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Route on-time record

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

Columbia (Columbia Regional Airport) to Chicago (Chicago O'Hare International Airport). 1,812 nonstop flights in Jun 2025 to May 2026, 72% arrived within 15 minutes and 3.5% were cancelled. The most reliable flight number was Envoy 3655 at 6:00 AM.

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

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COU → ORD

Columbia to Chicago: 1,812 nonstop flights a year

On time (12 months)

72%

Cancelled

3.5%

avg delay 26 min

Best time to leave

Before 9 AM

80% on time vs 54% 6 to 9 PM

Most reliable airline

Envoy

73% chance on time

Check COU 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 · Envoy 3655 · sold as American Eagle

    6:00 AM → 7:36 AM1h 36m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Envoy 3744; its record covers all of them.

    85%

    chance on time

    On time (history)
    86%
    Cancelled
    1.1%
    Avg arrival delay
    17 min
    • Arrived on time 86% of the time (358 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 80% on time; 6 to 9 PM: 54%).

    Strong track record · 358 flights

    Find 6:00 AM flight fares Opens this date on Aviasales

  2. #2 · Envoy 3540 · sold as American Eagle

    4:28 PM → 6:10 PM1h 42m nonstop

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

    79%

    chance on time

    On time (history)
    85%
    Cancelled
    6.8%
    Avg arrival delay
    10 min
    • Arrived on time 85% of the time (40 flights, Jun 2025 to May 2026).
    • Cancelled 6.8% of the time (3 of 44).
    • Lands inside ORD's trouble window: 43% of its 237 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 · 40 flights

    Find 4:28 PM flight fares Opens this date on Aviasales

  3. #3 · Envoy 4228 · sold as American Eagle

    10:16 AM → 11:47 AM1h 31m nonstop

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

    75%

    chance on time

    On time (history)
    76%
    Cancelled
    2.0%
    Avg arrival delay
    21 min
    • Arrived on time 76% of the time (147 flights, Jun 2025 to May 2026).
    • 55% of its delay minutes came from the plane arriving late from an earlier flight.

    Moderate track record · 147 flights

    Find 10:16 AM flight fares Opens this date on Aviasales

  4. #4 · Envoy 3480 · sold as American Eagle

    10:30 AM → 12:04 PM1h 34m nonstop

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

    73%

    chance on time

    On time (history)
    73%
    Cancelled
    0.0%
    Avg arrival delay
    15 min
    • Arrived on time 73% of the time (11 flights, Jun 2025 to May 2026).
    • 66% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 11 flights

    Find 10:30 AM flight fares Opens this date on Aviasales

  5. #5 · Envoy 3479 · sold as American Eagle

    6:32 PM → 8:22 PM1h 50m nonstop

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

    71%

    chance on time

    On time (history)
    82%
    Cancelled
    0.0%
    Avg arrival delay
    14 min
    • Arrived on time 82% of the time (11 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (6 to 9 PM: 54% on time; Before 9 AM: 80%).
    • 66% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 11 flights

    Find 6:32 PM flight fares Opens this date on Aviasales

  6. #6 · SkyWest 5609 · sold as United Express, Delta Connection, American Eagle or Alaska

    8:00 AM → 9:30 AM1h 30m nonstop

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

    68%

    chance on time

    On time (history)
    72%
    Cancelled
    4.6%
    Avg arrival delay
    36 min
    • Arrived on time 72% of the time (208 flights, Jun 2025 to May 2026).
    • Cancelled 4.6% of the time (10 of 218).
    • Leaves in this route's most on-time window (Before 9 AM: 80% on time; 6 to 9 PM: 54%).

    Strong track record · 208 flights

    Find 8:00 AM flight fares Opens this date on Aviasales

  7. #7 · SkyWest 4648 · sold as United Express, Delta Connection, American Eagle or Alaska

    10:53 AM → 12:35 PM1h 42m nonstop

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

    67%

    chance on time

    On time (history)
    73%
    Cancelled
    0.0%
    Avg arrival delay
    18 min
    • Arrived on time 73% of the time (11 flights, Jun 2025 to May 2026).
    • 78% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 11 flights

    Find 10:53 AM flight fares Opens this date on Aviasales

  8. #8 · SkyWest 5869 · sold as United Express, Delta Connection, American Eagle or Alaska

    3:23 PM → 4:56 PM1h 33m nonstop

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

    62%

    chance on time

    On time (history)
    66%
    Cancelled
    5.5%
    Avg arrival delay
    33 min
    • Arrived on time 66% of the time (202 flights, Jun 2025 to May 2026).
    • Cancelled 5.5% of the time (12 of 217).
    • Lands inside ORD's trouble window: 43% of its 237 ground stops and delay programs started between 2 PM and 8 PM.
    • 50% of its delay minutes came from the plane arriving late from an earlier flight.

    Strong track record · 202 flights

    Find 3:23 PM flight fares Opens this date on Aviasales

  9. #9 · SkyWest 4716 · sold as United Express, Delta Connection, American Eagle or Alaska

    11:30 AM → 1:00 PM1h 30m nonstop

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

    61%

    chance on time

    On time (history)
    65%
    Cancelled
    4.8%
    Avg arrival delay
    48 min
    • Arrived on time 65% of the time (20 flights, Jun 2025 to May 2026).

    Limited track record · 20 flights

    Find 11:30 AM 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)73%

    1,118 flights · 75% on time as flown · 2.7% cancel

  • SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)64%

    694 flights · 67% on time as flown · 4.6% cancel

On time by departure time

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

  • Before 9 AM80%

    629 flights · avg delay 24 min

  • 9 AM to noon71%

    425 flights · avg delay 27 min

  • Noon to 3 PM78%

    162 flights · avg delay 22 min

  • 3 to 6 PM68%

    342 flights · avg delay 28 min

  • 6 to 9 PM54%

    254 flights · avg delay 32 min

Best day: Saturday (79%). Worst: Sunday (70%).

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
70
F
80
M
73
A
77
M
81
J
68
J
66
A
76
S
78
O
77
N
77
D
65

What delays this route

  • Late-arriving aircraft44%
  • Airline (crew, maintenance, boarding)25%
  • Air traffic control and airport volume22%
  • 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 COU to ORD…

COU to ORD questions

What time of day is best to fly COU to ORD?
Before 9 AM: 80% of flights arrived on time, against 54% 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 COU to ORD?
Envoy, with a season-adjusted 73% chance of operating and arriving on time over 1,118 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 COU to ORD?
December (65% on time); the best was May (81%), 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 COU

Live status: FAA delays and ground stops