Route
SAN → SEA
San Diego International Airport Seattle–Tacoma International Airport
Alerts at SAN and SEA
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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
- 81.1%
- Less than 15 minutes late
- Cancelled
- 1.4%
- Of scheduled flights
- Average delay when late
- 69 min
- Flights arriving 15+ minutes late
- Flights tracked
- 4,646
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 54%
- Airline (crew, maintenance, cleaning) 30%
- Air traffic control & airport 15%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 85.1% | 388 |
| October 2025 | 82.4% | 348 |
| November 2025 | 79.0% | 320 |
| December 2025 | 77.1% | 355 |
| January 2026 | 86.7% | 334 |
| February 2026 | 92.1% | 305 |
| March 2026 | 79.4% | 388 |
| April 2026 | 88.5% | 408 |
| May 2026 | 84.0% | 428 |
| June 2026 | 75.6% | 436 |
| July 2026 | 77.2% | 457 |
| August 2026 | 71.2% | 479 |
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 | 2,727 | 79.5% | 1.7% | 65 min |
| Delta Air Lines | 1,710 | 86.6% | 1.1% | 83 min |
| Southwest Airlines | 208 | 56.5% | 0.0% | 53 min |
| SkyWest Airlines | 1 | 0.0% | 0.0% | 28 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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DL2530
9% late · 365 flights
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DL2508
10% late · 349 flights
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DL2572
15% late · 348 flights
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DL2533
19% late · 347 flights
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DL2613
16% late · 268 flights
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AS574
22% late · 237 flights
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AS622
19% late · 230 flights
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AS685
18% late · 205 flights
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AS1368
18% late · 187 flights
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AS709
11% late · 176 flights
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AS683
27% late · 168 flights
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AS652
12% late · 113 flights
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AS1373
7% late · 70 flights
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AS1381
45% late · 70 flights
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AS512
15% late · 70 flights
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AS1308
33% late · 69 flights
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AS465
32% late · 69 flights
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AS1431
31% late · 68 flights
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AS417
35% late · 68 flights
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AS1473
8% late · 64 flights
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AS475
38% late · 62 flights
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AS1309
2% late · 61 flights
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WN4769
48% late · 60 flights
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AS753
26% late · 59 flights
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