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Route on-time record

ORD to PBI: most on-time flights and the best time to fly

Chicago (Chicago O'Hare International Airport) to West Palm Beach (Palm Beach International Airport). 1,244 nonstop flights in Jun 2025 to May 2026, 68% arrived within 15 minutes and 1.5% were cancelled. The most reliable flight number was United 1400 at 3:35 PM.

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

ORD → PBI

Chicago to West Palm Beach: 1,244 nonstop flights a year

On time (12 months)

68%

Cancelled

1.5%

avg delay 26 min

Best time to leave

Before 9 AM

72% on time vs 62% noon to 3 PM

Most reliable airline

United

72% chance on time

Check ORD 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 · United 1400

    3:35 PM → 7:50 PM3h 15m nonstop

    Local times, typical schedule. Last flown 2026-04-29.

    75%

    chance on time

    On time (history)
    75%
    Cancelled
    0.0%
    Avg arrival delay
    24 min
    • Arrived on time 75% of the time (56 flights, Jun 2025 to May 2026).
    • Never cancelled in 56 scheduled flights.
    • Departs inside ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.
    • 52% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 56 flights

    Find United 1400 fares Opens this date on Aviasales

  2. #2 · United 2609

    7:10 AM → 11:11 AM3h 01m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as United 1616; its record covers all of them.

    75%

    chance on time

    On time (history)
    74%
    Cancelled
    0.0%
    Avg arrival delay
    16 min
    • Arrived on time 74% of the time (35 flights, Jun 2025 to May 2026).
    • Never cancelled in 35 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 72% on time; Noon to 3 PM: 62%).
    • Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).

    Limited track record · 35 flights

    Find United 2609 fares Opens this date on Aviasales

  3. #3 · United 2342

    10:53 AM → 3:08 PM3h 16m nonstop

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

    71%

    chance on time

    On time (history)
    70%
    Cancelled
    1.8%
    Avg arrival delay
    19 min
    • Arrived on time 70% of the time (107 flights, Jun 2025 to May 2026).
    • Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 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 · 107 flights

    Find United 2342 fares Opens this date on Aviasales

  4. #4 · American 2475

    11:58 AM → 4:00 PM3h 02m nonstop

    Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as American 1398; its record covers all of them.

    66%

    chance on time

    On time (history)
    67%
    Cancelled
    1.2%
    Avg arrival delay
    23 min
    • Arrived on time 67% of the time (249 flights, Jun 2025 to May 2026).
    • Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 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 · 249 flights

    Find American 2475 fares Opens this date on Aviasales

  5. #5 · American 1831

    1:53 PM → 5:52 PM2h 59m nonstop

    Local times, typical schedule. Last flown 2026-04-06.

    65%

    chance on time

    On time (history)
    67%
    Cancelled
    2.0%
    Avg arrival delay
    33 min
    • Arrived on time 67% of the time (245 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (Noon to 3 PM: 62% on time; Before 9 AM: 72%).
    • Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
    • 58% of its delay minutes came from the plane arriving late from an earlier flight.

    Strong track record · 245 flights

    Find American 1831 fares Opens this date on Aviasales

  6. #6 · American 2269

    8:10 AM → 12:11 PM3h 01m nonstop

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

    65%

    chance on time

    On time (history)
    64%
    Cancelled
    0.0%
    Avg arrival delay
    14 min
    • Arrived on time 64% of the time (11 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 72% on time; Noon to 3 PM: 62%).
    • Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 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.

    Limited track record · 11 flights

    Find American 2269 fares Opens this date on Aviasales

  7. #7 · American 1238

    9:51 AM → 1:53 PM3h 02m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    63%

    chance on time

    On time (history)
    62%
    Cancelled
    7.1%
    Avg arrival delay
    88 min
    • Arrived on time 62% of the time (13 flights, Jun 2025 to May 2026).
    • Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 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.
    • 88% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 13 flights

    Find American 1238 fares Opens this date on Aviasales

  8. #8 · American 2275

    1:45 PM → 5:50 PM3h 05m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 630, 2164; its record covers all of them.

    57%

    chance on time

    On time (history)
    59%
    Cancelled
    0.0%
    Avg arrival delay
    35 min
    • Arrived on time 59% of the time (41 flights, Jun 2025 to May 2026).
    • Never cancelled in 41 scheduled flights.
    • Leaves in this route's least on-time window (Noon to 3 PM: 62% on time; Before 9 AM: 72%).
    • Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).

    Limited track record · 41 flights

    Find American 2275 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • United Airlines72%

    448 flights · 73% on time as flown · 0.7% cancel

  • American Airlines64%

    796 flights · 65% on time as flown · 2.0% cancel

On time by departure time

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

  • Before 9 AM72%

    263 flights · avg delay 25 min

  • 9 AM to noon70%

    370 flights · avg delay 24 min

  • Noon to 3 PM62%

    357 flights · avg delay 28 min

  • 3 to 6 PM72%

    170 flights · avg delay 26 min

  • 6 to 9 PM63%

    83 flights · avg delay 34 min

Best day: Tuesday (85%). Worst: Sunday (67%).

Smarter routing

Nearby airports that run more on time

  • MDW → FLL 74% chance on time

    Chicago Midway International Airport to Fort Lauderdale Hollywood International Airport · 1,133 flights a year · 57 mi from your airports · yours: 67%

    Rank flightsFares

  • ORD → FLL 72% chance on time

    Chicago O'Hare International Airport to Fort Lauderdale Hollywood International Airport · 3,416 flights a year · 42 mi from your airports · yours: 67%

    Rank flightsFares

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.

J
71
F
82
M
69
A
78
M
78
J
59
J
60
A
71
S
67
O
84
N
82
D
69

What delays this route

  • Late-arriving aircraft50%
  • Airline (crew, maintenance, boarding)24%
  • Air traffic control and airport volume23%
  • Severe weather2%

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

Finding the most reliable connections from ORD to PBI…

ORD to PBI questions

What time of day is best to fly ORD to PBI?
Before 9 AM: 72% of flights arrived on time, against 62% for departures noon to 3 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 ORD to PBI?
United, with a season-adjusted 72% chance of operating and arriving on time over 448 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 ORD to PBI?
June (59% on time); the best was October (84%), 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 ORD

Live status: FAA delays and ground stops