Route on-time record
BOS to PBI: most on-time flights and the best time to fly
Boston (Boston Logan International Airport) to West Palm Beach (Palm Beach International Airport). 2,198 nonstop flights in Jun 2025 to May 2026, 66% arrived within 15 minutes and 3.0% were cancelled. The most reliable flight number was Delta 1245 at 7:55 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
BOS → PBI
Boston to West Palm Beach: 2,198 nonstop flights a year
On time (12 months)
66%
Cancelled
3.0%
avg delay 26 min
Best time to leave
Before 9 AM
82% on time vs 55% 3 to 6 PM
Most reliable airline
Delta
67% chance on time
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 · Delta 1245
7:55 AM → 11:20 AM3h 25m nonstop
Local times, typical schedule. Last flown 2026-05-31.
80%
chance on time
- On time (history)
- 83%
- Cancelled
- 3.6%
- Avg arrival delay
- 17 min
- Arrived on time 83% of the time (212 flights, Jun 2025 to May 2026).
- Cancelled 3.6% of the time (8 of 223).
- Leaves in this route's most on-time window (Before 9 AM: 82% on time; 3 to 6 PM: 55%).
- Departs outside BOS's trouble window (noon to 6 PM, when 79% of its 196 ground stops and delay programs started).
Strong track record · 212 flights
Find Delta 1245 fares Opens this date on Aviasales#2 · JetBlue 21
7:30 AM → 11:50 AM3h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31.
70%
chance on time
- On time (history)
- 72%
- Cancelled
- 3.2%
- Avg arrival delay
- 22 min
- Arrived on time 72% of the time (241 flights, Jun 2025 to May 2026).
- Cancelled 3.2% of the time (8 of 251).
- Leaves in this route's most on-time window (Before 9 AM: 82% on time; 3 to 6 PM: 55%).
- Departs outside BOS's trouble window (noon to 6 PM, when 79% of its 196 ground stops and delay programs started).
Strong track record · 241 flights
Find JetBlue 21 fares Opens this date on Aviasales#3 · JetBlue 821
7:00 AM → 9:23 AM3h 13m nonstop
Local times, typical schedule. Last flown 2026-04-28.
70%
chance on time
- On time (history)
- 70%
- Cancelled
- 6.0%
- Avg arrival delay
- 16 min
- Arrived on time 70% of the time (172 flights, Jun 2025 to May 2026).
- Cancelled 6.0% of the time (11 of 183).
- Leaves in this route's most on-time window (Before 9 AM: 82% on time; 3 to 6 PM: 55%).
- Departs outside BOS's trouble window (noon to 6 PM, when 79% of its 196 ground stops and delay programs started).
Moderate track record · 172 flights
Find JetBlue 821 fares Opens this date on Aviasales#4 · JetBlue 1221
1:35 PM → 4:52 PM3h 17m nonstop
Local times, typical schedule. Last flown 2026-05-20.
66%
chance on time
- On time (history)
- 77%
- Cancelled
- 5.4%
- Avg arrival delay
- 12 min
- Arrived on time 77% of the time (35 flights, Jun 2025 to May 2026).
- Cancelled 5.4% of the time (2 of 37).
- Departs inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
- Lands inside PBI's trouble window: 84% of its 31 ground stops and delay programs started between 11 AM and 5 PM.
Limited track record · 35 flights
Find JetBlue 1221 fares Opens this date on Aviasales#5 · JetBlue 1321
9:30 AM → 12:45 PM3h 15m nonstop
Local times, typical schedule. Last flown 2026-05-20.
66%
chance on time
- On time (history)
- 72%
- Cancelled
- 1.6%
- Avg arrival delay
- 15 min
- Arrived on time 72% of the time (61 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).
- Lands inside PBI's trouble window: 84% of its 31 ground stops and delay programs started between 11 AM and 5 PM.
Moderate track record · 61 flights
Find JetBlue 1321 fares Opens this date on Aviasales#6 · JetBlue 2321
6:30 PM → 9:49 PM3h 19m nonstop
Local times, typical schedule. Last flown 2026-05-31.
64%
chance on time
- On time (history)
- 67%
- Cancelled
- 2.7%
- Avg arrival delay
- 22 min
- Arrived on time 67% of the time (325 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 · 325 flights
Find JetBlue 2321 fares Opens this date on Aviasales#7 · JetBlue 921
3:43 PM → 7:08 PM3h 27m nonstop
Local times, typical schedule. Last flown 2026-03-11.
60%
chance on time
- On time (history)
- 65%
- Cancelled
- 7.1%
- Avg arrival delay
- 37 min
- Arrived on time 65% of the time (26 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 55% on time; Before 9 AM: 82%).
- Departs inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
- Short track record (26 flights), so its score leans on the airline's record at this hour.
Limited track record · 26 flights
Find JetBlue 921 fares Opens this date on Aviasales#8 · JetBlue 321
10:40 AM → 10:59 PM3h 17m nonstop
Local times, typical schedule. Last flown 2026-05-20.
59%
chance on time
- On time (history)
- 60%
- Cancelled
- 3.9%
- Avg arrival delay
- 31 min
- Arrived on time 60% of the time (147 flights, Jun 2025 to May 2026).
- Cancelled 3.9% of the time (6 of 153).
- Departs outside BOS's trouble window (noon to 6 PM, when 79% of its 196 ground stops and delay programs started).
- 59% of its delay minutes came from the plane arriving late from an earlier flight.
Moderate track record · 147 flights
Find JetBlue 321 fares Opens this date on Aviasales#9 · JetBlue 221
1:55 PM → 5:21 PM3h 26m nonstop
Local times, typical schedule. Last flown 2026-04-28.
59%
chance on time
- On time (history)
- 58%
- Cancelled
- 1.9%
- Avg arrival delay
- 28 min
- Arrived on time 58% of the time (156 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.
Moderate track record · 156 flights
Find JetBlue 221 fares Opens this date on Aviasales#10 · Delta 2160
4:08 PM → 7:37 PM3h 23m nonstop
Local times, typical schedule. Last flown 2026-05-31.
57%
chance on time
- On time (history)
- 60%
- Cancelled
- 2.1%
- Avg arrival delay
- 30 min
- Arrived on time 60% of the time (331 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 55% on time; Before 9 AM: 82%).
- Departs inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
Strong track record · 331 flights
Find Delta 2160 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Delta Air Lines67%
613 flights · 70% on time as flown · 2.6% cancel
- JetBlue63%
1,576 flights · 64% on time as flown · 3.3% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM82%
613 flights · avg delay 13 min
- 9 AM to noon62%
272 flights · avg delay 24 min
- Noon to 3 PM66%
373 flights · avg delay 24 min
- 3 to 6 PM55%
572 flights · avg delay 33 min
- 6 to 9 PM58%
367 flights · avg delay 40 min
Best day: Tuesday (74%). Worst: Sunday (63%).
Smarter routing
Nearby airports that run more on time
PVD → PBI 73% chance on time
Rhode Island T. F. Green International Airport to Palm Beach International Airport · 421 flights a year · 49 mi from your airports · yours: 64%
PVD → FLL 67% chance on time
Rhode Island T. F. Green International Airport to Fort Lauderdale Hollywood International Airport · 554 flights a year · 91 mi from your airports · yours: 64%
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 aircraft40%
- Air traffic control and airport volume28%
- Airline (crew, maintenance, boarding)28%
- Severe weather4%
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 PBI questions
- What time of day is best to fly BOS to PBI?
- Before 9 AM: 82% of flights arrived on time, against 55% for departures 3 to 6 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from BOS to PBI?
- Delta, with a season-adjusted 67% chance of operating and arriving on time over 613 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 PBI?
- December (56% on time); the best was November (77%), 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.
More routes from BOS
- PBI to BOS (return)
- BOS to DCA 74%
- BOS to ORD 72%
- BOS to LGA 77%
- BOS to JFK 75%
- BOS to PHL 76%
- BOS to ATL 78%
- BOS to LAX 76%
- BOS to MCO 70%
- BOS to SFO 75%
- BOS to CLT 82%
- BOS to DEN 76%
- BOS to EWR 74%
Live status: FAA delays and ground stops