Can You Use Delta Air Lines SkyMiles To Upgrade On Other Carriers?

Delta SkyMiles is one of the world’s most popular and valuable loyalty programs. With the airline being part of the SkyTeam alliance, it offers numerous ways to earn and redeem miles even if you are not flying on Delta-operated flights. Many loyal customers save their miles to redeem for upgrades and get a chance to experience the premium cabins. Now, the question is, can you use your SkyMiles to get upgraded on another airline? The answer is yes, but only with a few airlines and under certain conditions.