Missoula Montana in October 2023

89.5%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 October 2023, reporting carriers scheduled 276 domestic departures from Missoula Montana (MSO). 89.5% left less than 15 minutes late and 84.1% reached their destination on time; 0.0% were cancelled.

Nationally that month, 83.8% of flights departed on time and 84.0% arrived on time, so MSO departures were 5.7 points above the national departure figure.

Flights arriving at MSO that month were on time 88.4% of the time (276 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 38%, national aviation system 33% and late-arriving aircraft 27%.

On time 84.1%
Arrived 15+ minutes late 15.9%
Cancelled 0.0%
Diverted 0.0%

Every scheduled departure from MSO in October 2023, judged by arrival at the destination.

October 2023 against a year earlier, the airport's year and the nation

Measure	Oct 2023	Year earlier	MSO, 12 months to Jul 2026	All reported flights, Oct 2023
Departed on time	89.5%	—	83.4%	83.8%
Arrived on time	84.1%	—	82.1%	84.0%
Cancelled	0.0%	—	0.7%	0.4%
Average departure delay (late minutes only)	7.9 min	—	14.8 min	11.0 min
Scheduled departures a day	9	—	14	19,966
Scheduled departures	276	—	5,003	598,968

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	119	43%	92.4%	-4.7 min	0.0%
UA United Airlines	62	22%	75.8%	7.6 min	0.0%
DL Delta Air Lines	39	14%	79.5%	0.8 min	0.0%
AA American Airlines	31	11%	77.4%	17.6 min	0.0%
G4 Allegiant Air	25	9%	80.0%	5.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
MSO–DEN	Missoula to Denver	90	80.0%	3.4 min	0.0%
MSO–SLC	Missoula to Salt Lake City	87	93.1%	-4.0 min	0.0%
MSO–MSP	Missoula to Minneapolis	39	79.5%	0.8 min	0.0%
MSO–DFW	Missoula to Dallas/Fort Worth	31	77.4%	17.6 min	0.0%
MSO–AZA	Missoula to Phoenix	16	87.5%	-1.1 min	0.0%
MSO–LAS	Missoula to Las Vegas	9	66.7%	15.7 min	0.0%
MSO–LAX	Missoula to Los Angeles	4	100.0%	-12.2 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), October 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Oct 2023	Minutes
Air carrier	38.4%	41.3%	1,068
Late-arriving aircraft	27.2%	40.5%	757
National Aviation System	33.0%	14.4%	918
Extreme weather	1.4%	3.7%	38
Security	0.0%	0.2%	0

2,781 delay minutes on 44 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 MSO on time in October 2023?

89.5% of 276 scheduled domestic departures left less than 15 minutes late, and 84.1% reached their destination on time. The national figures that month were 83.8% and 84.0%.

How does that compare with a year earlier?

October 2022 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for October 2023; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for MSO · methodology · corrections.