Airports › Las Vegas (LAS) › May 2026
Airport month · May 2026
Harry Reid International in May 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 May 2026, reporting carriers scheduled 14,585 domestic departures from Harry Reid International (LAS). 69.9% left less than 15 minutes late and 73.4% reached their destination on time; 0.7% were cancelled.
Nationally that month, 77.1% of flights departed on time and 77.6% arrived on time, so LAS departures were 7.2 points below the national departure figure.
A year earlier, in May 2025, the airport had 16,720 departures with 76.6% leaving on time: a change of −6.7 points, with flights down 13%.
Flights arriving at LAS that month were on time 75.7% of the time (14,581 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 46%, air carrier 35% and national aviation system 17%.
- On time 73.4%
- Arrived 15+ minutes late 25.7%
- Cancelled 0.7%
- Diverted 0.2%
May 2026 against a year earlier, the airport's year and the nation
| Measure | May 2026 | May 2025 | LAS, 12 months to Jul 2026 | All reported flights, May 2026 |
|---|---|---|---|---|
| Departed on time | 69.9% | 76.6% | 73.8% | 77.1% |
| Arrived on time | 73.4% | 77.8% | 76.8% | 77.6% |
| Cancelled | 0.7% | 0.5% | 0.9% | 0.9% |
| Average departure delay (late minutes only) | 18.8 min | 14.9 min | 16.3 min | 16.0 min |
| Scheduled departures a day | 486 | 557 | 474 | 20,391 |
| Scheduled departures | 14,585 | 16,720 | 172,932 | 611,735 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| WN Southwest Airlines | 7,611 | 52% | 68.5% | 11.0 min | 0.5% |
| DL Delta Air Lines | 1,382 | 9% | 80.4% | 4.7 min | 1.3% |
| AA American Airlines | 1,314 | 9% | 82.9% | 2.3 min | 1.1% |
| UA United Airlines | 1,295 | 9% | 76.5% | 5.9 min | 0.5% |
| F9 Frontier Airlines | 1,159 | 8% | 76.8% | 6.3 min | 0.4% |
| AS Alaska Airlines | 642 | 4% | 76.3% | 3.9 min | 0.8% |
| G4 Allegiant Air | 569 | 4% | 77.0% | 12.7 min | 0.0% |
| B6 JetBlue Airways | 381 | 3% | 82.4% | 4.2 min | 0.3% |
| OO SkyWest Airlines | 215 | 1% | 76.7% | 11.9 min | 0.5% |
| NK Spirit Airlines | 16 | 0% | 43.8% | 14.0 min | 43.8% |
| MQ Envoy Air | 1 | 0% | 100.0% | -18.0 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| LAS–LAX | Las Vegas to Los Angeles | 650 | 74.2% | 12.2 min | 0.6% |
| LAS–DEN | Las Vegas to Denver | 640 | 74.1% | 5.6 min | 0.9% |
| LAS–PHX | Las Vegas to Phoenix | 547 | 78.1% | 8.9 min | 0.2% |
| LAS–SFO | Las Vegas to San Francisco | 534 | 40.1% | 33.7 min | 0.7% |
| LAS–SEA | Las Vegas to Seattle | 496 | 79.8% | 0.6 min | 0.8% |
| LAS–ORD | Las Vegas to Chicago | 483 | 78.5% | 4.4 min | 0.0% |
| LAS–DFW | Las Vegas to Dallas/Fort Worth | 455 | 80.2% | 1.9 min | 3.3% |
| LAS–ATL | Las Vegas to Atlanta | 407 | 81.8% | 6.2 min | 0.2% |
| LAS–SAN | Las Vegas to San Diego | 404 | 57.9% | 22.8 min | 0.7% |
| LAS–SMF | Las Vegas to Sacramento | 332 | 70.2% | 8.3 min | 1.2% |
| LAS–JFK | Las Vegas to New York | 329 | 84.2% | -2.3 min | 1.8% |
| LAS–RNO | Las Vegas to Reno | 316 | 78.2% | 2.2 min | 0.9% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left LAS on time in May 2026?
69.9% of 14,585 scheduled domestic departures left less than 15 minutes late, and 73.4% reached their destination on time. The national figures that month were 77.1% and 77.6%.
How does that compare with a year earlier?
In May 2025, 76.6% of 16,720 departures left on time and 0.5% were cancelled, against 69.9% and 0.7% in May 2026.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 2026; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for LAS · methodology · corrections.