Airport Reliability
BOS · Boston
Boston Logan International Airport
- 77%
- Departures within 15 minutes
- 15 min
- Average departure delay
- 74%
- Arrivals within 15 minutes
- 2.6%
- Departures cancelled
Based on 143,944 departures and 143,932 arrivals. Data through May 2026.
What the data says
Morning flights do better here.
Departures from BOS departing between 3–6 AM arrived on time 93% of the time, versus 61% between 6–9 PM.
Sunday scaries are real for this one.
Departures from BOS arrived on time 80% of the time on Wednesdays. On Sundays: 71%.
Ticking up lately.
Departures from BOS arrived on time 78% of the time over the last three months in the data, compared with 73% in the three months before that.
When BOS gets messy
- 3–6 AM93%(4365 flights)
- 6–9 AM87%(35776 flights)
- 9 AM–12 PM84%(26213 flights)
- 12–3 PM76%(20728 flights)
- 3–6 PM66%(26916 flights)
- 6–9 PM61%(23637 flights)
- 9 PM–12 AM61%(2182 flights)
- Mon76%(20543 flights)
- Tue79%(19582 flights)
- Wed80%(19678 flights)
- Thu74%(20967 flights)
- Fri75%(21190 flights)
- Sat78%(16979 flights)
- Sun71%(20878 flights)
80%
May
Jun 75% → May 80% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 75% | 12290 |
| July 2025 | 71% | 12439 |
| August 2025 | 82% | 12414 |
| September 2025 | 76% | 11534 |
| October 2025 | 75% | 12547 |
| November 2025 | 79% | 11160 |
| December 2025 | 69% | 11142 |
| January 2026 | 74% | 9603 |
| February 2026 | 75% | 9477 |
| March 2026 | 75% | 12046 |
| April 2026 | 80% | 12582 |
| May 2026 | 80% | 12583 |
Airlines departing BOS
Busiest routes from BOS
Based on 143,944 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.