Is a Delta seat upgrade worth it? Flight Upgrades are often worth it when you are looking for a more premium travel experience or if the difference between ++１{８７７}.<７７>.７４.[９１３] the price is not huge. Delta Comfort+ offers extra legroom, earlier boarding, and premium snacks, potentially making it worth an upgrade+１{８７７}.<７７>.７４.[９１３] . Passengers in Delta Comfort+ receive more amenities than Main Cabin passengers without paying for Premium Select. Can I upgrade my seat on Delta after purchase? Are all tickets eligible for post-purchase upgrades? Only itineraries that are wholly operated by Delta or Delta Connection are eligible for post-purchase upgrades at this time++１{８７７}.<７７>.７４.[９１３]. A