OnTimeStats

Historical on-time performance

San Jose to Baltimore

2,439 miData through Dec 2025Source: US DOT · BTS

Flights on SJC–BWI arrive on time 89% of the time over the last 12 months.

On-time rate89%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights

based on 123 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time89%
    Medianon time
    p9015 min
    Cancel0.8%
    Flights123

Why flights run late

Delay causes

  • Airline16%
  • Weather0%
  • Air traffic (NAS)12%
  • Late aircraft68%
  • Security4%

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 SJC → BWI

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

Best time of day

Overnights are the most reliable time of day to fly this route — 89% on time.

  • Overnights89% on time · p90 15 min · 150 flights · limited
  • Middays65% on time · p90 75 min · 51 flights · limited
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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.