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Airport · STL · St. Louis, Missouri

St. Louis, MO

According to PlainFlights' airport traffic ranking (BTS On-Time Performance total flights), St. Louis, MO (STL) ranks #31 of 382 tracked US airports by total flights (most flights = #1). St. Louis, MO posts below-median on-time performance among the 382 tracked U.S. airports, as a high-volume U.S. airport.

Data updated 2026-06-13

81.3%
On-time
Top 75%
on-time, US airports
67 min
Delay when late
1.18%
Cancelled
#31 of 382
Corpus placement
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STL on-time rate vs. the national average

Ahead of the U.S. average across all 382 tracked airports.

0%100%U.S. average79%81.3%

Delay Cause Breakdown

Top delay cause: Late Aircraft. Total delay minutes: 4,041,413.

Late Aircraft 44.1% (1,783,541 min)
Carrier 33.9% (1,368,105 min)
NAS (National Aviation System) 17.9% (722,924 min)
Weather 4.0% (161,927 min)
Security 0.1% (4,916 min)

STL - seasonal on-time pattern

Best: February (92.3%) · worst: July (86.4%)

86%88%90%92%94% JanFebMarAprMayJunJulAugSepOctNovDec 89%

STL - on-time rate by year

2020–2025, year-over-year trend.

85%90%95%100% 202020212022202320242025 96.3% 88.8% ▼ -7.8%

STL - taxi-out and taxi-in (monthly)

Average taxi-out 12.5 min · taxi-in 5.9 min over the last 24 reported months (U.S. airport mean taxi-out ≈ 16.4 min).

11 min12 min13 min14 min15 min Jan 24Dec 25 14.6 min 14.2 min ▼ -2.7%

STL's average taxi-out (12.5 min) stays shorter than the recent U.S. airport mean (~16.4 min). Even the heaviest month (January 2024, 14.6 min) is milder than many hubs' typical book.

Cancellation & Diversion Analysis

Flight disruption statistics for St. Louis, MO.

Cancellation Rate

1.18%

8,116 of 687,272 flights

Diversion Rate

0.10%

719 of 687,272 flights

Delay Rate

18.7%

128,602 of 687,272 flights

Top Routes from STL

Busiest routes to and from St. Louis, MO.

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Route Flights On-Time Distance
STL (St. Louis) → DEN (Denver) 20,999 79.9% 770 mi
DEN (Denver) → STL (St. Louis) 20,926 77.9% 770 mi
STL (St. Louis) → ATL (Atlanta) 19,051 86.9% 484 mi
ATL (Atlanta) → STL (St. Louis) 19,027 84.3% 484 mi
LGA (New York) → STL (St. Louis) 18,657 83.4% 888 mi
STL (St. Louis) → LGA (New York) 18,647 83.5% 888 mi
STL (St. Louis) → ORD (Chicago) 13,549 80.8% 258 mi
STL (St. Louis) → MCO (Orlando) 13,460 79.6% 882 mi
MCO (Orlando) → STL (St. Louis) 13,444 77.8% 882 mi
ORD (Chicago) → STL (St. Louis) 13,359 79.7% 258 mi
DFW (Dallas/Fort Worth) → STL (St. Louis) 13,080 76.9% 550 mi
STL (St. Louis) → DFW (Dallas/Fort Worth) 13,077 79.2% 550 mi
STL (St. Louis) → DCA (Washington) 12,061 80.4% 719 mi
DCA (Washington) → STL (St. Louis) 12,058 80.7% 719 mi
PHX (Phoenix) → STL (St. Louis) 11,922 81.3% 1,262 mi
CLT (Charlotte) → STL (St. Louis) 11,798 80.5% 575 mi
STL (St. Louis) → CLT (Charlotte) 11,793 84.7% 575 mi
STL (St. Louis) → PHX (Phoenix) 11,786 81.9% 1,262 mi
STL (St. Louis) → DAL (Dallas) 11,152 80.5% 546 mi
DAL (Dallas) → STL (St. Louis) 11,129 81% 546 mi

Nationwide peers by on-time rate & flight volume

Two PlainFlights-derived comparison paths for St. Louis, MO, both outside Missouri so the neighborhoods are not same-state geography. Axes stay disjoint: volume peers exclude the on-time peer set. Same-state compare stays below.

Similar on-time rate

Nearest out-of-state BTS on-time rate (this airport: 81.3%).

Philadelphia, PA

Philadelphia, PA

81.3% on-time 1,060,086 flights

Memphis, TN

Memphis, TN

81.3% on-time 251,985 flights

Traverse City, MI

Traverse City, MI

81.3% on-time 50,174 flights

Montrose/Delta, CO

Montrose/Delta, CO

81.3% on-time 32,233 flights

Similar flight volume

Nearest out-of-state total flights (this airport: 687,272).

Portland, OR

Portland, OR

661,488 flights 84.4% on-time

Honolulu, HI

Honolulu, HI

631,778 flights 84.6% on-time

Houston, TX

Houston, TX

618,821 flights 79.4% on-time

Washington, DC

Washington, VA

618,145 flights 84.1% on-time

Other Airports in Missouri

Compare performance with other Missouri airports.

MCI 82%

Kansas City, MO

Kansas City · 524,365 flights
SGF 81.7%

Springfield, MO

Springfield · 92,073 flights
COU 80.3%

Columbia, MO

Columbia · 19,935 flights
JLN 83.1%

Joplin, MO

Joplin · 8,632 flights
CGI 89.7%

Cape Girardeau, MO

Cape Girardeau · 3,473 flights
TBN 90.5%

Fort Leonard Wood, MO

Fort Leonard Wood · 1,262 flights
BKG 77.4%

Branson, MO

Branson · 363 flights

STL delay-share reading

The standout signal at St. Louis, MO is the delay mix: Late Aircraft owns 44.1% of 4,041,413 delay minutes across 687,272 BTS flights. The on-time headline is 81.3% (2.3 pts above the 79% national average), with 128,602 delayed and 8,116 cancelled (1.18%).

Delay minutes concentrate in Late Aircraft (44.1% late-aircraft, 33.9% carrier, 17.9% NAS, 4.0% weather, 0.1% security). As a busy airport, that mix matters more for connection planning than for a thin schedule.

On the multi-year calendar, STL is strongest in February (92.3% on-time) and weakest in July (86.4%), a 5.9-point swing. Volume peaks in July (~10,502 flights/month). The busiest connecting route is to DEN (Denver) at 79.9% on-time. Field definitions: on-time performance explained.

Statewide aggregates for Missouri: Missouri flight data.

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025). Statistics reflect cumulative performance across all available reporting periods. On-time rates exclude cancelled and diverted flights.

Read our methodology - how this data is sourced, computed, and verified.

Using STL's data

STL's on-time book sits in the slower half of the BTS set; check the delay mix and the worst month before treating the headline as typical.

  • Check the busiest route from STL before you book a connection. See top routes
  • Travel in February rather than July if your dates are flexible. Seasonal patterns
  • Gate-to-wheels taxi-out averages 12.5 min here; check the monthly series before a tight connection. Taxi times

On-time rate reflects the BTS historical average across all reporting carriers at this airport, not any single flight or airline.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Source: U.S. Bureau of Transportation Statistics (BTS) Airline on-time performance and operational reliability · 2025

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. Airport figures are computed directly from BTS On-Time Performance data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.