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Airport · SLC · Salt Lake City, Utah

Salt Lake City, UT

According to PlainFlights' airport traffic ranking (BTS On-Time Performance total flights), Salt Lake City, UT (SLC) ranks #19 of 382 tracked US airports by total flights (most flights = #1). Salt Lake City, UT posts top-quartile on-time performance among the 382 tracked U.S. airports, as one of the busiest U.S. airports.

Data updated 2026-06-13

85.8%
On-time
Top 25%
on-time, US airports
76 min
Delay when late
0.57%
Cancelled
#19 of 382
Corpus placement
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SLC on-time rate vs. the national average

Ahead of the U.S. average across all 382 tracked airports.

0%100%U.S. average79%85.8%

Delay Cause Breakdown

Top delay cause: Carrier. Total delay minutes: 6,440,965.

Late Aircraft 25.1% (1,615,845 min)
Carrier 50.6% (3,256,529 min)
NAS (National Aviation System) 16.2% (1,041,811 min)
Weather 8.1% (520,744 min)
Security 0.1% (6,036 min)

SLC - seasonal on-time pattern

Best: November (94.7%) · worst: July (90.7%)

90%91%92%93%94%95% JanFebMarAprMayJunJulAugSepOctNovDec 91%

SLC - on-time rate by year

2020–2025, year-over-year trend.

90%92%94%96%98% 202020212022202320242025 95.8% 92.3% ▼ -3.7%

SLC - taxi-out and taxi-in (monthly)

Average taxi-out 18.1 min · taxi-in 7.1 min over the last 24 reported months (U.S. airport mean taxi-out ≈ 16.4 min).

14 min16 min18 min20 min22 min24 min Jan 24Dec 25 22.5 min 18.4 min ▼ -18.2%

SLC's average taxi-out (18.1 min) sits near the recent U.S. airport mean (~16.4 min). Month-to-month, it swings from 16.5 min (October 2024) to 22.5 min (January 2024).

Cancellation & Diversion Analysis

Flight disruption statistics for Salt Lake City, UT.

Cancellation Rate

0.57%

7,511 of 1,319,985 flights

Diversion Rate

0.12%

1,645 of 1,319,985 flights

Delay Rate

14.2%

186,884 of 1,319,985 flights

Top Routes from SLC

Busiest routes to and from Salt Lake City, UT.

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Route Flights On-Time Distance
DEN (Denver) → SLC (Salt Lake City) 43,089 78.3% 391 mi
SLC (Salt Lake City) → DEN (Denver) 43,051 78.8% 391 mi
SLC (Salt Lake City) → PHX (Phoenix) 30,395 83.2% 507 mi
PHX (Phoenix) → SLC (Salt Lake City) 30,355 84.5% 507 mi
LAX (Los Angeles) → SLC (Salt Lake City) 27,163 87.1% 590 mi
SLC (Salt Lake City) → LAX (Los Angeles) 27,094 84.2% 590 mi
SLC (Salt Lake City) → LAS (Las Vegas) 22,829 78.7% 368 mi
LAS (Las Vegas) → SLC (Salt Lake City) 22,779 81.8% 368 mi
SEA (Seattle) → SLC (Salt Lake City) 22,743 85.1% 689 mi
SLC (Salt Lake City) → SEA (Seattle) 22,741 84% 689 mi
DFW (Dallas/Fort Worth) → SLC (Salt Lake City) 21,693 76.2% 989 mi
SLC (Salt Lake City) → DFW (Dallas/Fort Worth) 21,688 79% 989 mi
SFO (San Francisco) → SLC (Salt Lake City) 19,875 84.4% 599 mi
SLC (Salt Lake City) → SFO (San Francisco) 19,871 80% 599 mi
SLC (Salt Lake City) → ATL (Atlanta) 17,964 84.3% 1,590 mi
ATL (Atlanta) → SLC (Salt Lake City) 17,947 83.3% 1,590 mi
ORD (Chicago) → SLC (Salt Lake City) 17,129 81.1% 1,250 mi
SLC (Salt Lake City) → ORD (Chicago) 17,128 81.8% 1,250 mi
SLC (Salt Lake City) → SAN (San Diego) 14,238 84% 626 mi
SAN (San Diego) → SLC (Salt Lake City) 14,228 86.2% 626 mi

Nationwide peers by on-time rate & flight volume

Two PlainFlights-derived comparison paths for Salt Lake City, UT, both outside Utah so the neighborhoods are not same-state geography. Axes stay disjoint: volume peers exclude the on-time peer set. Same-state compare stays below.

Similar on-time rate

Nearest out-of-state BTS on-time rate (this airport: 85.8%).

Bellingham, WA

Bellingham, WA

85.8% on-time 29,229 flights

Flagstaff, AZ

Flagstaff, AZ

85.8% on-time 22,330 flights

Rochester, MN

Rochester, MN

85.8% on-time 20,848 flights

Redding, CA

Redding, CA

85.8% on-time 16,709 flights

Similar flight volume

Nearest out-of-state total flights (this airport: 1,319,985).

Newark, NJ

Newark, NJ

1,354,054 flights 78.1% on-time

New York, NY

New York, NY

1,274,816 flights 79.4% on-time

Houston, TX

Houston, TX

1,404,392 flights 81.6% on-time

Minneapolis, MN

Minneapolis, MN

1,406,487 flights 85.4% on-time

Other Airports in Utah

Compare performance with other Utah airports.

SGU 88%

St. George, UT

St. George · 39,026 flights
PVU 76.5%

Provo, UT

Provo · 20,217 flights
CDC 92%

Cedar City, UT

Cedar City · 7,071 flights
CNY 87.3%

Moab, UT

Moab · 5,341 flights
VEL 86.8%

Vernal, UT

Vernal · 4,784 flights
OGD 76.8%

Ogden, UT

Ogden · 457 flights

SLC delay-share reading

The standout signal at Salt Lake City, UT is the delay mix: Carrier owns 50.6% of 6,440,965 delay minutes across 1,319,985 BTS flights. The on-time headline is 85.8% (6.8 pts above the 79% national average), with 186,884 delayed and 7,511 cancelled (0.57%).

Delay minutes concentrate in Carrier (25.1% late-aircraft, 50.6% carrier, 16.2% NAS, 8.1% weather, 0.1% security). As a busy airport, that mix matters more for connection planning than for a thin schedule.

On the multi-year calendar, SLC is strongest in November (94.7% on-time) and weakest in July (90.7%), a 4.0-point swing. Volume peaks in August (~19,688 flights/month). The busiest connecting route is to DEN (Denver) at 78.3% on-time. Field definitions: on-time performance explained.

Statewide aggregates for Utah: Utah flight data.

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025). Statistics reflect cumulative performance across all available reporting periods. On-time rates exclude cancelled and diverted flights.

Read our methodology - how this data is sourced, computed, and verified.

Using SLC's data

SLC's on-time book is stronger than most peers; the remaining risk sits in the delay mix, not a weak headline rate.

  • Check the busiest route from SLC before you book a connection. See top routes
  • Travel in November rather than July if your dates are flexible. Seasonal patterns
  • Gate-to-wheels taxi-out averages 18.1 min here; check the monthly series before a tight connection. Taxi times

On-time rate reflects the BTS historical average across all reporting carriers at this airport, not any single flight or airline.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Source: U.S. Bureau of Transportation Statistics (BTS) Airline on-time performance and operational reliability · 2025

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. Airport figures are computed directly from BTS On-Time Performance data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.