BOI (Boise) to SLC (Salt Lake City) flights arrive on time 89% of the time. The most reliable airline on this route is SkyWest Airlines at 91%. The average delay is 82 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated March 2026.BOI → SLC
BOI (Boise) to SLC (Salt Lake City)
BOI → SLC on-time performance by month
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This route is usually on time. About 89% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Airlines are roughly equal on this route — SkyWest Airlines leads slightly at 91% vs Delta Air Lines at 88%.
Airline Comparison
SkyWest Airlines leads at 91% on time; Delta Air Lines trails at 88%.
Accurate?
Good to know
Departing from BOI
84% on timeExpect ~16 min sitting on the taxiway after your gate pushes back. BOI has long runway queues.
TSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at SLC
85% on timeWhen flights into SLC are late, the average delay is 70 minutes. Build buffer if you have ground plans.
If connecting at SLC: 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.