BOI (Boise) to SLC (Salt Lake City) flights arrive on time 90% of the time. The most reliable airline on this route is SkyWest Airlines at 94%. The average delay is 87 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated August 2026.BOI → SLC
BOI (Boise) to SLC (Salt Lake City)
BOI → SLC on-time performance by month
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JanFebMarAprMayJunJulAugSepOctNovDec
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This route is usually on time. About 90% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
SkyWest Airlines edges out Delta Air Lines on this route — 94% vs 89% on time.
Airline Comparison
SkyWest Airlines leads at 94% on time; Delta Air Lines trails at 89%.
Accurate?
Good to know
Departing from BOI
83% on timeExpect ~18 min sitting on the taxiway after your gate pushes back. BOI has long runway queues.
TSA is currently ~18 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 ~12 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what SkyWest Airlines owes you — refund rights, action plan, complaint email. Free.
Flying out of BOI? 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.