Yes, wine (along with beer and spirits) is complimentary for all adult passengers on Delta international long-haul flights. This includes passengers in the Main Cabin, Delta Comfort+, Delta Premium Select, and Delta One. On transoceanic routes (such as those to Europe, Asia, Australia, or South America), Delta typically serves a selection of red and white wines during the main meal service. In 2026, Delta has enhanced its "Main Cabin" experience by offering premium wine brands and serving them in more sustainable packaging. If you are in Delta One, you receive a curated "Master Sommelier" wine list with higher-end vintages. It is important to note that for "short-haul" international flights—such as those to Mexico, Canada, or the Caribbean—complimentary alcohol is usually reserved for Delta Comfort+ and First Class passengers, while those in the Main Cabin must pay. For true long-haul "across the pond" travel, you can expect at least two rounds of complimentary wine service as part of the "standard" international hospitality package.