PHL to BOS flight delays & on-time performance
Nonstop flights from Philadelphia International Airport to Boston Logan International Airport · 280 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at PHL or BOS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Philadelphia (PHL) to Boston (BOS) arrived on time 75% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 3% were cancelled, and 12% arrived an hour or more late.
- Republic Airways was the most punctual airline here (81% on time); American Airlines was the least (71%).
- Departures scheduled around 6am did best (93% on time); around 5pm did worst (59%).
- Saturday was the most reliable day to fly (82% on time) and Sunday the least (71%).
- The largest source of delay minutes was late-arriving aircraft (43%).
Which airline is most on time from PHL to BOS?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Frontier Airlines | 91% | 0.0% | 5 min | 2.3% | 43 |
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 81% | 3.3% | 15 min | 9.3% | 1,771 |
| JetBlue | 73% | 3.4% | 20 min | 12.5% | 892 |
| American Airlines | 71% | 2.8% | 24 min | 13.7% | 2,272 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am93%564 flights
- 7am87%214 flights
- 8am83%477 flights
- 9am90%289 flights
- 10am84%506 flights
- 11am88%200 flights
- 12pm75%200 flights
- 1pm71%334 flights
- 2pm61%136 flights
- 3pm61%351 flights
- 4pm67%235 flights
- 5pm59%448 flights
- 6pm60%305 flights
- 7pm63%309 flights
- 8pm59%99 flights
- 9pm73%218 flights
- 10pm67%92 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday71%5.8% cancelled
- Tuesday75%3.9% cancelled
- Wednesday79%1.7% cancelled
- Thursday74%1.5% cancelled
- Friday75%0.8% cancelled
- Saturday82%2.4% cancelled
- Sunday71%5.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft43%
- Air traffic control & airport congestion31%
- Airline (crew, maintenance, cleaning, fueling)21%
- Extreme weather6%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather56%
- Air traffic control & airport congestion26%
- Airline (crew, maintenance, cleaning, fueling)19%
- Security0%
PHL to BOS: common questions
- How often are PHL to BOS flights on time?
- 75% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Philadelphia to Boston cancelled?
- 3.0% of scheduled flights were cancelled (151 of 4,978).
- How long are typical delays?
- Across all flights the average arrival delay was 20 min (early arrivals count as zero). Flights that were late arrived 78 min behind schedule on average, and 11.8% of flights were an hour or more late.
- How long is taxi time at PHL?
- Flights on this route spent 22 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BOS to PHL — 77% on time
More flights from Philadelphia
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: PHL → BOS, nonstop flights by US airlines that report to the DOT. How we calculate this.