Airlines › Delta Air Lines › March 2025
Carrier month · March 2025
Delta Air Lines 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, Delta Air Lines (DL) reported 84,487 scheduled domestic flights. 81.0% arrived on time, 0.5% were cancelled and 0.3% diverted.
All reporting carriers together recorded 79.3% on time and 1.2% cancelled that month, so the carrier was 1.7 points above the combined figure.
A year earlier, in March 2024, it reported 82,668 flights with 83.4% on time: a change of −2.4 points.
Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 41%, late-arriving aircraft 33% and national aviation system 22%.
- On time 81.0%
- Arrived 15+ minutes late 18.3%
- Cancelled 0.5%
- Diverted 0.3%
March 2025 against a year earlier, the carrier's year and all carriers
| Measure | Mar 2025 | Mar 2024 | DL, 12 months to Jul 2026 | All carriers, Mar 2025 |
|---|---|---|---|---|
| Arrived on time | 81.0% | 83.4% | 79.9% | 79.3% |
| Departed on time | 81.5% | 83.7% | 80.6% | 79.9% |
| Cancelled | 0.5% | 0.1% | 1.7% | 1.2% |
| Average arrival delay | 3.9 min | 2.0 min | 3.9 min | 5.5 min |
| Scheduled flights a day | 2,816 | 2,756 | 2,846 | 20,029 |
| Scheduled flights | 84,487 | 82,668 | 1,038,644 | 600,872 |
142 airports and 872 routes had DL flights that month.
Busiest airports that month
| Airport | Departures | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|
| ATL Atlanta | 19,525 | 77.0% | 8.1 min | 0.6% |
| MSP Minneapolis | 5,438 | 78.7% | 4.2 min | 0.2% |
| SLC Salt Lake City | 4,820 | 84.3% | -0.7 min | 0.1% |
| DTW Detroit | 4,768 | 81.8% | 1.5 min | 0.2% |
| LAX Los Angeles | 2,940 | 82.4% | 2.3 min | 0.2% |
| SEA Seattle | 2,592 | 86.5% | -4.4 min | 0.3% |
| JFK New York | 2,475 | 80.2% | 0.7 min | 0.7% |
| LGA New York | 2,270 | 77.2% | 5.0 min | 1.1% |
| BOS Boston | 2,010 | 81.0% | 2.3 min | 0.6% |
| MCO Orlando | 1,900 | 74.2% | 16.7 min | 0.7% |
| LAS Las Vegas | 1,418 | 82.6% | 2.0 min | 0.4% |
| FLL Fort Lauderdale | 1,199 | 71.6% | 19.3 min | 1.4% |
| TPA Tampa | 1,191 | 69.4% | 17.7 min | 0.8% |
| SFO San Francisco | 1,082 | 83.4% | 2.7 min | 0.2% |
| DFW Dallas/Fort Worth | 1,004 | 78.4% | 9.3 min | 1.0% |
By scheduled departure hour
Delay causes
Questions and answers
What share of Delta Air Lines flights were on time in March 2025?
81.0% of 84,487 scheduled domestic flights arrived less than 15 minutes late; all reporting carriers together recorded 79.3% that month.
How does that compare with a year earlier?
In March 2024 the carrier reported 82,668 flights with 83.4% on time and 0.1% cancelled, against 81.0% and 0.5% in March 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for March 2025; public domain. Domestic scheduled flights, totals and averages only. The site's data runs through July 2026. Full record for Delta Air Lines · methodology · corrections.