Route
MDW → DEN
Chicago Midway International Airport Denver International Airport
How punctual is this route?
- On-time arrivals
- 72.9%
- Less than 15 minutes late
- Cancelled
- 1.3%
- Of scheduled flights
- Average delay when late
- 64 min
- Flights arriving 15+ minutes late
- Flights tracked
- 2,259
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 40%
- Air traffic control & airport 29%
- Airline (crew, maintenance, cleaning) 28%
- Extreme weather 2%
- Security 1%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 85.1% | 202 |
| October 2025 | 81.1% | 213 |
| November 2025 | 81.9% | 188 |
| December 2025 | 58.5% | 197 |
| January 2026 | 81.0% | 158 |
| February 2026 | 78.3% | 139 |
| March 2026 | 66.5% | 169 |
| April 2026 | 73.0% | 161 |
| May 2026 | 76.5% | 163 |
| June 2026 | 64.2% | 220 |
| July 2026 | 74.4% | 235 |
| August 2026 | 58.1% | 214 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Southwest Airlines | 2,203 | 72.9% | 1.3% | 64 min |
| Frontier Airlines | 56 | 70.4% | 1.8% | 67 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN2769
39% late · 61 flights
-
WN2770
45% late · 60 flights
-
WN474
8% late · 59 flights
-
WN2539
48% late · 58 flights
-
WN3262
5% late · 58 flights
-
WN3404
21% late · 58 flights
-
WN4488
23% late · 57 flights
-
WN1642
37% late · 55 flights
-
WN1684
21% late · 53 flights
-
WN2960
23% late · 52 flights
-
WN2765
16% late · 51 flights
-
WN2989
2% late · 51 flights
-
WN1399
27% late · 50 flights
-
WN971
35% late · 47 flights
-
WN2012
15% late · 46 flights
-
WN3285
27% late · 46 flights
-
WN2768
49% late · 44 flights
-
WN3697
33% late · 41 flights
-
WN1418
13% late · 38 flights
-
WN4535
21% late · 36 flights
-
F92209
34% late · 33 flights
-
WN117
29% late · 33 flights
-
WN2965
70% late · 33 flights
-
WN3515
47% late · 33 flights
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