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DelayAtlas

Airport month record

DFWJUL

Dallas/Fort Worth International in July 2025

Departures
28,959
Month
July 2025
National, same month
71.1%
Carriers
10
D−GRADE

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

DFW in July draws a D−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is a little over an hour behind schedule. Build slack into anything you connect to. That rests on 28,959 flights, of which Delta Air Lines flew 1,054 at 77.7% on time.

Delta Air Lines is the most reliable of the eight carriers covered here at 77.7% on time across 1,054 flights.

Key figures

On time

64.3%

Arrivals under 15 minutes late, of 27,896 completed departures

Avg delay

76 min

Across delayed arrivals only, not all flights

Cancelled

3.10%

Nationally in July: 2.45%

Whole year

72.0%

DFW across all twelve months

These figures cover 28,959 departures from Dallas/Fort Worth 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 DFW's other months

Against DFW's own year, July ran 8 points worse than the twelve-month rate of 72.0%, which makes it number eleven of twelve months, best first.

DFW month by month
MonthFlightsOn timeAvg delayCancelledGrade
July 2025 (this page)28,95964.3%76 min3.10%D−
August 202527,09165.7%80 min2.66%C
September 202525,64177.4%74 min1.87%B
October 202527,18275.0%64 min1.20%B
November 202525,03274.3%76 min3.47%C−
December 202525,77071.7%67 min0.62%C+
January 202624,22975.4%79 min9.85%B−
February 202622,01978.9%63 min1.31%B
March 202626,00873.4%76 min2.51%C
April 202625,68673.9%66 min1.33%C
May 202627,41972.7%74 min3.34%C−
June 202627,81563.6%82 min4.55%D−

Departure window

The best time of day to leave DFW in July

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 35 points, against 22 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

  • 5am–8am2,946 flights85.2%
  • 8am–11am5,781 flights80.6%
  • 11am–2pm4,516 flights67.6%
  • 2pm–5pm5,091 flights57.2%
  • 5pm–8pm5,298 flights49.9%
  • 8pm–5am5,327 flights52.6%

Scale runs 40% to 90%. Rows with fewer than 30 flights show a dash.

The 5pm–8pm window is where this operation falls apart: 49.9% on time, against 85.2% 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 5,781 flights scheduled in it.

Across the week, Friday is the strongest day at 69.2% on time and Monday the weakest at 59.1%. 10 points is a smaller lever than departure hour, but it is free.

On-time rate by day of the week59.1Mon67.5Tue64.2Wed63.3Thu69.2Fri66.0Sat61.1Sun
Monday: 59.1 percent on time. Tuesday: 67.5 percent on time. Wednesday: 64.2 percent on time. Thursday: 63.3 percent on time. Friday: 69.2 percent on time. Saturday: 66.0 percent on time. Sunday: 61.1 percent on time

Carrier by carrier

Which airlines ran best at DFW in July

The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 77.7% of the time; American Airlines manages 55.3%. Sample sizes sit next to every figure, because a two-point gap across 14,621 flights means less than a ten-point one.

Carriers at DFW in July 2025
AirlineFlightsOn timeAvg delayCancelledGrade
American Airlines14,62155.3%78 min3.52%D−
Envoy Air6,50075.8%54 min2.11%B
SkyWest Airlines2,45277.0%74 min3.51%B−
PSA Airlines1,90567.4%87 min3.57%C−
Delta Air Lines1,05477.7%99 min2.66%B
United Airlines80169.4%109 min2.37%C
Frontier Airlines68467.6%72 min4.82%C−
Spirit Airlines66268.9%78 min0.76%C+
Alaska Airlinesthin sample24151.9%57 min2.90%F
JetBlue Airwaysthin sample3137.9%195 min3.23%F−

Frontier Airlines cancels 4.8% 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 DFW in July

Routes from DFW in July 2025
RouteFlightsOn timeAvg delayCancelledGrade
DFW to ORD · Chicago65560.9%96 min4.58%D−
DFW to LGA · New York62965.4%81 min6.68%C−
DFW to ATL · Atlanta59170.2%78 min3.21%C−
DFW to LAX · Los Angeles56460.8%84 min1.24%D
DFW to DEN · Denver54056.2%96 min3.33%D−
DFW to SEA · Seattle50663.0%67 min1.58%D
DFW to IAH · Houston45769.4%95 min4.60%C−
DFW to AUS · Austin45064.8%66 min4.00%D−
DFW to MCO · Orlando44750.8%74 min2.68%F
DFW to LAS · Las Vegas43359.1%75 min3.46%D−
DFW to PHX · Phoenix42060.7%71 min2.38%D
DFW to MIA · Miami41258.0%65 min2.67%D
DFW to SAT · San Antonio39660.8%83 min4.55%D−
DFW to BOS · Boston36958.1%94 min3.25%D−
DFW to SFO · San Francisco36856.5%85 min1.90%D
DFW to CLT · Charlottethin sample34861.0%85 min1.72%D
DFW to SAN · San Diegothin sample33652.6%66 min3.27%F−
DFW to DTW · Detroitthin sample33469.3%86 min1.20%C
DFW to SLC · Salt Lake Citythin sample32956.1%76 min2.74%D
DFW to BNA · Nashvillethin sample31851.0%89 min4.09%F−
DFW to OKC · Oklahoma Citythin sample30666.1%63 min3.27%C−
DFW to TUL · Tulsathin sample30566.2%81 min2.95%C
DFW to XNA · Bentonvillethin sample29478.1%87 min2.72%B
DFW to PHL · Philadelphiathin sample29260.8%79 min8.90%D−
DFW to EWR · Newarkthin sample29260.2%114 min5.48%D−

Delay causes

What held DFW up in July

One category carries most of the weight here. Late-arriving aircraft accounts for 47% of the 756,000 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
    47%
  • Carrier
    32%
  • National Airspace System
    16%
  • Extreme weather
    5%
  • Security
    0%

47% 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 756,000 reported delay minutes here, that single category outweighs weather by 9 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 755,829 reported delay minutes.

Cancellations run at 3.10%, against 2.45% nationally. That is about one flight in 30 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. 14.7% 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 DFW in July

For a July trip through DFW: plan on this being one of the airport's harder months. The 5am–8am departures held up best at 85.2% on time, and with 14.7% 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.