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Route on-time record

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

West Palm Beach (Palm Beach International Airport) to Chicago (Chicago O'Hare International Airport). 1,243 nonstop flights in Jun 2025 to May 2026, 66% arrived within 15 minutes and 1.8% were cancelled. The most reliable flight number was American 1073 at 8:15 AM.

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

PBI → ORD

West Palm Beach to Chicago: 1,243 nonstop flights a year

On time (12 months)

66%

Cancelled

1.8%

avg delay 34 min

Best time to leave

Before 9 AM

88% on time vs 50% 6 to 9 PM

Most reliable airline

United

65% chance on time

Check PBI to ORD 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 · American 1073

    8:15 AM → 10:40 AM3h 25m nonstop

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

    80%

    chance on time

    On time (history)
    84%
    Cancelled
    0.0%
    Avg arrival delay
    13 min
    • Arrived on time 84% of the time (44 flights, Jun 2025 to May 2026).
    • Never cancelled in 44 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 88% on time; 6 to 9 PM: 50%).
    • Departs outside PBI's trouble window (11 AM to 5 PM, when 84% of its 31 ground stops and delay programs started).

    Limited track record · 44 flights

    Find American 1073 fares Opens this date on Aviasales

  2. #2 · United 1630

    12:23 PM → 2:55 PM3h 32m nonstop

    Local times, typical schedule. Last flown 2026-03-28.

    76%

    chance on time

    On time (history)
    87%
    Cancelled
    0.0%
    Avg arrival delay
    25 min
    • Arrived on time 87% of the time (23 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 ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.
    • Short track record (23 flights), so its score leans on the airline's record at this hour.

    Limited track record · 23 flights

    Find United 1630 fares Opens this date on Aviasales

  3. #3 · United 561

    9:00 AM → 11:26 AM3h 26m nonstop

    Local times, typical schedule. Last flown 2026-03-28.

    76%

    chance on time

    On time (history)
    78%
    Cancelled
    0.0%
    Avg arrival delay
    56 min
    • Arrived on time 78% of the time (23 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).
    • Short track record (23 flights), so its score leans on the airline's record at this hour.

    Limited track record · 23 flights

    Find United 561 fares Opens this date on Aviasales

  4. #4 · United 1335

    12:17 PM → 2:51 PM3h 34m nonstop

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

    72%

    chance on time

    On time (history)
    82%
    Cancelled
    0.0%
    Avg arrival delay
    11 min
    • Arrived on time 82% 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 ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.
    • 81% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 11 flights

    Find United 1335 fares Opens this date on Aviasales

  5. #5 · United 1801

    12:08 PM → 2:39 PM3h 31m nonstop

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

    71%

    chance on time

    On time (history)
    73%
    Cancelled
    0.0%
    Avg arrival delay
    33 min
    • Arrived on time 73% of the time (26 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 ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.
    • Short track record (26 flights), so its score leans on the airline's record at this hour.

    Limited track record · 26 flights

    Find United 1801 fares Opens this date on Aviasales

  6. #6 · American 2275

    6:41 PM → 9:17 PM3h 36m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 630, 2164, 1831; its record covers all of them.

    62%

    chance on time

    On time (history)
    65%
    Cancelled
    2.2%
    Avg arrival delay
    47 min
    • Arrived on time 65% of the time (224 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (6 to 9 PM: 50% on time; Before 9 AM: 88%).
    • Departs outside PBI's trouble window (11 AM to 5 PM, when 84% of its 31 ground stops and delay programs started).
    • 60% of its delay minutes came from the plane arriving late from an earlier flight.

    Strong track record · 224 flights

    Find American 2275 fares Opens this date on Aviasales

  7. #7 · American 2269

    1:02 PM → 3:26 PM3h 24m nonstop

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

    60%

    chance on time

    On time (history)
    55%
    Cancelled
    0.0%
    Avg arrival delay
    25 min
    • Arrived on time 55% 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 ORD's trouble window: 44% of its 243 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 2269 fares Opens this date on Aviasales

  8. #8 · United 2333

    5:57 PM → 8:25 PM3h 28m nonstop

    Local times, typical schedule. Last flown 2026-03-28.

    59%

    chance on time

    On time (history)
    52%
    Cancelled
    8.3%
    Avg arrival delay
    18 min
    • Arrived on time 52% of the time (21 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).
    • Short track record (21 flights), so its score leans on the airline's record at this hour.

    Limited track record · 21 flights

    Find United 2333 fares Opens this date on Aviasales

  9. #9 · United 533

    4:14 PM → 6:48 PM3h 34m nonstop

    Local times, typical schedule. Last flown 2026-05-30. Same departure also flew as United 1521, 1819; its record covers all of them.

    56%

    chance on time

    On time (history)
    59%
    Cancelled
    1.0%
    Avg arrival delay
    36 min
    • Arrived on time 59% of the time (102 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 ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.

    Moderate track record · 102 flights

    Find United 533 fares Opens this date on Aviasales

  10. #10 · American 1398

    5:09 PM → 7:39 PM3h 30m nonstop

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

    56%

    chance on time

    On time (history)
    57%
    Cancelled
    3.7%
    Avg arrival delay
    36 min
    • Arrived on time 57% of the time (178 flights, Jun 2025 to May 2026).
    • Cancelled 3.7% of the time (7 of 189).
    • Departs outside PBI's trouble window (11 AM to 5 PM, when 84% of its 31 ground stops and delay programs started).
    • Lands inside ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.

    Moderate track record · 178 flights

    Find American 1398 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • United Airlines65%

    447 flights · 67% on time as flown · 1.1% cancel

  • American Airlines65%

    796 flights · 66% on time as flown · 2.2% cancel

On time by departure time

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

  • Before 9 AM88%

    218 flights · avg delay 16 min

  • 9 AM to noon84%

    102 flights · avg delay 20 min

  • Noon to 3 PM68%

    310 flights · avg delay 39 min

  • 3 to 6 PM58%

    349 flights · avg delay 33 min

  • 6 to 9 PM50%

    264 flights · avg delay 51 min

Best day: Tuesday (81%). Worst: Sunday (66%).

Smarter routing

Nearby airports that run more on time

  • FLL → MDW 70% chance on time

    Fort Lauderdale Hollywood International Airport to Chicago Midway International Airport · 1,133 flights a year · 57 mi from your airports · yours: 65%

    Rank flightsFares

  • FLL → ORD 68% chance on time

    Fort Lauderdale Hollywood International Airport to Chicago O'Hare International Airport · 3,414 flights a year · 42 mi from your airports · yours: 65%

    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
76
F
77
M
69
A
73
M
67
J
53
J
47
A
53
S
76
O
75
N
76
D
74

What delays this route

  • Late-arriving aircraft43%
  • Airline (crew, maintenance, boarding)29%
  • Air traffic control and airport volume22%
  • Severe weather5%

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

PBI to ORD questions

What time of day is best to fly PBI to ORD?
Before 9 AM: 88% of flights arrived on time, against 50% for departures 6 to 9 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 PBI to ORD?
United, with a season-adjusted 65% chance of operating and arriving on time over 447 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 PBI to ORD?
July (47% on time); the best was February (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 PBI

Live status: FAA delays and ground stops