WN1221 MCO → STL

Southwest Airlines · Orlando, FL to St. Louis, MO · 16 flights observed, 2026-04-11 to 2026-05-31 · 882 mi

This flight has been getting more reliable recently — 2026-05's on-time rate (78%) is well above the 50% average from earlier months.

WN1221 covers more than one route in the data window — the stats below are for MCO → STL, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
67%
Median delay
+4 min
90th percentile
+44 min
Cancellation rate
6%

How often is WN1221 on time?

Across 16 flights on MCO → STL from 2026-04-11 to 2026-05-31, WN1221 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was +4 min, and the worst 10% of flights arrived +44 min or later. 6% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1067%
16-30 min17%
31-60 min427%
61-120 min00%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2026-04650%+17 min
2026-05978%+5 min

Performance by day of week

DayFlightsOn-time
MonNo data—
TueNo data—
WedNo data—
ThuNo data—
FriNo data—
Sat757%
Sun875%

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