OnTimeStats

Historical on-time performance

Windsor Locks to Baltimore

283 miData through May 2026Source: US DOT · BTS

Flights on BDL–BWI arrive on time 81% of the time over the last 12 months.

On-time rate81%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled1.9%of scheduled flights

based on 1,764 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time81%
    Medianon time
    p9025 min
    Cancel1.9%
    Flights1,764

Why flights run late

Delay causes

  • Airline23%
  • Weather1%
  • Air traffic (NAS)25%
  • Late aircraft51%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline6%
  • Weather79%
  • Air traffic (NAS)15%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 34 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 BDL → BWI

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

Best time of day

Mornings are the most reliable time of day to fly this route — 92% on time.

  • Mornings92% on time · p90 5 min · 1,896 flights
  • Middays85% on time · p90 20 min · 1,439 flights
  • Afternoons74% on time · p90 35 min · 1,099 flights
  • Evenings68% on time · p90 50 min · 690 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 79% to 88% on time.

  • Wednesdays88% on time · p90 15 min · 749 flights
  • Tuesdays86% on time · p90 20 min · 753 flights
  • Saturdays86% on time · p90 20 min · 610 flights
  • Thursdays84% on time · p90 25 min · 772 flights
  • Mondays80% on time · p90 25 min · 774 flights
  • Sundays80% on time · p90 25 min · 704 flights
  • Fridays79% on time · p90 35 min · 779 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.