ORD (Chicago) to MSO (Missoula) flights arrive on time 81% of the time. The most reliable airline on this route is SkyWest Airlines at 88%. The average delay is 57 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated March 2026.ORD → MSO
ORD (Chicago) to MSO (Missoula)
ORD → MSO on-time performance by month
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This route is on time most of the time. About 81% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
SkyWest Airlines edges out null on this route — 88% vs 79% on time.
Airline Comparison
SkyWest Airlines leads at 88% on time; trails at 79%.
Accurate?
Good to know
Departing from ORD
80% on timeExpect ~20 min sitting on the taxiway after your gate pushes back. ORD has long runway queues.
TSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at MSO
82% on timeWhen flights into MSO are late, the average delay is 75 minutes. Build buffer if you have ground plans.
If connecting at MSO: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.