Airports › Boston (BOS) › June 2026
Airport month · June 2026
Logan International in June 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 June 2026, reporting carriers scheduled 12,683 domestic departures from Logan International (BOS). 77.0% left less than 15 minutes late and 75.0% reached their destination on time; 1.8% were cancelled.
Nationally that month, 72.2% of flights departed on time and 72.8% arrived on time, so BOS departures were 4.8 points above the national departure figure.
A year earlier, in June 2025, the airport had 12,372 departures with 74.0% leaving on time: a change of +3.0 points, with flights up 3%.
Flights arriving at BOS that month were on time 74.4% of the time (12,690 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 44%, national aviation system 30% and air carrier 25%.
- On time 75.0%
- Arrived 15+ minutes late 22.9%
- Cancelled 1.8%
- Diverted 0.3%
June 2026 against a year earlier, the airport's year and the nation
| Measure | Jun 2026 | Jun 2025 | BOS, 12 months to Jul 2026 | All reported flights, Jun 2026 |
|---|---|---|---|---|
| Departed on time | 77.0% | 74.0% | 74.4% | 72.2% |
| Arrived on time | 75.0% | 72.8% | 73.3% | 72.8% |
| Cancelled | 1.8% | 1.3% | 2.8% | 1.6% |
| Average departure delay (late minutes only) | 17.4 min | 19.9 min | 18.3 min | 20.6 min |
| Scheduled departures a day | 423 | 412 | 393 | 20,253 |
| Scheduled departures | 12,683 | 12,372 | 143,447 | 607,577 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| B6 JetBlue Airways | 3,156 | 25% | 70.9% | 11.2 min | 1.6% |
| YX Republic Airline | 3,121 | 25% | 79.2% | 2.7 min | 2.4% |
| DL Delta Air Lines | 2,292 | 18% | 76.0% | 7.5 min | 1.4% |
| AA American Airlines | 1,593 | 13% | 79.0% | 4.4 min | 2.4% |
| UA United Airlines | 1,217 | 10% | 73.9% | 12.5 min | 1.1% |
| WN Southwest Airlines | 722 | 6% | 63.0% | 18.6 min | 0.7% |
| AS Alaska Airlines | 240 | 2% | 76.3% | -1.5 min | 0.4% |
| MQ Envoy Air | 198 | 2% | 81.3% | 1.3 min | 3.0% |
| F9 Frontier Airlines | 77 | 1% | 71.4% | 2.2 min | 5.2% |
| G4 Allegiant Air | 67 | 1% | 76.1% | 15.0 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| BOS–DCA | Boston to Washington | 757 | 71.6% | 11.5 min | 3.4% |
| BOS–ORD | Boston to Chicago | 750 | 74.3% | 15.0 min | 2.8% |
| BOS–LGA | Boston to New York | 661 | 77.6% | 7.3 min | 4.4% |
| BOS–SFO | Boston to San Francisco | 502 | 55.8% | 23.6 min | 1.0% |
| BOS–ATL | Boston to Atlanta | 465 | 81.9% | 1.9 min | 1.3% |
| BOS–PHL | Boston to Philadelphia | 458 | 78.2% | 6.7 min | 2.2% |
| BOS–LAX | Boston to Los Angeles | 452 | 68.4% | 11.0 min | 0.7% |
| BOS–JFK | Boston to New York | 430 | 70.0% | 9.1 min | 5.3% |
| BOS–DEN | Boston to Denver | 374 | 70.1% | 10.2 min | 0.3% |
| BOS–CLT | Boston to Charlotte | 352 | 87.2% | -3.6 min | 0.9% |
| BOS–DFW | Boston to Dallas/Fort Worth | 330 | 66.4% | 10.4 min | 5.2% |
| BOS–EWR | Boston to Newark | 327 | 75.2% | 13.1 min | 3.1% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left BOS on time in June 2026?
77.0% of 12,683 scheduled domestic departures left less than 15 minutes late, and 75.0% reached their destination on time. The national figures that month were 72.2% and 72.8%.
How does that compare with a year earlier?
In June 2025, 74.0% of 12,372 departures left on time and 1.3% were cancelled, against 77.0% and 1.8% in June 2026.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for June 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.