Historical on-time performance
Minneapolis to Missoula
1,013 miData through May 2026Source: US DOT · BTS
Flights on MSP–MSO arrive on time 77% of the time over the last 12 months.
On-time rate77%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights
based on 454 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesOn-time77%Medianon timep9040 minCancel0.4%Flights454
Why flights run late
Delay causes
- Airline59%
- Weather2%
- Air traffic (NAS)16%
- Late aircraft22%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather100%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 2 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly MSP → MSO
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Middays are the most reliable time of day to fly this route — 88% on time.
- Middays88% on time · p90 15 min · 336 flights
- Evenings78% on time · p90 45 min · 516 flights
- Overnights77% on time · p90 50 min · 566 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 77% to 85% on time.
- Tuesdays85% on time · p90 30 min · 202 flights
- Saturdays83% on time · p90 25 min · 203 flights
- Thursdays80% on time · p90 45 min · 204 flights
- Fridays79% on time · p90 40 min · 206 flights
- Mondays78% on time · p90 45 min · 204 flights
- Wednesdays78% on time · p90 45 min · 203 flights
- Sundays77% on time · p90 45 min · 204 flights
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