PlainFlights

SLC vs DCA - 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

View full profile →
Airport B
DCA

Washington, DC

Washington, Virginia

View full profile →

Key Performance Metrics

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

Metric SLC DCA
On-Time Rate (higher is better) 85.8% 80.8%
Avg Delay (lower is better) 76.0 min 79.6 min
Delay Rate (lower is better) 14.2% 19.2%
Cancellation Rate (lower is better) 0.57% 1.52%
Total Flights 1,319,985 1,425,060
Delayed Flights 186,884 274,313
Cancelled Flights 7,511 21,697
Top Delay Cause Carrier Late Aircraft

✓ / ▲ 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%

DCA - Washington, DC

Late Aircraft 46.4%
Carrier 28.7%
NAS 19.7%
Weather 5.0%
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 DCA

Route Flights On-Time
BOS → DCA
Washington
49,205 81.6%
DCA → BOS
Boston
49,133 80.5%
ATL → DCA
Washington
35,757 79.9%
DCA → ATL
Atlanta
35,728 83.9%
ORD → DCA
Washington
33,643 79%
DCA → ORD
Chicago
33,634 83.8%

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.