Yes, nearly all major full-service airlines in 2026 serve alcohol, though policies vary by cabin and flight length. Delta Air Lines provides complimentary beer, wine, and spirits on all long-haul international flights and for premium cabin passengers (Delta One, First Class) on domestic routes. In Main Cabin (Economy) on domestic flights over 250 miles, alcohol is usually available for purchase via tap-to-pay. Southwest Airlines also serves a variety of spirits, wine, and beer for purchase (typically around $9) on most flights. Some international carriers from the Middle East or Southeast Asia provide extensive complimentary bar services even in Economy. However, a few "dry" airlines, primarily based in specific Islamic countries (such as Saudi Arabian Airlines or Iran Air), do not serve or allow alcohol on board at all.