Delta Air Lines in October 2023

90.5%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 October 2023, Delta Air Lines (DL) reported 85,367 scheduled domestic flights. 90.5% arrived on time, 0.1% were cancelled and 0.1% diverted.

All reporting carriers together recorded 84.0% on time and 0.4% cancelled that month, so the carrier was 6.5 points above the combined figure.

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 60%, late-arriving aircraft 24% and national aviation system 14%.

On time 90.5%
Arrived 15+ minutes late 9.3%
Cancelled 0.1%
Diverted 0.1%

Every scheduled domestic flight reported by Delta Air Lines in October 2023.

October 2023 against a year earlier, the carrier's year and all carriers

Measure	Oct 2023	Year earlier	DL, 12 months to Jul 2026	All carriers, Oct 2023
Arrived on time	90.5%	—	79.9%	84.0%
Departed on time	89.9%	—	80.6%	83.8%
Cancelled	0.1%	—	1.7%	0.4%
Average arrival delay	-4.8 min	—	3.9 min	1.2 min
Scheduled flights a day	2,846	—	2,846	19,966
Scheduled flights	85,367	—	1,038,644	598,968

140 airports and 887 routes had DL flights that month.

Busiest airports that month

Airport	Departures	On time	Avg arrival delay	Cancelled
ATL Atlanta	18,978	91.0%	-3.2 min	0.0%
MSP Minneapolis	5,924	87.9%	-4.3 min	0.0%
DTW Detroit	5,069	90.2%	-6.1 min	0.1%
SLC Salt Lake City	4,496	91.0%	-6.3 min	0.0%
LAX Los Angeles	3,219	89.5%	-4.9 min	0.0%
SEA Seattle	2,848	89.0%	-4.8 min	0.1%
JFK New York	2,558	85.8%	-6.5 min	0.0%
BOS Boston	2,331	86.9%	-3.5 min	0.1%
LGA New York	2,300	88.7%	-8.5 min	0.3%
MCO Orlando	1,696	91.6%	-6.4 min	0.1%
LAS Las Vegas	1,409	87.7%	-3.4 min	0.1%
SFO San Francisco	1,124	93.8%	-11.9 min	0.1%
AUS Austin	1,047	91.2%	-6.9 min	0.1%
DEN Denver	1,047	90.1%	-5.8 min	0.2%
TPA Tampa	1,037	91.0%	-3.5 min	0.1%

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), October 2023.

Delay causes

BTS cause category	Share of delay minutes	All carriers, Oct 2023	Minutes
Air carrier	59.6%	41.3%	288,562
Late-arriving aircraft	24.0%	40.5%	116,296
National Aviation System	13.5%	14.4%	65,277
Extreme weather	2.7%	3.7%	13,139
Security	0.2%	0.2%	843

484,117 delay minutes on 7,950 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

What share of Delta Air Lines flights were on time in October 2023?

90.5% of 85,367 scheduled domestic flights arrived less than 15 minutes late; all reporting carriers together recorded 84.0% that month.

How does that compare with a year earlier?

October 2022 is outside the 36 months on file, or the carrier did not report that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for October 2023; 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.