DL506 MIA → SEA

Delta Air Lines · Miami, FL to Seattle, WA · 263 flights observed, 2025-07-01 to 2026-06-06 · 2,724 mi

DL506 covers more than one route in the data window — the stats below are for MIA → SEA, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
60%
Median delay
+8 min
90th percentile
+77 min
Cancellation rate
2%

How often is DL506 on time?

Across 263 flights on MIA → SEA from 2025-07-01 to 2026-06-06, DL506 arrived within 15 minutes of schedule 60% of the time. The median arrival delay was +8 min, and the worst 10% of flights arrived +77 min or later. 2% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time15360%
16-30 min3012%
31-60 min4016%
61-120 min177%
2+ hrs166%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073067%+4 min
2025-083148%+51 min
2025-093053%+49 min
2025-103184%0 min
2025-112861%+51 min
2025-121872%+61 min
2026-021759%+41 min
2026-032846%+37 min
2026-041233%+65 min
2026-052564%+15 min
2026-06650%+40 min

Performance by day of week

DayFlightsOn-time
Mon3647%
Tue3778%
Wed3574%
Thu3853%
Fri3749%
Sat3863%
Sun3554%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…