Slow going in the US, too; mostly the niche airlines:
[list:257wt6wi]Frontier serves Fat Tire and did serve Oskar Blues PA at one point
Alaskan servers Alaskan Amber
Virgin America serves 21st Amendment IPA
Jet Blue serves Sam Adams Boston Lager[/list:u:257wt6wi]
Note the major US airlines' conspicuous absence:
American/USAir, Delta, and United/Continental.