OnTimeStats

Historical on-time performance

Chicago to Oklahoma City

691 miData through May 2026Source: US DOT · BTS

Flights on MDW–OKC arrive on time 74% of the time over the last 12 months.

On-time rate74%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled1.5%of scheduled flights

based on 473 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time74%
    Medianon time
    p9050 min
    Cancel1.5%
    Flights473

Why flights run late

Delay causes

  • Airline28%
  • Weather2%
  • Air traffic (NAS)8%
  • Late aircraft62%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline43%
  • Weather57%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 7 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 MDW → OKC

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 58% to 87% on time.

  • Mornings87% on time · p90 15 min · 548 flights
  • Middays83% on time · p90 20 min · 242 flights
  • Evenings79% on time · p90 40 min · 110 flights · limited
  • Overnights58% on time · p90 65 min · 660 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 70% to 80% on time.

  • Wednesdays80% on time · p90 40 min · 200 flights
  • Saturdays78% on time · p90 50 min · 196 flights · limited
  • Mondays74% on time · p90 50 min · 249 flights
  • Tuesdays74% on time · p90 40 min · 201 flights
  • Thursdays73% on time · p90 40 min · 250 flights
  • Fridays71% on time · p90 50 min · 253 flights
  • Sundays70% on time · p90 50 min · 239 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.