Airports › Baltimore (BWI) › July 2025
Airport month · July 2025
Baltimore/Washington International Thurgood Marshall in July 2025
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 2025, reporting carriers scheduled 8,922 domestic departures from Baltimore/Washington International Thurgood Marshall (BWI). 59.8% left less than 15 minutes late and 63.7% reached their destination on time; 3.6% were cancelled.
Nationally that month, 69.7% of flights departed on time and 69.0% arrived on time, so BWI departures were 9.9 points below the national departure figure.
A year earlier, in July 2024, the airport had 9,069 departures with 55.0% leaving on time: a change of +4.8 points, with flights down 2%.
Flights arriving at BWI that month were on time 66.2% of the time (8,923 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 43%, air carrier 23% and national aviation system 21%.
- On time 63.7%
- Arrived 15+ minutes late 32.4%
- Cancelled 3.6%
- Diverted 0.3%
July 2025 against a year earlier, the airport's year and the nation
| Measure | Jul 2025 | Jul 2024 | BWI, 12 months to Jul 2026 | All reported flights, Jul 2025 |
|---|---|---|---|---|
| Departed on time | 59.8% | 55.0% | 71.7% | 69.7% |
| Arrived on time | 63.7% | 58.2% | 76.4% | 69.0% |
| Cancelled | 3.6% | 1.6% | 1.8% | 2.5% |
| Average departure delay (late minutes only) | 33.4 min | 29.2 min | 16.5 min | 24.3 min |
| Scheduled departures a day | 297 | 302 | 259 | 21,048 |
| Scheduled departures | 8,922 | 9,069 | 94,429 | 631,428 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| WN Southwest Airlines | 6,643 | 74% | 62.7% | 25.5 min | 3.7% |
| NK Spirit Airlines | 529 | 6% | 69.6% | 17.5 min | 3.0% |
| DL Delta Air Lines | 471 | 5% | 74.7% | 17.1 min | 1.5% |
| UA United Airlines | 378 | 4% | 74.3% | 20.4 min | 1.3% |
| AA American Airlines | 318 | 4% | 61.3% | 35.1 min | 5.7% |
| F9 Frontier Airlines | 283 | 3% | 45.9% | 55.1 min | 6.7% |
| YX Republic Airline | 122 | 1% | 74.6% | 11.7 min | 4.1% |
| MQ Envoy Air | 90 | 1% | 60.0% | 23.0 min | 6.7% |
| AS Alaska Airlines | 61 | 1% | 57.4% | 22.7 min | 0.0% |
| OO SkyWest Airlines | 15 | 0% | 6.7% | 213.3 min | 6.7% |
| OH PSA Airlines | 12 | 0% | 41.7% | 44.2 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| BWI–ATL | Baltimore to Atlanta | 506 | 64.2% | 27.0 min | 3.0% |
| BWI–MCO | Baltimore to Orlando | 419 | 61.6% | 24.3 min | 4.5% |
| BWI–BOS | Baltimore to Boston | 365 | 66.8% | 20.1 min | 4.9% |
| BWI–DEN | Baltimore to Denver | 317 | 61.8% | 30.8 min | 2.8% |
| BWI–CLT | Baltimore to Charlotte | 310 | 60.6% | 40.7 min | 5.2% |
| BWI–TPA | Baltimore to Tampa | 260 | 67.7% | 22.0 min | 3.1% |
| BWI–FLL | Baltimore to Fort Lauderdale | 246 | 71.1% | 19.4 min | 2.4% |
| BWI–ORD | Baltimore to Chicago | 243 | 61.7% | 33.9 min | 4.1% |
| BWI–DTW | Baltimore to Detroit | 216 | 70.4% | 21.1 min | 2.8% |
| BWI–MIA | Baltimore to Miami | 189 | 56.6% | 31.1 min | 4.8% |
| BWI–MDW | Baltimore to Chicago | 187 | 59.4% | 29.0 min | 4.3% |
| BWI–LAX | Baltimore to Los Angeles | 176 | 68.8% | 20.0 min | 3.4% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left BWI on time in July 2025?
59.8% of 8,922 scheduled domestic departures left less than 15 minutes late, and 63.7% reached their destination on time. The national figures that month were 69.7% and 69.0%.
How does that compare with a year earlier?
In July 2024, 55.0% of 9,069 departures left on time and 1.6% were cancelled, against 59.8% and 3.6% in July 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for July 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for BWI · methodology · corrections.