WN3173 DCA → MDW

Southwest Airlines · Washington, DC to Chicago, IL · 45 flights observed, 2025-11-02 to 2026-01-05 · 601 mi

This flight's reliability varies a lot by day of week — 100% on-time on Sundays vs. 38% on Thursdays.

WN3173 covers more than one route in the data window — the stats below are for DCA → MDW, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
64%
Median delay
+6 min
90th percentile
+98 min
Cancellation rate
2%

How often is WN3173 on time?

Across 45 flights on DCA → MDW from 2025-11-02 to 2026-01-05, WN3173 arrived within 15 minutes of schedule 64% of the time. The median arrival delay was +6 min, and the worst 10% of flights arrived +98 min or later. 2% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2864%
16-30 min49%
31-60 min49%
61-120 min511%
2+ hrs37%

Performance by month

MonthFlightsOn-timeAvg delay
2025-112255%+40 min
2025-122075%+11 min
2026-01250%+6 min

Performance by day of week

DayFlightsOn-time
Mon757%
Tue650%
Wed888%
Thu838%
Fri650%
Sat475%
Sun5100%

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