Phoenix Sky Harbor International in January 2025

84.9%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 2025, reporting carriers scheduled 15,956 domestic departures from Phoenix Sky Harbor International (PHX). 84.9% left less than 15 minutes late and 86.8% reached their destination on time; 0.9% were cancelled.

Nationally that month, 79.3% of flights departed on time and 78.6% arrived on time, so PHX departures were 5.6 points above the national departure figure.

A year earlier, in January 2024, the airport had 15,378 departures with 77.9% leaving on time: a change of +7.0 points, with flights up 4%.

Flights arriving at PHX that month were on time 84.8% of the time (15,949 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 42%, late-arriving aircraft 37% and national aviation system 14%.

On time 86.8%
Arrived 15+ minutes late 12.1%
Cancelled 0.9%
Diverted 0.2%

Every scheduled departure from PHX in January 2025, judged by arrival at the destination.

January 2025 against a year earlier, the airport's year and the nation

Measure	Jan 2025	Jan 2024	PHX, 12 months to Jul 2026	All reported flights, Jan 2025
Departed on time	84.9%	77.9%	76.1%	79.3%
Arrived on time	86.8%	77.5%	77.4%	78.6%
Cancelled	0.9%	2.0%	0.9%	3.0%
Average departure delay (late minutes only)	9.2 min	14.6 min	15.8 min	14.0 min
Scheduled departures a day	532	513	542	17,992
Scheduled departures	15,956	15,378	197,642	539,747

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	5,391	34%	85.0%	-1.8 min	1.4%
AA American Airlines	4,199	26%	87.5%	-6.3 min	1.0%
OO SkyWest Airlines	2,409	15%	88.5%	-2.9 min	0.4%
UA United Airlines	952	6%	89.3%	-5.3 min	0.6%
DL Delta Air Lines	829	5%	85.9%	-0.2 min	1.1%
MQ Envoy Air	796	5%	90.3%	-4.7 min	0.3%
F9 Frontier Airlines	654	4%	84.1%	-0.2 min	0.6%
AS Alaska Airlines	463	3%	86.6%	-0.3 min	0.2%
B6 JetBlue Airways	161	1%	87.0%	-5.2 min	0.0%
NK Spirit Airlines	41	0%	78.0%	15.7 min	0.0%
HA Hawaiian Airlines	31	0%	96.8%	-24.5 min	0.0%
G4 Allegiant Air	30	0%	76.7%	4.5 min	6.7%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
PHX–DEN	Phoenix to Denver	806	82.8%	1.7 min	0.2%
PHX–LAX	Phoenix to Los Angeles	615	88.1%	-2.9 min	0.2%
PHX–SEA	Phoenix to Seattle	599	86.6%	-3.9 min	0.0%
PHX–LAS	Phoenix to Las Vegas	556	84.0%	1.7 min	0.4%
PHX–SLC	Phoenix to Salt Lake City	489	87.7%	-1.4 min	0.0%
PHX–ORD	Phoenix to Chicago	447	88.4%	-6.1 min	0.0%
PHX–SAN	Phoenix to San Diego	441	86.4%	0.1 min	0.5%
PHX–DFW	Phoenix to Dallas/Fort Worth	392	81.4%	-0.2 min	4.8%
PHX–SFO	Phoenix to San Francisco	382	89.5%	-5.0 min	0.0%
PHX–SNA	Phoenix to Santa Ana	356	86.8%	0.0 min	0.3%
PHX–PDX	Phoenix to Portland	330	87.6%	0.9 min	0.3%
PHX–SMF	Phoenix to Sacramento	287	88.9%	-5.1 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), January 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jan 2025	Minutes
Air carrier	42.2%	36.2%	48,289
Late-arriving aircraft	36.8%	34.7%	42,077
National Aviation System	14.3%	19.9%	16,412
Extreme weather	6.5%	9.1%	7,386
Security	0.2%	0.2%	276

114,440 delay minutes on 1,927 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 January 2025?

84.9% of 15,956 scheduled domestic departures left less than 15 minutes late, and 86.8% reached their destination on time. The national figures that month were 79.3% and 78.6%.

How does that compare with a year earlier?

In January 2024, 77.9% of 15,378 departures left on time and 2.0% were cancelled, against 84.9% and 0.9% in January 2025.

Provenance

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