Historical on-time performance
Los Angeles to St. Louis
Flights on LAX–STL arrive on time 77% of the time over the last 12 months.
based on 921 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- Southwest AirlinesOn-time77%Medianon timep9030 minCancel0.4%Flights676
- SkyWest AirlinesOn-time76%Medianon timep9045 minCancel0.8%Flights245
Why flights run late
Delay causes
- Airline38%
- Weather0%
- Air traffic (NAS)10%
- Late aircraft52%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline20%
- Weather60%
- Air traffic (NAS)20%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 5 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly LAX → STL
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 93% on time.
- Mornings93% on time · p90 5 min · 1,003 flights
- Afternoons74% on time · p90 30 min · 242 flights
- Evenings72% on time · p90 55 min · 1,547 flights
- Middays71% on time · p90 40 min · 451 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 81% on time.
- Tuesdays81% on time · p90 30 min · 452 flights
- Wednesdays80% on time · p90 30 min · 452 flights
- Fridays78% on time · p90 40 min · 522 flights
- Saturdays78% on time · p90 30 min · 396 flights
- Mondays77% on time · p90 45 min · 515 flights
- Thursdays77% on time · p90 35 min · 511 flights
- Sundays75% on time · p90 40 min · 459 flights
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