DL378 ATL → DCA

Delta Air Lines · Atlanta, GA to Washington, DC · 262 flights observed, 2025-07-02 to 2026-06-30 · 547 mi

This flight's reliability varies a lot by day of week — 100% on-time on Tuesdays vs. 51% on Thursdays.

DL378 covers more than one route in the data window — the stats below are for ATL → DCA, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
65%
Median delay
+2 min
90th percentile
+73 min
Cancellation rate
3%

How often is DL378 on time?

Across 262 flights on ATL → DCA from 2025-07-02 to 2026-06-30, DL378 arrived within 15 minutes of schedule 65% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +73 min or later. 3% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time16465%
16-30 min2811%
31-60 min239%
61-120 min2911%
2+ hrs104%

Performance by month

MonthFlightsOn-timeAvg delay
2025-072227%+72 min
2025-082759%+17 min
2025-092291%-3 min
2025-102282%+2 min
2025-112075%+20 min
2025-121275%+8 min
2026-012065%+17 min
2026-021947%+18 min
2026-032250%+32 min
2026-042181%+6 min
2026-052255%+22 min
2026-062572%+59 min

Performance by day of week

DayFlightsOn-time
Mon4978%
Tue5100%
Wed4963%
Thu4751%
Fri4659%
Sat1283%
Sun4663%

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