Airlines › Southwest Airlines › April 2026
Carrier month · April 2026
Southwest Airlines in April 2026
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 2026, Southwest Airlines (WN) reported 117,814 scheduled domestic flights. 77.3% arrived on time, 0.3% were cancelled and 0.1% diverted.
All reporting carriers together recorded 78.9% on time and 0.9% cancelled that month, so the carrier was 1.6 points below the combined figure.
A year earlier, in April 2025, it reported 117,622 flights with 80.5% on time: a change of −3.2 points.
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 50%, air carrier 30% and national aviation system 18%.
- On time 77.3%
- Arrived 15+ minutes late 22.3%
- Cancelled 0.3%
- Diverted 0.1%
April 2026 against a year earlier, the carrier's year and all carriers
| Measure | Apr 2026 | Apr 2025 | WN, 12 months to Jul 2026 | All carriers, Apr 2026 |
|---|---|---|---|---|
| Arrived on time | 77.3% | 80.5% | 75.5% | 78.9% |
| Departed on time | 73.5% | 78.6% | 71.2% | 79.1% |
| Cancelled | 0.3% | 0.5% | 0.9% | 0.9% |
| Average arrival delay | 4.7 min | 4.4 min | 6.8 min | 4.8 min |
| Scheduled flights a day | 3,927 | 3,921 | 3,808 | 19,931 |
| Scheduled flights | 117,814 | 117,622 | 1,389,951 | 597,919 |
107 airports and 1,686 routes had WN flights that month.
Busiest airports that month
| Airport | Departures | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|
| LAS Las Vegas | 7,367 | 74.3% | 5.6 min | 0.1% |
| DEN Denver | 7,198 | 73.6% | 7.0 min | 0.2% |
| BWI Baltimore | 6,115 | 79.8% | 2.9 min | 0.1% |
| PHX Phoenix | 5,996 | 72.9% | 7.8 min | 0.2% |
| MDW Chicago | 5,925 | 76.2% | 6.4 min | 1.1% |
| DAL Dallas | 5,819 | 70.3% | 10.5 min | 0.6% |
| BNA Nashville | 5,552 | 75.5% | 6.1 min | 0.2% |
| MCO Orlando | 4,475 | 75.9% | 5.1 min | 0.1% |
| HOU Houston | 4,147 | 75.5% | 6.7 min | 0.1% |
| AUS Austin | 3,325 | 73.1% | 8.0 min | 0.2% |
| SAN San Diego | 3,303 | 73.3% | 6.2 min | 0.2% |
| STL St. Louis | 3,162 | 79.5% | 3.8 min | 0.2% |
| SMF Sacramento | 2,646 | 81.0% | 2.6 min | 0.3% |
| OAK Oakland | 2,227 | 74.6% | 7.0 min | 0.3% |
| TPA Tampa | 2,179 | 80.4% | 3.0 min | 0.2% |
By scheduled departure hour
Delay causes
Questions and answers
What share of Southwest Airlines flights were on time in April 2026?
77.3% of 117,814 scheduled domestic flights arrived less than 15 minutes late; all reporting carriers together recorded 78.9% that month.
How does that compare with a year earlier?
In April 2025 the carrier reported 117,622 flights with 80.5% on time and 0.5% cancelled, against 77.3% and 0.3% in April 2026.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2026; public domain. Domestic scheduled flights, totals and averages only. The site's data runs through July 2026. Full record for Southwest Airlines · methodology · corrections.