PlainFlights

SLC vs GTF - 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
GTF

Great Falls, MT

Great Falls, Montana

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Key Performance Metrics

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

Metric SLC GTF
On-Time Rate (higher is better) 85.8% 88.3%
Avg Delay (lower is better) 76.0 min 88.5 min
Delay Rate (lower is better) 14.2% 11.7%
Cancellation Rate (lower is better) 0.57% 0.60%
Total Flights 1,319,985 29,395
Delayed Flights 186,884 3,436
Cancelled Flights 7,511 176
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%

GTF - Great Falls, MT

Carrier 48.2%
Late Aircraft 20.8%
Weather 17.1%
NAS 13.9%
Security 0.0%

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 GTF

Route Flights On-Time
GTF → SLC
Salt Lake City
5,902 91.9%
SLC → GTF
Great Falls
5,872 92.6%
GTF → DEN
Denver
4,495 83.1%
DEN → GTF
Great Falls
4,494 82%
GTF → SEA
Seattle
1,214 85.7%
SEA → GTF
Great Falls
1,214 87.8%

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.