OnTimeStats

Historical on-time performance

Tampa to Boston

1,185 miData through May 2026Source: US DOT · BTS

Flights on TPA–BOS arrive on time 72% of the time over the last 12 months.

On-time rate72%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled2.5%of scheduled flights

based on 2,770 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

  • Delta Air Lines
    On-time74%
    Medianon time
    p9065 min
    Cancel2.1%
    Flights1,168
  • JetBlue Airways
    On-time71%
    Medianon time
    p9070 min
    Cancel2.8%
    Flights1,571
  • Frontier Airlines
    On-time32%
    Median30 min
    p90190 min
    Cancel3.2%
    Flights31

Why flights run late

Delay causes

  • Airline25%
  • Weather1%
  • Air traffic (NAS)28%
  • Late aircraft46%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline31%
  • Weather51%
  • Air traffic (NAS)17%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 70 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 TPA → BOS

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 — 90% on time.

  • Mornings90% on time · p90 10 min · 2,343 flights
  • Middays75% on time · p90 50 min · 2,473 flights
  • Afternoons61% on time · p90 95 min · 1,081 flights
  • Evenings61% on time · p90 95 min · 1,319 flights
  • Overnights61% on time · p90 100 min · 1,114 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 68% to 78% on time.

  • Wednesdays78% on time · p90 50 min · 1,119 flights
  • Tuesdays77% on time · p90 45 min · 1,093 flights
  • Saturdays76% on time · p90 50 min · 1,117 flights
  • Fridays73% on time · p90 65 min · 1,245 flights
  • Thursdays72% on time · p90 65 min · 1,251 flights
  • Mondays70% on time · p90 75 min · 1,247 flights
  • Sundays68% on time · p90 80 min · 1,258 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.