Airlines › Southwest Airlines › March 2025
Carrier month · March 2025
Southwest Airlines 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, Southwest Airlines (WN) reported 122,432 scheduled domestic flights. 81.5% arrived on time, 0.8% were cancelled and 0.2% diverted.
All reporting carriers together recorded 79.3% on time and 1.2% cancelled that month, so the carrier was 2.2 points above the combined figure.
A year earlier, in March 2024, it reported 125,272 flights with 76.6% on time: a change of +4.9 points.
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 52%, air carrier 27% and national aviation system 19%.
- On time 81.5%
- Arrived 15+ minutes late 17.4%
- Cancelled 0.8%
- Diverted 0.2%
March 2025 against a year earlier, the carrier's year and all carriers
| Measure | Mar 2025 | Mar 2024 | WN, 12 months to Jul 2026 | All carriers, Mar 2025 |
|---|---|---|---|---|
| Arrived on time | 81.5% | 76.6% | 75.5% | 79.3% |
| Departed on time | 79.1% | 74.4% | 71.2% | 79.9% |
| Cancelled | 0.8% | 0.9% | 0.9% | 1.2% |
| Average arrival delay | 3.0 min | 6.8 min | 6.8 min | 5.5 min |
| Scheduled flights a day | 4,081 | 4,176 | 3,808 | 20,029 |
| Scheduled flights | 122,432 | 125,272 | 1,389,951 | 600,872 |
104 airports and 1,678 routes had WN flights that month.
Busiest airports that month
| Airport | Departures | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|
| DEN Denver | 7,722 | 78.6% | 4.7 min | 0.5% |
| LAS Las Vegas | 7,659 | 78.5% | 3.7 min | 0.6% |
| PHX Phoenix | 6,384 | 79.7% | 4.5 min | 0.6% |
| DAL Dallas | 6,079 | 78.1% | 5.7 min | 1.3% |
| BWI Baltimore | 5,989 | 79.0% | 5.9 min | 1.3% |
| MDW Chicago | 5,532 | 80.9% | 2.0 min | 0.9% |
| BNA Nashville | 4,562 | 81.4% | 3.8 min | 0.6% |
| HOU Houston | 4,345 | 81.8% | 3.0 min | 0.7% |
| MCO Orlando | 4,230 | 76.3% | 8.5 min | 1.4% |
| STL St. Louis | 3,547 | 81.3% | 3.1 min | 0.6% |
| AUS Austin | 3,260 | 80.7% | 4.7 min | 1.0% |
| SAN San Diego | 2,982 | 78.6% | 5.3 min | 0.7% |
| SMF Sacramento | 2,768 | 84.2% | 0.9 min | 0.5% |
| OAK Oakland | 2,761 | 87.7% | -3.0 min | 0.6% |
| TPA Tampa | 2,454 | 75.8% | 10.3 min | 1.2% |
By scheduled departure hour
Delay causes
Questions and answers
What share of Southwest Airlines flights were on time in March 2025?
81.5% of 122,432 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 125,272 flights with 76.6% on time and 0.9% cancelled, against 81.5% and 0.8% 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 Southwest Airlines · methodology · corrections.