Beer: $6 for Miller Lite or Dos Equis, $7 for premium beer including Fat Tire, Lagunitas and Leinenkugel's Summer Shandy.
Wine: $6.
Liquor: $7.

The price increase won't affect passengers who use Southwest's coveted drink coupons.

Southwest also offers passengers one free drink on a handful of "holidays'' throughout the year. The remaining days this year: St. Patrick’s Day, Southwest Airlines’ birthday (June 18) and Halloween.