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ATIS Alerts Smart Flight Search

Find the flight least likely to be delayed

Beta

We 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.

ATL → PBI

Atlanta to West Palm Beach: 3,855 nonstop flights a year

On time (12 months)

73%

Cancelled

1.5%

avg delay 16 min

Best time to leave

Before 9 AM

90% on time vs 61% 6 to 9 PM

Most reliable airline

Delta

73% chance on time

Check ATL to PBI fares

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. #1 · Delta 1311

    8:10 AM → 10:02 AM1h 49m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    86%

    chance on time

    On time (history)
    88%
    Cancelled
    1.9%
    Avg arrival delay
    8 min
    • Arrived on time 88% of the time (353 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 90% on time; 6 to 9 PM: 61%).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).

    Strong track record · 353 flights

    Find Delta 1311 fares Opens this date on Aviasales

  2. #2 · Delta 1266

    12:45 PM → 2:35 PM1h 50m nonstop

    Local times, typical schedule. Last flown 2026-05-30.

    83%

    chance on time

    On time (history)
    86%
    Cancelled
    3.5%
    Avg arrival delay
    7 min
    • Arrived on time 86% of the time (167 flights, Jun 2025 to May 2026).
    • Cancelled 3.5% of the time (6 of 173).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 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 · 167 flights

    Find Delta 1266 fares Opens this date on Aviasales

  3. #3 · Delta 1190

    11:07 AM → 12:58 PM1h 49m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    78%

    chance on time

    On time (history)
    80%
    Cancelled
    1.9%
    Avg arrival delay
    11 min
    • Arrived on time 80% of the time (357 flights, Jun 2025 to May 2026).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 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.

    Strong track record · 357 flights

    Find Delta 1190 fares Opens this date on Aviasales

  4. #4 · Delta 1527

    9:40 AM → 11:31 AM1h 51m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    77%

    chance on time

    On time (history)
    79%
    Cancelled
    1.6%
    Avg arrival delay
    12 min
    • Arrived on time 79% of the time (359 flights, Jun 2025 to May 2026).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 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.

    Strong track record · 359 flights

    Find Delta 1527 fares Opens this date on Aviasales

  5. #5 · Delta 838

    1:59 PM → 3:51 PM1h 48m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    76%

    chance on time

    On time (history)
    77%
    Cancelled
    1.1%
    Avg arrival delay
    12 min
    • Arrived on time 77% of the time (360 flights, Jun 2025 to May 2026).
    • Departs inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
    • Lands inside PBI's trouble window: 84% of its 31 ground stops and delay programs started between 11 AM and 5 PM.

    Strong track record · 360 flights

    Find Delta 838 fares Opens this date on Aviasales

  6. #6 · Delta 1458

    3:38 PM → 5:25 PM1h 47m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    72%

    chance on time

    On time (history)
    73%
    Cancelled
    0.8%
    Avg arrival delay
    15 min
    • Arrived on time 73% of the time (350 flights, Jun 2025 to May 2026).
    • Departs inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.

    Strong track record · 350 flights

    Find Delta 1458 fares Opens this date on Aviasales

  7. #7 · Delta 1495

    10:46 PM → 12:32 AM1h 47m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    69%

    chance on time

    On time (history)
    70%
    Cancelled
    1.1%
    Avg arrival delay
    23 min
    • Arrived on time 70% of the time (355 flights, Jun 2025 to May 2026).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).

    Strong track record · 355 flights

    Find Delta 1495 fares Opens this date on Aviasales

  8. #8 · Delta 959

    4:56 PM → 6:47 PM1h 50m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    69%

    chance on time

    On time (history)
    70%
    Cancelled
    1.1%
    Avg arrival delay
    17 min
    • Arrived on time 70% of the time (357 flights, Jun 2025 to May 2026).
    • Departs inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.

    Strong track record · 357 flights

    Find Delta 959 fares Opens this date on Aviasales

  9. #9 · Delta 1065

    9:20 PM → 11:07 PM1h 47m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    67%

    chance on time

    On time (history)
    67%
    Cancelled
    1.7%
    Avg arrival delay
    22 min
    • Arrived on time 67% of the time (281 flights, Jun 2025 to May 2026).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).

    Strong track record · 281 flights

    Find Delta 1065 fares Opens this date on Aviasales

  10. #10 · Delta 1606

    7:59 PM → 9:45 PM1h 46m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    65%

    chance on time

    On time (history)
    65%
    Cancelled
    1.4%
    Avg arrival delay
    21 min
    • Arrived on time 65% of the time (358 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (6 to 9 PM: 61% on time; Before 9 AM: 90%).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).

    Strong track record · 358 flights

    Find Delta 1606 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Delta Air Lines73%

    3,760 flights · 74% on time as flown · 1.5% cancel

  • Frontier Airlines56%

    95 flights · 46% on time as flown · 1.3% cancel

On time by departure time

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

  • Before 9 AM90%

    512 flights · avg delay 6 min

  • 9 AM to noon77%

    723 flights · avg delay 14 min

  • Noon to 3 PM77%

    570 flights · avg delay 12 min

  • 3 to 6 PM70%

    794 flights · avg delay 18 min

  • 6 to 9 PM61%

    656 flights · avg delay 24 min

  • After 9 PM69%

    600 flights · avg delay 21 min

Best day: Tuesday (80%). Worst: Sunday (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