On-Time Report

Airlines › Delta Air Lines › July 2026

Carrier month · July 2026

Delta Air Lines in July 2026

71.9%arrived on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In July 2026, Delta Air Lines (DL) reported 94,140 scheduled domestic flights. 71.9% arrived on time, 2.4% were cancelled and 0.6% diverted.

All reporting carriers together recorded 69.4% on time and 2.6% cancelled that month, so the carrier was 2.5 points above the combined figure.

A year earlier, in July 2025, it reported 94,066 flights with 73.7% on time: a change of −1.8 points.

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 40%, late-arriving aircraft 31% and national aviation system 24%.

Every scheduled domestic flight reported by Delta Air Lines in July 2026.

July 2026 against a year earlier, the carrier's year and all carriers

MeasureJul 2026Jul 2025DL, 12 months to Jul 2026All carriers, Jul 2026
Arrived on time71.9%73.7%79.9%69.4%
Departed on time72.8%74.1%80.6%68.8%
Cancelled2.4%1.4%1.7%2.6%
Average arrival delay12.7 min12.0 min3.9 min15.6 min
Scheduled flights a day3,1383,1362,84621,066
Scheduled flights94,14094,0661,038,644631,970

143 airports and 936 routes had DL flights that month.

Busiest airports that month

AirportDeparturesOn timeAvg arrival delayCancelled
ATL Atlanta21,77466.5%17.7 min2.0%
MSP Minneapolis6,36275.3%7.9 min1.3%
DTW Detroit5,43571.2%12.6 min2.5%
SLC Salt Lake City4,81076.0%9.4 min1.0%
LAX Los Angeles3,49774.8%9.1 min1.5%
SEA Seattle3,03773.1%9.2 min1.3%
JFK New York2,64666.3%12.5 min7.0%
LGA New York2,45262.7%18.3 min8.8%
BOS Boston2,38772.2%9.7 min3.0%
MCO Orlando1,82566.2%21.1 min2.4%
SFO San Francisco1,31860.5%21.2 min1.8%
LAS Las Vegas1,24573.0%11.0 min1.7%
TPA Tampa1,19768.7%16.0 min2.6%
AUS Austin1,19073.9%12.4 min2.0%
ORD Chicago1,15567.8%12.6 min5.7%

By scheduled departure hour

On-time share:under 62%6270768288% and over
Share of DL flights that arrived on time, by scheduled departure hour (local time at each origin), July 2026.

Delay causes

BTS cause categoryShare of delay minutesAll carriers, Jul 2026Minutes
Air carrier40.2%31.7%738,179
Late-arriving aircraft31.3%41.8%574,314
National Aviation System23.6%19.9%433,616
Extreme weather4.8%6.5%87,771
Security0.1%0.1%1,118
1,834,998 delay minutes on 23,649 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← June 2026

Questions and answers

What share of Delta Air Lines flights were on time in July 2026?

71.9% of 94,140 scheduled domestic flights arrived less than 15 minutes late; all reporting carriers together recorded 69.4% that month.

How does that compare with a year earlier?

In July 2025 the carrier reported 94,066 flights with 73.7% on time and 1.4% cancelled, against 71.9% and 2.4% in July 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for July 2026; public domain. Domestic scheduled flights, totals and averages only. The site's data runs through July 2026. Full record for Delta Air Lines · methodology · corrections.