Route on-time record
CVG to BOS: most on-time flights and the best time to fly
Cincinnati / Covington (Cincinnati Northern Kentucky International Airport) to Boston (Boston Logan International Airport). 1,907 nonstop flights in Jun 2025 to May 2026, 79% arrived within 15 minutes and 2.8% were cancelled. The most reliable flight number was Envoy 3807 at 7:10 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
CVG → BOS
Cincinnati / Covington to Boston: 1,907 nonstop flights a year
On time (12 months)
79%
Cancelled
2.8%
avg delay 14 min
Best time to leave
Before 9 AM
91% on time vs 60% 3 to 6 PM
Most reliable airline
Envoy
89% chance on time
Lowest nonstop fare seen in the next two months: $402 (American 3807 on 2026-10-24). 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 · Envoy 3807 · sold as American Eagle
7:10 AM → 9:24 AM2h 14m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Envoy 4264; its record covers all of them.
91%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.8%
- Avg arrival delay
- 8 min
- Arrived on time 92% of the time (361 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; 3 to 6 PM: 60%).
Strong track record · 361 flights
Find 7:10 AM flight fares Opens this date on Aviasales#2 · Republic 5790 · sold as American Eagle, Delta Connection or United Express
6:00 AM → 9:15 AM2h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31.
84%
chance on time
- On time (history)
- 90%
- Cancelled
- 4.0%
- Avg arrival delay
- 6 min
- Arrived on time 90% of the time (143 flights, Jun 2025 to May 2026).
- Cancelled 4.0% of the time (6 of 149).
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; 3 to 6 PM: 60%).
Moderate track record · 143 flights
Find 6:00 AM flight fares Opens this date on Aviasales#3 · Republic 5598 · sold as American Eagle, Delta Connection or United Express
7:59 PM → 10:16 PM2h 17m nonstop
Local times, typical schedule. Last flown 2026-05-06.
80%
chance on time
- On time (history)
- 94%
- Cancelled
- 5.6%
- Avg arrival delay
- 3 min
- Arrived on time 94% of the time (17 flights, Jun 2025 to May 2026).
- Short track record (17 flights), so its score leans on the airline's record at this hour.
Limited track record · 17 flights
Find 7:59 PM flight fares Opens this date on Aviasales#4 · Republic 5620 · sold as American Eagle, Delta Connection or United Express
8:30 PM → 10:51 PM2h 21m nonstop
Local times, typical schedule. Last flown 2026-05-31.
78%
chance on time
- On time (history)
- 90%
- Cancelled
- 0.0%
- Avg arrival delay
- 8 min
- Arrived on time 90% of the time (20 flights, Jun 2025 to May 2026).
- Short track record (20 flights), so its score leans on the airline's record at this hour.
Limited track record · 20 flights
Find 8:30 PM flight fares Opens this date on Aviasales#5 · Republic 5601 · sold as American Eagle, Delta Connection or United Express
11:35 AM → 1:45 PM2h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31.
78%
chance on time
- On time (history)
- 81%
- Cancelled
- 3.9%
- Avg arrival delay
- 11 min
- Arrived on time 81% of the time (297 flights, Jun 2025 to May 2026).
- Cancelled 3.9% of the time (12 of 309).
- Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
Strong track record · 297 flights
Find 11:35 AM flight fares Opens this date on Aviasales#6 · Republic 4761 · sold as American Eagle, Delta Connection or United Express
1:10 PM → 3:30 PM2h 20m nonstop
Local times, typical schedule. Last flown 2026-05-20.
73%
chance on time
- On time (history)
- 77%
- Cancelled
- 1.7%
- Avg arrival delay
- 12 min
- Arrived on time 77% of the time (57 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 (57 flights), so its score leans on the airline's record at this hour.
Limited track record · 57 flights
Find 1:10 PM flight fares Opens this date on Aviasales#7 · Republic 4663 · sold as American Eagle, Delta Connection or United Express
2:32 PM → 4:45 PM2h 13m nonstop
Local times, typical schedule. Last flown 2026-04-06.
68%
chance on time
- On time (history)
- 73%
- Cancelled
- 0.0%
- Avg arrival delay
- 19 min
- Arrived on time 73% of the time (45 flights, Jun 2025 to May 2026).
- Never cancelled in 45 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 (45 flights), so its score leans on the airline's record at this hour.
Limited track record · 45 flights
Find 2:32 PM flight fares Opens this date on Aviasales#8 · Republic 5707 · sold as American Eagle, Delta Connection or United Express
2:45 PM → 5:09 PM2h 24m nonstop
Local times, typical schedule. Last flown 2026-05-29.
68%
chance on time
- On time (history)
- 81%
- Cancelled
- 0.0%
- Avg arrival delay
- 13 min
- Arrived on time 81% of the time (16 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 (16 flights), so its score leans on the airline's record at this hour.
Limited track record · 16 flights
Find 2:45 PM flight fares Opens this date on Aviasales#9 · Republic 5674 · sold as American Eagle, Delta Connection or United Express
2:20 PM → 4:30 PM2h 10m nonstop
Local times, typical schedule. Last flown 2026-04-12.
67%
chance on time
- On time (history)
- 75%
- Cancelled
- 4.0%
- Avg arrival delay
- 9 min
- Arrived on time 75% of the time (24 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 (24 flights), so its score leans on the airline's record at this hour.
Limited track record · 24 flights
Find 2:20 PM flight fares Opens this date on Aviasales#10 · Republic 5789 · sold as American Eagle, Delta Connection or United Express
6:00 PM → 8:14 PM2h 19m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Republic 5860; its record covers all of them.
63%
chance on time
- On time (history)
- 64%
- Cancelled
- 3.3%
- Avg arrival delay
- 23 min
- Arrived on time 64% of the time (318 flights, Jun 2025 to May 2026).
- Cancelled 3.3% of the time (11 of 329).
Strong track record · 318 flights
Find 6:00 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)89%
364 flights · 92% on time as flown · 1.4% cancel
- Republic Airways (sold as American Eagle, Delta Connection or United Express)74%
1,525 flights · 77% on time as flown · 3.2% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM91%
701 flights · avg delay 7 min
- 9 AM to noon81%
252 flights · avg delay 11 min
- Noon to 3 PM72%
453 flights · avg delay 18 min
- 3 to 6 PM60%
278 flights · avg delay 26 min
- 6 to 9 PM80%
173 flights · avg delay 11 min
Best day: Saturday (87%). Worst: Friday (77%).
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 volume56%
- Late-arriving aircraft20%
- Airline (crew, maintenance, boarding)20%
- Severe weather4%
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
CVG to BOS questions
- What time of day is best to fly CVG to BOS?
- Before 9 AM: 91% of flights arrived on time, against 60% 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 CVG to BOS?
- Envoy, with a season-adjusted 89% chance of operating and arriving on time over 364 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 CVG to BOS?
- July (73% on time); the best was November (87%), 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 CVG
- BOS to CVG (return)
- CVG to ORD 70%
- CVG to ATL 86%
- CVG to CLT 79%
- CVG to MCO 79%
- CVG to DFW 74%
- CVG to DEN 81%
- CVG to PHL 78%
- CVG to DCA 62%
- CVG to MIA 79%
- CVG to FLL 76%
- CVG to MSP 85%
- CVG to SLC 83%
Live status: FAA delays and ground stops