Flagstaff Pulliam in December 2025

85.5%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 December 2025, reporting carriers scheduled 152 domestic departures from Flagstaff Pulliam (FLG). 85.5% left less than 15 minutes late and 85.5% reached their destination on time; 0.0% were cancelled.

Nationally that month, 72.0% of flights departed on time and 71.9% arrived on time, so FLG departures were 13.5 points above the national departure figure.

A year earlier, in December 2024, the airport had 195 departures with 86.2% leaving on time: a change of −0.7 points, with flights down 22%.

Flights arriving at FLG that month were on time 83.6% of the time (152 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 59%, late-arriving aircraft 24% and extreme weather 15%.

On time 85.5%
Arrived 15+ minutes late 14.5%
Cancelled 0.0%
Diverted 0.0%

Every scheduled departure from FLG in December 2025, judged by arrival at the destination.

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

Measure	Dec 2025	Dec 2024	FLG, 12 months to Jul 2026	All reported flights, Dec 2025
Departed on time	85.5%	86.2%	75.3%	72.0%
Arrived on time	85.5%	83.1%	75.3%	71.9%
Cancelled	0.0%	1.0%	2.8%	1.5%
Average departure delay (late minutes only)	17.4 min	19.1 min	28.3 min	21.2 min
Scheduled departures a day	5	7	5	19,410
Scheduled departures	152	195	1,637	582,304

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	152	100%	85.5%	4.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
FLG–PHX	Flagstaff to Phoenix	121	86.8%	7.9 min	0.0%
FLG–DFW	Flagstaff to Dallas/Fort Worth	31	80.6%	-8.2 min	0.0%

By scheduled departure hour

100

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), December 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2025	Minutes
Air carrier	58.7%	33.3%	1,471
Late-arriving aircraft	24.1%	41.1%	603
National Aviation System	2.0%	19.1%	50
Extreme weather	15.3%	6.4%	383
Security	0.0%	0.2%	0

2,507 delay minutes on 22 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 FLG on time in December 2025?

85.5% of 152 scheduled domestic departures left less than 15 minutes late, and 85.5% reached their destination on time. The national figures that month were 72.0% and 71.9%.

How does that compare with a year earlier?

In December 2024, 86.2% of 195 departures left on time and 1.0% were cancelled, against 85.5% and 0.0% in December 2025.

Provenance

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