On-Time Report

Airports › Missoula (MSO) › December 2024

Airport month · December 2024

Missoula Montana in December 2024

83.2%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 2024, reporting carriers scheduled 303 domestic departures from Missoula Montana (MSO). 83.2% left less than 15 minutes late and 83.5% reached their destination on time; 1.0% were cancelled.

Nationally that month, 77.8% of flights departed on time and 78.1% arrived on time, so MSO departures were 5.4 points above the national departure figure.

A year earlier, in December 2023, the airport had 253 departures with 78.7% leaving on time: a change of +4.5 points, with flights up 20%.

Flights arriving at MSO that month were on time 82.2% of the time (303 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 31%, late-arriving aircraft 31% and extreme weather 29%.

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

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

MeasureDec 2024Dec 2023MSO, 12 months to Jul 2026All reported flights, Dec 2024
Departed on time83.2%78.7%83.4%77.8%
Arrived on time83.5%76.3%82.1%78.1%
Cancelled1.0%0.8%0.7%0.7%
Average departure delay (late minutes only)18.0 min44.3 min14.8 min16.6 min
Scheduled departures a day1081419,686
Scheduled departures3032535,003590,581

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
OO SkyWest Airlines10334%87.4%1.1 min1.0%
UA United Airlines6220%87.1%22.6 min0.0%
DL Delta Air Lines4916%79.6%15.1 min0.0%
G4 Allegiant Air3512%68.6%17.5 min2.9%
AS Alaska Airlines248%87.5%-2.2 min0.0%
MQ Envoy Air186%88.9%-3.8 min0.0%
AA American Airlines124%75.0%-3.1 min8.3%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
MSO–DENMissoula to Denver9387.1%12.9 min0.0%
MSO–SLCMissoula to Salt Lake City9083.3%11.2 min1.1%
MSO–MSPMissoula to Minneapolis3187.1%1.9 min0.0%
MSO–DFWMissoula to Dallas/Fort Worth3083.3%-3.6 min3.3%
MSO–SEAMissoula to Seattle2487.5%-2.2 min0.0%
MSO–AZAMissoula to Phoenix2065.0%28.7 min5.0%
MSO–LASMissoula to Las Vegas1573.3%3.2 min0.0%

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), December 2024.

Delay causes

BTS cause categoryShare of delay minutesNational, Dec 2024Minutes
Air carrier30.9%34.3%1,636
Late-arriving aircraft30.5%40.2%1,616
National Aviation System10.0%17.8%530
Extreme weather28.6%7.5%1,512
Security0.0%0.2%0
5,294 delay minutes on 47 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← November 2024January 2025 →

Questions and answers

How many flights left MSO on time in December 2024?

83.2% of 303 scheduled domestic departures left less than 15 minutes late, and 83.5% reached their destination on time. The national figures that month were 77.8% and 78.1%.

How does that compare with a year earlier?

In December 2023, 78.7% of 253 departures left on time and 0.8% were cancelled, against 83.2% and 1.0% in December 2024.

Provenance

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