DAL → DCA Southwest Airlines

Southwest Airlines · Dallas, TX to Washington, DC · 1,735 flights, 2025-07-01 to 2026-06-30 · aggregated across 86 flight numbers

This route runs much more reliably at some times of day than others — 91% on-time departing 6–9am vs. 50% departing 6–9pm.
On-time arrival
69%
Median delay
+2 min
90th percentile
+64 min
Cancellation rate
2%

How on-time is Southwest Airlines from DAL to DCA?

Across every Southwest Airlines flight number on DAL → DCA (1,735 flights, 2025-07-01 to 2026-06-30), 69% arrived within 15 minutes of schedule. Median arrival delay +2 min; the worst 10% ran +64 min or later. 2% were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1,16569%
16-30 min17710%
31-60 min16610%
61-120 min1106%
2+ hrs775%

Performance by month

MonthFlightsOn-timeAvg delay
2025-0714364%+20 min
2025-0814478%+3 min
2025-0914278%+4 min
2025-1014566%+14 min
2025-1113575%+18 min
2025-1214979%+4 min
2026-0113579%+12 min
2026-0212966%+11 min
2026-0314554%+29 min
2026-0414364%+19 min
2026-0514363%+24 min
2026-0614258%+26 min

Performance by day of week

DayFlightsOn-time
Mon25871%
Tue26276%
Wed25667%
Thu25364%
Fri24863%
Sat17380%
Sun24564%

Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…