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Route · SLC → PDX · 2020–2025 BTS data

Salt Lake City to Portland

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SLC to PDX (Salt Lake City to Portland) ranks #699 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

88.2%
On-time
+9.2 pts
vs US avg
64 min
Delay when late
14,011
Flights
#699 of 4927
Corpus placement

Cancelled

0.6%

Best Month

Oct 2024 94%

Worst Month

Jan 2024 74%

Distance

630 mi

Carriers

14

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 201 31 2 0 DL,OO
Nov 2025 189 25 4 0 OO,DL,F9
Oct 2025 211 21 0 0 DL,OO,F9
Sep 2025 176 13 0 0 OO,DL,F9
Aug 2025 222 24 1 0 OO,F9,DL
Jul 2025 247 50 1 0 DL,OO,F9
Jun 2025 232 31 3 0 DL,OO,F9
May 2025 220 18 0 0 DL,OO,F9
Apr 2025 208 17 0 0 DL,F9,OO
Mar 2025 202 22 0 0 DL,OO
Feb 2025 170 36 2 0 OO,DL
Jan 2025 187 31 0 1 DL,OO,F9
Dec 2024 213 41 0 0 DL,F9,OO
Nov 2024 211 17 0 0 OO,DL,F9
Oct 2024 212 12 0 1 OO,DL,F9
Sep 2024 216 16 1 1 OO,DL,F9
Aug 2024 205 30 0 0 DL,F9,OO
Jul 2024 219 37 10 0 DL,F9,OO
Jun 2024 218 38 1 0 DL,F9,OO
May 2024 215 26 0 0 DL,F9,OO
Apr 2024 195 21 0 0 DL,OO
Mar 2024 192 30 0 0 DL,OO
Feb 2024 161 18 0 0 DL,OO
Jan 2024 171 45 4 0 DL,OO

SLC–PDX seasonal on-time pattern

Best: September (91.6%) · weakest: December (83.8%)

82%84%86%88%90%92% JanFebMarAprMayJunJulAugSepOctNovDec 83.8%

Strongest calendar month

September

91.6% on-time · ~187 flights/mo

Busiest calendar month

July

~212 flights/mo avg

Weakest calendar month

December

83.8% on-time · ~188 flights/mo

Cancellation Rate

0.6%

29 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.

SLC - Salt Lake City

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

SLC on-time profile

PDX - Portland

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

PDX on-time profile

Compare the two airports

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

Compare SLC vs PDX

Origin-hub reliability standing

Among SLC's stronger departures

SLC → PDX posts a 88.2% on-time rate, landing in the ≥85% band with 54 of 85 BTS-tracked routes leaving Salt Lake City. The same hub also shows 31 mid-band and 0 challenged departures · fleet-wide on-time rank #393 of 4927 (highest on-time = #1).

What the Data Says About SLC to PDX

Salt Lake City to Portland (SLC to PDX) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 88.2% on-time rate across 14,011 flights, with delays that do happen averaging 63.6 minutes. The corridor runs roughly 630 miles and is served by 14 carriers. Over the most recent 24 months, 29 of 4,893 flights were cancelled (0.6%) and 3 diverted (0.1%).

The monthly split is wide on this route: Oct 2024 posted the strongest performance at 94% on-time, while Jan 2024 came in at just 74% - a 21-point swing worth factoring into travel timing.

On the multi-year calendar, SLC–PDX peaks in September at 91.6% on-time while July carries the heaviest traffic (~212 flights per month) ; the softest month is December at 83.8%, a 7.8-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does SLC to PDX rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, SLC to PDX ranks #699 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 SLC to PDX? ▼
Flights from Salt Lake City to Portland have a 88.2% on-time rate based on 14,011 flights. The average delay is 63.6 minutes. The best recent month was Oct 2024 with 94% on-time.
What is the cancellation rate for SLC to PDX? ▼
Over the last 24 months, 0.6% of flights on this route were cancelled (29 of 4,893 flights) and 0.1% were diverted.
How far is the flight from SLC to PDX? ▼
The flight distance from Salt Lake City (SLC) to Portland (PDX) is approximately 630 miles. This route is served by 14 carriers.
When is the best time to fly from SLC to PDX? ▼
The best recent month for on-time performance was Oct 2024 (94% on-time). The worst was Jan 2024 (74% on-time). Consider booking during months with historically better performance.

Airports on this route

SLC Airport

Salt Lake City
PDX Airport

Portland
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 SLC–PDX data

SLC–PDX runs 9.2 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare SLC and PDX airport profiles: delay causes and top routes differ even on the same corridor. SLC airport
  • If your dates flex, September (91.6% on-time) beats December (83.8%) on this corridor. Seasonal chart
  • 4 other routes post a similar 88.2% 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.