How often is DL3821 on time?

Across 172 flights on SJC → SLC from 2025-07-01 to 2025-12-19, DL3821 arrived within 15 minutes of schedule 96% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived +2 min or later. 1% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

Performance by month

Performance by day of week

Other routes

• DL3821 on SDF → DTW (143 flights)
• DL3821 on DTW → SDF (108 flights)
• DL3821 on SLC → SMF (1 flights)
• DL3821 on SMF → SLC (1 flights)
• DL3821 on SHV → ATL (16 flights)
• DL3821 on SLC → SJC (172 flights)

Related

• All Delta Air Lines flights on SJC → SLC
• Compare airlines on SJC → SLC
• Delta Air Lines on the return, SLC → SJC