Phoenix Sky Harbor International in March 2025

78.9%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 March 2025, reporting carriers scheduled 19,262 domestic departures from Phoenix Sky Harbor International (PHX). 78.9% left less than 15 minutes late and 79.8% reached their destination on time; 0.6% were cancelled.

Nationally that month, 79.9% of flights departed on time and 79.3% arrived on time, so PHX departures were 1.0 points below the national departure figure.

A year earlier, in March 2024, the airport had 17,375 departures with 78.3% leaving on time: a change of +0.6 points, with flights up 11%.

Flights arriving at PHX that month were on time 80.9% of the time (19,254 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 42%, air carrier 41% and national aviation system 14%.

On time 79.8%
Arrived 15+ minutes late 19.5%
Cancelled 0.6%
Diverted 0.2%

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

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

Measure	Mar 2025	Mar 2024	PHX, 12 months to Jul 2026	All reported flights, Mar 2025
Departed on time	78.9%	78.3%	76.1%	79.9%
Arrived on time	79.8%	78.4%	77.4%	79.3%
Cancelled	0.6%	0.5%	0.9%	1.2%
Average departure delay (late minutes only)	13.6 min	14.7 min	15.8 min	14.9 min
Scheduled departures a day	642	579	542	20,029
Scheduled departures	19,262	17,375	197,642	600,872

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	6,384	33%	79.7%	4.5 min	0.6%
AA American Airlines	5,087	26%	79.8%	6.0 min	0.6%
OO SkyWest Airlines	3,033	16%	74.4%	11.2 min	0.6%
UA United Airlines	1,121	6%	84.9%	0.1 min	0.0%
MQ Envoy Air	1,021	5%	83.3%	0.8 min	0.6%
DL Delta Air Lines	939	5%	87.3%	0.5 min	0.1%
F9 Frontier Airlines	877	5%	78.3%	5.3 min	0.9%
AS Alaska Airlines	518	3%	83.2%	2.1 min	0.4%
B6 JetBlue Airways	153	1%	77.1%	2.7 min	0.7%
NK Spirit Airlines	55	0%	76.4%	8.8 min	0.0%
G4 Allegiant Air	43	0%	69.8%	33.1 min	0.0%
HA Hawaiian Airlines	31	0%	100.0%	-10.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
PHX–DEN	Phoenix to Denver	972	81.1%	3.4 min	0.3%
PHX–LAX	Phoenix to Los Angeles	684	84.1%	0.7 min	0.0%
PHX–SEA	Phoenix to Seattle	684	79.7%	2.8 min	0.3%
PHX–LAS	Phoenix to Las Vegas	630	76.5%	6.0 min	0.8%
PHX–SLC	Phoenix to Salt Lake City	595	80.5%	6.4 min	0.0%
PHX–DFW	Phoenix to Dallas/Fort Worth	526	76.2%	8.9 min	1.5%
PHX–ORD	Phoenix to Chicago	524	80.9%	5.0 min	0.6%
PHX–SFO	Phoenix to San Francisco	480	75.2%	10.6 min	0.0%
PHX–SAN	Phoenix to San Diego	468	80.8%	3.1 min	1.3%
PHX–SNA	Phoenix to Santa Ana	411	83.5%	1.0 min	0.5%
PHX–PDX	Phoenix to Portland	409	86.8%	-0.9 min	0.0%
PHX–SMF	Phoenix to Sacramento	366	84.7%	3.5 min	0.3%

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), March 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2025	Minutes
Air carrier	41.4%	33.0%	91,772
Late-arriving aircraft	41.9%	39.2%	92,831
National Aviation System	14.4%	21.9%	31,823
Extreme weather	2.2%	5.9%	4,901
Security	0.1%	0.1%	271

221,598 delay minutes on 3,747 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 March 2025?

78.9% of 19,262 scheduled domestic departures left less than 15 minutes late, and 79.8% reached their destination on time. The national figures that month were 79.9% and 79.3%.

How does that compare with a year earlier?

In March 2024, 78.3% of 17,375 departures left on time and 0.5% were cancelled, against 78.9% and 0.6% in March 2025.

Provenance

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