Route Reliability
Boston → Philadelphia
BOS–PHL · 280 miles · Boston Logan International Airport to Philadelphia International Airport
- 76%
- Arrive within 15 minutes
- 12 min
- Average arrival delay
- 3.1%
- Cancelled
- 4,915
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Delta Air Lines79%1,170 flights
- 2.American Airlines76%2,787 flights
- 3.JetBlue Airways72%893 flights
Not enough history to rank: Frontier Airlines (65 flights). We rank airlines only after 100 flights on the route.
What the data says
Morning-you made the right choice.
BOS–PHL flights departing between 3–6 AM arrived on time 95% of the time, versus 32% between 9 PM–12 AM.
Sunday scaries are real for this one.
BOS–PHL flights arrived on time 84% of the time on Saturdays. On Sundays: 73%.
Delta Air Lines has a slight edge here.
Delta Air Lines arrived on time 79% of the time on this route; JetBlue Airways managed 72%.
Keep a backup plan handy.
This route was cancelled 3.1% of the time. Typical for U.S. flights is around 1–2%.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon73%(701 flights)
- Tue78%(693 flights)
- Wed80%(679 flights)
- Thu73%(727 flights)
- Fri74%(721 flights)
- Sat84%(524 flights)
- Sun73%(714 flights)
- 3–6 AM95%(154 flights)
- 6–9 AM89%(1118 flights)
- 9 AM–12 PM85%(988 flights)
- 12–3 PM75%(533 flights)
- 3–6 PM68%(1057 flights)
- 6–9 PM59%(887 flights)
- 9 PM–12 AM32%(22 flights)
Jun 70% → May 80% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 70% | 395 |
| July 2025 | 68% | 393 |
| August 2025 | 80% | 402 |
| September 2025 | 78% | 420 |
| October 2025 | 68% | 456 |
| November 2025 | 84% | 394 |
| December 2025 | 78% | 356 |
| January 2026 | 79% | 338 |
| February 2026 | 80% | 330 |
| March 2026 | 73% | 424 |
| April 2026 | 77% | 419 |
| May 2026 | 80% | 432 |
Keep nerding
Based on 4,915 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.