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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.

PBI → IAH

West Palm Beach to Houston: 431 nonstop flights a year

On time (12 months)

85%

Cancelled

1.2%

avg delay 13 min

Best time to leave

Before 9 AM

96% on time vs 75% 3 to 6 PM

Most reliable airline

United

84% chance on time

Check PBI to IAH 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 · United 366

    6:10 AM → 8:10 AM3h 00m nonstop

    Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as United 2035; its record covers all of them.

    93%

    chance on time

    On time (history)
    96%
    Cancelled
    2.6%
    Avg arrival delay
    3 min
    • Arrived on time 96% of the time (74 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 96% on time; 3 to 6 PM: 75%).
    • 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 · 74 flights

    Find United 366 fares Opens this date on Aviasales

  2. #2 · United 1752

    5:03 PM → 7:07 PM3h 04m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as United 2275; its record covers all of them.

    73%

    chance on time

    On time (history)
    72%
    Cancelled
    0.6%
    Avg arrival delay
    27 min
    • Arrived on time 72% of the time (171 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (3 to 6 PM: 75% on time; Before 9 AM: 96%).
    • 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 · 171 flights

    Find United 1752 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • United Airlines84%

    430 flights · 85% on time as flown · 1.2% cancel

On time by departure time

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

  • Before 9 AM96%

    171 flights · avg delay 2 min

  • 9 AM to noon91%

    47 flights · avg delay 5 min

  • 3 to 6 PM75%

    213 flights · avg delay 22 min

Best day: Tuesday (86%). 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