Route
SAN → PDX
San Diego International Airport Portland International Airport
Alerts at SAN and PDX
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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
- 82.5%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 57 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,838
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 61%
- Airline (crew, maintenance, cleaning) 29%
- Air traffic control & airport 8%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 87.6% | 130 |
| October 2025 | 86.7% | 145 |
| November 2025 | 80.7% | 145 |
| December 2025 | 81.9% | 156 |
| January 2026 | 81.2% | 136 |
| February 2026 | 90.7% | 118 |
| March 2026 | 91.2% | 172 |
| April 2026 | 91.4% | 164 |
| May 2026 | 87.1% | 155 |
| June 2026 | 67.8% | 151 |
| July 2026 | 78.4% | 156 |
| August 2026 | 70.8% | 210 |
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 | 1,591 | 85.5% | 1.0% | 62 min |
| Southwest Airlines | 217 | 60.8% | 0.0% | 42 min |
| SkyWest Airlines | 30 | 86.7% | 0.0% | 76 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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AS1392
20% late · 303 flights
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AS1402
17% late · 302 flights
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AS576
12% late · 271 flights
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AS399
7% late · 267 flights
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AS729
14% late · 132 flights
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WN1994
34% late · 58 flights
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AS1294
22% late · 55 flights
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AS974
9% late · 55 flights
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AS1073
4% late · 54 flights
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AS1297
15% late · 54 flights
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WN4908
63% late · 52 flights
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WN4627
18% late · 33 flights
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AS178
40% late · 30 flights
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OO3305
11% late · 28 flights
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AS542
16% late · 20 flights
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