- D0
- Data Point
- Data Point Hero
- DCA
- Dead Deal
- Deadhead (DH)
- Deal Alert
- Death Star
- Debit Gift Card
- Deltalina
- Delta SkyPesos
- DEN (Denver International)
- Deplane Surge
- Devaluation
- Devaluation Clairvoyance
- Devaluation PTSD
- Deval Watcher
- Devil’s Chariot
- D Fare
- DFW (Dallas/Fort Worth)
- Direct Connect
- Direct Flight
- Diversion
- DL (Delta Air Lines)
- DNF
- DOH (Doha Hamad)
- DOM
- dot loyalty probe
- Double Dip
- Double Open-Jaw
- DP (Data Point)
- DPTR
- drink chits
- DSPCH
- DSTN
- DTCH
- DUB (Dublin)
- DYKWIA
- Dynamic Pain Pricing
- Dynamic Pricing
