OnTimeStats

Historical on-time performance

Newark to Phoenix

2,133 miData through May 2026Source: US DOT · BTS

Flights on EWR–PHX arrive on time 78% of the time over the last 12 months.

On-time rate78%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled2.1%of scheduled flights

based on 2,483 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.

  • United Airlines
    On-time79%
    Medianon time
    p9040 min
    Cancel1.9%
    Flights1,482
  • American Airlines
    On-time77%
    Medianon time
    p9050 min
    Cancel2.3%
    Flights1,001

Why flights run late

Delay causes

  • Airline27%
  • Weather4%
  • Air traffic (NAS)25%
  • Late aircraft44%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline6%
  • Weather84%
  • Air traffic (NAS)10%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 51 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 EWR → PHX

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 — 86% on time.

  • Mornings86% on time · p90 15 min · 2,463 flights
  • Middays80% on time · p90 40 min · 2,161 flights
  • Evenings76% on time · p90 55 min · 1,432 flights
  • Afternoons72% on time · p90 65 min · 1,145 flights
  • Overnights61% on time · p90 95 min · 609 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 74% to 82% on time.

  • Wednesdays82% on time · p90 40 min · 1,083 flights
  • Tuesdays81% on time · p90 30 min · 1,095 flights
  • Fridays80% on time · p90 40 min · 1,127 flights
  • Mondays79% on time · p90 40 min · 1,125 flights
  • Saturdays78% on time · p90 45 min · 1,083 flights
  • Thursdays77% on time · p90 50 min · 1,145 flights
  • Sundays74% on time · p90 60 min · 1,152 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.