How delayed is Salt Lake City, UT (SLC)?

Salt Lake City, UT has an on-time rate of 84.8%. The average delay is 10.7 min.

What causes delays at SLC?

The main delay causes at SLC are carrier issues (49.1%), weather (8.2%), NAS/air traffic control (17.0%), and late arriving aircraft (25.6%).

What is the best time to fly from SLC?

The best time to fly from SLC is at 6:00 with a 90.7% on-time rate. Sep is the best month with 88.7% on-time flights.

Salt Lake City, UT

Salt Lake City, UT, UT — SLC

On-Time Rate

84.8%

2019-2025

Avg Delay

10.7 min

when delayed

Cancel Rate

1.0%

flights cancelled

Total Flights

757,040

2019-2025

Best Month

Sep

88.7% on-time

Worst Month

Dec

80.4% on-time

Best Departure Time

6:00

90.7% on-time

12-Month On-Time Trend

Delay Causes

Best Time to Fly (By Hour)

Seasonal Pattern

Airlines at SLC

Airline	Flights	On-Time	Avg Delay
Delta Air Lines	336,568	84.4%	N/A
SkyWest Airlines	264,258	89.4%	N/A
Southwest Airlines	72,444	79.1%	N/A
American Airlines	25,575	77.9%	N/A
United Airlines	17,746	78.0%	N/A
Frontier Airlines	13,033	76.0%	N/A
JetBlue Airways	11,812	70.3%	N/A
Alaska Airlines	7,089	78.4%	N/A
Spirit Airlines	3,917	73.4%	N/A
Mesa Airlines	1,366	79.2%	N/A

Most Delayed Routes

Destination	On-Time
SLC → FAIFairbanks, AK	73.9%
SLC → EWRNewark, NJ	74.2%
SLC → OGGKahului, HI	74.7%
SLC → JFKNew York, NY	76.8%
SLC → DALDallas, TX	77.4%

Most Punctual Routes

Destination	On-Time
SLC → HLNHelena, MT	93.6%
SLC → CPRCasper, WY	93.1%
SLC → GTFGreat Falls, MT	92.9%
SLC → PIHPocatello, ID	92.4%
SLC → EKOElko, NV	92.1%

Was your flight from Salt Lake City, UT delayed?

You may be entitled to compensation of up to $700 per passenger for delayed or cancelled flights. Check your eligibility now.

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Data source: Bureau of Transportation Statistics (BTS) On-Time Performance dataset. Statistics are based on reported flight data from 2019 through November 2025 and are not real-time. See our data methodology for details.