Route on-time record

BOS to PHX: most on-time flights and the best time to fly

Boston (Boston Logan International Airport) to Phoenix (Phoenix Sky Harbor International Airport). 2,055 nonstop flights in Jun 2025 to May 2026, 76% arrived within 15 minutes and 1.8% were cancelled. The most reliable flight number was American 2315 at 6:13 AM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

BOS → PHX

Boston to Phoenix: 2,055 nonstop flights a year

On time (12 months)

76%

Cancelled

1.8%

avg delay 18 min

Best time to leave

9 AM to noon

83% on time vs 67% 6 to 9 PM

Most reliable airline

American

78% chance on time

Check BOS to PHX fares

Lowest nonstop fare seen in the next two months: $335 (American 2315 on 2026-10-25). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Most reliable nonstop flights

Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.

#1 · American 2315
6:13 AM → 9:00 AM5h 47m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 2260; its record covers all of them.
85%
chance on time
On time (history)
88%
Cancelled
2.8%
Avg arrival delay
8 min
- Arrived on time 88% of the time (349 flights, Jun 2025 to May 2026).
- Departs outside BOS's trouble window (noon to 6 PM, when 79% of its 196 ground stops and delay programs started).
Strong track record · 349 flights
Find American 2315 fares Opens this date on Aviasales
#2 · American 377
9:41 AM → 12:23 PM5h 42m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 1653, 2575; its record covers all of them.
81%
chance on time
On time (history)
82%
Cancelled
1.4%
Avg arrival delay
22 min
- Arrived on time 82% of the time (344 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (9 AM to noon: 83% on time; 6 to 9 PM: 67%).
- Departs outside BOS's trouble window (noon to 6 PM, when 79% of its 196 ground stops and delay programs started).
Strong track record · 344 flights
Find American 377 fares Opens this date on Aviasales
#3 · American 1814
4:37 PM → 7:39 PM6h 02m nonstop
Local times, typical schedule. Last flown 2026-04-06.
78%
chance on time
On time (history)
82%
Cancelled
1.6%
Avg arrival delay
8 min
- Arrived on time 82% of the time (61 flights, Jun 2025 to May 2026).
- Departs inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
- Lands inside PHX's trouble window: 43% of its 46 ground stops and delay programs started between 2 PM and 8 PM.
Moderate track record · 61 flights
Find American 1814 fares Opens this date on Aviasales
#4 · American 1057
12:41 PM → 3:25 PM5h 44m nonstop
Local times, typical schedule. Last flown 2026-05-31.
77%
chance on time
On time (history)
78%
Cancelled
1.4%
Avg arrival delay
14 min
- Arrived on time 78% of the time (357 flights, Jun 2025 to May 2026).
- Departs inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
- Lands inside PHX's trouble window: 43% of its 46 ground stops and delay programs started between 2 PM and 8 PM.
Strong track record · 357 flights
Find American 1057 fares Opens this date on Aviasales
#5 · JetBlue 303
9:32 AM → 9:40 PM6h 00m nonstop
Local times, typical schedule. Last flown 2026-05-20.
74%
chance on time
On time (history)
76%
Cancelled
2.0%
Avg arrival delay
23 min
- Arrived on time 76% of the time (96 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (9 AM to noon: 83% on time; 6 to 9 PM: 67%).
- Departs outside BOS's trouble window (noon to 6 PM, when 79% of its 196 ground stops and delay programs started).
Moderate track record · 96 flights
Find JetBlue 303 fares Opens this date on Aviasales
#6 · JetBlue 1303
9:19 AM → 12:18 PM5h 56m nonstop
Local times, typical schedule. Last flown 2026-05-26.
72%
chance on time
On time (history)
70%
Cancelled
1.9%
Avg arrival delay
16 min
- Arrived on time 70% of the time (157 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (9 AM to noon: 83% on time; 6 to 9 PM: 67%).
- Departs outside BOS's trouble window (noon to 6 PM, when 79% of its 196 ground stops and delay programs started).
Moderate track record · 157 flights
Find JetBlue 1303 fares Opens this date on Aviasales
#7 · American 3313
5:05 PM → 7:52 PM5h 47m nonstop
Local times, typical schedule. Last flown 2026-05-31.
69%
chance on time
On time (history)
70%
Cancelled
0.0%
Avg arrival delay
18 min
- Arrived on time 70% of the time (10 flights, Jun 2025 to May 2026).
- Departs inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
- Lands inside PHX's trouble window: 43% of its 46 ground stops and delay programs started between 2 PM and 8 PM.
- 88% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 10 flights
Find American 3313 fares Opens this date on Aviasales
#8 · Delta 514
8:35 AM → 11:35 AM5h 53m nonstop
Local times, typical schedule. Last flown 2026-05-31.
66%
chance on time
On time (history)
67%
Cancelled
1.4%
Avg arrival delay
20 min
- Arrived on time 67% of the time (350 flights, Jun 2025 to May 2026).
- Departs outside BOS's trouble window (noon to 6 PM, when 79% of its 196 ground stops and delay programs started).
Strong track record · 350 flights
Find Delta 514 fares Opens this date on Aviasales
#9 · American 1850
4:24 PM → 7:12 PM5h 48m nonstop
Local times, typical schedule. Last flown 2026-05-20.
63%
chance on time
On time (history)
59%
Cancelled
0.7%
Avg arrival delay
36 min
- Arrived on time 59% of the time (138 flights, Jun 2025 to May 2026).
- Departs inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
- Lands inside PHX's trouble window: 43% of its 46 ground stops and delay programs started between 2 PM and 8 PM.
- 68% of its delay minutes came from the plane arriving late from an earlier flight.
Moderate track record · 138 flights
Find American 1850 fares Opens this date on Aviasales
#10 · Delta 2848
5:50 PM → 8:40 PM5h 50m nonstop
Local times, typical schedule. Last flown 2026-05-04. Same departure also flew as Delta 2148; its record covers all of them.
63%
chance on time
On time (history)
76%
Cancelled
0.0%
Avg arrival delay
10 min
- Arrived on time 76% of the time (37 flights, Jun 2025 to May 2026).
- Never cancelled in 37 scheduled flights.
- Departs inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
- Short track record (37 flights), so its score leans on the airline's record at this hour.
Limited track record · 37 flights
Find Delta 2848 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

American Airlines78%
1,317 flights · 80% on time as flown · 1.8% cancel
JetBlue72%
310 flights · 72% on time as flown · 1.9% cancel
Delta Air Lines67%
428 flights · 68% on time as flown · 1.9% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

Before 9 AM82%
633 flights · avg delay 12 min
9 AM to noon83%
326 flights · avg delay 19 min
Noon to 3 PM77%
363 flights · avg delay 14 min
3 to 6 PM67%
477 flights · avg delay 25 min
6 to 9 PM67%
256 flights · avg delay 20 min

Best day: Saturday (80%). Worst: Friday (73%).

On time by month

All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.

What delays this route

Late-arriving aircraft39%
Airline (crew, maintenance, boarding)37%
Air traffic control and airport volume21%
Severe weather3%

Share of delay minutes by the cause airlines report to the US DOT.

Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure

BOS to PHX questions

What time of day is best to fly BOS to PHX?: 9 AM to noon: 83% of flights arrived on time, against 67% for departures 6 to 9 PM.
Which airline is most on time from BOS to PHX?: American, with a season-adjusted 78% chance of operating and arriving on time over 1,317 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
What is the worst month for delays on BOS to PHX?: July (68% on time); the best was March (86%), averaged over Jun 2023 to May 2026.
Is this a prediction for my flight?: No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.

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