About 1 in 6 AA 437 flights from Las Vegas arrived 15+ minutes late, diverted or cancelled over the past year (17%); 1.1% were cancelled. The typical flight landed 16 minutes early.
AA 437: LAS → PHL
Scheduled to leave Las Vegas at 10:00 p.m. local time. Over the past year it arrived on time 83% of the time (180 flights), in line with other AA flights on the route at that hour (82%). Last seen in the data Aug 4, 2026.
Usually American Airlines's last flight of the day from Las Vegas to Philadelphia (57% of days). American Airlines's last LAS–PHL flight was cancelled 1.7% of the time, against 1.3% for its earlier ones. If it's cancelled, the next American Airlines flight is usually around 8:46 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 26 | 73% |
| Tuesday | 27 | 93% |
| Wednesday | 26 | 88% |
| Thursday | 26 | 96% |
| Friday | 25 | 64% |
| Saturday | 25 | 84% |
| Sunday | 25 | 80% |
Why it was late
All flights LAS → PHL · Connecting off AA 437? Check the risk
Questions
How often is AA 437 from LAS to PHL late?
American Airlines 437 from Las Vegas, NV to Philadelphia, PA arrived 15 or more minutes late, was diverted or was cancelled on 17% of 180 scheduled flights between September 2025 and August 2026. 1.1% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check American Airlines for today's flight. Method.