Airports › Baltimore (BWI) › March 2025
Airport month · March 2025
Baltimore/Washington International Thurgood Marshall in March 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 March 2025, reporting carriers scheduled 7,927 domestic departures from Baltimore/Washington International Thurgood Marshall (BWI). 76.3% left less than 15 minutes late and 80.0% reached their destination on time; 1.2% were cancelled.
Nationally that month, 79.9% of flights departed on time and 79.3% arrived on time, so BWI departures were 3.6 points below the national departure figure.
A year earlier, in March 2024, the airport had 8,076 departures with 69.6% leaving on time: a change of +6.7 points, with flights down 2%.
Flights arriving at BWI that month were on time 81.9% of the time (7,927 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 41%, air carrier 36% and national aviation system 20%.
- On time 80.0%
- Arrived 15+ minutes late 18.6%
- Cancelled 1.2%
- Diverted 0.2%
March 2025 against a year earlier, the airport's year and the nation
| Measure | Mar 2025 | Mar 2024 | BWI, 12 months to Jul 2026 | All reported flights, Mar 2025 |
|---|---|---|---|---|
| Departed on time | 76.3% | 69.6% | 71.7% | 79.9% |
| Arrived on time | 80.0% | 74.1% | 76.4% | 79.3% |
| Cancelled | 1.2% | 0.7% | 1.8% | 1.2% |
| Average departure delay (late minutes only) | 17.3 min | 18.0 min | 16.5 min | 14.9 min |
| Scheduled departures a day | 264 | 269 | 259 | 20,029 |
| Scheduled departures | 7,927 | 8,076 | 94,429 | 600,872 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| WN Southwest Airlines | 5,989 | 76% | 79.0% | 5.9 min | 1.3% |
| NK Spirit Airlines | 451 | 6% | 80.5% | 1.6 min | 0.7% |
| DL Delta Air Lines | 417 | 5% | 87.1% | -2.6 min | 0.0% |
| AA American Airlines | 302 | 4% | 86.1% | 1.8 min | 2.6% |
| UA United Airlines | 286 | 4% | 89.9% | -11.6 min | 0.3% |
| F9 Frontier Airlines | 246 | 3% | 72.4% | 19.6 min | 1.6% |
| MQ Envoy Air | 117 | 1% | 75.2% | 13.4 min | 0.9% |
| YX Republic Airline | 88 | 1% | 87.5% | -2.9 min | 0.0% |
| AS Alaska Airlines | 31 | 0% | 74.2% | 16.9 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| BWI–ATL | Baltimore to Atlanta | 468 | 82.3% | 2.5 min | 1.1% |
| BWI–MCO | Baltimore to Orlando | 468 | 78.0% | 6.9 min | 2.6% |
| BWI–BOS | Baltimore to Boston | 326 | 80.7% | 4.2 min | 0.3% |
| BWI–FLL | Baltimore to Fort Lauderdale | 308 | 75.0% | 6.4 min | 1.0% |
| BWI–TPA | Baltimore to Tampa | 270 | 78.5% | 4.5 min | 2.6% |
| BWI–CLT | Baltimore to Charlotte | 261 | 86.2% | 5.8 min | 1.1% |
| BWI–DEN | Baltimore to Denver | 241 | 84.6% | -6.5 min | 0.4% |
| BWI–MIA | Baltimore to Miami | 239 | 77.8% | 11.3 min | 1.3% |
| BWI–ORD | Baltimore to Chicago | 226 | 77.4% | 5.4 min | 0.4% |
| BWI–LAS | Baltimore to Las Vegas | 172 | 79.1% | 3.5 min | 0.0% |
| BWI–DTW | Baltimore to Detroit | 171 | 80.1% | 10.4 min | 0.0% |
| BWI–BNA | Baltimore to Nashville | 160 | 81.9% | 0.5 min | 1.3% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left BWI on time in March 2025?
76.3% of 7,927 scheduled domestic departures left less than 15 minutes late, and 80.0% reached their destination on time. The national figures that month were 79.9% and 79.3%.
How does that compare with a year earlier?
In March 2024, 69.6% of 8,076 departures left on time and 0.7% were cancelled, against 76.3% and 1.2% in March 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for March 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.