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Route · RAP → SLC · 2020–2025 BTS data

Rapid City to Salt Lake City

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), RAP to SLC (Rapid City to Salt Lake City) ranks #4821 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

92.5%
On-time
+13.5 pts
vs US avg
112 min
Delay when late
583
Flights
#4821 of 4927
Corpus placement

Cancelled

0.3%

Best Month

N/A

Worst Month

N/A

Distance

508 mi

Carriers

1

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Sep 2022 30 2 0 0 OO
Aug 2022 31 5 0 0 OO
Jul 2022 31 1 0 0 OO
Oct 2021 31 5 0 0 OO
Sep 2021 30 2 0 0 OO
Aug 2021 31 2 0 0 OO
Jul 2021 31 1 0 0 OO
Jun 2021 30 0 0 0 OO
May 2021 31 1 0 0 OO
Apr 2021 30 3 0 0 OO
Mar 2021 31 3 0 0 OO
Jan 2021 31 4 0 0 OO
Dec 2020 31 3 0 0 OO
Nov 2020 30 2 0 0 OO
Oct 2020 31 1 0 0 OO
Sep 2020 30 1 0 0 OO
Aug 2020 31 0 0 0 OO
Mar 2020 31 4 2 0 OO
Jan 2020 31 4 0 0 OO

RAP–SLC seasonal on-time pattern

Best: June (100.0%) · weakest: January (87.1%)

85%90%95%100%105% JanMarAprMayJunJulAugSepOctNovDec 90.3%

Strongest calendar month

June

100.0% on-time · ~30 flights/mo

Busiest calendar month

January

~31 flights/mo avg

Weakest calendar month

January

87.1% on-time · ~31 flights/mo

Cancellation Rate

0.3%

2 of 583 flights

Diversion Rate

0.0%

0 of 583 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

RAP - Rapid City

Full on-time, delay-cause, and seasonal performance for Rapid City, SD.

RAP on-time profile

SLC - Salt Lake City

Full on-time, delay-cause, and seasonal performance for Salt Lake City, UT.

SLC on-time profile

Compare the two airports

See RAP and SLC side by side on delays, cancellations, and reliability.

Compare RAP vs SLC

Origin-hub reliability standing

Among RAP's stronger departures

RAP → SLC posts a 92.5% on-time rate, landing in the ≥85% band with 2 of 6 BTS-tracked routes leaving Rapid City. The same hub also shows 3 mid-band and 1 challenged departures · fleet-wide on-time rank #32 of 4927 (highest on-time = #1).

What the Data Says About RAP to SLC

Rapid City to Salt Lake City (RAP to SLC) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 92.5% on-time rate across 583 flights, with delays that do happen averaging 111.5 minutes. The corridor runs roughly 508 miles and is served by 1 carrier. Over the most recent 24 months, 2 of 583 flights were cancelled (0.3%) and 0 diverted (0.0%).

Monthly performance data for this route did not show a clear best/worst split in the sample window; review the monthly table above for period-by-period detail.

On the multi-year calendar, RAP–SLC peaks in June at 100.0% on-time while January carries the heaviest traffic (~31 flights per month) ; the softest month is January at 87.1%, a 12.9-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does RAP to SLC rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, RAP to SLC ranks #4821 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from RAP to SLC? ▼
Flights from Rapid City to Salt Lake City have a 92.5% on-time rate based on 583 flights. The average delay is 111.5 minutes.
What is the cancellation rate for RAP to SLC? ▼
Over the last 24 months, 0.3% of flights on this route were cancelled (2 of 583 flights) and 0.0% were diverted.
How far is the flight from RAP to SLC? ▼
The flight distance from Rapid City (RAP) to Salt Lake City (SLC) is approximately 508 miles. This route is served by 1 carrier.

Airports on this route

RAP Airport

Rapid City
SLC Airport

Salt Lake City
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

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

Using RAP–SLC data

RAP–SLC runs 13.5 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare RAP and SLC airport profiles: delay causes and top routes differ even on the same corridor. RAP airport
  • If your dates flex, June (100.0% on-time) beats January (87.1%) on this corridor. Seasonal chart
  • 4 other routes post a similar 92.5% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

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

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.