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DelayAtlas

Airport month record

PHXJUL

Phoenix Sky Harbor International in July 2026

Departures
16,096
Month
July 2026
National, same month
71.7%
Carriers
9
C+GRADE

Historical statistics for July 2026, not live status or a forecast for this year’s July. For today’s conditions at PHX, see live FAA status.

PHX in July sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 2 points worse than the national rate of 71.7%. The late ones land a little over an hour behind schedule. That rests on 16,096 flights, of which Delta Air Lines flew 865 at 83.2% on time.

Delta Air Lines is the most reliable of the eight carriers covered here at 83.2% on time across 865 flights.

Key figures

On time

70.0%

Arrivals under 15 minutes late, of 15,868 completed departures

Avg delay

69 min

Across delayed arrivals only, not all flights

Cancelled

0.89%

Nationally in July: 2.62%

Whole year

77.9%

PHX across all twelve months

These figures cover 16,096 departures from Phoenix Sky Harbor International in July 2026. 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 PHX's other months

Against PHX's own year, July ran 8 points worse than the twelve-month rate of 77.9%, which makes it the worst of the twelve months in the data. Either side of it, June ran 72.4% on time and August 75.2%, so a trip moved by a few weeks would have landed in a better stretch.

PHX month by month
MonthFlightsOn timeAvg delayCancelledGrade
September 202513,77283.0%74 min1.09%B
October 202516,62078.8%59 min0.21%B+
November 202516,88778.0%63 min2.21%B
December 202517,68978.4%59 min0.50%B+
January 202616,56481.6%64 min2.34%B
February 202615,65683.4%58 min0.71%B+
March 202619,27776.8%65 min0.92%B+
April 202617,67980.8%57 min0.29%B+
May 202617,33777.0%58 min0.30%B+
June 202615,68572.4%65 min0.43%C+
July 2026 (this page)16,09670.0%69 min0.89%C+
August 202614,75775.2%65 min0.54%B+

Departure window

The best time of day to leave PHX in July

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 35 points, against 17 points between the best and worst carrier.

  • 5am–8am2,025 flights89.3%
  • 8am–11am4,046 flights78.9%
  • 11am–2pm2,333 flights72.8%
  • 2pm–5pm2,864 flights62.0%
  • 5pm–8pm2,320 flights54.8%
  • 8pm–5am2,508 flights60.4%

Scale runs 45% to 95%.

The 5pm–8pm window is where this operation falls apart: 54.8% on time, against 89.3% 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 8am–11am window is the busiest, with 4,046 flights scheduled in it.

Across the week, Wednesday is the strongest day at 73.5% on time and Monday the weakest at 65.0%, a spread of 9 points.

On-time rate by day of the week65.0Mon66.3Tue73.5Wed69.8Thu70.8Fri73.3Sat70.6Sun
Monday: 65.0 percent on time. Tuesday: 66.3 percent on time. Wednesday: 73.5 percent on time. Thursday: 69.8 percent on time. Friday: 70.8 percent on time. Saturday: 73.3 percent on time. Sunday: 70.6 percent on time

Carrier by carrier

Which airlines ran best at PHX in July

The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 83.2% of the time; Southwest Airlines manages 65.8%. Sample sizes sit next to every figure, because a two-point gap across 5,224 flights means less than a ten-point one.

Carriers at PHX in July 2026
AirlineFlightsOn timeAvg delayCancelledGrade
Southwest Airlines5,22465.8%52 min0.40%C+
American Airlines5,07066.9%80 min1.08%C
SkyWest Airlines2,03076.0%84 min0.89%B+
Envoy Air1,13379.0%55 min0.00%B+
Delta Air Lines86583.2%87 min1.97%B
United Airlines73670.2%93 min2.04%C
Frontier Airlines55572.2%83 min1.80%C
Alaska Airlines43475.4%48 min0.23%B+
JetBlue Airwaysthin sample3166.7%35 min22.58%C−

The spread between Delta and Southwest is 17 points, wide enough that it should decide the booking. On a hundred trips that is 17 more arrivals inside the on-time window.

Route by route

Busiest routes out of PHX in July

Routes from PHX in July 2026
RouteFlightsOn timeAvg delayCancelledGrade
PHX to DEN · Denver68266.0%75 min1.03%C
PHX to LAX · Los Angeles61675.9%61 min0.32%B+
PHX to SEA · Seattle57878.5%56 min0.52%B+
PHX to SAN · San Diego54258.1%58 min1.29%D
PHX to LAS · Las Vegas48970.5%86 min1.43%C
PHX to DFW · Dallas-Fort Worth47973.1%68 min1.25%C
PHX to SLC · Salt Lake City44780.8%75 min0.67%B+
PHX to ORD · Chicago43370.7%90 min2.77%C
PHX to SNA · Santa Ana41172.3%68 min0.73%C+
PHX to SFO · San Francisco40443.3%67 min0.50%F+
PHX to TUS · Tucsonthin sample33074.5%75 min0.00%C+
PHX to PDX · Portlandthin sample32967.7%51 min0.30%C+
PHX to ATL · Atlantathin sample28767.3%81 min1.74%C
PHX to BUR · Burbankthin sample27578.0%63 min0.73%B+
PHX to SMF · Sacramentothin sample26575.3%68 min0.75%B+
PHX to JFK · New Yorkthin sample26575.3%84 min8.30%B−
PHX to ABQ · Albuquerquethin sample24967.9%70 min0.00%C+
PHX to IAH · Houstonthin sample24574.0%70 min0.41%C+
PHX to CLT · Charlottethin sample24574.9%74 min0.41%C+
PHX to AUS · Austinthin sample24564.9%66 min0.00%D+
PHX to RNO · Renothin sample24077.4%91 min0.42%B+
PHX to ONT · Ontariothin sample23170.6%66 min0.00%C+
PHX to DAL · Dallasthin sample23073.9%62 min0.00%C+
PHX to SJC · San Josethin sample21970.2%61 min0.46%C+
PHX to PHL · Philadelphiathin sample21666.8%61 min2.78%C

Delay causes

What held PHX up in July

Late-arriving aircraft accounts for 49% of the 327,000 delay minutes carriers reported here, and the remaining four split what is left.

  • Late-arriving aircraft
    49%
  • Carrier
    32%
  • National Airspace System
    16%
  • Extreme weather
    3%
  • Security
    0%

49% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 327,000 reported delay minutes here, that single category outweighs weather by 18 to one. The split is drawn from 327,349 reported delay minutes.

Cancellations are rare at 0.89%, below the national 2.62% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

10.5% of arrivals land a full hour or more behind schedule, against 11.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.

What to do with this

Flying from PHX in July

For a July trip through PHX: plan on this being one of the airport's harder months. The 5am–8am departures held up best at 89.3% on time, and with 10.5% of arrivals an hour or more late, a connection here deserves more slack than the same trip in February would.

Related

Where to go next

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