I am flying out of IAD in first so I can access the Virgin Clubhouse and pay $35 for entry which is okay.
Reading up VX operate out of the B terminal and gates B75 & B79.
The Virgin clubhouse is located opposite B32 according to Wikipedia...
So I assume this is a 5-10 minute walk from B32 to B75 and it's all in the same terminal according to
http://www.metwashairports.com/_/fil...dterm_mezz.pdf
So international flights leave from nearby gates to domestic flights?