OnTimeStats

Historical on-time performance

Dallas to Baltimore

1,209 miData through Dec 2025Source: US DOT · BTS

Flights on DAL–BWI arrive on time 75% of the time over the last 12 months.

On-time rate75%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled1.8%of scheduled flights

based on 1,849 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time75%
    Medianon time
    p9045 min
    Cancel1.8%
    Flights1,849

Why flights run late

Delay causes

  • Airline31%
  • Weather8%
  • Air traffic (NAS)16%
  • Late aircraft44%
  • 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 DAL → BWI

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 — 90% on time.

  • Mornings90% on time · p90 10 min · 2,008 flights
  • Middays77% on time · p90 35 min · 881 flights
  • Afternoons68% on time · p90 55 min · 840 flights
  • Evenings63% on time · p90 55 min · 1,102 flights
  • Overnights61% on time · p90 70 min · 605 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 72% to 81% on time.

  • Saturdays81% on time · p90 30 min · 630 flights
  • Tuesdays78% on time · p90 30 min · 781 flights
  • Mondays77% on time · p90 35 min · 836 flights
  • Sundays75% on time · p90 40 min · 775 flights
  • Wednesdays74% on time · p90 40 min · 774 flights
  • Fridays73% on time · p90 40 min · 825 flights
  • Thursdays72% on time · p90 35 min · 815 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.