San Jose (SJC) to Seattle (SEA) flights
Alaska Airlines, SkyWest Airlines, Southwest Airlines fly nonstop from Mineta San Jose International Airport to Seattle-Tacoma International Airport, with about 99 flights a week in July 2026. The 696-mile flight takes about 2h 13m gate to gate.
- Distance
- 696 mi · 1,120 km
- Flight time
- 2h 13m
- Airlines
- 3
- Seats filled
- 79%
Airlines flying SJC to SEA
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Alaska Airlines | 43 | Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737-800 | 253,472 | 2h 13m |
| SkyWest Airlines | 35 | Embraer E175 | 97,326 | 2h 16m |
| Southwest Airlines | 21 | Boeing 737-700 / MAX 7, Boeing 737 MAX 8, Boeing 737-800 | 107,057 | 2h 8m |
| Horizon AirSeasonal or ended | n/a | Embraer E175 | 2,949 | 2h 12m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SJC to SEA flight schedule
28 flight numbers flew this route in August 2026, 6 of them almost daily. The first usually leaves at 6:00am and the last at 9:38pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| WN 3295Southwest Airlines | 6:00am | 8:20am | 12 | 92% |
| AS 1314Alaska Airlines | 6:17am | 8:34am | 18 | 86% |
| AS 762Alaska Airlines | 6:17am | 8:32am | 13 | 80% |
| WN 3628Southwest Airlines | 6:35am | 8:45am | 12 | 100% |
| DL 4041Delta Air Lines · operated by SkyWest Airlines | 7:21am | 9:45am | 31 | 95% |
| WN 1663Southwest Airlines | 7:30am | 9:40am | 4 | n/a |
| AS 1304Alaska Airlines | 8:02am | 10:19am | 10 | 79% |
| AS 1426Alaska Airlines | 8:20am | 10:31am | 18 | 39% |
| AS 1311Alaska Airlines | 10:19am | 12:30pm | 31 | 90% |
| WN 389Southwest Airlines | 11:20am | 1:40pm | 4 | n/a |
| DL 3736Delta Air Lines · operated by SkyWest Airlines | 11:37am | 2:00pm | 31 | 92% |
| WN 3195Southwest Airlines | 12:55pm | 3:10pm | 12 | 83% |
| WN 3983Southwest Airlines | 1:40pm | 3:50pm | 12 | 17% |
| AS 659Alaska Airlines | 1:44pm | 3:57pm | 13 | 69% |
| AS 521Alaska Airlines | 2:16pm | 4:27pm | 18 | 75% |
| DL 1516Delta Air Lines | 2:40pm | 4:54pm | 4 | n/a |
| DL 3789Delta Air Lines · operated by SkyWest Airlines | 2:45pm | 5:00pm | 27 | 82% |
| WN 2752Southwest Airlines | 4:45pm | 6:55pm | 4 | n/a |
| AS 3391Alaska Airlines · operated by SkyWest Airlines | 4:55pm | 7:10pm | 4 | n/a |
| WN 2449Southwest Airlines | 5:00pm | 7:10pm | 8 | n/a |
| AS 1413Alaska Airlines | 5:28pm | 7:39pm | 13 | 74% |
| DL 3897Delta Air Lines · operated by SkyWest Airlines | 5:50pm | 8:10pm | 31 | 86% |
| AS 745Alaska Airlines | 5:52pm | 8:07pm | 9 | 82% |
| AS 481Alaska Airlines | 6:45pm | 9:00pm | 18 | 51% |
| WN 3297Southwest Airlines | 7:35pm | 9:50pm | 16 | 25% |
| AS 1398Alaska Airlines | 7:45pm | 10:00pm | 11 | 55% |
| DL 4100Delta Air Lines · operated by SkyWest Airlines | 8:53pm | 11:19pm | 31 | 87% |
| AS 1436Alaska Airlines | 9:38pm | 11:47pm | 12 | 68% |
Is SJC to SEA on time?
From September 2025 to August 2026, 83% of 4,461 flights arrived within 15 minutes of schedule and 0.6% were cancelled. Flights leaving around 6am were the most punctual (96%), those around 7pm the least (63%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (40%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 1,942 | 81% | 11 min | 1.2% |
| Delta Air Lines | 1,612 | 89% | 8 min | 0.2% |
| Southwest Airlines | 904 | 76% | 12 min | 0% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 6am to 7am | 384 | 96% | |
| 7am to 8am | 423 | 95% | |
| 8am to 9am | 295 | 65% | |
| 9am to 10am | 157 | 83% | |
| 10am to 11am | 249 | 86% | |
| 11am to 12pm | 467 | 90% | |
| 12pm to 1pm | 110 | 82% | |
| 1pm to 2pm | 106 | 75% | |
| 2pm to 3pm | 556 | 81% | |
| 3pm to 4pm | 216 | 86% | |
| 4pm to 5pm | 189 | 88% | |
| 5pm to 6pm | 301 | 81% | |
| 6pm to 7pm | 423 | 79% | |
| 7pm to 8pm | 276 | 63% | |
| 8pm to 9pm | 205 | 79% | |
| 9pm to 10pm | 104 | 74% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 395 | 45,047 | |
| September 2025 | 371 | 38,264 | |
| October 2025 | 392 | 36,426 | |
| November 2025 | 375 | 36,934 | |
| December 2025 | 351 | 36,053 | |
| January 2026 | 332 | 30,610 | |
| February 2026 | 339 | 34,624 | |
| March 2026 | 324 | 34,659 | |
| April 2026 | 305 | 31,671 | |
| May 2026 | 375 | 39,530 | |
| June 2026 | 409 | 47,885 | |
| July 2026 | 437 | 49,663 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.