Route
PDX → SAN
Portland International Airport San Diego International Airport
Alerts at PDX and SAN
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Watch Ground Delay Program SAN
Ground Delay Program at San Diego International Airport (SAN): Average 37 minutes, up to 1 hour and 11 minutes
Reason: airport volume
Airport status
How punctual is this route?
- On-time arrivals
- 74.3%
- Less than 15 minutes late
- Cancelled
- 0.7%
- Of scheduled flights
- Average delay when late
- 44 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,833
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 44%
- Late-arriving aircraft 28%
- Airline (crew, maintenance, cleaning) 27%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 86.8% | 130 |
| October 2025 | 73.0% | 143 |
| November 2025 | 69.0% | 145 |
| December 2025 | 67.7% | 157 |
| January 2026 | 79.2% | 132 |
| February 2026 | 83.2% | 119 |
| March 2026 | 85.4% | 172 |
| April 2026 | 90.2% | 165 |
| May 2026 | 83.9% | 155 |
| June 2026 | 68.2% | 150 |
| July 2026 | 62.3% | 156 |
| August 2026 | 52.4% | 209 |
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 |
|---|---|---|---|---|
| Alaska Airlines | 1,586 | 75.1% | 0.8% | 44 min |
| Southwest Airlines | 217 | 66.4% | 0.0% | 44 min |
| SkyWest Airlines | 30 | 90.0% | 0.0% | 78 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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AS1312
30% late · 306 flights
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AS1394
20% late · 298 flights
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AS577
23% late · 236 flights
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AS667
25% late · 209 flights
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AS721
22% late · 123 flights
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AS369
45% late · 69 flights
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WN3555
12% late · 58 flights
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AS1122
24% late · 55 flights
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AS1204
13% late · 55 flights
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AS1074
15% late · 54 flights
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AS1296
33% late · 54 flights
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WN2809
51% late · 43 flights
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AS724
12% late · 35 flights
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WN3353
15% late · 33 flights
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OO3306
7% late · 28 flights
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WN3137
61% late · 28 flights
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AS179
48% late · 26 flights
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AS1162
16% late · 25 flights
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AS669
12% late · 24 flights
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