes (longer for rush hours) and set you back at least $50.
