OnTimeStats

Historical on-time performance

Fort Lauderdale to San Francisco

2,584 miData through May 2026Source: US DOT · BTS

Flights on FLL–SFO arrive on time 79% of the time over the last 12 months.

On-time rate79%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.5%of scheduled flights

based on 1,240 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • United Airlinesbest
    On-time82%
    Medianon time
    p9025 min
    Cancel0.4%
    Flights466
  • JetBlue Airways
    On-time78%
    Medianon time
    p9040 min
    Cancel0.5%
    Flights774

Why flights run late

Delay causes

  • Airline25%
  • Weather1%
  • Air traffic (NAS)41%
  • Late aircraft32%
  • Security1%

Most delay minutes here are attributed to Air traffic (NAS).

When flights don't go

Why flights were cancelled

  • Airline50%
  • Weather50%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 6 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 FLL → SFO

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 — 84% on time.

  • Mornings84% on time · p90 30 min · 2,039 flights
  • Overnights70% on time · p90 55 min · 918 flights
  • Evenings59% on time · p90 85 min · 905 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 67% to 78% on time.

  • Wednesdays78% on time · p90 45 min · 539 flights
  • Tuesdays78% on time · p90 45 min · 532 flights
  • Thursdays76% on time · p90 45 min · 575 flights
  • Saturdays76% on time · p90 55 min · 580 flights
  • Fridays76% on time · p90 55 min · 591 flights
  • Mondays74% on time · p90 55 min · 580 flights
  • Sundays67% on time · p90 60 min · 586 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.