WN3120 MDW → DAL

Southwest Airlines · Chicago, IL to Dallas, TX · 31 flights observed, 2025-10-02 to 2025-11-01 · 793 mi

This flight's reliability varies a lot by day of week — 100% on-time on Thursdays vs. 60% on Saturdays.

WN3120 covers more than one route in the data window — the stats below are for MDW → DAL, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
73%
Median delay
-2 min
90th percentile
+48 min
Cancellation rate
3%

How often is WN3120 on time?

Across 31 flights on MDW → DAL from 2025-10-02 to 2025-11-01, WN3120 arrived within 15 minutes of schedule 73% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +48 min or later. 3% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2273%
16-30 min27%
31-60 min413%
61-120 min13%
2+ hrs13%

Performance by month

MonthFlightsOn-timeAvg delay
2025-102972%+9 min
2025-111100%-19 min

Performance by day of week

DayFlightsOn-time
Mon475%
Tue450%
Wed4100%
Thu5100%
Fri475%
Sat560%
Sun450%

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