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Route on-time record

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

Chicago (Chicago O'Hare International Airport) to Savoy (University of Illinois Willard Airport). 1,024 nonstop flights in Jun 2025 to May 2026, 70% arrived within 15 minutes and 3.3% were cancelled. The most reliable flight number was Envoy 3529 at 1:04 PM.

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

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ORD → CMI

Chicago to Savoy: 1,024 nonstop flights a year

On time (12 months)

70%

Cancelled

3.3%

avg delay 19 min

Best time to leave

Noon to 3 PM

80% on time vs 64% 3 to 6 PM

Most reliable airline

Envoy

68% chance on time

Check ORD to CMI fares

Lowest nonstop fare seen in the next two months: $473 (American 3492 on 2026-10-29). 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 · Envoy 3529 · sold as American Eagle

    1:04 PM → 2:08 PM1h 04m nonstop

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

    81%

    chance on time

    On time (history)
    93%
    Cancelled
    0.0%
    Avg arrival delay
    3 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 (Noon to 3 PM: 80% on time; 3 to 6 PM: 64%).
    • Departs outside ORD's trouble window (2 PM to 8 PM, when 43% of its 237 ground stops and delay programs started).

    Limited track record · 44 flights

    Find 1:04 PM flight fares Opens this date on Aviasales

  2. #2 · Envoy 3476 · sold as American Eagle

    10:00 AM → 11:07 AM1h 07m nonstop

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

    74%

    chance on time

    On time (history)
    91%
    Cancelled
    0.0%
    Avg arrival delay
    10 min
    • Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
    • Departs outside ORD's trouble window (2 PM to 8 PM, when 43% of its 237 ground stops and delay programs started).
    • 90% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 11 flights

    Find 10:00 AM flight fares Opens this date on Aviasales

  3. #3 · Envoy 3959 · sold as American Eagle

    5:21 PM → 6:28 PM1h 07m nonstop

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

    69%

    chance on time

    On time (history)
    73%
    Cancelled
    3.7%
    Avg arrival delay
    18 min
    • Arrived on time 73% of the time (128 flights, Jun 2025 to May 2026).
    • Cancelled 3.7% of the time (5 of 134).
    • Leaves in this route's least on-time window (3 to 6 PM: 64% on time; Noon to 3 PM: 80%).
    • Departs inside ORD's trouble window: 43% of its 237 ground stops and delay programs started between 2 PM and 8 PM.

    Moderate track record · 128 flights

    Find 5:21 PM flight fares Opens this date on Aviasales

  4. #4 · Envoy 3694 · sold as American Eagle

    8:27 PM → 9:35 PM1h 08m nonstop

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

    62%

    chance on time

    On time (history)
    63%
    Cancelled
    3.0%
    Avg arrival delay
    27 min
    • Arrived on time 63% of the time (292 flights, Jun 2025 to May 2026).
    • Departs outside ORD's trouble window (2 PM to 8 PM, when 43% of its 237 ground stops and delay programs started).
    • 61% of its delay minutes came from the plane arriving late from an earlier flight.

    Strong track record · 292 flights

    Find 8:27 PM flight fares Opens this date on Aviasales

  5. #5 · Envoy 3477 · sold as American Eagle

    5:01 PM → 6:09 PM1h 08m nonstop

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

    61%

    chance on time

    On time (history)
    64%
    Cancelled
    0.0%
    Avg arrival delay
    25 min
    • Arrived on time 64% of the time (11 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (3 to 6 PM: 64% on time; Noon to 3 PM: 80%).
    • Departs inside ORD's trouble window: 43% of its 237 ground stops and delay programs started between 2 PM and 8 PM.
    • 59% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 11 flights

    Find 5:01 PM flight fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Envoy Air (sold as American Eagle)68%

    1,024 flights · 70% on time as flown · 3.3% cancel

On time by departure time

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

  • Before 9 AM73%

    47 flights · avg delay 13 min

  • 9 AM to noon75%

    222 flights · avg delay 14 min

  • Noon to 3 PM80%

    212 flights · avg delay 14 min

  • 3 to 6 PM64%

    164 flights · avg delay 22 min

  • 6 to 9 PM65%

    379 flights · avg delay 25 min

Best day: Saturday (79%). Worst: Thursday (66%).

Smarter routing

Nearby airports that run more on time

  • ORD → BMI 75% chance on time

    Chicago O'Hare International Airport to Central Illinois Regional Airport at Bloomington-Normal · 880 flights a year · 45 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
59
F
70
M
75
A
79
M
77
J
70
J
67
A
74
S
78
O
80
N
78
D
66

What delays this route

  • Late-arriving aircraft57%
  • Air traffic control and airport volume20%
  • Airline (crew, maintenance, boarding)14%
  • Severe weather9%

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 CMI…

ORD to CMI questions

What time of day is best to fly ORD to CMI?
Noon to 3 PM: 80% of flights arrived on time, against 64% for departures 3 to 6 PM.
Which airline is most on time from ORD to CMI?
Envoy, with a season-adjusted 68% chance of operating and arriving on time over 1,024 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 CMI?
January (59% on time); the best was October (80%), 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

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Live status: FAA delays and ground stops