Route on-time record
CLE to BOS: most on-time flights and the best time to fly
Cleveland (Cleveland Hopkins International Airport) to Boston (Boston Logan International Airport). 1,701 nonstop flights in Jun 2025 to May 2026, 78% arrived within 15 minutes and 2.2% were cancelled. The most reliable flight number was Republic 5684 at 6:00 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
CLE → BOS
Cleveland to Boston: 1,701 nonstop flights a year
On time (12 months)
78%
Cancelled
2.2%
avg delay 16 min
Best time to leave
Before 9 AM
90% on time vs 58% 6 to 9 PM
Most reliable airline
Frontier
84% chance on time
Lowest nonstop fare seen in the next two months: $218 (JetBlue 640 on 2026-10-26). 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 5684 · sold as American Eagle, Delta Connection or United Express
6:00 AM → 8:00 AM2h 00m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
- On time (history)
- 92%
- Cancelled
- 1.9%
- Avg arrival delay
- 7 min
- Arrived on time 92% of the time (358 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 6 to 9 PM: 58%).
Strong track record · 358 flights
Find 6:00 AM flight fares Opens this date on Aviasales#2 · Republic 5674 · sold as American Eagle, Delta Connection or United Express
11:28 AM → 1:15 PM1h 47m nonstop
Local times, typical schedule. Last flown 2026-05-29.
88%
chance on time
- On time (history)
- 89%
- Cancelled
- 0.0%
- Avg arrival delay
- 6 min
- Arrived on time 89% of the time (180 flights, Jun 2025 to May 2026).
- Never cancelled in 180 scheduled flights.
- Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
Moderate track record · 180 flights
Find 11:28 AM flight fares Opens this date on Aviasales#3 · JetBlue 710
6:29 AM → 8:10 AM1h 41m nonstop
Local times, typical schedule. Last flown 2026-03-30.
79%
chance on time
- On time (history)
- 76%
- Cancelled
- 5.6%
- Avg arrival delay
- 61 min
- Arrived on time 76% of the time (17 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 6 to 9 PM: 58%).
- 86% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (17 flights), so its score leans on the airline's record at this hour.
Limited track record · 17 flights
Find JetBlue 710 fares Opens this date on Aviasales#4 · JetBlue 940
9:01 AM → 10:41 AM1h 39m nonstop
Local times, typical schedule. Last flown 2026-05-20.
77%
chance on time
- On time (history)
- 89%
- Cancelled
- 0.0%
- Avg arrival delay
- 6 min
- Arrived on time 89% of the time (45 flights, Jun 2025 to May 2026).
- Never cancelled in 45 scheduled flights.
- Short track record (45 flights), so its score leans on the airline's record at this hour.
Limited track record · 45 flights
Find JetBlue 940 fares Opens this date on Aviasales#5 · JetBlue 2040
10:06 AM → 11:47 AM1h 41m nonstop
Local times, typical schedule. Last flown 2026-05-31.
74%
chance on time
- On time (history)
- 75%
- Cancelled
- 0.7%
- Avg arrival delay
- 19 min
- Arrived on time 75% of the time (150 flights, Jun 2025 to May 2026).
Moderate track record · 150 flights
Find JetBlue 2040 fares Opens this date on Aviasales#6 · JetBlue 540
7:23 AM → 10:13 PM1h 42m nonstop
Local times, typical schedule. Last flown 2026-05-31.
72%
chance on time
- On time (history)
- 74%
- Cancelled
- 3.0%
- Avg arrival delay
- 19 min
- Arrived on time 74% of the time (194 flights, Jun 2025 to May 2026).
- Cancelled 3.0% of the time (6 of 200).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 6 to 9 PM: 58%).
Moderate track record · 194 flights
Find JetBlue 540 fares Opens this date on Aviasales#7 · Republic 5641 · sold as American Eagle, Delta Connection or United Express
2:00 PM → 3:50 PM1h 57m nonstop
Local times, typical schedule. Last flown 2026-05-31.
67%
chance on time
- On time (history)
- 68%
- Cancelled
- 3.5%
- Avg arrival delay
- 24 min
- Arrived on time 68% of the time (275 flights, Jun 2025 to May 2026).
- Cancelled 3.5% of the time (10 of 285).
- Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
Strong track record · 275 flights
Find 2:00 PM flight fares Opens this date on Aviasales#8 · JetBlue 640
12:00 PM → 1:46 PM1h 44m nonstop
Local times, typical schedule. Last flown 2026-05-31.
60%
chance on time
- On time (history)
- 61%
- Cancelled
- 3.3%
- Avg arrival delay
- 28 min
- Arrived on time 61% of the time (262 flights, Jun 2025 to May 2026).
- Cancelled 3.3% of the time (9 of 272).
- Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
Strong track record · 262 flights
Find JetBlue 640 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Frontier Airlines84%
97 flights · 91% on time as flown · 2.1% cancel
- Republic Airways (sold as American Eagle, Delta Connection or United Express)81%
864 flights · 83% on time as flown · 2.1% cancel
- JetBlue70%
740 flights · 71% on time as flown · 2.3% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM90%
647 flights · avg delay 9 min
- 9 AM to noon82%
387 flights · avg delay 12 min
- Noon to 3 PM72%
251 flights · avg delay 21 min
- 3 to 6 PM61%
349 flights · avg delay 29 min
- 6 to 9 PM58%
63 flights · avg delay 32 min
Best day: Wednesday (86%). Worst: Sunday (78%).
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 volume41%
- Airline (crew, maintenance, boarding)28%
- Late-arriving aircraft28%
- Severe weather2%
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
CLE to BOS questions
- What time of day is best to fly CLE to BOS?
- Before 9 AM: 90% of flights arrived on time, against 58% 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 CLE to BOS?
- Frontier, with a season-adjusted 84% chance of operating and arriving on time over 97 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 CLE to BOS?
- January (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 CLE
- BOS to CLE (return)
- CLE to ORD 74%
- CLE to ATL 85%
- CLE to EWR 80%
- CLE to MCO 78%
- CLE to LGA 76%
- CLE to DEN 81%
- CLE to CLT 81%
- CLE to DFW 75%
- CLE to DCA 65%
- CLE to FLL 80%
- CLE to MDW 82%
- CLE to PHL 75%
Live status: FAA delays and ground stops