OnTimeStats

Historical on-time performance

Charlotte to Salt Lake City

1,727 miData through May 2026Source: US DOT · BTS

Flights on CLT–SLC arrive on time 80% of the time over the last 12 months.

On-time rate80%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights

based on 892 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

  • Delta Air Lines
    On-time82%
    Medianon time
    p9025 min
    Cancel1.5%
    Flights337
  • American Airlines
    On-time78%
    Medianon time
    p9035 min
    Cancel1.3%
    Flights555

Why flights run late

Delay causes

  • Airline35%
  • Weather14%
  • Air traffic (NAS)16%
  • Late aircraft34%
  • Security1%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline33%
  • Weather67%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 12 cancellations with a reported cause (BTS reports causes from June 2003).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly CLT → SLC

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 60% to 83% on time.

  • Mornings83% on time · p90 25 min · 591 flights
  • Middays81% on time · p90 30 min · 270 flights
  • Evenings76% on time · p90 45 min · 1,647 flights
  • Overnights60% on time · p90 80 min · 283 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 68% to 81% on time.

  • Thursdays81% on time · p90 35 min · 416 flights
  • Tuesdays80% on time · p90 35 min · 399 flights
  • Wednesdays80% on time · p90 35 min · 400 flights
  • Mondays80% on time · p90 40 min · 413 flights
  • Fridays73% on time · p90 50 min · 418 flights
  • Saturdays72% on time · p90 50 min · 416 flights
  • Sundays68% on time · p90 60 min · 408 flights

Keep exploring

Related pages

Methodology

A flight is on time when it arrives within 15 minutes of schedule — the US DOT / BTS standard. Median and p90(the “1-in-10 bad day”) are read from the full arrival-delay distribution, never averaged across periods.

Figures cover a carrier’s own BTS-coded flights. Cells below ~200 flights are flagged as limited data. All numbers are pre-computed from public BTS On-Time Performance data.