OnTimeStats

Historical on-time performance

Austin to Baltimore

1,342 miData through May 2026Source: US DOT · BTS

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

On-time rate75%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled1.6%of scheduled flights

based on 1,285 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
    p9035 min
    Cancel1.6%
    Flights1,285

Why flights run late

Delay causes

  • Airline29%
  • Weather2%
  • Air traffic (NAS)18%
  • Late aircraft50%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline10%
  • Weather76%
  • Air traffic (NAS)14%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 21 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 AUS → 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 — 94% on time.

  • Mornings94% on time · p90 5 min · 1,279 flights
  • Middays81% on time · p90 30 min · 1,002 flights
  • Overnights75% on time · p90 45 min · 265 flights
  • Evenings65% on time · p90 70 min · 496 flights
  • Afternoons65% on time · p90 45 min · 924 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 74% to 86% on time.

  • Tuesdays86% on time · p90 20 min · 554 flights
  • Saturdays84% on time · p90 25 min · 469 flights
  • Wednesdays82% on time · p90 30 min · 551 flights
  • Sundays77% on time · p90 35 min · 605 flights
  • Fridays76% on time · p90 40 min · 599 flights
  • Mondays75% on time · p90 35 min · 595 flights
  • Thursdays74% on time · p90 35 min · 593 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.