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Delta Air Lines / ATL → DCA

DL 737 on time

Delta Air Lines 737: Atlanta to Washington at 11:00 a.m.; Washington to Atlanta at 1:40 p.m. (past 12 months). Figures below the title are for ATL → DCA, its busiest leg

On time
77%
336 flights · likely 72–81%
Cancelled
2.1%
of scheduled flights
Typical arrival
−1 min
median vs schedule
When late
+53 min
average delay
Similar flights
77%
DL, same route & hour

About 1 in 4 DL 737 flights from Atlanta arrived 15+ minutes late, diverted or cancelled over the past year (23%); 2.1% were cancelled. The typical flight landed 1 minutes early.

DL 737: ATL → DCA

Scheduled to leave Atlanta at 11:00 a.m. local time. Over the past year it arrived on time 77% of the time (336 flights), in line with other DL flights on the route at that hour (77%). Last seen in the data Aug 2, 2026.

Month by month

40%70%100%Sep 2025: 90% on time (30 flights)90SepOct 2025: 94% on time (31 flights)94OctNov 2025: 73% on time (30 flights)73NovDec 2025: 65% on time (31 flights)65DecJan 2026: 71% on time (31 flights)71JanFeb 2026: 82% on time (28 flights)82FebMar 2026: 68% on time (31 flights)68MarApr 2026: 77% on time (30 flights)77AprMay 2026: 87% on time (31 flights)87MayJun 2026: 83% on time (30 flights)83JunJul 2026: 61% on time (31 flights)61JulAug 2026: too few flights (2 flights)Aug

By day of week

DayFlightsOn time
Monday4869%
Tuesday4888%
Wednesday4877%
Thursday4888%
Friday4881%
Saturday4865%
Sunday4873%

Why it was late

Airline (crew, maintenance, ops) 54%Air traffic & airport (NAS) 30%Late inbound plane 12%Severe weather 4%

All flights ATL → DCA · Connecting off DL 737? Check the risk

DL 737: DCA → ATL

Scheduled to leave Washington at 1:40 p.m. local time. Over the past year it arrived on time 72% of the time (312 flights), in line with other DL flights on the route at that hour (72%). Last seen in the data Aug 31, 2026.

Month by month

30%65%100%Sep 2025: 77% on time (30 flights)77SepOct 2025: 81% on time (31 flights)81OctNov 2025: 73% on time (30 flights)73NovDec 2025: 68% on time (19 flights)68DecJan 2026: 74% on time (27 flights)74JanFeb 2026: 86% on time (28 flights)86FebMar 2026: 68% on time (31 flights)68MarApr 2026: 93% on time (30 flights)93AprMay 2026: too few flights (6 flights)MayJun 2026: 71% on time (24 flights)71JunJul 2026: 44% on time (27 flights)44JulAug 2026: 52% on time (29 flights)52Aug

By day of week

DayFlightsOn time
Monday4764%
Tuesday4678%
Wednesday4676%
Thursday4576%
Friday4571%
Saturday3974%
Sunday4468%

Why it was late

Late inbound plane 43%Air traffic & airport (NAS) 35%Airline (crew, maintenance, ops) 22%

All flights DCA → ATL · Connecting off DL 737? Check the risk

Questions

How often is DL 737 from ATL to DCA late?

Delta Air Lines 737 from Atlanta, GA to Washington, DC arrived 15 or more minutes late, was diverted or was cancelled on 23% of 336 scheduled flights between September 2025 and August 2026. 2.1% were cancelled.

How often is DL 737 from DCA to ATL late?

Delta Air Lines 737 from Washington, DC to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 28% of 312 scheduled flights between September 2025 and August 2026. 1.6% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Delta Air Lines for today's flight. Method.