PlainFlights

Route · PSC → SLC · 2020–2025 BTS data

Pasco/Kennewick/Richland to Salt Lake City

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), PSC to SLC (Pasco/Kennewick/Richland to Salt Lake City) ranks #1986 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

92.3%
On-time
+13.3 pts
vs US avg
107 min
Delay when late
6,338
Flights
#1986 of 4927
Corpus placement

Cancelled

0.1%

Best Month

Nov 2024 99%

Worst Month

Jan 2024 78%

Distance

521 mi

Carriers

3

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 90 5 0 0 DL,OO
Nov 2025 88 5 0 0 OO,DL
Oct 2025 92 6 0 0 OO,DL
Sep 2025 92 2 0 0 OO,DL
Aug 2025 120 6 0 0 OO,DL
Jul 2025 122 10 0 0 OO,DL
Jun 2025 119 7 1 0 OO,DL
May 2025 113 2 0 0 OO,DL
Apr 2025 90 6 0 0 DL,OO
Mar 2025 91 5 0 0 OO,DL
Feb 2025 80 10 0 0 OO
Jan 2025 88 8 0 0 OO
Dec 2024 90 14 0 1 OO
Nov 2024 88 1 0 0 OO,DL
Oct 2024 92 13 0 0 OO,DL
Sep 2024 88 9 0 0 OO,DL
Aug 2024 92 10 0 1 DL,OO
Jul 2024 91 9 0 0 DL,OO
Jun 2024 89 6 0 0 DL,OO
May 2024 88 2 0 0 OO
Apr 2024 86 4 0 0 OO
Mar 2024 88 4 0 0 OO
Feb 2024 78 7 0 0 OO
Jan 2024 87 19 1 0 OO

PSC–SLC seasonal on-time pattern

Best: May (96.4%) · weakest: December (85.7%)

85%90%95%100% JanFebMarAprMayJunJulAugSepOctNovDec 85.7%

Strongest calendar month

May

96.4% on-time · ~88 flights/mo

Busiest calendar month

July

~97 flights/mo avg

Weakest calendar month

December

85.7% on-time · ~87 flights/mo

Cancellation Rate

0.1%

2 of 2,242 flights

Diversion Rate

0.1%

2 of 2,242 flights

Explore origin & destination

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

PSC - Pasco/Kennewick/Richland

Full on-time, delay-cause, and seasonal performance for Pasco/Kennewick/Richland, WA.

PSC 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 PSC and SLC side by side on delays, cancellations, and reliability.

Compare PSC vs SLC

Origin-hub reliability standing

Among PSC's stronger departures

PSC → SLC posts a 92.3% on-time rate, landing in the ≥85% band with 5 of 6 BTS-tracked routes leaving Pasco/Kennewick/Richland. The same hub also shows 1 mid-band and 0 challenged departures · fleet-wide on-time rank #37 of 4927 (highest on-time = #1).

What the Data Says About PSC to SLC

Pasco/Kennewick/Richland to Salt Lake City (PSC to SLC) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 92.3% on-time rate across 6,338 flights, with delays that do happen averaging 107.0 minutes. The corridor runs roughly 521 miles and is served by 3 carriers. Over the most recent 24 months, 2 of 2,242 flights were cancelled (0.1%) and 2 diverted (0.1%).

The monthly split is wide on this route: Nov 2024 posted the strongest performance at 99% on-time, while Jan 2024 came in at just 78% - a 21-point swing worth factoring into travel timing.

On the multi-year calendar, PSC–SLC peaks in May at 96.4% on-time while July carries the heaviest traffic (~97 flights per month) ; the softest month is December at 85.7%, a 10.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does PSC to SLC rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, PSC to SLC ranks #1986 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 PSC to SLC? ▼
Flights from Pasco/Kennewick/Richland to Salt Lake City have a 92.3% on-time rate based on 6,338 flights. The average delay is 107.0 minutes. The best recent month was Nov 2024 with 99% on-time.
What is the cancellation rate for PSC to SLC? ▼
Over the last 24 months, 0.1% of flights on this route were cancelled (2 of 2,242 flights) and 0.1% were diverted.
How far is the flight from PSC to SLC? ▼
The flight distance from Pasco/Kennewick/Richland (PSC) to Salt Lake City (SLC) is approximately 521 miles. This route is served by 3 carriers.
When is the best time to fly from PSC to SLC? ▼
The best recent month for on-time performance was Nov 2024 (99% on-time). The worst was Jan 2024 (78% on-time). Consider booking during months with historically better performance.

Airports on this route

PSC Airport

Pasco/Kennewick/Richland
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 PSC–SLC data

PSC–SLC runs 13.3 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare PSC and SLC airport profiles: delay causes and top routes differ even on the same corridor. PSC airport
  • If your dates flex, May (96.4% on-time) beats December (85.7%) on this corridor. Seasonal chart
  • 4 other routes post a similar 92.3% 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.