OnTimeStats

Historical on-time performance

Salt Lake City to Fort Lauderdale

2,083 miData through Dec 2025Source: US DOT · BTS

Flights on SLC–FLL arrive on time 85% of the time over the last 12 months.

On-time rate85%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights

based on 337 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Delta Air Lines
    On-time85%
    Medianon time
    p9020 min
    Cancel0.3%
    Flights337

Why flights run late

Delay causes

  • Airline26%
  • Weather0%
  • Air traffic (NAS)44%
  • Late aircraft30%
  • Security0%

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

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly SLC → FLL

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 66% to 83% on time.

  • Mornings83% on time · p90 20 min · 144 flights · limited
  • Overnights79% on time · p90 35 min · 1,403 flights
  • Evenings66% on time · p90 85 min · 85 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 73% to 82% on time.

  • Wednesdays82% on time · p90 35 min · 212 flights
  • Tuesdays81% on time · p90 30 min · 214 flights
  • Mondays80% on time · p90 35 min · 244 flights
  • Saturdays78% on time · p90 45 min · 240 flights
  • Sundays78% on time · p90 35 min · 245 flights
  • Thursdays76% on time · p90 30 min · 242 flights
  • Fridays73% on time · p90 40 min · 242 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.