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Route on-time record

SLC to MSO: most on-time flights and the best time to fly

Salt Lake City (Salt Lake City International Airport) to Missoula (Missoula Montana Airport). 1,059 nonstop flights in Jun 2025 to May 2026, 87% arrived within 15 minutes and 0.9% were cancelled. The most reliable flight number was SkyWest 4112 at 10:55 AM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

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SLC → MSO

Salt Lake City to Missoula: 1,059 nonstop flights a year

On time (12 months)

87%

Cancelled

0.9%

avg delay 11 min

Best time to leave

9 AM to noon

93% on time vs 78% after 9 PM

Most reliable airline

SkyWest

91% chance on time

Check SLC to MSO fares

Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Most reliable nonstop flights

Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.

  1. #1 · SkyWest 4112 · sold as United Express, Delta Connection, American Eagle or Alaska

    10:55 AM → 12:34 PM1h 39m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    93%

    chance on time

    On time (history)
    95%
    Cancelled
    2.8%
    Avg arrival delay
    2 min
    • Arrived on time 95% of the time (243 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (9 AM to noon: 93% on time; After 9 PM: 78%).

    Strong track record · 243 flights

    Find 10:55 AM flight fares Opens this date on Aviasales

  2. #2 · SkyWest 3808 · sold as United Express, Delta Connection, American Eagle or Alaska

    3:47 PM → 5:23 PM1h 36m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    90%

    chance on time

    On time (history)
    91%
    Cancelled
    0.3%
    Avg arrival delay
    5 min
    • Arrived on time 91% of the time (338 flights, Jun 2025 to May 2026).

    Strong track record · 338 flights

    Find 3:47 PM flight fares Opens this date on Aviasales

  3. #3 · Delta 1723

    10:50 PM → 12:24 AM1h 34m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    77%

    chance on time

    On time (history)
    78%
    Cancelled
    0.3%
    Avg arrival delay
    24 min
    • Arrived on time 78% of the time (343 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (After 9 PM: 78% on time; 9 AM to noon: 93%).

    Strong track record · 343 flights

    Find Delta 1723 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)91%

    592 flights · 93% on time as flown · 1.3% cancel

  • Delta Air Lines81%

    467 flights · 80% on time as flown · 0.6% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • 9 AM to noon93%

    359 flights · avg delay 4 min

  • 3 to 6 PM91%

    342 flights · avg delay 5 min

  • After 9 PM78%

    358 flights · avg delay 24 min

On time by month

All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.

J
85
F
90
M
87
A
89
M
91
J
87
J
86
A
91
S
93
O
95
N
92
D
88

What delays this route

  • Airline (crew, maintenance, boarding)62%
  • Air traffic control and airport volume14%
  • Severe weather13%
  • Late-arriving aircraft11%

Share of delay minutes by the cause airlines report to the US DOT.

Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure

Finding the most reliable connections from SLC to MSO…

SLC to MSO questions

What time of day is best to fly SLC to MSO?
9 AM to noon: 93% of flights arrived on time, against 78% for departures after 9 PM.
Which airline is most on time from SLC to MSO?
SkyWest, with a season-adjusted 91% chance of operating and arriving on time over 592 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
What is the worst month for delays on SLC to MSO?
January (85% on time); the best was October (95%), averaged over Jun 2023 to May 2026.
Is this a prediction for my flight?
No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.

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