Missoula Montana in August 2024

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 August 2024, reporting carriers scheduled 503 domestic departures from Missoula Montana (MSO). 77.9% left less than 15 minutes late and 77.7% reached their destination on time; 1.2% were cancelled.

Nationally that month, 75.4% of flights departed on time and 74.7% arrived on time, so MSO departures were 2.5 points above the national departure figure.

A year earlier, in August 2023, the airport had 450 departures with 84.9% leaving on time: a change of −7.0 points, with flights up 12%.

Flights arriving at MSO that month were on time 79.3% of the time (502 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 52%, late-arriving aircraft 30% and national aviation system 14%.

On time 77.7%
Arrived 15+ minutes late 20.9%
Cancelled 1.2%
Diverted 0.2%

Every scheduled departure from MSO in August 2024, judged by arrival at the destination.

August 2024 against a year earlier, the airport's year and the nation

Measure	Aug 2024	Aug 2023	MSO, 12 months to Jul 2026	All reported flights, Aug 2024
Departed on time	77.9%	84.9%	83.4%	75.4%
Arrived on time	77.7%	82.0%	82.1%	74.7%
Cancelled	1.2%	0.4%	0.7%	2.1%
Average departure delay (late minutes only)	14.2 min	13.6 min	14.8 min	18.4 min
Scheduled departures a day	17	15	14	20,634
Scheduled departures	503	450	5,003	619,025

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
UA United Airlines	142	28%	78.2%	5.0 min	4.2%
OO SkyWest Airlines	126	25%	81.7%	7.1 min	0.0%
DL Delta Air Lines	92	18%	85.9%	0.9 min	0.0%
AA American Airlines	36	7%	77.8%	7.0 min	0.0%
AS Alaska Airlines	31	6%	74.2%	13.0 min	0.0%
MQ Envoy Air	31	6%	61.3%	12.4 min	0.0%
G4 Allegiant Air	26	5%	69.2%	8.7 min	0.0%
F9 Frontier Airlines	19	4%	52.6%	16.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
MSO–DEN	Missoula to Denver	139	74.1%	6.5 min	4.3%
MSO–SLC	Missoula to Salt Lake City	92	80.4%	10.7 min	0.0%
MSO–ORD	Missoula to Chicago	62	74.2%	7.5 min	0.0%
MSO–MSP	Missoula to Minneapolis	61	85.2%	1.6 min	0.0%
MSO–DFW	Missoula to Dallas/Fort Worth	36	77.8%	7.0 min	0.0%
MSO–LAX	Missoula to Los Angeles	31	90.3%	-7.2 min	0.0%
MSO–SEA	Missoula to Seattle	31	74.2%	13.0 min	0.0%
MSO–SFO	Missoula to San Francisco	18	77.8%	6.2 min	0.0%
MSO–AZA	Missoula to Phoenix	9	44.4%	29.1 min	0.0%
MSO–LAS	Missoula to Las Vegas	9	88.9%	-3.4 min	0.0%
MSO–OAK	Missoula to Oakland	4	75.0%	-4.2 min	0.0%
MSO–PHX	Missoula to Phoenix	4	75.0%	6.8 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), August 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2024	Minutes
Air carrier	51.6%	33.8%	3,208
Late-arriving aircraft	30.0%	39.8%	1,865
National Aviation System	13.7%	20.4%	851
Extreme weather	4.6%	5.9%	286
Security	0.1%	0.1%	4

6,214 delay minutes on 105 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 August 2024?

77.9% of 503 scheduled domestic departures left less than 15 minutes late, and 77.7% reached their destination on time. The national figures that month were 75.4% and 74.7%.

How does that compare with a year earlier?

In August 2023, 84.9% of 450 departures left on time and 0.4% were cancelled, against 77.9% and 1.2% in August 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 2024; 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.