Route Reliability
Philadelphia → Boston
PHL–BOS · 280 miles · Philadelphia International Airport to Boston Logan International Airport
- 75%
- Arrive within 15 minutes
- 11 min
- Average arrival delay
- 3.0%
- Cancelled
- 4,911
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Delta Air Lines80%1,170 flights
- 2.American Airlines74%2,782 flights
- 3.JetBlue Airways72%894 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.
PHL–BOS flights departing between 6–9 AM arrived on time 89% of the time, versus 61% between 6–9 PM.
Skip Monday if you can.
PHL–BOS flights arrived on time 83% of the time on Saturdays. On Mondays: 71%.
Delta Air Lines runs this route best.
Delta Air Lines arrived on time 80% of the time on this route; JetBlue Airways managed 72%.
Keep a backup plan handy.
This route was cancelled 3.0% 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
- Mon71%(703 flights)
- Tue76%(694 flights)
- Wed80%(678 flights)
- Thu73%(728 flights)
- Fri75%(722 flights)
- Sat83%(525 flights)
- Sun72%(715 flights)
- 3–6 AM—(1 flights)
- 6–9 AM89%(1218 flights)
- 9 AM–12 PM86%(975 flights)
- 12–3 PM69%(671 flights)
- 3–6 PM62%(1012 flights)
- 6–9 PM61%(582 flights)
- 9 PM–12 AM72%(306 flights)
Jun 72% → May 82% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 72% | 402 |
| July 2025 | 68% | 392 |
| August 2025 | 78% | 400 |
| September 2025 | 62% | 417 |
| October 2025 | 65% | 455 |
| November 2025 | 83% | 396 |
| December 2025 | 76% | 359 |
| January 2026 | 80% | 336 |
| February 2026 | 83% | 332 |
| March 2026 | 78% | 425 |
| April 2026 | 81% | 419 |
| May 2026 | 82% | 432 |
Keep nerding
Based on 4,911 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.