Cleveland (CLE) to Boston (BOS): On-Time Performance
Data through July 2026
Cleveland (CLE) to Boston (BOS) effectively runs on two schedules. In April 2025, 95% of arrivals were on time; in December 2025 that fell to 67% — a 28-point seasonal swing. Across the full period the route averages 81% on-time against a national 78%. Morning departures also hold up better than evening ones (88% vs 68%), which matters most in the rough months.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 15 min
- completed flights
- Cancelled
- 1.8%
- Flights/day
- 4.5
- last 12 months
- Duration
- 1h 53m
- scheduled
- Distance
- 563 mi
Best airline from CLE to BOS
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Frontier Airlinesmost reliable | 91% | 4 min | 2.0% | 101 |
| Republic Airways | 85% | 12 min | 1.5% | 1,848 |
| JetBlue Airways | 75% | 20 min | 2.2% | 1,557 |
Monthly on-time trend
Best time to fly from CLE to BOS
Aim for departures around 6 a.m. (91% on-time); avoid 4 p.m. departures (53%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 16 min |
| Tuesday | 83% | 15 min |
| Wednesdaybest | 85% | 12 min |
| Thursday | 78% | 18 min |
| Friday | 80% | 16 min |
| Saturday | 84% | 12 min |
| Sunday | 79% | 17 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft26%
- Airline operations35%
- National airspace system38%
- Weather2%
Frequently asked questions
- How often are flights from CLE to BOS delayed?
- 19% of CLE–BOS flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 15 minutes.
- Which airline is most reliable from CLE to BOS?
- Frontier Airlines has the best on-time record on this route at 91%, based on 101 flights. 3 airlines flew CLE–BOS frequently enough to compare in this period.
- What is the best time of day to fly from CLE to BOS?
- Departures around 6 a.m. have the best record (91% on-time), while departures around 4 p.m. have the worst (53%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from CLE to BOS?
- The scheduled CLE–BOS flight time averages 1h 53m over 563 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are CLE to BOS flights cancelled?
- 1.8% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from CLE to BOS?
- December 2025 was the roughest month in this dataset, with only 67% of arrivals on time. The best was April 2025 at 95%. If your dates are flexible, that 28-point gap is worth planning around.
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Based on 3,506 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.