LAS → DCA Southwest Airlines

Southwest Airlines · Las Vegas, NV to Washington, DC · 365 flights, 2025-07-01 to 2026-06-30 · aggregated across 19 flight numbers

On-time arrival
73%
Median delay
+1 min
90th percentile
+43 min
Cancellation rate
1%

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

Across every Southwest Airlines flight number on LAS → DCA (365 flights, 2025-07-01 to 2026-06-30), 73% arrived within 15 minutes of schedule. Median arrival delay +1 min; the worst 10% ran +43 min or later. 1% were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time26073%
16-30 min4111%
31-60 min4011%
61-120 min154%
2+ hrs21%

Performance by month

MonthFlightsOn-timeAvg delay
2025-072846%+21 min
2025-083083%+5 min
2025-093067%+13 min
2025-103158%+16 min
2025-113080%+6 min
2025-123181%-3 min
2026-013087%-4 min
2026-022767%+11 min
2026-033181%+8 min
2026-043087%-6 min
2026-053168%+3 min
2026-062966%+6 min

Performance by day of week

DayFlightsOn-time
Mon5161%
Tue5273%
Wed5161%
Thu5273%
Fri5072%
Sat5288%
Sun5080%

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