Route · PDX → SFO · 2020–2025 BTS data
Portland to San Francisco
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), PDX to SFO (Portland to San Francisco) ranks #358 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 81.6%
- On-time
- +2.6 pts
- vs US avg
- 66 min
- Delay when late
- 19,485
- Flights
- #358 of 4927
- Corpus placement
Cancelled
1.1%
Best Month
Jan 2025 89%
Worst Month
Apr 2024 42%
Distance
550 mi
Carriers
21
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 238 | 63 | 1 | 0 | AS,UA,OO |
| Nov 2025 | 280 | 65 | 5 | 0 | UA,AS |
| Oct 2025 | 343 | 86 | 1 | 0 | AS,OO,UA |
| Sep 2025 | 329 | 65 | 0 | 0 | UA,OO,AS |
| Aug 2025 | 325 | 60 | 1 | 0 | OO,F9,UA,AS |
| Jul 2025 | 316 | 67 | 3 | 0 | AS,OO,UA,F9 |
| Jun 2025 | 303 | 42 | 0 | 0 | AS,OO,UA,F9 |
| May 2025 | 293 | 41 | 1 | 0 | AS,OO,UA |
| Apr 2025 | 270 | 57 | 1 | 0 | OO,UA,AS |
| Mar 2025 | 290 | 69 | 1 | 1 | AS,OO,UA |
| Feb 2025 | 262 | 63 | 3 | 0 | AS,OO,UA,F9 |
| Jan 2025 | 288 | 31 | 1 | 0 | AS,OO,UA,F9 |
| Dec 2024 | 334 | 77 | 2 | 1 | AS,F9,OO,UA |
| Nov 2024 | 345 | 88 | 6 | 0 | OO,UA,AS,F9 |
| Oct 2024 | 356 | 59 | 0 | 0 | UA,AS,OO,F9 |
| Sep 2024 | 318 | 58 | 1 | 0 | OO,UA,AS,F9 |
| Aug 2024 | 351 | 69 | 1 | 1 | AS,F9,OO,UA |
| Jul 2024 | 351 | 66 | 12 | 0 | AS,F9,OO,UA |
| Jun 2024 | 250 | 113 | 4 | 0 | AS,F9,OO,UA |
| May 2024 | 291 | 137 | 6 | 2 | AS,F9,OO,UA |
| Apr 2024 | 245 | 142 | 1 | 1 | AS,F9,OO,UA |
| Mar 2024 | 273 | 136 | 1 | 1 | AS,OO,UA |
| Feb 2024 | 250 | 139 | 4 | 0 | AS,OO,UA |
| Jan 2024 | 221 | 71 | 22 | 1 | AS,OO,UA |
PDX–SFO seasonal on-time pattern
Best: September (85.4%) · weakest: June (76.8%)
Strongest calendar month
September
85.4% on-time · ~275 flights/mo
Busiest calendar month
March
~292 flights/mo avg
Weakest calendar month
June
76.8% on-time · ~244 flights/mo
Cancellation Rate
1.1%
78 of 7,122 flights
Diversion Rate
0.1%
8 of 7,122 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 profileSFO - San Francisco
Full on-time, delay-cause, and seasonal performance for San Francisco, CA.
SFO on-time profileCompare the two airports
See PDX and SFO side by side on delays, cancellations, and reliability.
Compare PDX vs SFOOrigin-hub reliability standing
Mid-pack among PDX departures
From PDX, this corridor sits with 17 other 75–85% on-time routes out of 44 tracked departures, not the hub's reliability leaders (26 at ≥85%) and not the softest ( 1 below 75%). Destination: San Francisco · fleet on-time rank #2524 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to PDX–SFO.
Routes with a similar on-time rate
What the Data Says About PDX to SFO
19,485 tracked flights put the PDX to SFO pairing (Portland to San Francisco) at a 81.6% on-time rate, squarely in line with the wider network. Delays that do occur run 66.2 minutes on average. Across the 550-mile route and its 21 carriers, the trailing 24 months show 1.1% cancelled and 0.1% diverted (7,122 flights sampled).
The monthly split is wide on this route: Jan 2025 posted the strongest performance at 89% on-time, while Apr 2024 came in at just 42% - a 47-point swing worth factoring into travel timing.
On the multi-year calendar, PDX–SFO peaks in September at 85.4% on-time while March carries the heaviest traffic (~292 flights per month) ; the softest month is June at 76.8%, a 8.6-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does PDX to SFO rank among US routes by traffic? ▼
How often are flights delayed from PDX to SFO? ▼
What is the cancellation rate for PDX to SFO? ▼
How far is the flight from PDX to SFO? ▼
When is the best time to fly from PDX to SFO? ▼
Airports on this route
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–SFO data
PDX–SFO is mid-pack at 81.6% on-time; month and carrier mix move more than the corridor headline.
- Compare PDX and SFO airport profiles: delay causes and top routes differ even on the same corridor. PDX airport
- If your dates flex, September (85.4% on-time) beats June (76.8%) on this corridor. Seasonal chart
- 4 other routes post a similar 81.6% 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.
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.