Route
STL → PHL
St. Louis Lambert International Airport Philadelphia International Airport
How punctual is this route?
- On-time arrivals
- 78.7%
- Less than 15 minutes late
- Cancelled
- 1.8%
- Of scheduled flights
- Average delay when late
- 92 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,606
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 53%
- Airline (crew, maintenance, cleaning) 34%
- Air traffic control & airport 9%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 81.8% | 132 |
| October 2025 | 82.2% | 147 |
| November 2025 | 84.5% | 162 |
| December 2025 | 78.2% | 148 |
| January 2026 | 88.7% | 102 |
| February 2026 | 93.5% | 84 |
| March 2026 | 73.0% | 116 |
| April 2026 | 85.9% | 129 |
| May 2026 | 70.4% | 143 |
| June 2026 | 77.4% | 147 |
| July 2026 | 74.1% | 150 |
| August 2026 | 62.9% | 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 | 725 | 72.6% | 0.4% | 63 min |
| American Airlines | 624 | 84.6% | 2.4% | 139 min |
| OH | 162 | 78.9% | 6.2% | 120 min |
| Republic Airways | 95 | 86.2% | 1.1% | 121 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
AA1308
9% late · 175 flights
-
AA2714
29% late · 74 flights
-
AA3049
33% late · 67 flights
-
AA2275
14% late · 65 flights
-
AA2720
11% late · 65 flights
-
WN3022
30% late · 58 flights
-
WN3814
4% late · 58 flights
-
AA3162
13% late · 54 flights
-
WN3966
50% late · 52 flights
-
OH5623
10% late · 48 flights
-
WN676
30% late · 46 flights
-
WN2334
13% late · 45 flights
-
WN3727
31% late · 42 flights
-
YX4796
15% late · 41 flights
-
AA3130
11% late · 38 flights
-
YX4759
14% late · 37 flights
-
WN3686
45% late · 33 flights
-
WN1049
19% late · 31 flights
-
WN4504
19% late · 31 flights
-
WN4080
17% late · 30 flights
-
AA1739
19% late · 28 flights
-
WN2336
36% late · 28 flights
-
WN1794
22% late · 27 flights
-
WN3222
11% late · 27 flights
Reviews
No reviews yet. Be the first to review this route.