Boston (BOS) to Salt Lake City (SLC)
Flight time
≈ 5h 00m
Bearing
281° W
Boston (BOS) to Salt Lake City (SLC) is 2,100 miles (3,380 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies BOS–SLC
Filed traffic dataIn May 2026, Delta Air Lines was the only carrier flying nonstop BOS–SLC; the Airbus A321neo was the most common aircraft at 99% of departures; flights ran 86% full.
Departures
184
May 2026
Seats
35,673
both directions
Passengers
30,744
both directions
Load factor
86.2%
RPM ÷ ASM
Who flies BOS–SLC?
Delta Air Lines was the only carrier to fly nonstop BOS–SLC in May 2026 (184 departures).
- DL
184 departures · 35,673 seats
Share of departures100.0%86.2%
Load
What plane flies BOS–SLC?
In May 2026, the Airbus A321neo flew 99% of BOS–SLC departures — more than any other aircraft type.
- Airbus A321neo
183 departures · 86.2% load
99.5% - Boeing 737-900ER
1 departures · 92.2% load
0.5%
How has BOS–SLC traffic changed?
Nonstop BOS–SLC departures fell from 218 in June 2025 to 184 in May 2026.
Monthly nonstop BOS–SLC traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
218 departures · 36,214 passengers
89.9%
Load
July 2025
245 departures · 40,330 passengers
90.9%
Load
August 2025
230 departures · 37,901 passengers
89.8%
Load
September 2025
185 departures · 30,767 passengers
86.5%
Load
October 2025
185 departures · 31,872 passengers
89.3%
Load
November 2025
194 departures · 27,631 passengers
75.9%
Load
December 2025
210 departures · 31,333 passengers
80.2%
Load
January 2026
171 departures · 26,002 passengers
81.0%
Load
February 2026
204 departures · 28,797 passengers
79.4%
Load
March 2026
264 departures · 39,070 passengers
83.7%
Load
April 2026
184 departures · 28,667 passengers
80.9%
Load
May 2026
184 departures · 30,744 passengers
86.2%
Load
By direction
Each direction is filed separately — they rarely match.
BOS → SLC
85.7% full
92 departures · 15,299 passengers
SLC → BOS
86.6% full
92 departures · 15,445 passengers
Nonstop BOS–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 Boston (BOS) from Salt Lake City (SLC)?
BOS to SLC is 2,100 miles (3,380 km / 1,825 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from BOS to SLC?
A nonstop covers the 2,100-mile great-circle distance in roughly 5h 00m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies BOS–SLC?
In May 2026, the Airbus A321neo flew the largest share of departures (99.5%), followed by the Boeing 737-900ER (0.5%).
What mileage do I earn flying BOS–SLC?
Distance-based programs credit off the 2,100-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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