Airports › Boston (BOS) › July 2026
Airport month · July 2026
Logan International in July 2026
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.
In July 2026, reporting carriers scheduled 13,277 domestic departures from Logan International (BOS). 65.6% left less than 15 minutes late and 66.3% reached their destination on time; 5.9% were cancelled.
Nationally that month, 68.8% of flights departed on time and 69.4% arrived on time, so BOS departures were 3.2 points below the national departure figure.
A year earlier, in July 2025, the airport had 12,912 departures with 69.2% leaving on time: a change of −3.6 points, with flights up 3%.
Flights arriving at BOS that month were on time 62.4% of the time (13,277 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 42%, air carrier 30% and national aviation system 26%.
- On time 66.3%
- Arrived 15+ minutes late 27.4%
- Cancelled 5.9%
- Diverted 0.4%
July 2026 against a year earlier, the airport's year and the nation
| Measure | Jul 2026 | Jul 2025 | BOS, 12 months to Jul 2026 | All reported flights, Jul 2026 |
|---|---|---|---|---|
| Departed on time | 65.6% | 69.2% | 74.4% | 68.8% |
| Arrived on time | 66.3% | 67.7% | 73.3% | 69.4% |
| Cancelled | 5.9% | 4.1% | 2.8% | 2.6% |
| Average departure delay (late minutes only) | 26.2 min | 24.4 min | 18.3 min | 24.1 min |
| Scheduled departures a day | 443 | 430 | 393 | 21,066 |
| Scheduled departures | 13,277 | 12,912 | 143,447 | 631,970 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| B6 JetBlue Airways | 3,355 | 25% | 56.8% | 24.4 min | 9.3% |
| YX Republic Airline | 3,312 | 25% | 66.0% | 11.7 min | 8.4% |
| DL Delta Air Lines | 2,387 | 18% | 72.2% | 9.7 min | 3.0% |
| AA American Airlines | 1,628 | 12% | 73.3% | 11.9 min | 3.9% |
| UA United Airlines | 1,203 | 9% | 71.6% | 16.7 min | 2.7% |
| WN Southwest Airlines | 768 | 6% | 60.9% | 19.3 min | 2.9% |
| AS Alaska Airlines | 264 | 2% | 72.7% | 12.1 min | 0.8% |
| MQ Envoy Air | 205 | 2% | 78.5% | 14.6 min | 2.0% |
| F9 Frontier Airlines | 81 | 1% | 67.9% | 11.1 min | 1.2% |
| G4 Allegiant Air | 74 | 1% | 73.0% | 5.4 min | 1.4% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| BOS–ORD | Boston to Chicago | 786 | 69.1% | 19.9 min | 4.6% |
| BOS–DCA | Boston to Washington | 760 | 61.4% | 21.2 min | 9.5% |
| BOS–LGA | Boston to New York | 683 | 61.5% | 16.1 min | 12.0% |
| BOS–SFO | Boston to San Francisco | 509 | 61.5% | 18.0 min | 2.9% |
| BOS–LAX | Boston to Los Angeles | 484 | 71.9% | 15.7 min | 3.1% |
| BOS–ATL | Boston to Atlanta | 467 | 64.7% | 15.9 min | 3.2% |
| BOS–PHL | Boston to Philadelphia | 441 | 63.5% | 17.3 min | 7.9% |
| BOS–JFK | Boston to New York | 427 | 54.8% | 25.3 min | 13.8% |
| BOS–DEN | Boston to Denver | 396 | 70.2% | 10.9 min | 2.8% |
| BOS–CLT | Boston to Charlotte | 361 | 73.7% | 8.4 min | 4.4% |
| BOS–MCO | Boston to Orlando | 353 | 64.3% | 19.7 min | 5.9% |
| BOS–DFW | Boston to Dallas/Fort Worth | 335 | 78.2% | -0.1 min | 3.6% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left BOS on time in July 2026?
65.6% of 13,277 scheduled domestic departures left less than 15 minutes late, and 66.3% reached their destination on time. The national figures that month were 68.8% and 69.4%.
How does that compare with a year earlier?
In July 2025, 69.2% of 12,912 departures left on time and 4.1% were cancelled, against 65.6% and 5.9% in July 2026.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for July 2026; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for BOS · methodology · corrections.