ATIS Alerts Smart Flight Search
Find the flight least likely to be delayed
BetaWe rank real flight numbers by how often they flew and arrived on time over the last 12 months, adjusted for your travel month and departure time, then check nearby airports and calmer connections. US airlines and airports.
PBI → PHL
West Palm Beach to Philadelphia: 1,537 nonstop flights a year
On time (12 months)
76%
Cancelled
2.5%
avg delay 30 min
Best time to leave
Before 9 AM
96% on time vs 62% 3 to 6 PM
Most reliable airline
American
78% 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 · American 2642
7:00 AM → 9:44 AM2h 44m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 2944; its record covers all of them.
92%
chance on time
- On time (history)
- 96%
- Cancelled
- 3.4%
- Avg arrival delay
- 13 min
- Arrived on time 96% of the time (396 flights, Jun 2025 to May 2026).
- Cancelled 3.4% of the time (14 of 410).
- Leaves in this route's most on-time window (Before 9 AM: 96% on time; 3 to 6 PM: 62%).
- Departs outside PBI's trouble window (11 AM to 5 PM, when 84% of its 31 ground stops and delay programs started).
Strong track record · 396 flights
Find American 2642 fares Opens this date on Aviasales#2 · American 985
10:40 AM → 1:21 PM2h 41m nonstop
Local times, typical schedule. Last flown 2026-05-19.
84%
chance on time
- On time (history)
- 88%
- Cancelled
- 2.9%
- Avg arrival delay
- 5 min
- Arrived on time 88% of the time (66 flights, Jun 2025 to May 2026).
- Departs outside PBI's trouble window (11 AM to 5 PM, when 84% of its 31 ground stops and delay programs started).
Moderate track record · 66 flights
Find American 985 fares Opens this date on Aviasales#3 · American 3051
10:00 AM → 12:42 PM2h 42m nonstop
Local times, typical schedule. Last flown 2026-04-06.
80%
chance on time
- On time (history)
- 78%
- Cancelled
- 0.0%
- Avg arrival delay
- 10 min
- Arrived on time 78% of the time (46 flights, Jun 2025 to May 2026).
- Never cancelled in 46 scheduled flights.
- Departs outside PBI's trouble window (11 AM to 5 PM, when 84% of its 31 ground stops and delay programs started).
- Short track record (46 flights), so its score leans on the airline's record at this hour.
Limited track record · 46 flights
Find American 3051 fares Opens this date on Aviasales#4 · American 2283
1:24 PM → 4:12 PM2h 48m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as American 2137; its record covers all of them.
79%
chance on time
- On time (history)
- 81%
- Cancelled
- 0.0%
- Avg arrival delay
- 43 min
- Arrived on time 81% of the time (42 flights, Jun 2025 to May 2026).
- Never cancelled in 42 scheduled flights.
- Departs inside PBI's trouble window: 84% of its 31 ground stops and delay programs started between 11 AM and 5 PM.
- Lands inside PHL's trouble window: 72% of its 95 ground stops and delay programs started between 2 PM and 8 PM.
Limited track record · 42 flights
Find American 2283 fares Opens this date on Aviasales#5 · American 2271
12:29 PM → 3:15 PM2h 46m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
- Departs inside PBI's trouble window: 84% of its 31 ground stops and delay programs started between 11 AM and 5 PM.
- Lands inside PHL's trouble window: 72% of its 95 ground stops and delay programs started between 2 PM and 8 PM.
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find American 2271 fares Opens this date on Aviasales#6 · American 2496
3:11 PM → 6:00 PM2h 49m nonstop
Local times, typical schedule. Last flown 2026-05-20.
72%
chance on time
- On time (history)
- 75%
- Cancelled
- 0.0%
- Avg arrival delay
- 25 min
- Arrived on time 75% of the time (44 flights, Jun 2025 to May 2026).
- Never cancelled in 44 scheduled flights.
- Leaves in this route's least on-time window (3 to 6 PM: 62% on time; Before 9 AM: 96%).
- Departs inside PBI's trouble window: 84% of its 31 ground stops and delay programs started between 11 AM and 5 PM.
Limited track record · 44 flights
Find American 2496 fares Opens this date on Aviasales#7 · American 935
6:17 PM → 9:01 PM2h 44m nonstop
Local times, typical schedule. Last flown 2026-04-06. Same departure also flew as American 1790; its record covers all of them.
72%
chance on time
- On time (history)
- 75%
- Cancelled
- 5.6%
- Avg arrival delay
- 54 min
- Arrived on time 75% of the time (51 flights, Jun 2025 to May 2026).
- Cancelled 5.6% of the time (3 of 54).
- Departs outside PBI's trouble window (11 AM to 5 PM, when 84% of its 31 ground stops and delay programs started).
- Short track record (51 flights), so its score leans on the airline's record at this hour.
Limited track record · 51 flights
Find American 935 fares Opens this date on Aviasales#8 · American 2280
4:07 PM → 6:58 PM2h 51m nonstop
Local times, typical schedule. Last flown 2026-05-31.
71%
chance on time
- On time (history)
- 82%
- Cancelled
- 0.0%
- Avg arrival delay
- 7 min
- Arrived on time 82% of the time (11 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 62% on time; Before 9 AM: 96%).
- Departs inside PBI's trouble window: 84% of its 31 ground stops and delay programs started between 11 AM and 5 PM.
- Lands inside PHL's trouble window: 72% of its 95 ground stops and delay programs started between 2 PM and 8 PM.
Limited track record · 11 flights
Find American 2280 fares Opens this date on Aviasales#9 · American 3060
12:09 PM → 2:54 PM2h 45m nonstop
Local times, typical schedule. Last flown 2026-04-06.
69%
chance on time
- On time (history)
- 63%
- Cancelled
- 0.0%
- Avg arrival delay
- 23 min
- Arrived on time 63% of the time (30 flights, Jun 2025 to May 2026).
- Never cancelled in 30 scheduled flights.
- Departs inside PBI's trouble window: 84% of its 31 ground stops and delay programs started between 11 AM and 5 PM.
- Lands inside PHL's trouble window: 72% of its 95 ground stops and delay programs started between 2 PM and 8 PM.
Limited track record · 30 flights
Find American 3060 fares Opens this date on Aviasales#10 · Frontier 2582
8:10 PM → 10:55 PM2h 46m nonstop
Local times, typical schedule. Last flown 2026-05-30.
61%
chance on time
- On time (history)
- 63%
- Cancelled
- 2.1%
- Avg arrival delay
- 40 min
- Arrived on time 63% of the time (93 flights, Jun 2025 to May 2026).
- Departs outside PBI's trouble window (11 AM to 5 PM, when 84% of its 31 ground stops and delay programs started).
- 61% of its delay minutes came from the plane arriving late from an earlier flight.
Moderate track record · 93 flights
Find Frontier 2582 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- American Airlines78%
1,271 flights · 80% on time as flown · 2.4% cancel
- Frontier Airlines62%
266 flights · 60% on time as flown · 2.6% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM96%
357 flights · avg delay 15 min
- 9 AM to noon80%
331 flights · avg delay 18 min
- Noon to 3 PM71%
402 flights · avg delay 30 min
- 3 to 6 PM62%
335 flights · avg delay 51 min
- 6 to 9 PM65%
90 flights · avg delay 58 min
Best day: Tuesday (80%). Worst: Friday (70%).
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