On-Time Report

Airlines › Delta Air Lines › January 2025

Carrier month · January 2025

Delta Air Lines in January 2025

78.3%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 January 2025, Delta Air Lines (DL) reported 76,306 scheduled domestic flights. 78.3% arrived on time, 2.8% were cancelled and 0.2% diverted.

All reporting carriers together recorded 78.6% on time and 3.0% cancelled that month, so the carrier was level with the combined figure.

A year earlier, in January 2024, it reported 74,384 flights with 80.4% on time: a change of −2.1 points.

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 42%, late-arriving aircraft 27% and national aviation system 20%.

Every scheduled domestic flight reported by Delta Air Lines in January 2025.

January 2025 against a year earlier, the carrier's year and all carriers

MeasureJan 2025Jan 2024DL, 12 months to Jul 2026All carriers, Jan 2025
Arrived on time78.3%80.4%79.9%78.6%
Departed on time78.2%81.5%80.6%79.3%
Cancelled2.8%0.6%1.7%3.0%
Average arrival delay5.2 min4.4 min3.9 min3.8 min
Scheduled flights a day2,5442,4802,84617,992
Scheduled flights76,30674,3841,038,644539,747

140 airports and 879 routes had DL flights that month.

Busiest airports that month

AirportDeparturesOn timeAvg arrival delayCancelled
ATL Atlanta17,46873.1%11.6 min4.8%
MSP Minneapolis4,71683.2%-3.0 min0.9%
SLC Salt Lake City4,45584.5%-2.3 min0.9%
DTW Detroit4,30275.8%3.3 min1.4%
LAX Los Angeles2,69782.5%-0.6 min1.0%
JFK New York2,38579.1%0.8 min1.1%
SEA Seattle2,36483.7%-1.3 min0.8%
LGA New York2,26073.8%6.9 min1.5%
BOS Boston1,83277.8%5.2 min1.3%
MCO Orlando1,78274.0%10.1 min1.5%
LAS Las Vegas1,37487.7%-5.5 min0.7%
FLL Fort Lauderdale1,13571.9%13.2 min1.9%
TPA Tampa1,04475.4%9.7 min2.0%
DFW Dallas/Fort Worth99480.7%2.6 min4.2%
MIA Miami98270.3%17.9 min1.6%

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), January 2025.

Delay causes

BTS cause categoryShare of delay minutesAll carriers, Jan 2025Minutes
Air carrier41.8%36.2%473,239
Late-arriving aircraft27.0%34.7%305,736
National Aviation System19.6%19.9%222,491
Extreme weather11.6%9.1%131,009
Security0.0%0.2%296
1,132,771 delay minutes on 14,302 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← December 2024February 2025 →

Questions and answers

What share of Delta Air Lines flights were on time in January 2025?

78.3% of 76,306 scheduled domestic flights arrived less than 15 minutes late; all reporting carriers together recorded 78.6% that month.

How does that compare with a year earlier?

In January 2024 the carrier reported 74,384 flights with 80.4% on time and 0.6% cancelled, against 78.3% and 2.8% in January 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for January 2025; 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.