Route
PDX → SFO
Portland International Airport San Francisco International Airport
Alerts at PDX and SFO
How punctual is this route?
- On-time arrivals
- 66.8%
- Less than 15 minutes late
- Cancelled
- 0.4%
- Of scheduled flights
- Average delay when late
- 60 min
- Flights arriving 15+ minutes late
- Flights tracked
- 3,495
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 65%
- Late-arriving aircraft 22%
- Airline (crew, maintenance, cleaning) 13%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 80.2% | 329 |
| October 2025 | 74.9% | 343 |
| November 2025 | 76.4% | 280 |
| December 2025 | 73.4% | 238 |
| January 2026 | 83.6% | 253 |
| February 2026 | 71.5% | 256 |
| March 2026 | 88.9% | 288 |
| April 2026 | 57.4% | 300 |
| May 2026 | 47.7% | 299 |
| June 2026 | 53.3% | 289 |
| July 2026 | 44.2% | 294 |
| August 2026 | 54.0% | 326 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| United Airlines | 1,729 | 62.9% | 0.3% | 61 min |
| Alaska Airlines | 1,403 | 67.4% | 0.4% | 57 min |
| SkyWest Airlines | 363 | 82.8% | 0.6% | 79 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
AS526
43% late · 305 flights
-
UA2615
48% late · 265 flights
-
AS1393
35% late · 230 flights
-
AS236
29% late · 228 flights
-
AS128
20% late · 199 flights
-
UA776
13% late · 150 flights
-
OO5611
11% late · 116 flights
-
UA2818
66% late · 103 flights
-
UA1896
7% late · 102 flights
-
UA1660
43% late · 92 flights
-
UA1164
2% late · 83 flights
-
UA1596
43% late · 82 flights
-
UA2216
19% late · 76 flights
-
AS504
45% late · 69 flights
-
UA2332
18% late · 65 flights
-
UA751
63% late · 65 flights
-
AS1445
53% late · 60 flights
-
UA2114
52% late · 56 flights
-
AS836
13% late · 55 flights
-
AS1457
30% late · 50 flights
-
UA361
17% late · 48 flights
-
UA1613
62% late · 47 flights
-
AS1295
18% late · 45 flights
-
OO5763
13% late · 45 flights
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