Aslin is closed Mondays through Wednesdays and, for now, only does crowler fills on Thursdays and Saturdays. Unfortunately, I work from home on Thursdays, otherwise I'd do a bro a solid since my office is about 15 minutes from Aslin.
Rye Barrel Aged Solar Abyss sounds hella gross but Jack Rose is cool and good. Churchkey may still have a couple Veil beers on tap (Master Shredder and Crucial Taunt) this weekend if you need to get yer fix of hype and IPAs.
Rustico Alexandria is about two miles from Crystal City/National Airport. You could cab/Uber there in about 10 minutes. Rustico has great beer - it's run by the same folks as Churchkey/Bluejacket/etc. (NRG) - and the food is pretty solid.
If you're into beer
and bourbon, you should check out
Smoke and Barrel. It's about a 5 minute walk up 18th Street from Jack Rose so you have no excuse not to hit it. The Partisan (another NRG spot) should be fairly easy to get to from Crystal City via metro (take the Yellow Line to Archives/Penn Quarter). They have a
pretty nice whiskey and beer list if you wanna spent that per diem.