Boston (BOS) to Charlotte (CLT): On-Time Performance
Data through May 2026
The calendar drives reliability on BOS–CLT. April 2026 flights landed on schedule 91% of the time, but September 2025 dropped to 72% — a gap of 19 points. Across the full period the route averages 82% 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
- 82%
- arrived <15 min late
- Avg delay
- 16 min
- completed flights
- Cancelled
- 2.2%
- Flights/day
- 11
- last 12 months
- Duration
- 2h 33m
- scheduled
- Distance
- 728 mi
Best airline from BOS to CLT
5 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| American Airlinesmost reliable | 83% | 16 min | 2.0% | 5,643 |
| Republic Airways | 81% | 12 min | 2.2% | 2,788 |
| JetBlue Airways | 80% | 15 min | 1.2% | 248 |
| Frontier Airlines | 69% | 28 min | 3.3% | 150 |
| Spirit Airlines | 64% | 33 min | 9.2% | 163 |
Monthly on-time trend
Best time to fly from BOS to CLT
Aim for departures around 5 a.m. (94% on-time); avoid 7 p.m. departures (63%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 17 min |
| Tuesday | 85% | 12 min |
| Wednesdaybest | 86% | 14 min |
| Thursday | 78% | 18 min |
| Friday | 81% | 17 min |
| Saturday | 85% | 14 min |
| Sunday | 80% | 16 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft43%
- Airline operations34%
- National airspace system19%
- Weather3%
Frequently asked questions
- How often are flights from BOS to CLT delayed?
- 18% of BOS–CLT flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 16 minutes.
- Which airline is most reliable from BOS to CLT?
- American Airlines has the best on-time record on this route at 83%, based on 5,643 flights. 5 airlines flew BOS–CLT frequently enough to compare in this period.
- What is the best time of day to fly from BOS to CLT?
- Departures around 5 a.m. have the best record (94% on-time), while departures around 7 p.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BOS to CLT?
- The scheduled BOS–CLT flight time averages 2h 33m over 728 miles. Actual arrival times vary — flights on this route land 15+ minutes late 18% of the time.
- How often are BOS to CLT flights cancelled?
- 2.2% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, slightly above the national rate of 1.6%.
- What is the worst month to fly from BOS to CLT?
- September 2025 was the roughest month in this dataset, with only 72% of arrivals on time. The best was April 2026 at 91%. If your dates are flexible, that 19-point gap is worth planning around.
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Based on 8,997 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.