STL to RSW flight delays & on-time performance
Nonstop flights from St. Louis Lambert International Airport to Southwest Florida International Airport · 979 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at STL or RSW right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from St. Louis (STL) to Fort Myers (RSW) arrived on time 79% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.5% were cancelled, and 5% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 5am did best (93% on time); around 3pm did worst (62%).
- Wednesday was the most reliable day to fly (84% on time) and Sunday the least (71%).
- The largest source of delay minutes was late-arriving aircraft (53%).
Which airline is most on time from STL to RSW?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 79% | 0.5% | 12 min | 5.4% | 1,007 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am93%57 flights
- 6am92%13 flights
- 7am92%91 flights
- 8am91%121 flights
- 9am89%37 flights
- 10am86%142 flights
- 11am80%15 flights
- 12pm83%36 flights
- 2pm72%47 flights
- 3pm62%55 flights
- 4pm56%29 flights
- 5pm75%24 flights
- 6pm80%113 flights
- 7pm67%108 flights
- 8pm65%110 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday81%1.4% cancelled
- Tuesday83%0.0% cancelled
- Wednesday84%0.0% cancelled
- Thursday81%0.0% cancelled
- Friday81%0.0% cancelled
- Saturday76%0.7% cancelled
- Sunday71%1.3% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft53%
- Airline (crew, maintenance, cleaning, fueling)26%
- Air traffic control & airport congestion18%
- Extreme weather3%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather80%
- Air traffic control & airport congestion20%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
STL to RSW: common questions
- How often are STL to RSW flights on time?
- 79% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from St. Louis to Fort Myers cancelled?
- 0.5% of scheduled flights were cancelled (5 of 1,007).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 53 min behind schedule on average, and 5.4% of flights were an hour or more late.
- How long is taxi time at STL?
- Flights on this route spent 11 min taxiing from the gate to takeoff on average.
Related routes
Return trip: RSW to STL — 81% on time
More flights from St. Louis
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: STL → RSW, nonstop flights by US airlines that report to the DOT. How we calculate this.