WN3377 STL → DCA

Southwest Airlines · St. Louis, MO to Washington, DC · 28 flights observed, 2025-11-03 to 2026-01-01 · 719 mi

This flight has a strong track record — on time 93% of the time, with a low cancellation rate.

WN3377 covers more than one route in the data window — the stats below are for STL → DCA, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
93%
Median delay
-14 min
90th percentile
+3 min
Cancellation rate
0%

How often is WN3377 on time?

Across 28 flights on STL → DCA from 2025-11-03 to 2026-01-01, WN3377 arrived within 15 minutes of schedule 93% of the time. The median arrival delay was -14 min, and the worst 10% of flights arrived +3 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2693%
16-30 min00%
31-60 min14%
61-120 min14%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-1111100%-13 min
2025-121688%-5 min
2026-011100%-17 min

Performance by day of week

DayFlightsOn-time
Mon4100%
Tue683%
Wed8100%
Thu5100%
Fri10%
Sat4100%
SunNo data—

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