PlainFlights

LWS vs SLC - Airport Comparison

Select two airports to compare on-time performance, delays, cancellations, and top routes using U.S. Department of Transportation Bureau of Transportation Statistics (BTS) data (2020–2025) across all 50 states. See our methodology for how metrics are computed.

Airport A
LWS

Lewiston, ID

Lewiston, Idaho

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Airport B
SLC

Salt Lake City, UT

Salt Lake City, Utah

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Key Performance Metrics

BTS on-time performance data, 2020–2025 cumulative.

Metric LWS SLC
On-Time Rate (higher is better) 89.7% 85.8%
Avg Delay (lower is better) 101.2 min 76.0 min
Delay Rate (lower is better) 10.3% 14.2%
Cancellation Rate (lower is better) 0.36% 0.57%
Total Flights 10,808 1,319,985
Delayed Flights 1,112 186,884
Cancelled Flights 39 7,511
Top Delay Cause Carrier Carrier

✓ / ▲ indicates the more favorable value. Data: BTS On-Time Performance, 2020–2025.

Delay Cause Breakdown

LWS - Lewiston, ID

Carrier 66.1%
Weather 20.3%
Late Aircraft 10.0%
NAS 3.4%
Security 0.2%

SLC - Salt Lake City, UT

Carrier 50.6%
Late Aircraft 25.1%
NAS 16.2%
Weather 8.1%
Security 0.1%

Top Routes

Top routes from LWS

Route Flights On-Time
LWS → SLC
Salt Lake City
3,268 90.9%
SLC → LWS
Lewiston
3,267 90.9%
DEN → LWS
Lewiston
1,103 85.2%
LWS → DEN
Denver
1,103 83.7%
LWS → SEA
Seattle
734 88.1%
SEA → LWS
Lewiston
734 88.8%

Top routes from SLC

Route Flights On-Time
DEN → SLC
Salt Lake City
43,089 78.3%
SLC → DEN
Denver
43,051 78.8%
SLC → PHX
Phoenix
30,395 83.2%
PHX → SLC
Salt Lake City
30,355 84.5%
LAX → SLC
Salt Lake City
27,163 87.1%
SLC → LAX
Los Angeles
27,094 84.2%

Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025) Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025) On-time rates exclude cancelled and diverted flights. PlainFlights is not affiliated with BTS or the DOT

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This tool queries live on-time, delay, and cancellation figures for the two selected airports from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.