Lewiston Nez Perce County Airport (LWS): Delays & On-Time Performance
Data through July 2026
Lewiston Nez Perce County Airport (LWS) runs noticeably smoother than most US airports: 92% of its ~2 daily departures leave on time, 14 points above the national average, with an average departure delay of just 10 minutes. 1 airlines fly from Lewiston, ID to 3 destinations.
- Departures on-time
- 92%
- left <15 min late
- Avg dep delay
- 10 min
- Arrivals on-time
- 91%
- Cancelled
- 0.2%
- Destinations
- 3
- nonstop
- Airlines
- 1
Plan your departure from LWS
The choices most likely to improve your odds, based on this airport’s historical record.
- Best day to fly
- Monday
- 93% on-time
- Cancellation risk
- 0.2%
- below the US average
Monthly on-time trend
Best time of day to depart from LWS
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Mondaybest | 93% | 8 min |
| Tuesday | 88% | 14 min |
| Wednesday | 90% | 11 min |
| Thursday | 91% | 9 min |
| Friday | 90% | 14 min |
| Saturday | 92% | 8 min |
| Sunday | 91% | 9 min |
Busiest routes from LWS
| Route | Flights/12mo | On-time | Avg delay |
|---|---|---|---|
| LWS → SLC (Salt Lake City) | 365 | 93% | 10 min |
| LWS → SEA (Seattle) | 364 | 89% | 9 min |
Where flights into LWS come from
| Route | Flights/12mo | On-time | Avg delay |
|---|---|---|---|
| SLC (Salt Lake City) → LWS | 365 | 92% | 5 min |
| SEA (Seattle) → LWS | 364 | 91% | 7 min |
What causes delays at LWS
Share of total delay minutes by cause, as reported by carriers to the US DOT, weighted across routes departing LWS.
- Late-arriving aircraft2%
- Airline operations78%
- National airspace system4%
- Weather16%
Alternative airports near Lewiston
Other airports within 120 miles, compared on departure reliability.
| Airport | Distance | On-time departures | Avg delay |
|---|---|---|---|
| GEG — Spokane International Airport | 89 mi | 85% | 11 min |
| PSC — Tri Cities Airport | 101 mi | 89% | 11 min |
Compare the airport-level record first, then check the exact route you plan to book.
Frequently asked questions
- How often are flights delayed at LWS?
- 8% of departures from Lewiston Nez Perce County Airport left 15+ minutes late between 2024-07 and 2026-07, with an average departure delay of 10 minutes. The national on-time average over the same period was 78%.
- How often are flights cancelled at LWS?
- 0.2% of scheduled departures from LWS were cancelled in this period, compared with a national rate of 1.6%.
Popular route pages from this airport
Related guides
Based on 1,737 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.