Airlines › Southwest Airlines › April 2025
Carrier month · April 2025
Southwest Airlines in April 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 April 2025, Southwest Airlines (WN) reported 117,622 scheduled domestic flights. 80.5% arrived on time, 0.5% were cancelled and 0.2% diverted.
All reporting carriers together recorded 79.5% on time and 0.8% cancelled that month, so the carrier was 1.0 points above the combined figure.
A year earlier, in April 2024, it reported 120,579 flights with 79.8% on time: a change of +0.7 points.
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 52%, air carrier 26% and national aviation system 20%.
- On time 80.5%
- Arrived 15+ minutes late 18.9%
- Cancelled 0.5%
- Diverted 0.2%
April 2025 against a year earlier, the carrier's year and all carriers
| Measure | Apr 2025 | Apr 2024 | WN, 12 months to Jul 2026 | All carriers, Apr 2025 |
|---|---|---|---|---|
| Arrived on time | 80.5% | 79.8% | 75.5% | 79.5% |
| Departed on time | 78.6% | 77.2% | 71.2% | 80.6% |
| Cancelled | 0.5% | 0.4% | 0.9% | 0.8% |
| Average arrival delay | 4.4 min | 4.7 min | 6.8 min | 5.7 min |
| Scheduled flights a day | 3,921 | 4,019 | 3,808 | 19,465 |
| Scheduled flights | 117,622 | 120,579 | 1,389,951 | 583,950 |
104 airports and 1,682 routes had WN flights that month.
Busiest airports that month
| Airport | Departures | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|
| LAS Las Vegas | 7,544 | 78.8% | 4.4 min | 0.2% |
| DEN Denver | 7,540 | 71.1% | 13.3 min | 0.7% |
| PHX Phoenix | 6,084 | 79.7% | 4.8 min | 0.6% |
| BWI Baltimore | 6,046 | 79.9% | 3.9 min | 0.1% |
| DAL Dallas | 5,907 | 74.2% | 10.1 min | 2.1% |
| MDW Chicago | 5,469 | 81.9% | 3.1 min | 0.5% |
| BNA Nashville | 4,816 | 80.2% | 5.4 min | 0.6% |
| HOU Houston | 4,262 | 79.2% | 6.3 min | 0.5% |
| MCO Orlando | 3,889 | 81.1% | 2.8 min | 0.2% |
| STL St. Louis | 3,504 | 80.3% | 4.4 min | 0.4% |
| AUS Austin | 3,236 | 80.1% | 3.9 min | 0.4% |
| SAN San Diego | 2,924 | 76.7% | 6.6 min | 0.5% |
| SMF Sacramento | 2,755 | 82.3% | 3.2 min | 0.3% |
| OAK Oakland | 2,696 | 84.2% | 1.5 min | 0.3% |
| SJC San Jose | 2,302 | 83.8% | 2.1 min | 0.2% |
By scheduled departure hour
Delay causes
Questions and answers
What share of Southwest Airlines flights were on time in April 2025?
80.5% of 117,622 scheduled domestic flights arrived less than 15 minutes late; all reporting carriers together recorded 79.5% that month.
How does that compare with a year earlier?
In April 2024 the carrier reported 120,579 flights with 79.8% on time and 0.4% cancelled, against 80.5% and 0.5% in April 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 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.