OnTimeStats

Historical on-time performance

LAXBWI

Los Angeles to Baltimore

2,329 miData through Dec 2025Source: US DOT · BTS

Flights on LAX–BWI arrive on time 88% of the time over the last 12 months.

On-time rate88%arrived within 15 min
Median delayon timetypical arrival
p90 delay15 min1 in 10 flights is worsetail risk
Cancelled0.2%of scheduled flights

based on 1,639 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • United Airlinesbest
    On-time92%
    Medianon time
    p905 min
    Cancel0.2%
    Flights581
  • Southwest Airlines
    On-time87%
    Medianon time
    p9020 min
    Cancel0.2%
    Flights906
  • Spirit Airlines
    On-time75%
    Medianon time
    p9030 min
    Cancel0.7%
    Flights152

Why flights run late

Delay causes

  • Airline47%
  • Weather0%
  • Air traffic (NAS)28%
  • Late aircraft25%
  • Security0%

Most delay minutes here are attributed to Airline.

Over time

On-time trend

By season

On-time rate by month

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Keep exploring

Related pages

Delay predictorfor this route→LAX airportLos Angeles→BWI airportBaltimore→Alaska Airlines on this routecarrier detail→Alaska Airlinesairline profile→

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.