PHX to BOS flight delays & on-time performance
Nonstop flights from Phoenix Sky Harbor International Airport to Boston Logan International Airport · 2,300 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at PHX or BOS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Phoenix (PHX) to Boston (BOS) arrived on time 77% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.8% were cancelled, and 9% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (77% on time); JetBlue was the least (72%).
- Departures scheduled around 9am did best (88% on time); around 3pm did worst (65%).
- Monday was the most reliable day to fly (82% on time) and Thursday the least (71%).
- The largest source of delay minutes was late-arriving aircraft (39%).
Which airline is most on time from PHX 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 |
|---|---|---|---|---|---|
| Delta Air Lines | 77% | 2.1% | 25 min | 9.3% | 429 |
| American Airlines | 77% | 1.6% | 17 min | 8.3% | 1,313 |
| JetBlue | 72% | 2.2% | 23 min | 10.5% | 273 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am79%206 flights
- 9am88%131 flights
- 10am72%27 flights
- 12pm72%226 flights
- 1pm70%385 flights
- 3pm65%162 flights
- 4pm78%187 flights
- 9pm74%112 flights
- 10pm83%521 flights
- 11pm84%54 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday82%4.1% cancelled
- Tuesday78%1.5% cancelled
- Wednesday77%0.4% cancelled
- Thursday71%0.0% cancelled
- Friday73%1.0% cancelled
- Saturday82%0.7% cancelled
- Sunday75%4.5% 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 aircraft39%
- Airline (crew, maintenance, cleaning, fueling)35%
- Air traffic control & airport congestion24%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather83%
- Airline (crew, maintenance, cleaning, fueling)14%
- Air traffic control & airport congestion3%
- Security0%
PHX to BOS: common questions
- How often are PHX to BOS flights on time?
- 77% 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 Phoenix to Boston cancelled?
- 1.8% of scheduled flights were cancelled (36 of 2,015).
- How long are typical delays?
- Across all flights the average arrival delay was 19 min (early arrivals count as zero). Flights that were late arrived 78 min behind schedule on average, and 8.8% of flights were an hour or more late.
- How long is taxi time at PHX?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BOS to PHX — 77% on time
More flights from Phoenix
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: PHX → BOS, nonstop flights by US airlines that report to the DOT. How we calculate this.