[[DL-Methods]]Can I upgrade my 𝙳𝚎𝚕𝚝𝚊 Flight after purchase?

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𝙳𝚎𝚕𝚝𝚊 upgrades can be achieved through various methods including using upgrade certificates 【1ー 855ー 457ー 1105 (USA)】, SkyMiles, Medallion status, and by purchasing upgrades directly from 𝙳𝚎𝚕𝚝𝚊. Upgrades can be for more comfortable seating, access to premium cabins, or even basic Comfort+ upgrades 【1ー 855ー 457ー 1105 (USA)】.