OnTimeStats

Historical on-time performance

Newark to Atlanta

745 miData through May 2026Source: US DOT · BTS

Flights on EWR–ATL arrive on time 74% of the time over the last 12 months.

On-time rate74%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled3.5%of scheduled flights

based on 6,103 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-time76%
    Medianon time
    p9050 min
    Cancel3.6%
    Flights3,064
  • United Airlines
    On-time75%
    Medianon time
    p9060 min
    Cancel2.5%
    Flights1,906
  • Frontier Airlines
    On-time68%
    Medianon time
    p9060 min
    Cancel3.0%
    Flights709
  • Spirit Airlines
    On-time64%
    Medianon time
    p9085 min
    Cancel8.0%
    Flights424

Why flights run late

Delay causes

  • Airline31%
  • Weather5%
  • Air traffic (NAS)24%
  • Late aircraft40%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline32%
  • Weather63%
  • Air traffic (NAS)5%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 213 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 → 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 — 81% on time.

  • Mornings81% on time · p90 25 min · 5,834 flights
  • Middays79% on time · p90 40 min · 4,495 flights
  • Afternoons72% on time · p90 75 min · 3,279 flights
  • Evenings60% on time · p90 105 min · 2,983 flights
  • Overnights57% on time · p90 105 min · 1,531 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 68% to 79% on time.

  • Wednesdays79% on time · p90 45 min · 2,555 flights
  • Tuesdays77% on time · p90 45 min · 2,570 flights
  • Saturdays74% on time · p90 55 min · 2,177 flights
  • Thursdays74% on time · p90 65 min · 2,721 flights
  • Mondays72% on time · p90 60 min · 2,722 flights
  • Fridays72% on time · p90 70 min · 2,725 flights
  • Sundays68% on time · p90 75 min · 2,652 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.