Sacramento (SMF) to Boise (BOI) flights
Southwest Airlines, Horizon Air fly nonstop from Sacramento International Airport to Boise Air Terminal/Gowen Field, with about 27 flights a week in July 2026. The 437-mile flight takes about 1h 20m gate to gate.
- Distance
- 437 mi · 703 km
- Flight time
- 1h 20m
- Airlines
- 2
- Seats filled
- 74%
Airlines flying SMF to BOI
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 20 | Boeing 737-700 / MAX 7, Boeing 737 MAX 8, Boeing 737-800 | 99,269 | 1h 19m |
| Horizon Air | 7 | Embraer E175 | 20,303 | 1h 24m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SMF to BOI flight schedule
11 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 6:05am and the last at 8:25pm. 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 3679Southwest Airlines | 6:05am | 8:30am | 12 | 100% |
| WN 346Southwest Airlines | 9:30am | 11:55am | 4 | n/a |
| WN 2506Southwest Airlines | 11:25am | 1:50pm | 8 | n/a |
| WN 972Southwest Airlines | 12:05pm | 2:30pm | 4 | n/a |
| WN 173Southwest Airlines | 12:20pm | 2:45pm | 4 | n/a |
| WN 2989Southwest Airlines | 12:40pm | 3:05pm | 12 | 75% |
| AS 2157Alaska Airlines · operated by Horizon Air | 1:10pm | 3:35pm | 31 | 91% |
| WN 2985Southwest Airlines | 5:45pm | 8:10pm | 4 | n/a |
| WN 2735Southwest Airlines | 7:50pm | 10:15pm | 12 | 92% |
| WN 1669Southwest Airlines | 8:00pm | 10:25pm | 4 | n/a |
| WN 2188Southwest Airlines | 8:25pm | 10:50pm | 12 | 75% |
Is SMF to BOI on time?
From September 2025 to August 2026, 84% of 1,235 flights arrived within 15 minutes of schedule and 0.3% were cancelled. Flights leaving around 11am were the most punctual (94%), those around 9pm the least (71%). Most delay time was caused by late-arriving aircraft (70%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 870 | 81% | 10 min | 0% |
| Alaska Airlines | 365 | 92% | 5 min | 1.1% |
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 | 27 | 100% | |
| 6am to 7am | 27 | 100% | |
| 7am to 8am | 49 | 88% | |
| 8am to 9am | 50 | 98% | |
| 9am to 10am | 230 | 92% | |
| 10am to 11am | 58 | 93% | |
| 11am to 12pm | 72 | 94% | |
| 12pm to 1pm | 51 | 82% | |
| 1pm to 2pm | 207 | 84% | |
| 3pm to 4pm | 42 | 55% | |
| 4pm to 5pm | 37 | 62% | |
| 6pm to 7pm | 29 | 79% | |
| 7pm to 8pm | 81 | 83% | |
| 8pm to 9pm | 155 | 77% | |
| 9pm to 10pm | 98 | 71% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 105 | 10,744 | |
| September 2025 | 102 | 10,111 | |
| October 2025 | 88 | 8,783 | |
| November 2025 | 105 | 10,153 | |
| December 2025 | 108 | 11,148 | |
| January 2026 | 98 | 8,388 | |
| February 2026 | 97 | 9,356 | |
| March 2026 | 94 | 9,418 | |
| April 2026 | 93 | 8,781 | |
| May 2026 | 98 | 10,196 | |
| June 2026 | 112 | 11,540 | |
| July 2026 | 120 | 10,954 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.