STL to BNA flight delays & on-time performance
Nonstop flights from St. Louis Lambert International Airport to Nashville International Airport · 272 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at STL or BNA 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 Nashville (BNA) arrived on time 82% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.6% 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 6am did best (98% on time); around 8pm did worst (64%).
- Wednesday was the most reliable day to fly (85% on time) and Monday the least (75%).
- The largest source of delay minutes was late-arriving aircraft (56%).
Which airline is most on time from STL to BNA?
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 | 82% | 0.6% | 10 min | 4.9% | 1,287 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am98%86 flights
- 7am95%120 flights
- 8am92%108 flights
- 9am86%57 flights
- 10am96%72 flights
- 11am87%125 flights
- 12pm86%65 flights
- 1pm86%71 flights
- 2pm76%138 flights
- 3pm74%39 flights
- 4pm74%42 flights
- 5pm78%111 flights
- 6pm65%136 flights
- 7pm67%45 flights
- 8pm64%47 flights
- 9pm60%15 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday75%1.0% cancelled
- Tuesday85%0.0% cancelled
- Wednesday85%0.0% cancelled
- Thursday84%0.5% cancelled
- Friday83%0.5% cancelled
- Saturday85%1.6% cancelled
- Sunday81%1.1% 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 aircraft56%
- Airline (crew, maintenance, cleaning, fueling)27%
- Air traffic control & airport congestion14%
- Extreme weather3%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather63%
- Airline (crew, maintenance, cleaning, fueling)25%
- Air traffic control & airport congestion13%
- Security0%
STL to BNA: common questions
- How often are STL to BNA flights on time?
- 82% 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 Nashville cancelled?
- 0.6% of scheduled flights were cancelled (8 of 1,287).
- How long are typical delays?
- Across all flights the average arrival delay was 10 min (early arrivals count as zero). Flights that were late arrived 51 min behind schedule on average, and 4.9% 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: BNA to STL — 79% 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 → BNA, nonstop flights by US airlines that report to the DOT. How we calculate this.