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Route · PDX → SLC · 2020–2025 BTS data

Portland to Salt Lake City

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), PDX to SLC (Portland to Salt Lake City) ranks #698 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

89.8%
On-time
+10.8 pts
vs US avg
74 min
Delay when late
14,015
Flights
#698 of 4927
Corpus placement

Cancelled

0.6%

Best Month

Nov 2024 95%

Worst Month

Jul 2025 79%

Distance

630 mi

Carriers

13

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 201 27 2 0 DL,OO
Nov 2025 189 22 4 0 OO,DL,F9
Oct 2025 211 23 0 0 DL,OO,F9
Sep 2025 176 14 0 0 OO,DL,F9
Aug 2025 222 33 1 1 OO,F9,DL
Jul 2025 247 51 0 0 DL,OO,F9
Jun 2025 232 32 1 0 OO,DL,F9
May 2025 220 11 0 0 OO,DL,F9
Apr 2025 208 17 0 0 DL,F9,OO
Mar 2025 202 21 0 0 OO,DL
Feb 2025 170 23 2 0 OO,DL
Jan 2025 187 24 0 0 OO,DL,F9
Dec 2024 213 29 0 0 DL,F9,OO
Nov 2024 211 10 1 0 OO,DL,F9
Oct 2024 212 14 0 0 OO,DL,F9
Sep 2024 216 23 1 1 OO,DL,F9
Aug 2024 204 33 0 0 DL,F9,OO
Jul 2024 219 26 11 0 DL,F9,OO
Jun 2024 218 32 0 1 DL,F9,OO
May 2024 215 20 0 0 DL,F9,OO
Apr 2024 195 17 0 0 DL,OO
Mar 2024 192 18 0 0 DL,OO
Feb 2024 162 11 0 0 DL,OO
Jan 2024 171 34 4 0 DL,OO

PDX–SLC seasonal on-time pattern

Best: May (93.6%) · weakest: August (86.7%)

86%88%90%92%94% JanFebMarAprMayJunJulAugSepOctNovDec 87.1%

Strongest calendar month

May

93.6% on-time · ~192 flights/mo

Busiest calendar month

July

~212 flights/mo avg

Weakest calendar month

August

86.7% on-time · ~205 flights/mo

Cancellation Rate

0.6%

27 of 4,893 flights

Diversion Rate

0.1%

3 of 4,893 flights

Explore origin & destination

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

PDX - Portland

Full on-time, delay-cause, and seasonal performance for Portland, OR.

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

Compare PDX vs SLC

Origin-hub reliability standing

Among PDX's stronger departures

PDX → SLC posts a 89.8% on-time rate, landing in the ≥85% band with 26 of 44 BTS-tracked routes leaving Portland. The same hub also shows 17 mid-band and 1 challenged departures · fleet-wide on-time rank #161 of 4927 (highest on-time = #1).

What the Data Says About PDX to SLC

Portland to Salt Lake City (PDX to SLC) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 89.8% on-time rate across 14,015 flights, with delays that do happen averaging 74.4 minutes. The corridor runs roughly 630 miles and is served by 13 carriers. Over the most recent 24 months, 27 of 4,893 flights were cancelled (0.6%) and 3 diverted (0.1%).

The monthly split is wide on this route: Nov 2024 posted the strongest performance at 95% on-time, while Jul 2025 came in at just 79% - a 16-point swing worth factoring into travel timing.

On the multi-year calendar, PDX–SLC peaks in May at 93.6% on-time while July carries the heaviest traffic (~212 flights per month) ; the softest month is August at 86.7%, a 6.9-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does PDX to SLC rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, PDX to SLC ranks #698 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 PDX to SLC? ▼
Flights from Portland to Salt Lake City have a 89.8% on-time rate based on 14,015 flights. The average delay is 74.4 minutes. The best recent month was Nov 2024 with 95% on-time.
What is the cancellation rate for PDX to SLC? ▼
Over the last 24 months, 0.6% of flights on this route were cancelled (27 of 4,893 flights) and 0.1% were diverted.
How far is the flight from PDX to SLC? ▼
The flight distance from Portland (PDX) to Salt Lake City (SLC) is approximately 630 miles. This route is served by 13 carriers.
When is the best time to fly from PDX to SLC? ▼
The best recent month for on-time performance was Nov 2024 (95% on-time). The worst was Jul 2025 (79% on-time). Consider booking during months with historically better performance.

Airports on this route

PDX Airport

Portland
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 PDX–SLC data

PDX–SLC runs 10.8 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare PDX and SLC airport profiles: delay causes and top routes differ even on the same corridor. PDX airport
  • If your dates flex, May (93.6% on-time) beats August (86.7%) on this corridor. Seasonal chart
  • 4 other routes post a similar 89.8% 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.