Historical on-time performance
Long Beach to St. Louis
1,581 miData through Dec 2025Source: US DOT · BTS
Flights on LGB–STL arrive on time 91% of the time over the last 12 months.
On-time rate91%arrived within 15 min
p90 delay10 min1 in 10 flights is worse (tail risk)
Cancelled0.5%of scheduled flights
based on 214 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time91%Medianon timep9010 minCancel0.5%Flights214
Why flights run late
Delay causes
- Airline24%
- Weather0%
- Air traffic (NAS)14%
- Late aircraft62%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly LGB → STL
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 96% on time.
- Mornings96% on time · p90 5 min · 224 flights
- Middays83% on time · p90 20 min · 764 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 81% to 92% on time.
- Saturdays92% on time · p90 5 min · 131 flights · limited
- Sundays88% on time · p90 15 min · 134 flights · limited
- Wednesdays88% on time · p90 15 min · 148 flights · limited
- Thursdays86% on time · p90 20 min · 147 flights · limited
- Tuesdays84% on time · p90 20 min · 148 flights · limited
- Fridays82% on time · p90 25 min · 147 flights · limited
- Mondays81% on time · p90 25 min · 147 flights · limited
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