Boise (BOI) to Salt Lake City (SLC)
Flight time
≈ 1h 23m
Bearing
130° SE
Boise (BOI) to Salt Lake City (SLC) is 290 miles (466 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies BOI–SLC
Filed traffic dataIn May 2026, Delta Air Lines operated the most departures, one of 3 carriers flying nonstop BOI–SLC; the Airbus A220-100 was the most common aircraft at 55% of departures; flights ran 84% full.
Departures
315
May 2026
Seats
34,664
both directions
Passengers
29,140
both directions
Load factor
84.1%
RPM ÷ ASM
Who flies BOI–SLC?
Delta Air Lines operated the most nonstop BOI–SLC departures in May 2026 (232), one of 3 carriers on the route.
- DL
232 departures · 28,305 seats
Share of departures73.7%83.5%
Load
- OO
82 departures · 6,184 seats
Share of departures26.0%86.7%
Load
- WN
1 departures · 175 seats
Share of departures0.3%84.6%
Load
What plane flies BOI–SLC?
In May 2026, the Airbus A220-100 flew 55% of BOI–SLC departures — more than any other aircraft type.
- Airbus A220-100
174 departures · 82.9% load
55.2% - Embraer E175
81 departures · 87.7% load
25.7% - Boeing 737-800
40 departures · 90.3% load
12.7% - Boeing 737-900ER
12 departures · 70.4% load
3.8% - Airbus A220-300
6 departures · 78.7% load
1.9% - Bombardier CRJ-700
1 departures · 0.0% load
0.3% - Boeing 737 MAX 8
1 departures · 84.6% load
0.3%
How has BOI–SLC traffic changed?
Nonstop BOI–SLC departures rose from 299 in June 2025 to 315 in May 2026.
Monthly nonstop BOI–SLC traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
299 departures · 30,552 passengers
78.2%
Load
July 2025
307 departures · 31,800 passengers
78.5%
Load
August 2025
312 departures · 31,118 passengers
81.0%
Load
September 2025
308 departures · 29,829 passengers
82.7%
Load
October 2025
313 departures · 29,491 passengers
86.0%
Load
November 2025
300 departures · 26,260 passengers
80.5%
Load
December 2025
303 departures · 27,573 passengers
82.4%
Load
January 2026
254 departures · 22,104 passengers
77.2%
Load
February 2026
229 departures · 20,169 passengers
77.6%
Load
March 2026
301 departures · 27,157 passengers
80.3%
Load
April 2026
309 departures · 26,989 passengers
76.8%
Load
May 2026
315 departures · 29,140 passengers
84.1%
Load
By direction
Each direction is filed separately — they rarely match.
BOI → SLC
86.3% full
159 departures · 15,186 passengers
SLC → BOI
81.8% full
156 departures · 13,954 passengers
Nonstop BOI–SLC traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Boise (BOI) from Salt Lake City (SLC)?
BOI to SLC is 290 miles (466 km / 252 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from BOI to SLC?
A nonstop covers the 290-mile great-circle distance in roughly 1h 23m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies BOI–SLC?
In May 2026, the Airbus A220-100 flew the largest share of departures (55.2%), followed by the Embraer E175 (25.7%).
What mileage do I earn flying BOI–SLC?
Distance-based programs credit off the 290-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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