OnTimeStats

Historical on-time performance

Medford to Phoenix

854 miData through May 2026Source: US DOT · BTS

Flights on MFR–PHX arrive on time 87% of the time over the last 12 months.

On-time rate87%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights

based on 689 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.

  • SkyWest Airlines
    On-time88%
    Medianon time
    p9020 min
    Cancel0.2%
    Flights477
  • Envoy Air
    On-time85%
    Medianon time
    p9015 min
    Cancel1.4%
    Flights212

Why flights run late

Delay causes

  • Airline49%
  • Weather19%
  • Air traffic (NAS)8%
  • Late aircraft24%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather75%
  • Air traffic (NAS)25%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 4 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 MFR → PHX

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 86% to 90% on time.

  • Mornings90% on time · p90 10 min · 1,098 flights
  • Middays88% on time · p90 15 min · 158 flights · limited
  • Afternoons86% on time · p90 30 min · 884 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 85% to 91% on time.

  • Thursdays91% on time · p90 10 min · 323 flights
  • Wednesdays91% on time · p90 10 min · 311 flights
  • Sundays88% on time · p90 20 min · 327 flights
  • Tuesdays88% on time · p90 25 min · 293 flights
  • Saturdays87% on time · p90 20 min · 306 flights
  • Mondays87% on time · p90 20 min · 318 flights
  • Fridays85% on time · p90 20 min · 331 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.