Phoenix Sky Harbor International in April 2026

77.9%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 April 2026, reporting carriers scheduled 17,679 domestic departures from Phoenix Sky Harbor International (PHX). 77.9% left less than 15 minutes late and 80.4% reached their destination on time; 0.3% were cancelled.

Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so PHX departures were 1.2 points below the national departure figure.

A year earlier, in April 2025, the airport had 18,188 departures with 81.0% leaving on time: a change of −3.1 points, with flights down 3%.

Flights arriving at PHX that month were on time 81.4% of the time (17,675 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 46%, air carrier 39% and national aviation system 14%.

On time 80.4%
Arrived 15+ minutes late 19.1%
Cancelled 0.3%
Diverted 0.2%

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

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

Measure	Apr 2026	Apr 2025	PHX, 12 months to Jul 2026	All reported flights, Apr 2026
Departed on time	77.9%	81.0%	76.1%	79.1%
Arrived on time	80.4%	81.3%	77.4%	78.9%
Cancelled	0.3%	0.4%	0.9%	0.9%
Average departure delay (late minutes only)	13.5 min	12.3 min	15.8 min	14.5 min
Scheduled departures a day	589	606	542	19,931
Scheduled departures	17,679	18,188	197,642	597,919

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	5,996	34%	72.9%	7.8 min	0.2%
AA American Airlines	4,747	27%	83.5%	-0.2 min	0.3%
OO SkyWest Airlines	2,929	17%	82.9%	4.4 min	0.2%
DL Delta Air Lines	952	5%	89.1%	-4.9 min	0.1%
UA United Airlines	874	5%	80.0%	2.6 min	0.1%
MQ Envoy Air	822	5%	90.6%	-6.0 min	0.0%
F9 Frontier Airlines	664	4%	80.6%	6.3 min	1.8%
AS Alaska Airlines	555	3%	92.1%	-7.0 min	0.2%
B6 JetBlue Airways	115	1%	79.1%	3.1 min	0.0%
G4 Allegiant Air	25	0%	84.0%	0.9 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
PHX–DEN	Phoenix to Denver	826	85.7%	-0.6 min	0.0%
PHX–SEA	Phoenix to Seattle	667	87.4%	-5.7 min	0.1%
PHX–LAX	Phoenix to Los Angeles	640	84.5%	1.9 min	0.0%
PHX–ORD	Phoenix to Chicago	537	72.1%	12.6 min	2.2%
PHX–LAS	Phoenix to Las Vegas	530	78.7%	4.3 min	0.6%
PHX–SLC	Phoenix to Salt Lake City	522	79.1%	3.8 min	0.8%
PHX–SAN	Phoenix to San Diego	519	73.8%	8.0 min	0.6%
PHX–DFW	Phoenix to Dallas/Fort Worth	475	85.3%	-4.0 min	1.5%
PHX–SFO	Phoenix to San Francisco	432	53.7%	24.4 min	0.2%
PHX–SNA	Phoenix to Santa Ana	377	80.9%	5.4 min	0.0%
PHX–ATL	Phoenix to Atlanta	357	86.3%	-3.8 min	0.0%
PHX–TUS	Phoenix to Tucson	352	82.1%	3.1 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), April 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2026	Minutes
Air carrier	38.9%	33.5%	74,147
Late-arriving aircraft	45.6%	40.4%	87,000
National Aviation System	14.0%	21.0%	26,735
Extreme weather	1.4%	5.0%	2,583
Security	0.1%	0.1%	182

190,647 delay minutes on 3,383 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 April 2026?

77.9% of 17,679 scheduled domestic departures left less than 15 minutes late, and 80.4% reached their destination on time. The national figures that month were 79.1% and 78.9%.

How does that compare with a year earlier?

In April 2025, 81.0% of 18,188 departures left on time and 0.4% were cancelled, against 77.9% and 0.3% in April 2026.

Provenance

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