Route
PHL → SFO
Philadelphia International Airport San Francisco International Airport
Alerts at PHL and SFO
How punctual is this route?
- On-time arrivals
- 71.9%
- Less than 15 minutes late
- Cancelled
- 1.2%
- Of scheduled flights
- Average delay when late
- 84 min
- Flights arriving 15+ minutes late
- Flights tracked
- 2,085
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 44%
- Airline (crew, maintenance, cleaning) 23%
- Late-arriving aircraft 21%
- Extreme weather 13%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 87.3% | 167 |
| October 2025 | 80.6% | 180 |
| November 2025 | 85.7% | 147 |
| December 2025 | 64.6% | 159 |
| January 2026 | 71.6% | 125 |
| February 2026 | 78.6% | 117 |
| March 2026 | 83.0% | 148 |
| April 2026 | 71.0% | 162 |
| May 2026 | 69.2% | 211 |
| June 2026 | 57.5% | 230 |
| July 2026 | 62.9% | 234 |
| August 2026 | 65.9% | 205 |
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 |
|---|---|---|---|---|
| American Airlines | 1,335 | 73.2% | 1.6% | 84 min |
| United Airlines | 750 | 69.7% | 0.5% | 85 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA1575
44% late · 258 flights
-
AA2663
39% late · 193 flights
-
AA1524
16% late · 165 flights
-
AA3079
21% late · 157 flights
-
UA2661
10% late · 144 flights
-
AA2407
23% late · 122 flights
-
AA2045
38% late · 119 flights
-
UA1048
19% late · 108 flights
-
AA1826
22% late · 99 flights
-
AA3295
24% late · 98 flights
-
UA1973
16% late · 97 flights
-
UA267
48% late · 82 flights
-
AA3166
43% late · 75 flights
-
AA2793
16% late · 44 flights
-
AA2797
18% late · 44 flights
-
AA522
41% late · 30 flights
-
AA2035
4% late · 28 flights
-
AA2184
11% late · 27 flights
-
AA2506
41% late · 27 flights
-
AA3207
15% late · 26 flights
-
AA746
18% late · 24 flights
-
UA1497
24% late · 21 flights
-
UA768
48% late · 21 flights
-
AA2676
6% late · 20 flights
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