Historical on-time performance
Valparaiso to St. Louis
610 miData through Dec 2025Source: US DOT · BTS
Flights on VPS–STL arrive on time 79% of the time over the last 12 months.
On-time rate79%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 95 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time79%Medianon timep9035 minCancel0.0%Flights95
Why flights run late
Delay causes
- Airline19%
- Weather7%
- Air traffic (NAS)10%
- Late aircraft63%
- 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 VPS → STL
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Middays are the most reliable time of day to fly this route — 93% on time.
- Middays93% on time · p90 5 min · 80 flights · limited
- Afternoons80% on time · p90 40 min · 173 flights · limited
Best day of week
Saturdays are the most reliable day to fly this route — 89% on time.
- Saturdays89% on time · p90 10 min · 132 flights · limited
- Sundays79% on time · p90 35 min · 84 flights · limited
Advertisement
Keep exploring