Salt Lake City (SLC) to Baltimore (BWI) flights
Southwest Airlines, Delta Air Lines fly nonstop from Salt Lake City International Airport to Baltimore/Washington International Thurgood Marshall Airport, with about 15 flights a week in July 2026. The 1,865-mile flight takes about 4h 1m gate to gate.
- Distance
- 1,865 mi · 3,001 km
- Flight time
- 4h 1m
- Airlines
- 2
- Seats filled
- 75%
Airlines flying SLC to BWI
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 8 | Boeing 737 MAX 8, Boeing 737-800, Boeing 737-700 / MAX 7 | 54,408 | 3h 53m |
| Delta Air Lines | 7 | Boeing 737-900ER, Airbus A220-300, Boeing 737-800 | 40,284 | 4h 11m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SLC to BWI flight schedule
3 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 11:30am and the last at 11:49pm. 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) |
|---|---|---|---|---|
| WN 3657Southwest Airlines | 11:30am | 5:35pm | 24 | 67% |
| WN 5057Southwest Airlines | 12:40pm | 6:45pm | 4 | n/a |
| DL 2079Delta Air Lines | 11:49pm | 6:20am | 31 | 78% |
Is SLC to BWI on time?
From September 2025 to August 2026, 81% of 769 flights arrived within 15 minutes of schedule and 1.6% were cancelled. Flights leaving around 5pm were the most punctual (85%), those around 12pm the least (77%). Most delay time was caused by late-arriving aircraft (35%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 409 | 84% | 9 min | 1.2% |
| Delta Air Lines | 360 | 78% | 9 min | 1.9% |
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 |
|---|---|---|---|
| 5am to 6am | 16 | 100% | |
| 6am to 7am | 21 | 95% | |
| 10am to 11am | 28 | 89% | |
| 11am to 12pm | 48 | 78% | |
| 12pm to 1pm | 62 | 77% | |
| 1pm to 2pm | 26 | 77% | |
| 2pm to 3pm | 39 | 78% | |
| 5pm to 6pm | 76 | 85% | |
| 11pm to 12am | 435 | 81% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 63 | 9,393 | |
| September 2025 | 60 | 7,461 | |
| October 2025 | 60 | 7,631 | |
| November 2025 | 57 | 5,336 | |
| December 2025 | 59 | 6,911 | |
| January 2026 | 66 | 7,823 | |
| February 2026 | 74 | 8,599 | |
| March 2026 | 68 | 7,982 | |
| April 2026 | 60 | 6,327 | |
| May 2026 | 62 | 8,163 | |
| June 2026 | 64 | 9,722 | |
| July 2026 | 65 | 9,344 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.