Tucson International in May 2025

82.8%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 May 2025, reporting carriers scheduled 1,752 domestic departures from Tucson International (TUS). 82.8% left less than 15 minutes late and 81.9% reached their destination on time; 0.6% were cancelled.

Nationally that month, 76.7% of flights departed on time and 75.4% arrived on time, so TUS departures were 6.1 points above the national departure figure.

A year earlier, in May 2024, the airport had 1,639 departures with 76.3% leaving on time: a change of +6.5 points, with flights up 7%.

Flights arriving at TUS that month were on time 81.1% of the time (1,750 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 35%, air carrier 32% and late-arriving aircraft 27%.

On time 81.9%
Arrived 15+ minutes late 17.4%
Cancelled 0.6%
Diverted 0.2%

Every scheduled departure from TUS in May 2025, judged by arrival at the destination.

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

Measure	May 2025	May 2024	TUS, 12 months to Jul 2026	All reported flights, May 2025
Departed on time	82.8%	76.3%	82.2%	76.7%
Arrived on time	81.9%	75.0%	82.6%	75.4%
Cancelled	0.6%	1.6%	1.0%	1.0%
Average departure delay (late minutes only)	12.9 min	18.3 min	14.0 min	17.5 min
Scheduled departures a day	58	55	54	20,188
Scheduled departures	1,752	1,639	19,536	605,648

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	720	41%	84.4%	2.0 min	0.3%
WN Southwest Airlines	420	24%	80.2%	5.7 min	0.0%
AA American Airlines	325	19%	78.2%	9.4 min	1.8%
UA United Airlines	103	6%	76.7%	5.6 min	1.0%
DL Delta Air Lines	74	4%	89.2%	-4.5 min	0.0%
MQ Envoy Air	52	3%	82.7%	7.1 min	1.9%
AS Alaska Airlines	45	3%	84.4%	4.5 min	0.0%
F9 Frontier Airlines	13	1%	76.9%	25.3 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
TUS–PHX	Tucson to Phoenix	308	85.7%	3.5 min	0.6%
TUS–DEN	Tucson to Denver	271	64.2%	23.6 min	0.4%
TUS–LAX	Tucson to Los Angeles	242	89.7%	-5.9 min	0.0%
TUS–DFW	Tucson to Dallas/Fort Worth	182	71.4%	19.5 min	3.3%
TUS–LAS	Tucson to Las Vegas	114	86.8%	0.7 min	0.0%
TUS–ORD	Tucson to Chicago	94	89.4%	-9.3 min	0.0%
TUS–SEA	Tucson to Seattle	93	83.9%	2.5 min	0.0%
TUS–SLC	Tucson to Salt Lake City	93	95.7%	-6.4 min	0.0%
TUS–SFO	Tucson to San Francisco	90	73.3%	9.1 min	0.0%
TUS–ATL	Tucson to Atlanta	62	88.7%	-5.3 min	0.0%
TUS–SAN	Tucson to San Diego	56	80.4%	-0.7 min	0.0%
TUS–IAH	Tucson to Houston	39	87.2%	-3.8 min	2.6%

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), May 2025.

Delay causes

BTS cause category	Share of delay minutes	National, May 2025	Minutes
Air carrier	32.4%	29.3%	7,030
Late-arriving aircraft	27.4%	37.8%	5,937
National Aviation System	35.1%	25.9%	7,601
Extreme weather	5.0%	6.9%	1,092
Security	0.1%	0.1%	16

21,676 delay minutes on 304 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 TUS on time in May 2025?

82.8% of 1,752 scheduled domestic departures left less than 15 minutes late, and 81.9% reached their destination on time. The national figures that month were 76.7% and 75.4%.

How does that compare with a year earlier?

In May 2024, 76.3% of 1,639 departures left on time and 1.6% were cancelled, against 82.8% and 0.6% in May 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for TUS · methodology · corrections.