OnTimeStats

Historical on-time performance

Boston to Memphis

1,139 miData through Dec 2025Source: US DOT · BTS

Flights on BOS–MEM arrive on time 58% of the time over the last 12 months.

On-time rate58%arrived within 15 min
p90 delay80 min1 in 10 flights is worse (tail risk)
Cancelled3.3%of scheduled flights

based on 151 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Republic Airways
    On-time58%
    Medianon time
    p9080 min
    Cancel3.3%
    Flights151

Why flights run late

Delay causes

  • Airline29%
  • Weather0%
  • Air traffic (NAS)23%
  • Late aircraft48%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly BOS → MEM

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 67% to 86% on time.

  • Mornings86% on time · p90 15 min · 188 flights · limited
  • Afternoons85% on time · p90 30 min · 145 flights · limited
  • Evenings72% on time · p90 65 min · 408 flights
  • Overnights67% on time · p90 65 min · 712 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 67% to 82% on time.

  • Saturdays82% on time · p90 35 min · 166 flights · limited
  • Tuesdays76% on time · p90 35 min · 220 flights
  • Thursdays73% on time · p90 75 min · 214 flights
  • Wednesdays73% on time · p90 45 min · 218 flights
  • Mondays71% on time · p90 70 min · 223 flights
  • Sundays70% on time · p90 50 min · 218 flights
  • Fridays67% on time · p90 65 min · 217 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.