BOS to PHX flight delays & on-time performance
Nonstop flights from Boston Logan International Airport to Phoenix Sky Harbor International Airport · 2,300 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BOS or PHX right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Boston (BOS) to Phoenix (PHX) arrived on time 77% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.6% were cancelled, and 7% arrived an hour or more late.
- American Airlines was the most punctual airline here (80% on time); Delta Air Lines was the least (71%).
- Departures scheduled around 6am did best (87% on time); around 5pm did worst (65%).
- Monday was the most reliable day to fly (82% on time) and Friday the least (72%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (41%).
Which airline is most on time from BOS to PHX?
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 |
|---|---|---|---|---|---|
| American Airlines | 80% | 1.6% | 17 min | 5.8% | 1,315 |
| JetBlue | 74% | 1.8% | 20 min | 11.2% | 273 |
| Delta Air Lines | 71% | 1.6% | 18 min | 8.2% | 429 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am87%328 flights
- 7am90%30 flights
- 8am75%274 flights
- 9am83%301 flights
- 10am85%26 flights
- 12pm78%242 flights
- 1pm79%120 flights
- 4pm76%184 flights
- 5pm65%353 flights
- 6pm73%130 flights
- 7pm72%29 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday82%4.6% cancelled
- Tuesday75%3.4% cancelled
- Wednesday77%0.7% cancelled
- Thursday78%0.0% cancelled
- Friday72%0.0% cancelled
- Saturday78%1.1% cancelled
- Sunday80%1.6% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)41%
- Late-arriving aircraft36%
- Air traffic control & airport congestion20%
- Extreme weather3%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather91%
- Airline (crew, maintenance, cleaning, fueling)6%
- Air traffic control & airport congestion3%
- Security0%
BOS to PHX: common questions
- How often are BOS to PHX 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 Boston to Phoenix cancelled?
- 1.6% of scheduled flights were cancelled (33 of 2,017).
- How long are typical delays?
- Across all flights the average arrival delay was 17 min (early arrivals count as zero). Flights that were late arrived 71 min behind schedule on average, and 7.0% of flights were an hour or more late.
- How long is taxi time at BOS?
- Flights on this route spent 22 min taxiing from the gate to takeoff on average.
Related routes
Return trip: PHX to BOS — 77% on time
More flights from Boston
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: BOS → PHX, nonstop flights by US airlines that report to the DOT. How we calculate this.