OnTimeStats

Historical on-time performance

Chicago to Dallas-Fort Worth

797 miData through Dec 2025Source: US DOT · BTS

Flights on MDW–DFW arrive on time 72% of the time over the last 12 months.

On-time rate72%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled1.9%of scheduled flights

based on 157 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Frontier Airlines
    On-time72%
    Medianon time
    p9070 min
    Cancel1.9%
    Flights157

Why flights run late

Delay causes

  • Airline26%
  • Weather9%
  • Air traffic (NAS)35%
  • Late aircraft30%
  • Security0%

Most delay minutes here are attributed to Air traffic (NAS).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly MDW → DFW

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

Mornings are the most reliable time of day to fly this route — 79% on time.

  • Mornings79% on time · p90 35 min · 496 flights
  • Middays65% on time · p90 60 min · 190 flights · limited
  • Evenings62% on time · p90 120 min · 183 flights · limited
  • Afternoons57% on time · p90 100 min · 335 flights
  • Overnights49% on time · p90 125 min · 142 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 62% to 71% on time.

  • Saturdays71% on time · p90 65 min · 185 flights · limited
  • Tuesdays69% on time · p90 35 min · 166 flights · limited
  • Wednesdays68% on time · p90 90 min · 155 flights · limited
  • Fridays65% on time · p90 85 min · 212 flights
  • Sundays65% on time · p90 95 min · 211 flights
  • Thursdays65% on time · p90 85 min · 208 flights
  • Mondays62% on time · p90 100 min · 209 flights
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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.