Route on-time record
CMH to BOS: most on-time flights and the best time to fly
Columbus (John Glenn Columbus International Airport) to Boston (Boston Logan International Airport). 2,003 nonstop flights in Jun 2025 to May 2026, 81% arrived within 15 minutes and 2.1% were cancelled. The most reliable flight number was Republic 4642 at 8:00 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
CMH → BOS
Columbus to Boston: 2,003 nonstop flights a year
On time (12 months)
81%
Cancelled
2.1%
avg delay 12 min
Best time to leave
Before 9 AM
92% on time vs 61% 3 to 6 PM
Most reliable airline
Republic
81% chance on time
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 4642 · sold as American Eagle, Delta Connection or United Express
8:00 AM → 10:02 AM2h 02m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
- On time (history)
- 92%
- Cancelled
- 1.7%
- Avg arrival delay
- 6 min
- Arrived on time 92% of the time (347 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 92% on time; 3 to 6 PM: 61%).
Strong track record · 347 flights
Find 8:00 AM flight fares Opens this date on Aviasales#2 · Republic 5663 · sold as American Eagle, Delta Connection or United Express
6:00 AM → 8:06 AM2h 10m nonstop
Local times, typical schedule. Last flown 2026-05-31.
89%
chance on time
- On time (history)
- 91%
- Cancelled
- 1.4%
- Avg arrival delay
- 4 min
- Arrived on time 91% of the time (358 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 92% on time; 3 to 6 PM: 61%).
Strong track record · 358 flights
Find 6:00 AM flight fares Opens this date on Aviasales#3 · Republic 4399 · sold as American Eagle, Delta Connection or United Express
10:49 AM → 12:53 PM2h 04m nonstop
Local times, typical schedule. Last flown 2026-05-31.
84%
chance on time
- On time (history)
- 89%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 89% of the time (9 flights, Jun 2025 to May 2026).
- Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
- Short track record (9 flights), so its score leans on the airline's record at this hour.
Limited track record · 9 flights
Find 10:49 AM flight fares Opens this date on Aviasales#4 · Republic 4389 · sold as American Eagle, Delta Connection or United Express
12:40 PM → 2:40 PM2h 00m nonstop
Local times, typical schedule. Last flown 2026-04-06.
84%
chance on time
- On time (history)
- 87%
- Cancelled
- 2.5%
- Avg arrival delay
- 7 min
- Arrived on time 87% of the time (159 flights, Jun 2025 to May 2026).
- Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
Moderate track record · 159 flights
Find 12:40 PM flight fares Opens this date on Aviasales#5 · Republic 4412 · sold as American Eagle, Delta Connection or United Express
12:13 PM → 2:17 PM2h 04m nonstop
Local times, typical schedule. Last flown 2026-05-20.
82%
chance on time
- On time (history)
- 85%
- Cancelled
- 0.0%
- Avg arrival delay
- 6 min
- Arrived on time 85% of the time (39 flights, Jun 2025 to May 2026).
- Never cancelled in 39 scheduled flights.
- Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
- Short track record (39 flights), so its score leans on the airline's record at this hour.
Limited track record · 39 flights
Find 12:13 PM flight fares Opens this date on Aviasales#6 · Republic 5654 · sold as American Eagle, Delta Connection or United Express
11:21 AM → 1:22 PM2h 03m nonstop
Local times, typical schedule. Last flown 2026-05-31.
80%
chance on time
- On time (history)
- 82%
- Cancelled
- 4.2%
- Avg arrival delay
- 9 min
- Arrived on time 82% of the time (91 flights, Jun 2025 to May 2026).
- Cancelled 4.2% of the time (4 of 96).
- Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
Moderate track record · 91 flights
Find 11:21 AM flight fares Opens this date on Aviasales#7 · Republic 4351 · sold as American Eagle, Delta Connection or United Express
6:04 PM → 8:05 PM2h 01m nonstop
Local times, typical schedule. Last flown 2026-04-06.
76%
chance on time
- On time (history)
- 76%
- Cancelled
- 2.4%
- Avg arrival delay
- 14 min
- Arrived on time 76% of the time (41 flights, Jun 2025 to May 2026).
- Short track record (41 flights), so its score leans on the airline's record at this hour.
Limited track record · 41 flights
Find 6:04 PM flight fares Opens this date on Aviasales#8 · Republic 4712 · sold as American Eagle, Delta Connection or United Express
5:17 PM → 7:23 PM2h 06m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as Republic 5787; its record covers all of them.
71%
chance on time
- On time (history)
- 76%
- Cancelled
- 2.9%
- Avg arrival delay
- 14 min
- Arrived on time 76% of the time (66 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 61% on time; Before 9 AM: 92%).
Moderate track record · 66 flights
Find 5:17 PM flight fares Opens this date on Aviasales#9 · Republic 5682 · sold as American Eagle, Delta Connection or United Express
5:00 PM → 7:11 PM2h 11m nonstop
Local times, typical schedule. Last flown 2026-05-31.
69%
chance on time
- On time (history)
- 75%
- Cancelled
- 0.0%
- Avg arrival delay
- 7 min
- Arrived on time 75% of the time (20 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 61% on time; Before 9 AM: 92%).
- Short track record (20 flights), so its score leans on the airline's record at this hour.
Limited track record · 20 flights
Find 5:00 PM flight fares Opens this date on Aviasales#10 · Republic 5861 · sold as American Eagle, Delta Connection or United Express
5:40 PM → 7:48 PM2h 08m nonstop
Local times, typical schedule. Last flown 2026-05-06.
63%
chance on time
- On time (history)
- 52%
- Cancelled
- 0.0%
- Avg arrival delay
- 33 min
- Arrived on time 52% of the time (21 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 61% on time; Before 9 AM: 92%).
- Short track record (21 flights), so its score leans on the airline's record at this hour.
Limited track record · 21 flights
Find 5:40 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)81%
1,918 flights · 83% on time as flown · 2.2% cancel
- Envoy Air (sold as American Eagle)71%
67 flights · 64% on time as flown · 1.9% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM92%
747 flights · avg delay 5 min
- 9 AM to noon87%
415 flights · avg delay 9 min
- Noon to 3 PM79%
305 flights · avg delay 13 min
- 3 to 6 PM61%
437 flights · avg delay 29 min
- 6 to 9 PM82%
89 flights · avg delay 10 min
Best day: Tuesday (88%). Worst: Friday (81%).
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 volume54%
- Late-arriving aircraft23%
- Airline (crew, maintenance, boarding)20%
- Severe weather3%
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 BOS questions
- What time of day is best to fly CMH to BOS?
- Before 9 AM: 92% of flights arrived on time, against 61% 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 CMH to BOS?
- Republic, with a season-adjusted 81% chance of operating and arriving on time over 1,918 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 BOS?
- September (77% on time); the best was November (89%), 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
- BOS to CMH (return)
- CMH to ORD 74%
- CMH to ATL 86%
- CMH to LGA 78%
- CMH to MCO 78%
- CMH to DCA 68%
- CMH to CLT 83%
- 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