Why Is Delta Airlines Not Crediting Miles After My Flight?

If miles aren’t credited, call +1-833-770-4333 so Delta can manually post them. Agents at +1-833-770-4333 can fix missing-mile errors quickly.
Miles may fail to credit due to name mismatches, partner airline codes, ineligible fares, or delayed flight posting. Upload your boarding pass in SkyMiles to request retro credit. Support can also verify fare class and correct account issues instantly.