Phoenix Sky Harbor International in March 2026

76.7%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 March 2026, reporting carriers scheduled 19,277 domestic departures from Phoenix Sky Harbor International (PHX). 76.7% left less than 15 minutes late and 75.8% reached their destination on time; 0.9% were cancelled.

Nationally that month, 72.8% of flights departed on time and 73.2% arrived on time, so PHX departures were 3.9 points above the national departure figure.

A year earlier, in March 2025, the airport had 19,262 departures with 78.9% leaving on time: a change of −2.2 points, with flights up 0%.

Flights arriving at PHX that month were on time 81.4% of the time (19,268 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 41%, late-arriving aircraft 40% and national aviation system 17%.

On time 75.8%
Arrived 15+ minutes late 22.9%
Cancelled 0.9%
Diverted 0.4%

Every scheduled departure from PHX in March 2026, judged by arrival at the destination.

March 2026 against a year earlier, the airport's year and the nation

Measure	Mar 2026	Mar 2025	PHX, 12 months to Jul 2026	All reported flights, Mar 2026
Departed on time	76.7%	78.9%	76.1%	72.8%
Arrived on time	75.8%	79.8%	77.4%	73.2%
Cancelled	0.9%	0.6%	0.9%	2.9%
Average departure delay (late minutes only)	16.5 min	13.6 min	15.8 min	20.3 min
Scheduled departures a day	643	642	542	20,403
Scheduled departures	19,277	19,262	197,642	612,102

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	6,343	33%	71.0%	9.8 min	0.8%
AA American Airlines	5,301	27%	77.3%	7.2 min	0.9%
OO SkyWest Airlines	3,058	16%	78.2%	10.4 min	0.6%
UA United Airlines	991	5%	79.6%	10.3 min	0.7%
DL Delta Air Lines	966	5%	81.8%	5.9 min	2.9%
F9 Frontier Airlines	952	5%	71.6%	16.6 min	1.4%
MQ Envoy Air	876	5%	84.6%	-1.2 min	0.3%
AS Alaska Airlines	606	3%	86.1%	-0.3 min	1.3%
B6 JetBlue Airways	154	1%	50.0%	27.6 min	0.0%
G4 Allegiant Air	30	0%	76.7%	13.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
PHX–DEN	Phoenix to Denver	922	74.1%	12.4 min	0.5%
PHX–SEA	Phoenix to Seattle	685	78.0%	4.5 min	2.0%
PHX–LAX	Phoenix to Los Angeles	680	83.2%	0.5 min	0.6%
PHX–ORD	Phoenix to Chicago	586	70.5%	20.9 min	2.6%
PHX–SLC	Phoenix to Salt Lake City	581	85.0%	2.1 min	0.5%
PHX–LAS	Phoenix to Las Vegas	538	77.5%	7.5 min	0.4%
PHX–SAN	Phoenix to San Diego	505	75.8%	8.2 min	0.2%
PHX–DFW	Phoenix to Dallas/Fort Worth	487	76.8%	6.8 min	1.4%
PHX–SFO	Phoenix to San Francisco	454	83.0%	-1.6 min	0.2%
PHX–SNA	Phoenix to Santa Ana	429	82.1%	-2.0 min	0.7%
PHX–PDX	Phoenix to Portland	411	80.5%	2.9 min	0.7%
PHX–TUS	Phoenix to Tucson	360	81.7%	14.5 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 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2026	Minutes
Air carrier	40.5%	33.5%	116,443
Late-arriving aircraft	40.3%	39.3%	115,776
National Aviation System	17.0%	21.0%	48,955
Extreme weather	2.0%	5.9%	5,660
Security	0.2%	0.2%	684

287,518 delay minutes on 4,414 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 2026?

76.7% of 19,277 scheduled domestic departures left less than 15 minutes late, and 75.8% reached their destination on time. The national figures that month were 72.8% and 73.2%.

How does that compare with a year earlier?

In March 2025, 78.9% of 19,262 departures left on time and 0.6% were cancelled, against 76.7% and 0.9% in March 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for March 2026; 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.