Los Angeles (LAX) to Pittsburgh (PIT): On-Time Performance
Data through May 2026
Los Angeles (LAX) to Pittsburgh (PIT) effectively runs on two schedules. In April 2026, 94% of arrivals were on time; in July 2025 that fell to 61% — a 33-point seasonal swing. Across the full period the route averages 82% on-time against a national 78%.
- On-time
- 82%
- arrived <15 min late
- Avg delay
- 18 min
- completed flights
- Cancelled
- 1.1%
- Flights/day
- 1.0
- last 12 months
- Duration
- 4h 43m
- scheduled
- Distance
- 2,136 mi
Best airline from LAX to PIT
3 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| United Airlinesmost reliable | 97% | 2 min | 0.0% | 64 |
| American Airlines | 80% | 21 min | 0.3% | 359 |
| Spirit Airlines | 78% | 17 min | 3.9% | 129 |
Monthly on-time trend
Best time to fly from LAX to PIT
Aim for departures around 8 a.m. (95% on-time); avoid 11 a.m. departures (76%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 83% | 16 min |
| Tuesday | 77% | 27 min |
| Wednesdaybest | 90% | 15 min |
| Thursday | 85% | 13 min |
| Friday | 84% | 16 min |
| Saturday | 71% | 33 min |
| Sunday | 78% | 10 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft50%
- Airline operations38%
- National airspace system12%
- Weather1%
Frequently asked questions
- How often are flights from LAX to PIT delayed?
- 19% of LAX–PIT flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 18 minutes.
- Which airline is most reliable from LAX to PIT?
- United Airlines has the best on-time record on this route at 97%, based on 64 flights. 3 airlines flew LAX–PIT frequently enough to compare in this period.
- What is the best time of day to fly from LAX to PIT?
- Departures around 8 a.m. have the best record (95% on-time), while departures around 11 a.m. have the worst (76%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from LAX to PIT?
- The scheduled LAX–PIT flight time averages 4h 43m over 2,136 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are LAX to PIT flights cancelled?
- 1.1% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from LAX to PIT?
- July 2025 was the roughest month in this dataset, with only 61% of arrivals on time. The best was April 2026 at 94%. If your dates are flexible, that 33-point gap is worth planning around.
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Based on 552 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.