Salt Lake City (SLC) to St Louis (STL)
Flight time
≈ 3h 06m
Bearing
90° E
Salt Lake City (SLC) to St Louis (STL) is 1,153 miles (1,856 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies SLC–STL
Filed traffic dataIn May 2026, Delta Air Lines operated the most departures, one of 2 carriers flying nonstop SLC–STL; the Airbus A319 was the most common aircraft at 98% of departures; flights ran 84% full.
Departures
172
May 2026
Seats
22,657
both directions
Passengers
19,109
both directions
Load factor
84.3%
RPM ÷ ASM
Who flies SLC–STL?
Delta Air Lines operated the most nonstop SLC–STL departures in May 2026 (171), one of 2 carriers on the route.
- DL
171 departures · 22,520 seats
Share of departures99.4%84.3%
Load
- WN
1 departures · 137 seats
Share of departures0.6%100.0%
Load
What plane flies SLC–STL?
In May 2026, the Airbus A319 flew 98% of SLC–STL departures — more than any other aircraft type.
- Airbus A319
169 departures · 84.2% load
98.3% - Airbus A220-100
2 departures · 88.5% load
1.2% - Boeing 737-700
1 departures · 100.0% load
0.6%
How has SLC–STL traffic changed?
Nonstop SLC–STL departures fell from 180 in June 2025 to 172 in May 2026.
Monthly nonstop SLC–STL traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
180 departures · 19,022 passengers
85.4%
Load
July 2025
185 departures · 19,466 passengers
83.9%
Load
August 2025
175 departures · 16,362 passengers
75.4%
Load
September 2025
163 departures · 15,088 passengers
77.8%
Load
October 2025
178 departures · 14,935 passengers
75.0%
Load
November 2025
166 departures · 12,993 passengers
69.9%
Load
December 2025
156 departures · 14,142 passengers
66.6%
Load
January 2026
121 departures · 11,701 passengers
75.6%
Load
February 2026
130 departures · 11,054 passengers
72.1%
Load
March 2026
171 departures · 16,795 passengers
79.5%
Load
April 2026
173 departures · 17,336 passengers
75.7%
Load
May 2026
172 departures · 19,109 passengers
84.3%
Load
By direction
Each direction is filed separately — they rarely match.
SLC → STL
81.6% full
87 departures · 9,358 passengers
STL → SLC
87.1% full
85 departures · 9,751 passengers
Nonstop SLC–STL 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 Salt Lake City (SLC) from St Louis (STL)?
SLC to STL is 1,153 miles (1,856 km / 1,002 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from SLC to STL?
A nonstop covers the 1,153-mile great-circle distance in roughly 3h 06m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies SLC–STL?
In May 2026, the Airbus A319 flew the largest share of departures (98.3%), followed by the Airbus A220-100 (1.2%).
What mileage do I earn flying SLC–STL?
Distance-based programs credit off the 1,153-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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