OnTimeStats

Historical on-time performance

Dallas-Fort Worth to St. Louis

551 miData through May 2026Source: US DOT · BTS

Flights on DFW–STL arrive on time 67% of the time over the last 12 months.

On-time rate67%arrived within 15 min
p90 delay75 min1 in 10 flights is worse (tail risk)
Cancelled2.8%of scheduled flights

based on 2,101 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Envoy Airbest
    On-time84%
    Medianon time
    p9020 min
    Cancel1.5%
    Flights267
  • American Airlines
    On-time64%
    Medianon time
    p9085 min
    Cancel3.0%
    Flights1,834

Why flights run late

Delay causes

  • Airline29%
  • Weather8%
  • Air traffic (NAS)8%
  • Late aircraft55%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline12%
  • Weather83%
  • Air traffic (NAS)5%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 59 cancellations with a reported cause (BTS reports causes from June 2003).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly DFW → STL

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 61% to 80% on time.

  • Mornings80% on time · p90 30 min · 1,720 flights
  • Middays78% on time · p90 35 min · 1,441 flights
  • Evenings65% on time · p90 95 min · 1,212 flights
  • Afternoons62% on time · p90 85 min · 1,393 flights
  • Overnights61% on time · p90 90 min · 1,085 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 66% to 74% on time.

  • Tuesdays74% on time · p90 55 min · 938 flights
  • Wednesdays73% on time · p90 55 min · 947 flights
  • Fridays71% on time · p90 55 min · 1,003 flights
  • Saturdays71% on time · p90 55 min · 966 flights
  • Thursdays70% on time · p90 75 min · 992 flights
  • Mondays68% on time · p90 70 min · 1,008 flights
  • Sundays66% on time · p90 85 min · 997 flights

Keep exploring

Related pages

Methodology

A flight is on time when it arrives within 15 minutes of schedule — the US DOT / BTS standard. Median and p90(the “1-in-10 bad day”) are read from the full arrival-delay distribution, never averaged across periods.

Figures cover a carrier’s own BTS-coded flights. Cells below ~200 flights are flagged as limited data. All numbers are pre-computed from public BTS On-Time Performance data.