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
US DOT T-100 · filed dataIn April 2026, Delta Air Lines operated the most departures, one of 4 carriers flying nonstop BOI–SLC; the Airbus A220-100 was the most common aircraft at 46% of departures; flights ran 77% full.
Departures
309
April 2026
Seats
35,150
both directions
Passengers
26,989
both directions
Load factor
76.8%
passengers ÷ seats
Who flies BOI–SLC?
Delta Air Lines operated the most nonstop BOI–SLC departures in April 2026 (215), one of 4 carriers on the route.
- DL
Delta Air Lines
215 departures · 27,946 seats
Share of departures69.6%75.8%
Load
- OO
SkyWest Airlines
92 departures · 6,938 seats
Share of departures29.8%80.1%
Load
- AA
American Airlines
1 departures · 190 seats
Share of departures0.3%86.8%
Load
- QX
Horizon Air
1 departures · 76 seats
Share of departures0.3%93.4%
Load
What plane flies BOI–SLC?
In April 2026, the Airbus A220-100 flew 46% of BOI–SLC departures — more than any other aircraft type.
- Airbus A220-100
143 departures · 76.4% load
46.3% - Embraer E175
91 departures · 82.0% load
29.4% - Boeing 737-900ER
60 departures · 76.7% load
19.4% - Airbus A220-300
12 departures · 64.5% load
3.9% - Embraer E170
2 departures · 0.0% load
0.7% - Airbus A321
1 departures · 86.8% load
0.3%
How has BOI–SLC traffic changed?
Nonstop BOI–SLC departures rose from 303 in May 2025 to 309 in April 2026.
Monthly nonstop BOI–SLC traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
303 departures · 31,286 passengers
79.3%
Load
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
By direction
The DOT files each direction separately — they rarely match.
BOI → SLC
79.4% full
156 departures · 14,096 passengers
SLC → BOI
74.1% full
153 departures · 12,893 passengers
Nonstop BOI–SLC traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
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 April 2026, the Airbus A220-100 flew the largest share of departures (46.3%), followed by the Embraer E175 (29.4%).
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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