STL to VPS flight delays
St. Louis, MO (STL) Valparaiso, FL (VPS) · 610 miles
138 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
73.91%
Arrived on time
Within 15 minutes of schedule
0%
Cancelled
Share of scheduled flights
42 min
When late, late by
Average across delayed arrivals
12 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The two directions do not behave alike. VPS to STL arrives on time 8.7 points more often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
Only Southwest Airlines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
Flights from St. Louis to Valparaiso run late more often than the average route, though not severely.
Which airline should you fly on this route?
Over January 2025 – August 2026, Southwest Airlines arrived on time most often on STL to VPS. Flights ran closest to schedule in September and worst in June.
Every airline on STL to VPS
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Southwest Airlines | 138 | 73.91% | 0% | 42 min | C |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
VPS to STL Valparaiso back to St. Louis 82.61% on time BOther routes from St. Louis
Common questions
Are flights from St. Louis to Valparaiso usually delayed?
73.91% of flights on the STL to VPS route arrived within 15 minutes of schedule, so roughly 3 in every ten arrived late. That is worse than the average route in this record.
Which airlines fly from St. Louis to Valparaiso?
Only Southwest Airlines appears in the published record on this route, with 138 flights and 73.91% arriving on time.
How often are STL to VPS flights cancelled?
0% of scheduled flights did not operate — about 1 in every thousand. That is in the normal range.
When STL to VPS flights are late, how late are they?
About 42 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on STL to VPS during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →