St Louis (STL) to Salt Lake City (SLC) flights
Delta Air Lines flies nonstop from St. Louis Lambert International Airport to Salt Lake City International Airport, with about 20 flights a week in July 2026. The 1,156-mile flight takes about 3h 13m gate to gate.
- Distance
- 1,156 mi · 1,860 km
- Flight time
- 3h 13m
- Airlines
- 1
- Seats filled
- 77%
Airlines flying STL to SLC
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Delta Air Lines | 20 | Airbus A220-100, Airbus A319, Airbus A220-300 | 90,563 | 3h 13m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
STL to SLC flight schedule
3 flight numbers flew this route in August 2026, 3 of them almost daily. The first usually leaves at 8:00am and the last at 7:45pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| DL 2363Delta Air Lines | 8:00am | 10:12am | 31 | 91% |
| DL 2455Delta Air Lines | 2:32pm | 4:39pm | 26 | 88% |
| DL 1492Delta Air Lines | 7:45pm | 9:55pm | 30 | 82% |
Is STL to SLC on time?
From September 2025 to August 2026, 87% of 990 flights arrived within 15 minutes of schedule and 0.9% were cancelled. Flights leaving around 8am were the most punctual (95%), those around 7pm the least (81%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (60%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Delta Air Lines | 981 | 87% | 14 min | 0.9% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 6am to 7am | 100 | 86% | |
| 7am to 8am | 179 | 92% | |
| 8am to 9am | 86 | 95% | |
| 2pm to 3pm | 304 | 86% | |
| 5pm to 6pm | 60 | 90% | |
| 6pm to 7pm | 71 | 81% | |
| 7pm to 8pm | 166 | 81% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 87 | 7,943 | |
| September 2025 | 82 | 7,526 | |
| October 2025 | 87 | 7,281 | |
| November 2025 | 83 | 6,225 | |
| December 2025 | 78 | 7,113 | |
| January 2026 | 60 | 5,677 | |
| February 2026 | 65 | 5,452 | |
| March 2026 | 85 | 8,278 | |
| April 2026 | 86 | 8,601 | |
| May 2026 | 85 | 9,751 | |
| June 2026 | 90 | 9,258 | |
| July 2026 | 92 | 9,195 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.