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Route · SFO → PDX · 2020–2025 BTS data

San Francisco to Portland

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SFO to PDX (San Francisco to Portland) ranks #360 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

84.4%
On-time
+5.4 pts
vs US avg
64 min
Delay when late
19,421
Flights
#360 of 4927
Corpus placement

Cancelled

0.9%

Best Month

Jan 2025 90%

Worst Month

Mar 2024 66%

Distance

550 mi

Carriers

22

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 235 50 1 0 AS,UA,OO
Nov 2025 280 58 5 0 UA,AS
Oct 2025 344 59 0 0 AS,OO,UA
Sep 2025 328 42 0 0 UA,OO,AS
Aug 2025 327 47 2 0 OO,F9,UA,AS
Jul 2025 315 59 1 0 AS,OO,UA,F9
Jun 2025 301 50 0 0 AS,OO,UA,F9
May 2025 293 54 0 0 AS,OO,UA
Apr 2025 270 37 1 0 OO,UA,AS
Mar 2025 290 51 0 0 AS,OO,UA
Feb 2025 262 51 3 0 AS,OO,UA,F9
Jan 2025 289 29 1 0 AS,OO,UA,F9
Dec 2024 333 67 1 0 AS,F9,OO,UA
Nov 2024 346 75 3 0 OO,UA,AS,F9
Oct 2024 356 38 0 0 UA,AS,OO,F9
Sep 2024 317 65 2 0 OO,UA,AS,F9
Aug 2024 351 66 1 0 AS,F9,OO,UA
Jul 2024 351 89 9 0 AS,F9,OO,UA
Jun 2024 250 81 2 0 AS,F9,OO,UA
May 2024 291 83 3 0 AS,F9,OO,UA
Apr 2024 245 76 2 0 AS,F9,OO,UA
Mar 2024 272 92 1 1 AS,OO,UA
Feb 2024 249 70 4 0 AS,OO,UA
Jan 2024 222 40 23 0 AS,OO,UA

SFO–PDX seasonal on-time pattern

Best: October (89.2%) · weakest: June (80.7%)

80%82%84%86%88%90% JanFebMarAprMayJunJulAugSepOctNovDec 81%

Strongest calendar month

October

89.2% on-time · ~291 flights/mo

Busiest calendar month

March

~293 flights/mo avg

Weakest calendar month

June

80.7% on-time · ~241 flights/mo

Cancellation Rate

0.9%

65 of 7,117 flights

Diversion Rate

0.0%

1 of 7,117 flights

Explore origin & destination

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

SFO - San Francisco

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

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

Compare SFO vs PDX

Origin-hub reliability standing

Mid-pack among SFO departures

From SFO, this corridor sits with 50 other 75–85% on-time routes out of 73 tracked departures, not the hub's reliability leaders (20 at ≥85%) and not the softest ( 3 below 75%). Destination: Portland · fleet on-time rank #1452 of 4927.

What the Data Says About SFO to PDX

Bureau of Transportation Statistics records show San Francisco to Portland (SFO to PDX) running a 84.4% on-time rate over 19,421 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 63.7 minutes. The 550-mile corridor is served by 22 carriers, and over the last 24 months 0.9% of 7,117 flights were cancelled, 0.0% diverted.

The monthly split is wide on this route: Jan 2025 posted the strongest performance at 90% on-time, while Mar 2024 came in at just 66% - a 24-point swing worth factoring into travel timing.

On the multi-year calendar, SFO–PDX peaks in October at 89.2% on-time while March carries the heaviest traffic (~293 flights per month) ; the softest month is June at 80.7%, a 8.5-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does SFO to PDX rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, SFO to PDX ranks #360 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 SFO to PDX? ▼
Flights from San Francisco to Portland have a 84.4% on-time rate based on 19,421 flights. The average delay is 63.7 minutes. The best recent month was Jan 2025 with 90% on-time.
What is the cancellation rate for SFO to PDX? ▼
Over the last 24 months, 0.9% of flights on this route were cancelled (65 of 7,117 flights) and 0.0% were diverted.
How far is the flight from SFO to PDX? ▼
The flight distance from San Francisco (SFO) to Portland (PDX) is approximately 550 miles. This route is served by 22 carriers.
When is the best time to fly from SFO to PDX? ▼
The best recent month for on-time performance was Jan 2025 (90% on-time). The worst was Mar 2024 (66% on-time). Consider booking during months with historically better performance.

Airports on this route

SFO Airport

San Francisco
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 SFO–PDX data

SFO–PDX runs 5.4 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare SFO and PDX airport profiles: delay causes and top routes differ even on the same corridor. SFO airport
  • If your dates flex, October (89.2% on-time) beats June (80.7%) on this corridor. Seasonal chart
  • 4 other routes post a similar 84.4% 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.