Route · LWS → SLC · 2020–2025 BTS data
Lewiston to Salt Lake City
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), LWS to SLC (Lewiston to Salt Lake City) ranks #3202 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 90.9%
- On-time
- +11.9 pts
- vs US avg
- 110 min
- Delay when late
- 3,268
- Flights
- #3202 of 4927
- Corpus placement
Cancelled
0.1%
Best Month
N/A
Worst Month
N/A
Distance
461 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 31 | 4 | 0 | 0 | OO |
| Nov 2025 | 30 | 2 | 0 | 0 | OO |
| Oct 2025 | 31 | 0 | 0 | 0 | OO |
| Sep 2025 | 30 | 0 | 0 | 0 | OO |
| Aug 2025 | 31 | 4 | 0 | 0 | OO |
| Jul 2025 | 31 | 3 | 0 | 0 | OO |
| Jun 2025 | 30 | 0 | 0 | 0 | OO |
| May 2025 | 31 | 3 | 0 | 0 | OO |
| Apr 2025 | 30 | 0 | 0 | 0 | OO |
| Mar 2025 | 31 | 0 | 0 | 0 | OO |
| Jan 2025 | 31 | 3 | 0 | 0 | OO |
| Dec 2024 | 31 | 4 | 1 | 0 | OO |
| Nov 2024 | 30 | 1 | 0 | 0 | OO |
| Oct 2024 | 31 | 1 | 0 | 0 | OO |
| Sep 2024 | 30 | 4 | 0 | 0 | OO |
| Aug 2024 | 31 | 3 | 0 | 0 | OO |
| Jul 2024 | 31 | 5 | 0 | 0 | OO |
| Jun 2024 | 30 | 2 | 0 | 0 | OO |
| May 2024 | 31 | 3 | 0 | 0 | OO |
| Apr 2024 | 30 | 4 | 0 | 0 | OO |
| Mar 2024 | 31 | 1 | 0 | 0 | OO |
| Jan 2024 | 31 | 6 | 0 | 0 | OO |
| Dec 2023 | 31 | 2 | 0 | 0 | OO |
| Nov 2023 | 30 | 3 | 0 | 0 | OO |
LWS–SLC seasonal on-time pattern
Best: March (95.8%) · weakest: December (86.9%)
Strongest calendar month
March
95.8% on-time · ~51 flights/mo
Busiest calendar month
February
~61 flights/mo avg
Weakest calendar month
December
86.9% on-time · ~43 flights/mo
Cancellation Rate
0.1%
1 of 735 flights
Diversion Rate
0.0%
0 of 735 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
LWS - Lewiston
Full on-time, delay-cause, and seasonal performance for Lewiston, ID.
LWS on-time profileSLC - Salt Lake City
Full on-time, delay-cause, and seasonal performance for Salt Lake City, UT.
SLC on-time profileCompare the two airports
See LWS and SLC side by side on delays, cancellations, and reliability.
Compare LWS vs SLCOrigin-hub reliability standing
Among LWS's stronger departures
LWS → SLC posts a 90.9% on-time rate, landing in the ≥85% band with 2 of 3 BTS-tracked routes leaving Lewiston. The same hub also shows 1 mid-band and 0 challenged departures · fleet-wide on-time rank #97 of 4927 (highest on-time = #1).
Similar routes
Other BTS-tracked routes with comparable performance or trip length to LWS–SLC.
Routes with a similar on-time rate
What the Data Says About LWS to SLC
Lewiston to Salt Lake City (LWS to SLC) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 90.9% on-time rate across 3,268 flights, with delays that do happen averaging 110.0 minutes. The corridor runs roughly 461 miles and is served by 1 carrier. Over the most recent 24 months, 1 of 735 flights were cancelled (0.1%) and 0 diverted (0.0%).
Monthly performance data for this route did not show a clear best/worst split in the sample window; review the monthly table above for period-by-period detail.
On the multi-year calendar, LWS–SLC peaks in March at 95.8% on-time while February carries the heaviest traffic (~61 flights per month) ; the softest month is December at 86.9%, a 8.9-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does LWS to SLC rank among US routes by traffic? ▼
How often are flights delayed from LWS to SLC? ▼
What is the cancellation rate for LWS to SLC? ▼
How far is the flight from LWS to SLC? ▼
Airports on this route
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Using LWS–SLC data
LWS–SLC runs 11.9 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare LWS and SLC airport profiles: delay causes and top routes differ even on the same corridor. LWS airport
- If your dates flex, March (95.8% on-time) beats December (86.9%) on this corridor. Seasonal chart
- 4 other routes post a similar 90.9% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.