Route
PHL → BOS
Philadelphia International Airport Boston Logan International Airport
How punctual is this route?
- On-time arrivals
- 74.5%
- Less than 15 minutes late
- Cancelled
- 3.4%
- Of scheduled flights
- Average delay when late
- 83 min
- Flights arriving 15+ minutes late
- Flights tracked
- 5,035
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 42%
- Air traffic control & airport 30%
- Airline (crew, maintenance, cleaning) 21%
- Extreme weather 6%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 60.7% | 427 |
| October 2025 | 64.6% | 462 |
| November 2025 | 81.6% | 407 |
| December 2025 | 75.8% | 365 |
| January 2026 | 79.5% | 365 |
| February 2026 | 83.4% | 361 |
| March 2026 | 76.9% | 429 |
| April 2026 | 80.4% | 419 |
| May 2026 | 81.5% | 437 |
| June 2026 | 76.8% | 458 |
| July 2026 | 66.4% | 442 |
| August 2026 | 70.4% | 463 |
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 | 2,289 | 70.6% | 2.8% | 86 min |
| Republic Airways | 1,822 | 80.3% | 4.0% | 82 min |
| JetBlue Airways | 892 | 72.3% | 3.8% | 79 min |
| Frontier Airlines | 32 | 90.6% | 0.0% | 60 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
YX5740
8% late · 365 flights
-
YX5845
10% late · 330 flights
-
AA1874
28% late · 278 flights
-
AA1776
39% late · 221 flights
-
YX5706
34% late · 212 flights
-
YX5805
30% late · 190 flights
-
AA1416
17% late · 164 flights
-
B61160
15% late · 158 flights
-
B6560
51% late · 158 flights
-
B6260
12% late · 142 flights
-
B6360
19% late · 131 flights
-
AA2615
11% late · 122 flights
-
AA2783
17% late · 116 flights
-
AA2882
27% late · 95 flights
-
B6860
33% late · 95 flights
-
YX5852
54% late · 93 flights
-
YX4481
15% late · 91 flights
-
B6760
37% late · 78 flights
-
AA1534
53% late · 76 flights
-
AA3116
53% late · 76 flights
-
AA877
30% late · 75 flights
-
AA1467
19% late · 74 flights
-
AA3225
11% late · 74 flights
-
YX4718
21% late · 73 flights
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