Denver International in January 2024

68.8%departed 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 2024, reporting carriers scheduled 23,361 domestic departures from Denver International (DEN). 68.8% left less than 15 minutes late and 70.7% reached their destination on time; 4.2% were cancelled.

Nationally that month, 74.0% of flights departed on time and 72.9% arrived on time, so DEN departures were 5.2 points below the national departure figure.

Flights arriving at DEN that month were on time 76.1% of the time (23,357 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 40%, air carrier 37% and national aviation system 14%.

On time 70.7%
Arrived 15+ minutes late 24.8%
Cancelled 4.2%
Diverted 0.3%

Every scheduled departure from DEN in January 2024, judged by arrival at the destination.

January 2024 against a year earlier, the airport's year and the nation

Measure	Jan 2024	Year earlier	DEN, 12 months to Jul 2026	All reported flights, Jan 2024
Departed on time	68.8%	—	75.7%	74.0%
Arrived on time	70.7%	—	76.1%	72.9%
Cancelled	4.2%	—	0.7%	3.7%
Average departure delay (late minutes only)	18.7 min	—	16.5 min	18.7 min
Scheduled departures a day	779	—	875	18,242
Scheduled departures	23,361	—	319,208	547,271

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	8,073	35%	65.6%	10.6 min	3.5%
UA United Airlines	7,906	34%	71.7%	9.7 min	6.8%
OO SkyWest Airlines	3,942	17%	75.0%	10.9 min	3.4%
F9 Frontier Airlines	1,467	6%	77.0%	4.7 min	0.7%
DL Delta Air Lines	1,002	4%	82.5%	1.3 min	0.0%
AA American Airlines	688	3%	66.7%	16.2 min	1.5%
AS Alaska Airlines	126	1%	65.1%	7.0 min	12.7%
B6 JetBlue Airways	96	0%	62.5%	20.1 min	0.0%
NK Spirit Airlines	36	0%	52.8%	37.9 min	0.0%
G4 Allegiant Air	25	0%	72.0%	3.3 min	8.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
DEN–PHX	Denver to Phoenix	801	70.9%	5.7 min	3.9%
DEN–LAS	Denver to Las Vegas	696	74.3%	6.1 min	2.9%
DEN–SLC	Denver to Salt Lake City	664	73.5%	4.9 min	1.2%
DEN–LAX	Denver to Los Angeles	591	74.1%	2.2 min	7.4%
DEN–SEA	Denver to Seattle	483	69.2%	5.3 min	4.6%
DEN–ATL	Denver to Atlanta	481	75.9%	5.6 min	2.3%
DEN–ORD	Denver to Chicago	481	66.9%	18.7 min	7.1%
DEN–MSP	Denver to Minneapolis	475	76.8%	8.1 min	2.7%
DEN–DFW	Denver to Dallas/Fort Worth	446	68.2%	17.4 min	1.8%
DEN–IAH	Denver to Houston	418	67.7%	14.1 min	6.0%
DEN–MCO	Denver to Orlando	408	67.6%	9.5 min	5.9%
DEN–SAN	Denver to San Diego	401	73.6%	2.9 min	6.2%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), January 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Jan 2024	Minutes
Air carrier	37.2%	32.6%	134,209
Late-arriving aircraft	40.3%	39.0%	145,532
National Aviation System	14.2%	17.9%	51,281
Extreme weather	7.3%	10.3%	26,431
Security	0.9%	0.2%	3,393

360,846 delay minutes on 5,800 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

How many flights left DEN on time in January 2024?

68.8% of 23,361 scheduled domestic departures left less than 15 minutes late, and 70.7% reached their destination on time. The national figures that month were 74.0% and 72.9%.

How does that compare with a year earlier?

January 2023 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for January 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for DEN · methodology · corrections.