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Route on-time record

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

Fort Lauderdale (Fort Lauderdale Hollywood International Airport) to Chicago (Chicago O'Hare International Airport). 3,414 nonstop flights in Jun 2025 to May 2026, 69% arrived within 15 minutes and 1.7% were cancelled. The most reliable flight number was American 3101 at 6:53 AM.

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

FLL → ORD

Fort Lauderdale to Chicago: 3,414 nonstop flights a year

On time (12 months)

69%

Cancelled

1.7%

avg delay 28 min

Best time to leave

Before 9 AM

83% on time vs 51% 3 to 6 PM

Most reliable airline

United

74% chance on time

Check FLL 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 3101

    6:53 AM → 9:30 AM3h 37m nonstop

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

    87%

    chance on time

    On time (history)
    93%
    Cancelled
    0.0%
    Avg arrival delay
    22 min
    • Arrived on time 93% 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: 83% on time; 3 to 6 PM: 51%).
    • Departs outside FLL's trouble window (1 PM to 7 PM, when 70% of its 20 ground stops and delay programs started).

    Limited track record · 44 flights

    Find American 3101 fares Opens this date on Aviasales

  2. #2 · United 2298

    9:00 AM → 11:33 AM3h 33m nonstop

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

    87%

    chance on time

    On time (history)
    87%
    Cancelled
    1.5%
    Avg arrival delay
    6 min
    • Arrived on time 87% of the time (132 flights, Jun 2025 to May 2026).
    • Departs outside FLL's trouble window (1 PM to 7 PM, when 70% of its 20 ground stops and delay programs started).

    Moderate track record · 132 flights

    Find United 2298 fares Opens this date on Aviasales

  3. #3 · United 1755

    12:31 PM → 3:05 PM3h 34m nonstop

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

    85%

    chance on time

    On time (history)
    87%
    Cancelled
    0.0%
    Avg arrival delay
    10 min
    • Arrived on time 87% of the time (265 flights, Jun 2025 to May 2026).
    • Never cancelled in 266 scheduled flights.
    • Departs outside FLL's trouble window (1 PM to 7 PM, when 70% of its 20 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.

    Strong track record · 265 flights

    Find United 1755 fares Opens this date on Aviasales

  4. #4 · United 752

    7:00 AM → 9:33 AM3h 33m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as United 2860; its record covers all of them.

    84%

    chance on time

    On time (history)
    82%
    Cancelled
    2.2%
    Avg arrival delay
    8 min
    • Arrived on time 82% of the time (45 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 83% on time; 3 to 6 PM: 51%).
    • Departs outside FLL's trouble window (1 PM to 7 PM, when 70% of its 20 ground stops and delay programs started).
    • Short track record (45 flights), so its score leans on the airline's record at this hour.

    Limited track record · 45 flights

    Find United 752 fares Opens this date on Aviasales

  5. #5 · United 534

    12:23 PM → 2:55 PM3h 32m nonstop

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

    83%

    chance on time

    On time (history)
    77%
    Cancelled
    4.2%
    Avg arrival delay
    17 min
    • Arrived on time 77% of the time (22 flights, Jun 2025 to May 2026).
    • Departs outside FLL's trouble window (1 PM to 7 PM, when 70% of its 20 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.
    • Short track record (22 flights), so its score leans on the airline's record at this hour.

    Limited track record · 22 flights

    Find United 534 fares Opens this date on Aviasales

  6. #6 · United 2703

    12:56 PM → 3:25 PM3h 29m nonstop

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

    81%

    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).
    • Departs outside FLL's trouble window (1 PM to 7 PM, when 70% of its 20 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.
    • Short track record (11 flights), so its score leans on the airline's record at this hour.

    Limited track record · 11 flights

    Find United 2703 fares Opens this date on Aviasales

  7. #7 · American 811

    12:15 PM → 2:48 PM3h 33m nonstop

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

    77%

    chance on time

    On time (history)
    78%
    Cancelled
    0.0%
    Avg arrival delay
    7 min
    • Arrived on time 78% of the time (9 flights, Jun 2025 to May 2026).
    • Departs outside FLL's trouble window (1 PM to 7 PM, when 70% of its 20 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.
    • Short track record (9 flights), so its score leans on the airline's record at this hour.

    Limited track record · 9 flights

    Find American 811 fares Opens this date on Aviasales

  8. #8 · United 1851

    2:29 PM → 5:03 PM3h 34m nonstop

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

    76%

    chance on time

    On time (history)
    74%
    Cancelled
    0.0%
    Avg arrival delay
    22 min
    • Arrived on time 74% of the time (82 flights, Jun 2025 to May 2026).
    • Never cancelled in 82 scheduled flights.
    • Departs inside FLL's trouble window: 70% of its 20 ground stops and delay programs started between 1 PM and 7 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 · 82 flights

    Find United 1851 fares Opens this date on Aviasales

  9. #9 · American 2107

    11:45 AM → 2:15 PM3h 30m nonstop

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

    73%

    chance on time

    On time (history)
    76%
    Cancelled
    0.0%
    Avg arrival delay
    10 min
    • Arrived on time 76% of the time (42 flights, Jun 2025 to May 2026).
    • Never cancelled in 44 scheduled flights.
    • Departs outside FLL's trouble window (1 PM to 7 PM, when 70% of its 20 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.

    Limited track record · 42 flights

    Find American 2107 fares Opens this date on Aviasales

  10. #10 · American 2695

    7:19 AM → 9:50 AM3h 31m nonstop

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

    72%

    chance on time

    On time (history)
    65%
    Cancelled
    5.5%
    Avg arrival delay
    45 min
    • Arrived on time 65% of the time (86 flights, Jun 2025 to May 2026).
    • Cancelled 5.5% of the time (5 of 91).
    • Leaves in this route's most on-time window (Before 9 AM: 83% on time; 3 to 6 PM: 51%).
    • Departs outside FLL's trouble window (1 PM to 7 PM, when 70% of its 20 ground stops and delay programs started).

    Moderate track record · 86 flights

    Find American 2695 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • United Airlines74%

    1,448 flights · 75% on time as flown · 0.8% cancel

  • American Airlines70%

    827 flights · 70% on time as flown · 1.6% cancel

  • Southwest Airlines62%

    33 flights · 39% on time as flown · 2.0% cancel

  • Spirit Airlines61%

    985 flights · 62% on time as flown · 2.9% cancel

  • Frontier Airlines59%

    121 flights · 53% on time as flown · 2.8% cancel

On time by departure time

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

  • Before 9 AM83%

    788 flights · avg delay 13 min

  • 9 AM to noon82%

    320 flights · avg delay 12 min

  • Noon to 3 PM74%

    956 flights · avg delay 27 min

  • 3 to 6 PM51%

    746 flights · avg delay 38 min

  • 6 to 9 PM58%

    350 flights · avg delay 49 min

  • After 9 PM56%

    254 flights · avg delay 39 min

Best day: Tuesday (76%). Worst: Sunday (65%).

Smarter routing

Nearby airports that run more on time

  • MIA → MDW 72% chance on time

    Miami International Airport to Chicago Midway International Airport · 520 flights a year · 36 mi from your airports · yours: 68%

    Rank flightsFares

  • FLL → MDW 70% chance on time

    Fort Lauderdale Hollywood International Airport to Chicago Midway International Airport · 1,133 flights a year · 15 mi from your airports · yours: 68%

    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
76
M
60
A
74
M
71
J
63
J
57
A
64
S
76
O
79
N
78
D
74

What delays this route

  • Late-arriving aircraft35%
  • Air traffic control and airport volume34%
  • Airline (crew, maintenance, boarding)25%
  • Severe weather6%

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

FLL to ORD questions

What time of day is best to fly FLL to ORD?
Before 9 AM: 83% of flights arrived on time, against 51% for departures 3 to 6 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 FLL to ORD?
United, with a season-adjusted 74% chance of operating and arriving on time over 1,448 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 FLL to ORD?
July (57% on time); the best was October (79%), 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 FLL

Live status: FAA delays and ground stops