Airports › Boston (BOS) › August 2023
Airport month · August 2023
Logan International in August 2023
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 August 2023, reporting carriers scheduled 12,389 domestic departures from Logan International (BOS). 72.8% left less than 15 minutes late and 71.5% reached their destination on time; 1.4% were cancelled.
Nationally that month, 76.7% of flights departed on time and 76.9% arrived on time, so BOS departures were 3.9 points below the national departure figure.
Flights arriving at BOS that month were on time 70.0% of the time (12,390 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 39%, late-arriving aircraft 37% and national aviation system 21%.
- On time 71.5%
- Arrived 15+ minutes late 26.8%
- Cancelled 1.4%
- Diverted 0.4%
August 2023 against a year earlier, the airport's year and the nation
| Measure | Aug 2023 | Year earlier | BOS, 12 months to Jul 2026 | All reported flights, Aug 2023 |
|---|---|---|---|---|
| Departed on time | 72.8% | — | 74.4% | 76.7% |
| Arrived on time | 71.5% | — | 73.3% | 76.9% |
| Cancelled | 1.4% | — | 2.8% | 1.5% |
| Average departure delay (late minutes only) | 21.1 min | — | 18.3 min | 17.3 min |
| Scheduled departures a day | 413 | — | 393 | 20,100 |
| Scheduled departures | 12,389 | — | 143,447 | 602,987 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| B6 JetBlue Airways | 3,614 | 29% | 61.4% | 23.5 min | 2.1% |
| DL Delta Air Lines | 2,335 | 19% | 75.7% | 8.1 min | 1.1% |
| YX Republic Airline | 2,089 | 17% | 82.8% | -1.8 min | 1.3% |
| AA American Airlines | 1,479 | 12% | 74.4% | 13.0 min | 1.1% |
| UA United Airlines | 1,106 | 9% | 77.8% | 5.4 min | 0.7% |
| WN Southwest Airlines | 605 | 5% | 68.8% | 14.0 min | 1.0% |
| NK Spirit Airlines | 463 | 4% | 55.1% | 33.4 min | 1.9% |
| AS Alaska Airlines | 257 | 2% | 69.3% | 8.3 min | 0.4% |
| MQ Envoy Air | 180 | 1% | 74.4% | 9.8 min | 0.0% |
| OO SkyWest Airlines | 152 | 1% | 75.0% | 20.8 min | 2.0% |
| G4 Allegiant Air | 46 | 0% | 91.3% | 0.8 min | 0.0% |
| F9 Frontier Airlines | 41 | 0% | 73.2% | 8.9 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| BOS–DCA | Boston to Washington | 761 | 74.8% | 6.9 min | 1.8% |
| BOS–LGA | Boston to New York | 611 | 80.2% | 0.9 min | 1.6% |
| BOS–ORD | Boston to Chicago | 585 | 74.0% | 15.8 min | 1.2% |
| BOS–JFK | Boston to New York | 486 | 68.3% | 16.1 min | 2.1% |
| BOS–ATL | Boston to Atlanta | 446 | 70.9% | 18.1 min | 1.6% |
| BOS–SFO | Boston to San Francisco | 443 | 72.9% | 8.7 min | 0.7% |
| BOS–CLT | Boston to Charlotte | 436 | 72.2% | 10.9 min | 1.4% |
| BOS–LAX | Boston to Los Angeles | 432 | 60.0% | 27.8 min | 0.9% |
| BOS–MCO | Boston to Orlando | 415 | 59.8% | 29.1 min | 1.2% |
| BOS–PHL | Boston to Philadelphia | 399 | 76.7% | 10.8 min | 1.3% |
| BOS–BWI | Boston to Baltimore | 388 | 71.6% | 10.4 min | 1.8% |
| BOS–DEN | Boston to Denver | 358 | 72.1% | 8.1 min | 0.0% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left BOS on time in August 2023?
72.8% of 12,389 scheduled domestic departures left less than 15 minutes late, and 71.5% reached their destination on time. The national figures that month were 76.7% and 76.9%.
How does that compare with a year earlier?
August 2022 is outside the 36 months on file, or the airport had too few reported flights that month.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 2023; 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.