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DelayAtlas

Airport month record

EWRJUL

Newark Liberty International in July 2025

Departures
10,478
Month
July 2025
National, same month
71.1%
Carriers
10
C−GRADE

Historical statistics for July 2025, not live status or a forecast for this year’s July. For today’s conditions at EWR, see live FAA status.

EWR in July carries a cancellation problem, not just a delay problem: 6.8% of scheduled flights never operate, against 2.5% nationally. Of the ones that do fly, about seven flights in ten arrive on time, worth a C− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 10,478 flights, of which Republic Airways flew 1,981 at 72.2% on time.

Republic Airways is the most reliable of the six carriers covered here at 72.2% on time across 1,981 flights.

Key figures

On time

68.2%

Arrivals under 15 minutes late, of 9,723 completed departures

Avg delay

106 min

Across delayed arrivals only, not all flights

Cancelled

6.82%

Nationally in July: 2.45%

Whole year

77.7%

EWR across all twelve months

These figures cover 10,478 departures from Newark Liberty International in July 2025. On time means an arrival less than 15 minutes after the scheduled gate time, the DOT's threshold, and the national comparison uses every US departure in the same month rather than the whole year.

Against the year

July next to EWR's other months

Against EWR's own year, July ran 10 points worse than the twelve-month rate of 77.7%, which makes it the worst of the twelve months in the data. Cancellations are where July stands out: 6.82% of scheduled departures were called off, 2.3 times the airport's rate across the year.

EWR month by month
MonthFlightsOn timeAvg delayCancelledGrade
July 2025 (this page)10,47868.2%106 min6.82%C−
August 202510,41077.9%85 min1.20%B
September 20259,94582.7%81 min1.11%B
October 202510,57871.0%62 min1.01%C
November 202510,40373.9%79 min4.39%C−
December 202510,65270.5%75 min2.63%C
January 20269,97778.8%68 min6.37%B−
February 20269,24481.8%67 min7.88%B−
March 202610,75577.7%76 min2.32%B
April 202610,35885.0%62 min0.69%A+
May 202610,30086.4%72 min0.93%A+
June 20269,96778.6%87 min1.53%B

Departure window

The best time of day to leave EWR in July

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 44 points, against 10 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

  • 5am–8am1,780 flights89.6%
  • 8am–11am1,853 flights85.5%
  • 11am–2pm1,643 flights76.4%
  • 2pm–5pm2,004 flights58.5%
  • 5pm–8pm1,794 flights45.1%
  • 8pm–5am1,404 flights45.7%

Scale runs 35% to 95%. Rows with fewer than 30 flights show a dash.

The 5pm–8pm window is where this operation falls apart: 45.1% on time, against 89.6% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 2pm–5pm window is the busiest, with 2,004 flights scheduled in it.

Across the week, Saturday is the strongest day at 73.5% on time and Monday the weakest at 64.1%. 9 points is a smaller lever than departure hour, but it is free.

On-time rate by day of the week64.1Mon70.3Tue67.5Wed65.6Thu72.3Fri73.5Sat64.6Sun
Monday: 64.1 percent on time. Tuesday: 70.3 percent on time. Wednesday: 67.5 percent on time. Thursday: 65.6 percent on time. Friday: 72.3 percent on time. Saturday: 73.5 percent on time. Sunday: 64.6 percent on time

Carrier by carrier

Which airlines ran best at EWR in July

The choice of carrier is not cosmetic here. Republic Airways arrives on time 72.2% of the time; JetBlue Airways manages 62.5%. Sample sizes sit next to every figure, because a two-point gap across 513 flights means less than a ten-point one.

Carriers at EWR in July 2025
AirlineFlightsOn timeAvg delayCancelledGrade
United Airlines5,58267.7%107 min4.64%C−
Republic Airways1,98172.2%92 min13.38%C−
Spirit Airlines74371.1%104 min6.46%C−
Delta Air Lines59365.0%109 min6.24%C−
American Airlines54169.3%114 min7.39%C−
JetBlue Airways51362.5%122 min8.77%D−
Alaska Airlinesthin sample27962.0%116 min5.38%D−
Frontier Airlinesthin sample9354.4%126 min3.23%F−
Allegiant Airthin sample9172.5%92 min0.00%C+
Envoy Airthin sample6272.9%70 min4.84%C−

Republic Airways cancels 13.4% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.

Route by route

Busiest routes out of EWR in July

Routes from EWR in July 2025
RouteFlightsOn timeAvg delayCancelledGrade
EWR to ATL · Atlanta53964.3%106 min6.31%D−
EWR to ORD · Chicago49863.4%91 min6.43%D−
EWR to LAX · Los Angeles48564.1%131 min4.74%D−
EWR to MCO · Orlando48166.4%121 min5.41%C−
EWR to SFO · San Francisco39765.9%94 min4.53%C−
EWR to DTW · Detroitthin sample35570.8%90 min10.14%C−
EWR to IAH · Houstonthin sample34267.8%104 min5.85%C−
EWR to FLL · Fort Lauderdalethin sample33673.9%111 min6.25%C−
EWR to BOS · Bostonthin sample33159.3%103 min10.27%D−
EWR to CLT · Charlottethin sample32471.0%121 min7.41%C−
EWR to DEN · Denverthin sample30967.4%80 min4.21%C−
EWR to MIA · Miamithin sample30267.0%107 min5.30%C−
EWR to DFW · Dallas-Fort Worththin sample29575.6%124 min5.42%B−
EWR to LAS · Las Vegasthin sample25968.8%130 min2.32%C
EWR to TPA · Tampathin sample24269.0%94 min4.96%C−
EWR to SEA · Seattlethin sample21768.8%100 min3.69%C−
EWR to PHX · Phoenixthin sample21775.2%107 min3.23%B−
EWR to PBI · West Palm Beachthin sample21769.5%117 min5.53%C−
EWR to SJU · San Juanthin sample19965.2%108 min5.53%C−
EWR to MSP · Minneapolisthin sample18463.4%163 min4.89%D−
EWR to IND · Indianapolisthin sample18071.2%131 min13.89%C−
EWR to CLE · Clevelandthin sample17960.2%108 min4.47%D−
EWR to AUS · Austinthin sample17363.7%114 min1.16%D
EWR to BNA · Nashvillethin sample16766.2%87 min7.19%C−
EWR to CMH · Columbusthin sample16064.8%99 min11.25%D−

Delay causes

What held EWR up in July

One category carries most of the weight here. Late-arriving aircraft accounts for 43% of the 327,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

  • Late-arriving aircraft
    43%
  • National Airspace System
    24%
  • Carrier
    22%
  • Extreme weather
    10%
  • Security
    0%

43% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 327,000 reported delay minutes here, that single category outweighs weather by 4 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 327,252 reported delay minutes.

Cancellations run at 6.82%, against 2.45% nationally. That is about one flight in fifteen cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 17.7% of arrivals land a full hour or more behind schedule, against 12.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

What to do with this

Flying from EWR in July

For a July trip through EWR: plan on this being one of the airport's harder months. The 5am–8am departures held up best at 89.6% on time, and with 17.7% of arrivals an hour or more late, a connection here deserves more slack than the same trip in May would.

Related

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.