Phoenix Sky Harbor International in December 2024

80.7%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 December 2024, reporting carriers scheduled 17,342 domestic departures from Phoenix Sky Harbor International (PHX). 80.7% left less than 15 minutes late and 82.0% reached their destination on time; 0.3% were cancelled.

Nationally that month, 77.8% of flights departed on time and 78.1% arrived on time, so PHX departures were 2.9 points above the national departure figure.

A year earlier, in December 2023, the airport had 15,996 departures with 84.4% leaving on time: a change of −3.7 points, with flights up 8%.

Flights arriving at PHX that month were on time 83.4% of the time (17,342 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 40%, air carrier 39% and national aviation system 16%.

On time 82.0%
Arrived 15+ minutes late 17.4%
Cancelled 0.3%
Diverted 0.3%

Every scheduled departure from PHX in December 2024, judged by arrival at the destination.

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

Measure	Dec 2024	Dec 2023	PHX, 12 months to Jul 2026	All reported flights, Dec 2024
Departed on time	80.7%	84.4%	76.1%	77.8%
Arrived on time	82.0%	84.5%	77.4%	78.1%
Cancelled	0.3%	0.2%	0.9%	0.7%
Average departure delay (late minutes only)	12.7 min	9.6 min	15.8 min	16.6 min
Scheduled departures a day	578	533	542	19,686
Scheduled departures	17,342	15,996	197,642	590,581

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	5,916	34%	79.5%	5.1 min	0.3%
AA American Airlines	4,531	26%	83.3%	2.0 min	0.2%
OO SkyWest Airlines	2,544	15%	79.9%	5.4 min	0.5%
UA United Airlines	1,016	6%	87.6%	0.2 min	0.2%
MQ Envoy Air	965	6%	85.8%	0.3 min	0.3%
DL Delta Air Lines	929	5%	86.4%	2.1 min	0.0%
F9 Frontier Airlines	689	4%	84.5%	2.4 min	0.4%
AS Alaska Airlines	479	3%	82.0%	2.6 min	0.8%
B6 JetBlue Airways	168	1%	76.8%	8.0 min	1.2%
NK Spirit Airlines	42	0%	92.9%	0.2 min	0.0%
G4 Allegiant Air	32	0%	71.9%	8.9 min	0.0%
HA Hawaiian Airlines	31	0%	96.8%	-16.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
PHX–DEN	Phoenix to Denver	811	88.0%	-0.8 min	0.2%
PHX–LAX	Phoenix to Los Angeles	658	85.7%	-0.3 min	0.0%
PHX–SEA	Phoenix to Seattle	608	81.6%	1.3 min	0.5%
PHX–LAS	Phoenix to Las Vegas	554	81.6%	5.6 min	0.4%
PHX–SLC	Phoenix to Salt Lake City	542	81.7%	3.7 min	0.0%
PHX–ORD	Phoenix to Chicago	466	85.6%	-1.0 min	0.2%
PHX–SAN	Phoenix to San Diego	455	72.3%	14.2 min	2.2%
PHX–SFO	Phoenix to San Francisco	434	78.3%	5.6 min	0.2%
PHX–DFW	Phoenix to Dallas/Fort Worth	418	83.0%	10.8 min	1.4%
PHX–SNA	Phoenix to Santa Ana	382	80.9%	4.0 min	0.8%
PHX–PDX	Phoenix to Portland	359	78.8%	5.2 min	0.0%
PHX–SMF	Phoenix to Sacramento	320	83.1%	1.5 min	0.0%

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), December 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2024	Minutes
Air carrier	38.8%	34.3%	72,002
Late-arriving aircraft	40.1%	40.2%	74,443
National Aviation System	16.1%	17.8%	29,880
Extreme weather	4.7%	7.5%	8,767
Security	0.2%	0.2%	400

185,492 delay minutes on 3,016 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 PHX on time in December 2024?

80.7% of 17,342 scheduled domestic departures left less than 15 minutes late, and 82.0% reached their destination on time. The national figures that month were 77.8% and 78.1%.

How does that compare with a year earlier?

In December 2023, 84.4% of 15,996 departures left on time and 0.2% were cancelled, against 80.7% and 0.3% in December 2024.

Provenance

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