BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
STL→TPA

St. Louis, MO (STL) to Tampa, FL (TPA) flight delay odds

Historically, 78.8% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 1,225 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
78.8%arrived on time
11.9%30+ min late
0.7%cancelled
1,225scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.6%all scheduled flights
120+ minutes late1.5%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+6.0 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning38292.4%4.7%0.5%
Late morning16782.0%7.8%0.6%
Afternoon28668.5%16.1%0.3%
Evening37171.7%17.8%0.8%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday17378.0%12.1%2.3%
Tuesday16782.6%11.4%0.0%
Wednesday16185.7%5.6%0.0%
Thursday16574.5%14.5%0.0%
Friday17376.9%14.5%0.0%
Saturday20075.0%15.0%1.0%
Sunday18679.6%9.7%1.1%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,19679.2%11.8%0.5%
Frontier Airlines2962.1%17.2%6.9%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 202510065.0%19.0%1.0%
August 20259474.5%16.0%0.0%
September 20259084.4%5.6%0.0%
October 20259576.8%13.7%0.0%
November 20259778.4%14.4%1.0%
December 202510879.6%13.9%0.0%
January 202610283.3%5.9%1.0%
February 20269080.0%13.3%0.0%
March 202612577.6%11.2%3.2%
April 202611083.6%10.0%0.0%
May 202611580.0%7.8%0.9%
June 20269981.8%13.1%0.0%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline25.2%
Late aircraft58.0%
National airspace13.7%
Weather3.1%
Security0.1%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.