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Route on-time record

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

Chicago (Chicago O'Hare International Airport) to Columbus (John Glenn Columbus International Airport). 4,794 nonstop flights in Jun 2025 to May 2026, 72% arrived within 15 minutes and 2.3% were cancelled. The most reliable flight number was United 451 at 7:12 AM.

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

ORD → CMH

Chicago to Columbus: 4,794 nonstop flights a year

On time (12 months)

72%

Cancelled

2.3%

avg delay 22 min

Best time to leave

Before 9 AM

85% on time vs 59% after 9 PM

Most reliable airline

Republic

74% chance on time

Check ORD to CMH fares

Lowest nonstop fare seen in the next two months: $118 (American 6311 on 2026-10-22). 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 451

    7:12 AM → 9:42 AM1h 30m nonstop

    Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as United 1882; its record covers all of them.

    85%

    chance on time

    On time (history)
    87%
    Cancelled
    0.0%
    Avg arrival delay
    11 min
    • Arrived on time 87% of the time (195 flights, Jun 2025 to May 2026).
    • Never cancelled in 195 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 85% on time; After 9 PM: 59%).
    • Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).

    Moderate track record · 195 flights

    Find United 451 fares Opens this date on Aviasales

  2. #2 · Republic 4425 · sold as American Eagle, Delta Connection or United Express

    9:49 AM → 12:21 PM1h 32m nonstop

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

    82%

    chance on time

    On time (history)
    89%
    Cancelled
    0.0%
    Avg arrival delay
    7 min
    • Arrived on time 89% of the time (44 flights, Jun 2025 to May 2026).
    • Never cancelled in 44 scheduled flights.
    • Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
    • Short track record (44 flights), so its score leans on the airline's record at this hour.

    Limited track record · 44 flights

    Find 9:49 AM flight fares Opens this date on Aviasales

  3. #3 · Envoy 3527 · sold as American Eagle

    8:41 AM → 11:12 AM1h 31m nonstop

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

    82%

    chance on time

    On time (history)
    89%
    Cancelled
    0.0%
    Avg arrival delay
    4 min
    • Arrived on time 89% 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: 85% on time; After 9 PM: 59%).
    • 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 · 44 flights

    Find 8:41 AM flight fares Opens this date on Aviasales

  4. #4 · Republic 3662 · sold as American Eagle, Delta Connection or United Express

    7:10 AM → 9:41 AM1h 31m nonstop

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

    82%

    chance on time

    On time (history)
    79%
    Cancelled
    0.0%
    Avg arrival delay
    18 min
    • Arrived on time 79% of the time (24 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 85% on time; After 9 PM: 59%).
    • Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
    • Short track record (24 flights), so its score leans on the airline's record at this hour.

    Limited track record · 24 flights

    Find 7:10 AM flight fares Opens this date on Aviasales

  5. #5 · Republic 3554 · sold as American Eagle, Delta Connection or United Express

    12:57 PM → 3:27 PM1h 30m nonstop

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

    81%

    chance on time

    On time (history)
    83%
    Cancelled
    2.2%
    Avg arrival delay
    14 min
    • Arrived on time 83% of the time (90 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).

    Moderate track record · 90 flights

    Find 12:57 PM flight fares Opens this date on Aviasales

  6. #6 · Envoy 3353 · sold as American Eagle

    7:00 AM → 9:36 AM1h 36m nonstop

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

    80%

    chance on time

    On time (history)
    80%
    Cancelled
    1.1%
    Avg arrival delay
    17 min
    • Arrived on time 80% of the time (90 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 85% on time; After 9 PM: 59%).
    • Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).

    Moderate track record · 90 flights

    Find 7:00 AM flight fares Opens this date on Aviasales

  7. #7 · SkyWest 4953 · sold as United Express, Delta Connection, American Eagle or Alaska

    7:00 AM → 9:33 AM1h 33m nonstop

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

    78%

    chance on time

    On time (history)
    90%
    Cancelled
    9.1%
    Avg arrival delay
    23 min
    • Arrived on time 90% of the time (10 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 85% on time; After 9 PM: 59%).
    • Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
    • Short track record (10 flights), so its score leans on the airline's record at this hour.

    Limited track record · 10 flights

    Find 7:00 AM flight fares Opens this date on Aviasales

  8. #8 · Envoy 3520 · sold as American Eagle

    3:13 PM → 5:45 PM1h 32m nonstop

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

    77%

    chance on time

    On time (history)
    79%
    Cancelled
    0.0%
    Avg arrival delay
    13 min
    • Arrived on time 79% of the time (70 flights, Jun 2025 to May 2026).
    • Never cancelled in 70 scheduled flights.
    • Departs inside ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.
    • 63% of its delay minutes came from the plane arriving late from an earlier flight.

    Moderate track record · 70 flights

    Find 3:13 PM flight fares Opens this date on Aviasales

  9. #9 · Envoy 3565 · sold as American Eagle

    11:40 AM → 2:06 PM1h 26m nonstop

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

    76%

    chance on time

    On time (history)
    88%
    Cancelled
    0.0%
    Avg arrival delay
    15 min
    • Arrived on time 88% of the time (26 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).
    • 67% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (26 flights), so its score leans on the airline's record at this hour.

    Limited track record · 26 flights

    Find 11:40 AM flight fares Opens this date on Aviasales

  10. #10 · SkyWest 4950 · sold as United Express, Delta Connection, American Eagle or Alaska

    12:46 PM → 3:20 PM1h 34m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as SkyWest 5288; its record covers all of them.

    75%

    chance on time

    On time (history)
    84%
    Cancelled
    0.0%
    Avg arrival delay
    13 min
    • Arrived on time 84% of the time (31 flights, Jun 2025 to May 2026).
    • Never cancelled in 31 scheduled flights.
    • Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
    • Short track record (31 flights), so its score leans on the airline's record at this hour.

    Limited track record · 31 flights

    Find 12:46 PM flight fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Republic Airways (sold as American Eagle, Delta Connection or United Express)74%

    1,472 flights · 76% on time as flown · 2.7% cancel

  • Envoy Air (sold as American Eagle)72%

    1,391 flights · 73% on time as flown · 1.8% cancel

  • United Airlines69%

    1,209 flights · 70% on time as flown · 1.4% cancel

  • PSA Airlines (sold as American Eagle)67%

    54 flights · 67% on time as flown · 2.7% cancel

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

    541 flights · 64% on time as flown · 4.3% cancel

  • American Airlines61%

    127 flights · 62% on time as flown · 2.0% cancel

On time by departure time

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

  • Before 9 AM85%

    716 flights · avg delay 12 min

  • 9 AM to noon75%

    735 flights · avg delay 20 min

  • Noon to 3 PM73%

    998 flights · avg delay 18 min

  • 3 to 6 PM69%

    808 flights · avg delay 25 min

  • 6 to 9 PM67%

    1,065 flights · avg delay 26 min

  • After 9 PM59%

    472 flights · avg delay 35 min

Best day: Tuesday (80%). Worst: Sunday (74%).

Smarter routing

Nearby airports that run more on time

  • MDW → CMH 79% chance on time

    Chicago Midway International Airport to John Glenn Columbus International Airport · 1,259 flights a year · 15 mi from your airports · yours: 70%

    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
72
F
80
M
77
A
79
M
76
J
69
J
62
A
76
S
80
O
82
N
82
D
73

What delays this route

  • Late-arriving aircraft43%
  • Airline (crew, maintenance, boarding)25%
  • Air traffic control and airport volume17%
  • Severe weather14%

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

ORD to CMH questions

What time of day is best to fly ORD to CMH?
Before 9 AM: 85% of flights arrived on time, against 59% for departures after 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 ORD to CMH?
Republic, with a season-adjusted 74% chance of operating and arriving on time over 1,472 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 CMH?
July (62% on time); the best was October (82%), 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