Seattle (SEA) to Lewiston (LWS) flights
SkyWest Airlines flies nonstop from Seattle-Tacoma International Airport to Lewiston Nez Perce County Airport, with about 7 flights a week in July 2026. The 262-mile flight takes about 1h 9m gate to gate.
- Distance
- 262 mi · 422 km
- Flight time
- 1h 9m
- Airlines
- 1
- Seats filled
- 69%
Airlines flying SEA to LWS
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| SkyWest Airlines | 7 | Embraer E175 | 17,760 | 1h 9m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SEA to LWS flight schedule
1 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 9:35pm and the last at 9:35pm. 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 3873Delta Air Lines · operated by SkyWest Airlines | 9:35pm | 10:59pm | 31 | 91% |
Is SEA to LWS on time?
From September 2025 to August 2026, 91% of 365 flights arrived within 15 minutes of schedule and 0.3% were cancelled. Flights leaving around 7pm were the most punctual (94%), those around 9pm the least (87%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (65%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Delta Air Lines | 365 | 91% | 10 min | 0.3% |
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 |
|---|---|---|---|
| 7pm to 8pm | 176 | 94% | |
| 9pm to 10pm | 164 | 87% | |
| 10pm to 11pm | 25 | 92% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 30 | 1,501 | |
| September 2025 | 30 | 1,562 | |
| October 2025 | 31 | 1,811 | |
| November 2025 | 30 | 1,480 | |
| December 2025 | 31 | 1,581 | |
| January 2026 | 30 | 1,350 | |
| February 2026 | 28 | 1,198 | |
| March 2026 | 31 | 1,259 | |
| April 2026 | 30 | 1,407 | |
| May 2026 | 31 | 1,640 | |
| June 2026 | 30 | 1,535 | |
| July 2026 | 31 | 1,436 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.