Airlines › Southwest Airlines › December 2023
Carrier month · December 2023
Southwest Airlines in December 2023
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 December 2023, Southwest Airlines (WN) reported 127,773 scheduled domestic flights. 82.1% arrived on time, 0.6% were cancelled and 0.1% diverted.
All reporting carriers together recorded 83.8% on time and 0.4% cancelled that month, so the carrier was 1.7 points below the combined figure.
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 51%, air carrier 32% and national aviation system 16%.
- On time 82.1%
- Arrived 15+ minutes late 17.1%
- Cancelled 0.6%
- Diverted 0.1%
December 2023 against a year earlier, the carrier's year and all carriers
| Measure | Dec 2023 | Year earlier | WN, 12 months to Jul 2026 | All carriers, Dec 2023 |
|---|---|---|---|---|
| Arrived on time | 82.1% | — | 75.5% | 83.8% |
| Departed on time | 78.3% | — | 71.2% | 83.1% |
| Cancelled | 0.6% | — | 0.9% | 0.4% |
| Average arrival delay | 1.9 min | — | 6.8 min | 0.5 min |
| Scheduled flights a day | 4,259 | — | 3,808 | 19,013 |
| Scheduled flights | 127,773 | — | 1,389,951 | 570,394 |
107 airports and 1,568 routes had WN flights that month.
Busiest airports that month
| Airport | Departures | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|
| DEN Denver | 8,937 | 76.9% | 4.1 min | 0.4% |
| LAS Las Vegas | 7,729 | 81.4% | 2.3 min | 0.4% |
| BWI Baltimore | 6,464 | 76.0% | 4.7 min | 0.6% |
| DAL Dallas | 6,306 | 84.2% | 0.1 min | 0.4% |
| MDW Chicago | 6,207 | 80.0% | 2.8 min | 2.9% |
| PHX Phoenix | 5,532 | 82.2% | 2.9 min | 0.5% |
| HOU Houston | 4,719 | 84.1% | 1.4 min | 0.3% |
| BNA Nashville | 4,332 | 81.4% | 3.3 min | 0.5% |
| MCO Orlando | 4,068 | 77.6% | 5.7 min | 0.6% |
| ATL Atlanta | 3,614 | 79.9% | 3.7 min | 0.3% |
| STL St. Louis | 3,463 | 79.6% | 4.0 min | 0.5% |
| AUS Austin | 3,402 | 82.6% | 3.1 min | 0.5% |
| OAK Oakland | 3,366 | 79.7% | 4.2 min | 0.7% |
| SAN San Diego | 3,142 | 84.5% | 1.4 min | 0.4% |
| SJC San Jose | 2,712 | 86.8% | -0.2 min | 0.3% |
By scheduled departure hour
Delay causes
Questions and answers
What share of Southwest Airlines flights were on time in December 2023?
82.1% of 127,773 scheduled domestic flights arrived less than 15 minutes late; all reporting carriers together recorded 83.8% that month.
How does that compare with a year earlier?
December 2022 is outside the 36 months on file, or the carrier did not report that month.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for December 2023; public domain. Domestic scheduled flights, totals and averages only. The site's data runs through July 2026. Full record for Southwest Airlines · methodology · corrections.