PlainFlights

SLC vs PDX - 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
SLC

Salt Lake City, UT

Salt Lake City, Utah

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Airport B
PDX

Portland, OR

Portland, Oregon

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Key Performance Metrics

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

Metric SLC PDX
On-Time Rate (higher is better) 85.8% 84.4%
Avg Delay (lower is better) 76.0 min 66.7 min
Delay Rate (lower is better) 14.2% 15.6%
Cancellation Rate (lower is better) 0.57% 0.83%
Total Flights 1,319,985 661,488
Delayed Flights 186,884 103,008
Cancelled Flights 7,511 5,511
Top Delay Cause Carrier Carrier

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

Delay Cause Breakdown

SLC - Salt Lake City, UT

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

PDX - Portland, OR

Carrier 38.4%
Late Aircraft 36.9%
NAS 20.2%
Weather 4.3%
Security 0.2%

Top Routes

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%

Top routes from PDX

Route Flights On-Time
PDX → SEA
Seattle
36,148 87.7%
SEA → PDX
Portland
35,578 83.7%
LAX → PDX
Portland
25,109 86.5%
PDX → LAX
Los Angeles
24,956 87.7%
PDX → DEN
Denver
23,123 84.1%
DEN → PDX
Portland
23,121 77.1%

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.