OnTimeStats

Historical on-time performance

Burbank to Chicago

1,740 miData through Dec 2025Source: US DOT · BTS

Flights on BUR–MDW arrive on time 88% of the time over the last 12 months.

On-time rate88%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights

based on 244 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time88%
    Medianon time
    p9015 min
    Cancel0.4%
    Flights244

Why flights run late

Delay causes

  • Airline28%
  • Weather1%
  • Air traffic (NAS)16%
  • Late aircraft55%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly BUR → MDW

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 — 91% on time.

  • Mornings91% on time · p90 10 min · 326 flights
  • Middays85% on time · p90 20 min · 466 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 83% to 94% on time.

  • Tuesdays94% on time · p90 5 min · 110 flights · limited
  • Saturdays88% on time · p90 15 min · 112 flights · limited
  • Wednesdays88% on time · p90 20 min · 110 flights · limited
  • Thursdays87% on time · p90 15 min · 117 flights · limited
  • Mondays86% on time · p90 15 min · 118 flights · limited
  • Fridays85% on time · p90 25 min · 120 flights · limited
  • Sundays83% on time · p90 20 min · 114 flights · limited
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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.