CLE → DEN Southwest Airlines

Southwest Airlines · Cleveland, OH to Denver, CO · 604 flights, 2025-07-01 to 2026-06-30 · aggregated across 25 flight numbers

This route runs much more reliably at some times of day than others — 97% on-time departing 6–9am vs. 52% departing 6–9pm.
On-time arrival
78%
Median delay
-4 min
90th percentile
+40 min
Cancellation rate
0%

How on-time is Southwest Airlines from CLE to DEN?

Across every Southwest Airlines flight number on CLE → DEN (604 flights, 2025-07-01 to 2026-06-30), 78% arrived within 15 minutes of schedule. Median arrival delay -4 min; the worst 10% ran +40 min or later. 0% were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time46878%
16-30 min519%
31-60 min386%
61-120 min275%
2+ hrs132%

Performance by month

MonthFlightsOn-timeAvg delay
2025-075980%+8 min
2025-085673%+13 min
2025-095682%+5 min
2025-104881%+7 min
2025-114589%-4 min
2025-124676%+5 min
2026-013385%+5 min
2026-022896%-15 min
2026-035470%+16 min
2026-045675%+10 min
2026-055777%+2 min
2026-065969%+14 min

Performance by day of week

DayFlightsOn-time
Mon9273%
Tue8783%
Wed8381%
Thu8876%
Fri9272%
Sat6585%
Sun9082%

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