Route
PHL → IAH
Philadelphia International Airport George Bush Intercontinental Airport
How punctual is this route?
- On-time arrivals
- 81.7%
- Less than 15 minutes late
- Cancelled
- 1.9%
- Of scheduled flights
- Average delay when late
- 89 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,878
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 39%
- Airline (crew, maintenance, cleaning) 27%
- Air traffic control & airport 27%
- Extreme weather 6%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 81.0% | 137 |
| October 2025 | 85.0% | 161 |
| November 2025 | 86.5% | 150 |
| December 2025 | 78.6% | 157 |
| January 2026 | 83.7% | 145 |
| February 2026 | 91.8% | 127 |
| March 2026 | 86.8% | 147 |
| April 2026 | 85.4% | 159 |
| May 2026 | 75.8% | 166 |
| June 2026 | 74.0% | 187 |
| July 2026 | 77.3% | 169 |
| August 2026 | 78.8% | 173 |
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 |
|---|---|---|---|---|
| United Airlines | 954 | 85.7% | 1.0% | 92 min |
| American Airlines | 724 | 78.1% | 3.2% | 90 min |
| OH | 92 | 77.3% | 2.2% | 81 min |
| Frontier Airlines | 72 | 67.6% | 1.4% | 65 min |
| Republic Airways | 36 | 83.3% | 0.0% | 141 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA2038
14% late · 190 flights
-
UA2474
15% late · 148 flights
-
UA584
4% late · 136 flights
-
AA1533
20% late · 116 flights
-
UA2197
11% late · 84 flights
-
AA678
13% late · 79 flights
-
AA3021
31% late · 75 flights
-
F92153
32% late · 72 flights
-
AA1925
19% late · 71 flights
-
AA1927
21% late · 69 flights
-
AA889
25% late · 61 flights
-
UA2430
38% late · 56 flights
-
AA2153
14% late · 44 flights
-
AA699
34% late · 44 flights
-
UA2611
8% late · 37 flights
-
UA1823
9% late · 36 flights
-
UA2417
3% late · 31 flights
-
AA2427
21% late · 29 flights
-
AA3140
24% late · 26 flights
-
OH5177
28% late · 26 flights
-
UA2016
16% late · 26 flights
-
OH5050
8% late · 25 flights
-
UA589
4% late · 24 flights
-
AA840
17% late · 23 flights
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