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Route · SJC → PDX · 2020–2025 BTS data

San Jose to Portland

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SJC to PDX (San Jose to Portland) ranks #796 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

86.4%
On-time
+7.4 pts
vs US avg
58 min
Delay when late
13,062
Flights
#796 of 4927
Corpus placement

Cancelled

0.4%

Best Month

Jan 2025 92%

Worst Month

Jul 2025 75%

Distance

569 mi

Carriers

22

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 184 24 0 0 WN,AS,OO
Nov 2025 117 19 0 0 OO,AS,WN
Oct 2025 162 31 0 0 OO,WN
Sep 2025 150 25 0 1 WN,OO
Aug 2025 142 21 0 0 OO,WN
Jul 2025 136 34 0 0 OO,WN
Jun 2025 132 27 0 0 OO,WN
May 2025 120 14 0 0 OO,WN
Apr 2025 138 16 0 0 OO,WN
Mar 2025 153 17 0 0 AS,OO,WN
Feb 2025 129 19 1 0 AS,OO,WN
Jan 2025 136 11 1 0 OO,WN
Dec 2024 197 31 0 0 OO,WN
Nov 2024 211 28 1 1 OO,WN,AS
Oct 2024 266 34 2 1 AS,OO,WN,NK
Sep 2024 245 34 0 0 WN,NK,OO
Aug 2024 236 27 0 0 NK,WN,OO
Jul 2024 199 35 1 0 NK,OO,WN
Jun 2024 217 40 0 0 NK,OO,WN
May 2024 190 35 0 0 OO,WN
Apr 2024 189 24 0 0 OO,WN
Mar 2024 176 19 0 0 OO,WN
Feb 2024 160 20 1 0 AS,OO,WN
Jan 2024 185 36 10 0 AS,WN,OO

SJC–PDX seasonal on-time pattern

Best: March (90.4%) · weakest: June (80.9%)

80%85%90%95% JanFebMarAprMayJunJulAugSepOctNovDec 85.2%

Strongest calendar month

March

90.4% on-time · ~177 flights/mo

Busiest calendar month

October

~200 flights/mo avg

Weakest calendar month

June

80.9% on-time · ~187 flights/mo

Cancellation Rate

0.4%

17 of 4,170 flights

Diversion Rate

0.1%

3 of 4,170 flights

Explore origin & destination

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

SJC - San Jose

Full on-time, delay-cause, and seasonal performance for San Jose, CA.

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

Compare SJC vs PDX

Origin-hub reliability standing

Among SJC's stronger departures

SJC → PDX posts a 86.4% on-time rate, landing in the ≥85% band with 21 of 31 BTS-tracked routes leaving San Jose. The same hub also shows 9 mid-band and 1 challenged departures · fleet-wide on-time rank #804 of 4927 (highest on-time = #1).

What the Data Says About SJC to PDX

San Jose to Portland (SJC to PDX) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 86.4% on-time rate across 13,062 flights, with delays that do happen averaging 57.7 minutes. The corridor runs roughly 569 miles and is served by 22 carriers. Over the most recent 24 months, 17 of 4,170 flights were cancelled (0.4%) and 3 diverted (0.1%).

The monthly split is wide on this route: Jan 2025 posted the strongest performance at 92% on-time, while Jul 2025 came in at just 75% - a 17-point swing worth factoring into travel timing.

On the multi-year calendar, SJC–PDX peaks in March at 90.4% on-time while October carries the heaviest traffic (~200 flights per month) ; the softest month is June at 80.9%, a 9.5-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does SJC to PDX rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, SJC to PDX ranks #796 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 SJC to PDX? ▼
Flights from San Jose to Portland have a 86.4% on-time rate based on 13,062 flights. The average delay is 57.7 minutes. The best recent month was Jan 2025 with 92% on-time.
What is the cancellation rate for SJC to PDX? ▼
Over the last 24 months, 0.4% of flights on this route were cancelled (17 of 4,170 flights) and 0.1% were diverted.
How far is the flight from SJC to PDX? ▼
The flight distance from San Jose (SJC) to Portland (PDX) is approximately 569 miles. This route is served by 22 carriers.
When is the best time to fly from SJC to PDX? ▼
The best recent month for on-time performance was Jan 2025 (92% on-time). The worst was Jul 2025 (75% on-time). Consider booking during months with historically better performance.

Airports on this route

SJC Airport

San Jose
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 SJC–PDX data

SJC–PDX runs 7.4 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare SJC and PDX airport profiles: delay causes and top routes differ even on the same corridor. SJC airport
  • If your dates flex, March (90.4% on-time) beats June (80.9%) on this corridor. Seasonal chart
  • 4 other routes post a similar 86.4% 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.