Route
MDW → PHL
Chicago Midway International Airport Philadelphia International Airport
How punctual is this route?
- On-time arrivals
- 74.9%
- Less than 15 minutes late
- Cancelled
- 1.7%
- Of scheduled flights
- Average delay when late
- 69 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,513
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 31%
- Air traffic control & airport 30%
- Late-arriving aircraft 29%
- Extreme weather 10%
- Security 1%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 82.4% | 159 |
| October 2025 | 81.9% | 155 |
| November 2025 | 81.4% | 136 |
| December 2025 | 66.4% | 122 |
| January 2026 | 79.6% | 96 |
| February 2026 | 77.8% | 84 |
| March 2026 | 65.9% | 93 |
| April 2026 | 86.4% | 111 |
| May 2026 | 68.9% | 119 |
| June 2026 | 76.3% | 142 |
| July 2026 | 68.3% | 150 |
| August 2026 | 62.6% | 146 |
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 | 1,457 | 74.7% | 1.8% | 66 min |
| Frontier Airlines | 56 | 80.4% | 0.0% | 162 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN3064
33% late · 62 flights
-
WN4351
44% late · 60 flights
-
WN2441
17% late · 58 flights
-
WN3611
45% late · 58 flights
-
F94368
20% late · 56 flights
-
WN4122
8% late · 52 flights
-
WN4948
45% late · 52 flights
-
WN1906
30% late · 50 flights
-
WN3336
4% late · 50 flights
-
WN1030
16% late · 47 flights
-
WN2617
17% late · 47 flights
-
WN4263
55% late · 44 flights
-
WN2470
15% late · 41 flights
-
WN1378
36% late · 33 flights
-
WN1625
33% late · 33 flights
-
WN745
38% late · 33 flights
-
WN2934
23% late · 31 flights
-
WN3628
13% late · 31 flights
-
WN3672
16% late · 31 flights
-
WN3954
35% late · 31 flights
-
WN2846
32% late · 28 flights
-
WN3978
23% late · 28 flights
-
WN1838
0% late · 27 flights
-
WN2234
7% late · 27 flights
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