OnTimeStats

Historical on-time performance

Fort Lauderdale to Atlanta

581 miData through May 2026Source: US DOT · BTS

Flights on FLL–ATL arrive on time 69% of the time over the last 12 months.

On-time rate69%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled2.3%of scheduled flights

based on 7,163 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Delta Air Linesbest
    On-time76%
    Medianon time
    p9050 min
    Cancel1.6%
    Flights4,252
  • Frontier Airlines
    On-time62%
    Medianon time
    p9085 min
    Cancel2.9%
    Flights889
  • Spirit Airlines
    On-time59%
    Medianon time
    p9085 min
    Cancel3.3%
    Flights1,465
  • JetBlue Airways
    On-time55%
    Median5 min
    p9075 min
    Cancel3.4%
    Flights557

Why flights run late

Delay causes

  • Airline33%
  • Weather3%
  • Air traffic (NAS)22%
  • Late aircraft43%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline56%
  • Weather34%
  • Air traffic (NAS)10%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 163 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 → ATL

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 — 85% on time.

  • Mornings85% on time · p90 20 min · 6,934 flights
  • Middays75% on time · p90 50 min · 4,863 flights
  • Afternoons62% on time · p90 80 min · 3,119 flights
  • Evenings55% on time · p90 90 min · 4,899 flights
  • Overnights55% on time · p90 100 min · 2,505 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 61% to 77% on time.

  • Wednesdays77% on time · p90 45 min · 2,975 flights
  • Tuesdays76% on time · p90 50 min · 3,005 flights
  • Thursdays70% on time · p90 65 min · 3,289 flights
  • Fridays69% on time · p90 60 min · 3,300 flights
  • Saturdays69% on time · p90 65 min · 3,134 flights
  • Mondays68% on time · p90 65 min · 3,277 flights
  • Sundays61% on time · p90 90 min · 3,340 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.