ORIGIN AIRPORT REPORT
MSO
Missoula, MT (MSO) departure reliability
Of 4,955 scheduled reportable flights departing MSO, 81.4% arrived on time, 10.7% arrived at least 30 minutes late, and 0.8% were cancelled during July 2025–June 2026.
Source: U.S. Bureau of Transportation Statistics · Origin-airport cohort · Updated September 16, 2026
HISTORICAL ROUTE SIGNALLower disruption
81.4%arrived on time
10.7%30+ min late
0.8%cancelled
4,955scheduled flights
MOST-FLOWN DIRECTIONS
ALL ROUTES →Which route from MSO had the largest sample?
MSO to DEN was MSO's largest published route sample, with 1,214 scheduled flights and a 79.8% on-time rate during July 2025–June 2026.
MSO→DENMissoula, MT (MSO) to Denver, CO (DEN)1,214 flights analyzedGenerally reliable79.8%on timeMSO→SLCMissoula, MT (MSO) to Salt Lake City, UT (SLC)1,059 flights analyzedLower disruption90.0%on timeMSO→SEAMissoula, MT (MSO) to Seattle, WA (SEA)610 flights analyzedLower disruption80.3%on timeMSO→ORDMissoula, MT (MSO) to Chicago, IL (ORD)525 flights analyzedVariable69.5%on timeMSO→MSPMissoula, MT (MSO) to Minneapolis, MN (MSP)489 flights analyzedLower disruption89.8%on timeMSO→DFWMissoula, MT (MSO) to Dallas/Fort Worth, TX (DFW)436 flights analyzedGenerally reliable80.0%on time
Which airline was most reliable departing MSO?
Among qualifying MSO airline departure results, Delta Air Lines had the highest on-time rate: 89.5% of 956 flights. American Airlines was lowest at 69.9% across 173 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| SkyWest Airlines | 1,523 | 81.9% | 10.3% | 1.1% |
| Delta Air Lines | 956 | 89.5% | 6.5% | 0.4% |
| United Airlines | 822 | 81.4% | 11.9% | 0.6% |
| Envoy Air | 636 | 77.2% | 11.9% | 0.5% |
| Alaska Airlines | 533 | 79.4% | 9.2% | 1.1% |
| Allegiant Air | 290 | 71.4% | 19.3% | 0.7% |
| American Airlines | 173 | 69.9% | 16.2% | 2.9% |
| Frontier Airlines | 22 | 81.8% | 18.2% | 0.0% |
Origin report, not airport-wide operations.
These figures summarize the reported scheduled passenger flights in the dataset, not every flight or every airport process.