Route
SLC → MSO
Salt Lake City International Airport Missoula Montana Airport
436 miles
Return route MSO → SLC →
How punctual is this route?
- On-time arrivals
- 88.7%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 76 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,059
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 66%
- Extreme weather 20%
- Late-arriving aircraft 8%
- Air traffic control & airport 6%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 87.8% | 74 |
| October 2025 | 92.4% | 92 |
| November 2025 | 90.2% | 88 |
| December 2025 | 92.0% | 90 |
| January 2026 | 87.2% | 87 |
| February 2026 | 85.9% | 78 |
| March 2026 | 82.2% | 92 |
| April 2026 | 82.0% | 90 |
| May 2026 | 91.4% | 93 |
| June 2026 | 96.7% | 90 |
| July 2026 | 88.0% | 92 |
| August 2026 | 88.2% | 93 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| SkyWest Airlines | 592 | 91.7% | 1.4% | 53 min |
| Delta Air Lines | 467 | 84.9% | 0.4% | 92 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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