MSO (Missoula) to LAS (Las Vegas) flights arrive on time 72% of the time. The most reliable airline on this route is Allegiant Air at 71%. The average delay is 75 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated August 2026.MSO → LAS
MSO (Missoula) to LAS (Las Vegas)
MSO → LAS on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
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This route is delayed fairly often. About 72% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
Accurate?
Good to know
Departing from MSO
82% on timeExpect ~19 min sitting on the taxiway after your gate pushes back. MSO has long runway queues.
TSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at LAS
80% on timeWhen flights into LAS are late, the average delay is 64 minutes. Build buffer if you have ground plans.
If connecting at LAS: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what Allegiant Air owes you — refund rights, action plan, complaint email. Free.
Flying out of MSO? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Know someone flying soon?
Send them the link — delay data, TSA waits, weather, all free.
Data last updated August 2026. Source: Bureau of Transportation Statistics.