Indianapolis (IND) to Boston (BOS): On-Time Performance
Data through May 2026
The calendar drives reliability on IND–BOS. October 2024 flights landed on schedule 93% of the time, but September 2025 dropped to 61% — a gap of 32 points. Across the full period the route averages 81% on-time against a national 78%. Morning departures also hold up better than evening ones (91% vs 69%), which matters most in the rough months.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 13 min
- completed flights
- Cancelled
- 1.8%
- Flights/day
- 5.5
- last 12 months
- Duration
- 2h 21m
- scheduled
- Distance
- 818 mi
Monthly on-time trend
Best time to fly from IND to BOS
Aim for departures around 8 a.m. (95% on-time); avoid 5 p.m. departures (67%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 79% | 14 min |
| Tuesday | 82% | 13 min |
| Wednesday | 83% | 11 min |
| Thursday | 78% | 15 min |
| Friday | 79% | 15 min |
| Saturdaybest | 87% | 8 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 aircraft25%
- Airline operations18%
- National airspace system52%
- Weather5%
Frequently asked questions
- How often are flights from IND to BOS delayed?
- 19% of IND–BOS 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 13 minutes.
- What is the best time of day to fly from IND to BOS?
- Departures around 8 a.m. have the best record (95% on-time), while departures around 5 p.m. have the worst (67%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from IND to BOS?
- The scheduled IND–BOS flight time averages 2h 21m over 818 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are IND to BOS flights cancelled?
- 1.8% 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 IND to BOS?
- September 2025 was the roughest month in this dataset, with only 61% of arrivals on time. The best was October 2024 at 93%. If your dates are flexible, that 32-point gap is worth planning around.
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Based on 4,017 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.