Route on-time record
CMH to ORD: most on-time flights and the best time to fly
Columbus (John Glenn Columbus International Airport) to Chicago (Chicago O'Hare International Airport). 4,791 nonstop flights in Jun 2025 to May 2026, 74% arrived within 15 minutes and 2.2% were cancelled. The most reliable flight number was Republic 3524 at 5:30 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
CMH → ORD
Columbus to Chicago: 4,791 nonstop flights a year
On time (12 months)
74%
Cancelled
2.2%
avg delay 24 min
Best time to leave
Before 9 AM
82% on time vs 55% 6 to 9 PM
Most reliable airline
Republic
82% chance on time
Lowest nonstop fare seen in the next two months: $231 (United 5370 on 2026-10-19). 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 · Republic 3524 · sold as American Eagle, Delta Connection or United Express
5:30 AM → 6:12 AM1h 37m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Republic 4487, 3677; its record covers all of them.
93%
chance on time
- On time (history)
- 94%
- Cancelled
- 1.2%
- Avg arrival delay
- 5 min
- Arrived on time 94% of the time (422 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 82% on time; 6 to 9 PM: 55%).
Strong track record · 422 flights
Find 5:30 AM flight fares Opens this date on Aviasales#2 · Republic 3491 · sold as American Eagle, Delta Connection or United Express
10:27 AM → 11:01 AM1h 34m nonstop
Local times, typical schedule. Last flown 2026-03-28.
84%
chance on time
- On time (history)
- 86%
- Cancelled
- 3.7%
- Avg arrival delay
- 10 min
- Arrived on time 86% of the time (79 flights, Jun 2025 to May 2026).
- Cancelled 3.7% of the time (3 of 82).
Moderate track record · 79 flights
Find 10:27 AM flight fares Opens this date on Aviasales#3 · Envoy 3527 · sold as American Eagle
11:42 AM → 12:20 PM1h 38m nonstop
Local times, typical schedule. Last flown 2026-05-20.
84%
chance on time
- On time (history)
- 93%
- Cancelled
- 0.0%
- Avg arrival delay
- 14 min
- Arrived on time 93% of the time (44 flights, Jun 2025 to May 2026).
- Never cancelled in 44 scheduled flights.
- Short track record (44 flights), so its score leans on the airline's record at this hour.
Limited track record · 44 flights
Find 11:42 AM flight fares Opens this date on Aviasales#4 · Republic 4430 · sold as American Eagle, Delta Connection or United Express
9:12 PM → 9:45 PM1h 33m nonstop
Local times, typical schedule. Last flown 2026-05-31.
84%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 14 min
- Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
- 93% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find 9:12 PM flight fares Opens this date on Aviasales#5 · Republic 4425 · sold as American Eagle, Delta Connection or United Express
12:51 PM → 1:33 PM1h 42m nonstop
Local times, typical schedule. Last flown 2026-05-20.
83%
chance on time
- On time (history)
- 88%
- Cancelled
- 2.3%
- Avg arrival delay
- 10 min
- Arrived on time 88% of the time (43 flights, Jun 2025 to May 2026).
- Short track record (43 flights), so its score leans on the airline's record at this hour.
Limited track record · 43 flights
Find 12:51 PM flight fares Opens this date on Aviasales#6 · Envoy 4041 · sold as American Eagle
6:38 AM → 7:20 AM1h 42m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
- On time (history)
- 78%
- Cancelled
- 0.0%
- Avg arrival delay
- 16 min
- Arrived on time 78% of the time (63 flights, Jun 2025 to May 2026).
- Never cancelled in 63 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 82% on time; 6 to 9 PM: 55%).
Moderate track record · 63 flights
Find 6:38 AM flight fares Opens this date on Aviasales#7 · Republic 3484 · sold as American Eagle, Delta Connection or United Express
9:00 AM → 9:38 AM1h 38m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Republic 3520, 3522; its record covers all of them.
80%
chance on time
- On time (history)
- 83%
- Cancelled
- 0.9%
- Avg arrival delay
- 16 min
- Arrived on time 83% of the time (108 flights, Jun 2025 to May 2026).
Moderate track record · 108 flights
Find 9:00 AM flight fares Opens this date on Aviasales#8 · Republic 3693 · sold as American Eagle, Delta Connection or United Express
7:00 AM → 7:37 AM1h 37m nonstop
Local times, typical schedule. Last flown 2026-04-29.
80%
chance on time
- On time (history)
- 81%
- Cancelled
- 3.6%
- Avg arrival delay
- 10 min
- Arrived on time 81% of the time (27 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 82% on time; 6 to 9 PM: 55%).
- Short track record (27 flights), so its score leans on the airline's record at this hour.
Limited track record · 27 flights
Find 7:00 AM flight fares Opens this date on Aviasales#9 · Envoy 3517 · sold as American Eagle
10:22 AM → 11:00 AM1h 38m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as Envoy 3353; its record covers all of them.
79%
chance on time
- On time (history)
- 82%
- Cancelled
- 1.9%
- Avg arrival delay
- 15 min
- Arrived on time 82% of the time (102 flights, Jun 2025 to May 2026).
Moderate track record · 102 flights
Find 10:22 AM flight fares Opens this date on Aviasales#10 · Republic 3492 · sold as American Eagle, Delta Connection or United Express
7:53 PM → 8:37 PM1h 44m nonstop
Local times, typical schedule. Last flown 2026-05-20.
78%
chance on time
- On time (history)
- 91%
- Cancelled
- 8.3%
- Avg arrival delay
- 3 min
- Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (6 to 9 PM: 55% on time; Before 9 AM: 82%).
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find 7:53 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)82%
1,470 flights · 84% on time as flown · 1.9% cancel
- American Airlines78%
128 flights · 86% on time as flown · 2.3% cancel
- Envoy Air (sold as American Eagle)72%
1,388 flights · 74% on time as flown · 1.8% cancel
- PSA Airlines (sold as American Eagle)68%
54 flights · 70% on time as flown · 2.1% cancel
- United Airlines65%
1,210 flights · 65% on time as flown · 1.6% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)60%
541 flights · 60% on time as flown · 4.7% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM82%
1,682 flights · avg delay 17 min
- 9 AM to noon81%
1,051 flights · avg delay 17 min
- Noon to 3 PM72%
773 flights · avg delay 29 min
- 3 to 6 PM59%
742 flights · avg delay 32 min
- 6 to 9 PM55%
526 flights · avg delay 42 min
Best day: Saturday (81%). Worst: Sunday (75%).
Smarter routing
Nearby airports that run more on time
CMH → MDW 80% chance on time
John Glenn Columbus International Airport to Chicago Midway International Airport · 1,263 flights a year · 15 mi from your airports · yours: 72%
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.
What delays this route
- Air traffic control and airport volume35%
- Late-arriving aircraft31%
- Airline (crew, maintenance, boarding)28%
- Severe weather7%
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
CMH to ORD questions
- What time of day is best to fly CMH to ORD?
- Before 9 AM: 82% of flights arrived on time, against 55% 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 CMH to ORD?
- Republic, with a season-adjusted 82% chance of operating and arriving on time over 1,470 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 CMH to ORD?
- July (69% on time); the best was February (83%), 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 CMH
- ORD to CMH (return)
- CMH to ATL 86%
- CMH to LGA 78%
- CMH to MCO 78%
- CMH to DCA 68%
- CMH to CLT 83%
- CMH to BOS 81%
- CMH to EWR 82%
- CMH to DEN 78%
- CMH to DFW 78%
- CMH to JFK 83%
- CMH to DTW 85%
- CMH to PHL 78%
Live status: FAA delays and ground stops