Airports › Baltimore (BWI) › January 2025
Airport month · January 2025
Baltimore/Washington International Thurgood Marshall in January 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 January 2025, reporting carriers scheduled 7,094 domestic departures from Baltimore/Washington International Thurgood Marshall (BWI). 76.8% left less than 15 minutes late and 77.0% reached their destination on time; 4.4% were cancelled.
Nationally that month, 79.3% of flights departed on time and 78.6% arrived on time, so BWI departures were 2.5 points below the national departure figure.
A year earlier, in January 2024, the airport had 7,551 departures with 66.1% leaving on time: a change of +10.7 points, with flights down 6%.
Flights arriving at BWI that month were on time 81.8% of the time (7,092 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 31%, late-arriving aircraft 30% and national aviation system 25%.
- On time 77.0%
- Arrived 15+ minutes late 18.5%
- Cancelled 4.4%
- Diverted 0.1%
January 2025 against a year earlier, the airport's year and the nation
| Measure | Jan 2025 | Jan 2024 | BWI, 12 months to Jul 2026 | All reported flights, Jan 2025 |
|---|---|---|---|---|
| Departed on time | 76.8% | 66.1% | 71.7% | 79.3% |
| Arrived on time | 77.0% | 68.0% | 76.4% | 78.6% |
| Cancelled | 4.4% | 3.6% | 1.8% | 3.0% |
| Average departure delay (late minutes only) | 12.2 min | 18.3 min | 16.5 min | 14.0 min |
| Scheduled departures a day | 237 | 252 | 259 | 17,992 |
| Scheduled departures | 7,094 | 7,551 | 94,429 | 539,747 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| WN Southwest Airlines | 5,341 | 75% | 77.0% | 4.6 min | 4.3% |
| NK Spirit Airlines | 465 | 7% | 73.8% | 2.9 min | 6.7% |
| DL Delta Air Lines | 394 | 6% | 79.2% | 6.5 min | 2.8% |
| UA United Airlines | 258 | 4% | 78.3% | -0.5 min | 5.0% |
| AA American Airlines | 243 | 3% | 77.0% | -1.5 min | 7.0% |
| F9 Frontier Airlines | 182 | 3% | 75.3% | 3.2 min | 2.7% |
| YX Republic Airline | 137 | 2% | 85.4% | -5.8 min | 2.2% |
| AS Alaska Airlines | 29 | 0% | 62.1% | 6.0 min | 0.0% |
| MQ Envoy Air | 28 | 0% | 75.0% | -5.5 min | 10.7% |
| OH PSA Airlines | 17 | 0% | 94.1% | -13.1 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| BWI–ATL | Baltimore to Atlanta | 466 | 72.7% | 9.4 min | 6.4% |
| BWI–MCO | Baltimore to Orlando | 417 | 80.3% | 0.7 min | 4.1% |
| BWI–FLL | Baltimore to Fort Lauderdale | 325 | 74.2% | 4.8 min | 4.9% |
| BWI–BOS | Baltimore to Boston | 307 | 83.7% | -3.9 min | 4.2% |
| BWI–CLT | Baltimore to Charlotte | 224 | 78.1% | -0.6 min | 4.5% |
| BWI–TPA | Baltimore to Tampa | 219 | 76.7% | 7.6 min | 3.7% |
| BWI–DEN | Baltimore to Denver | 210 | 78.6% | 0.2 min | 4.8% |
| BWI–MIA | Baltimore to Miami | 185 | 75.7% | 6.9 min | 2.7% |
| BWI–ORD | Baltimore to Chicago | 180 | 77.8% | 1.9 min | 3.9% |
| BWI–DTW | Baltimore to Detroit | 164 | 80.5% | 2.2 min | 1.2% |
| BWI–LAS | Baltimore to Las Vegas | 155 | 76.8% | -3.5 min | 3.2% |
| BWI–MDW | Baltimore to Chicago | 143 | 77.6% | 1.0 min | 4.9% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left BWI on time in January 2025?
76.8% of 7,094 scheduled domestic departures left less than 15 minutes late, and 77.0% reached their destination on time. The national figures that month were 79.3% and 78.6%.
How does that compare with a year earlier?
In January 2024, 66.1% of 7,551 departures left on time and 3.6% were cancelled, against 76.8% and 4.4% in January 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for January 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.