Seattle (SEA) to San Jose (SJC) flights
Alaska Airlines, SkyWest Airlines, Southwest Airlines fly nonstop from Seattle-Tacoma International Airport to Mineta San Jose International Airport, with about 99 flights a week in July 2026. The 696-mile flight takes about 2h 11m gate to gate.
- Distance
- 696 mi · 1,120 km
- Flight time
- 2h 11m
- Airlines
- 3
- Seats filled
- 80%
Airlines flying SEA to SJC
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Alaska Airlines | 43 | Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737-800 | 258,657 | 2h 9m |
| SkyWest Airlines | 35 | Embraer E175 | 97,965 | 2h 17m |
| Southwest Airlines | 21 | Boeing 737-700 / MAX 7, Boeing 737 MAX 8, Boeing 737-800 | 103,398 | 2h 7m |
| Horizon AirSeasonal or ended | n/a | Embraer E175 | 2,840 | 2h 9m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SEA to SJC flight schedule
27 flight numbers flew this route in August 2026, 6 of them almost daily. The first usually leaves at 7:07am and the last at 9:43pm. 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) |
|---|---|---|---|---|
| AS 1448Alaska Airlines | 7:07am | 9:23am | 18 | 97% |
| AS 1341Alaska Airlines | 7:08am | 9:25am | 10 | 92% |
| DL 3736Delta Air Lines · operated by SkyWest Airlines | 8:30am | 10:57am | 31 | 91% |
| WN 4516Southwest Airlines | 9:25am | 11:40am | 12 | 100% |
| AS 658Alaska Airlines | 10:28am | 12:48pm | 13 | 54% |
| AS 335Alaska Airlines | 11:08am | 1:20pm | 18 | 72% |
| DL 1516Delta Air Lines | 11:10am | 1:26pm | 4 | n/a |
| DL 3789Delta Air Lines · operated by SkyWest Airlines | 11:35am | 2:05pm | 27 | 84% |
| WN 883Southwest Airlines | 11:50am | 2:20pm | 12 | 25% |
| AS 3390Alaska Airlines · operated by SkyWest Airlines | 1:55pm | 4:15pm | 4 | n/a |
| AS 1366Alaska Airlines | 2:18pm | 4:32pm | 13 | 80% |
| WN 3601Southwest Airlines | 2:20pm | 4:40pm | 4 | n/a |
| DL 3897Delta Air Lines · operated by SkyWest Airlines | 2:40pm | 5:02pm | 31 | 82% |
| AS 657Alaska Airlines | 2:42pm | 4:56pm | 9 | 75% |
| WN 1536Southwest Airlines | 3:40pm | 5:55pm | 16 | 19% |
| AS 319Alaska Airlines | 3:42pm | 5:53pm | 18 | 45% |
| AS 521Alaska Airlines | 4:32pm | 6:45pm | 13 | 86% |
| WN 3540Southwest Airlines | 4:35pm | 6:55pm | 8 | n/a |
| AS 539Alaska Airlines | 5:45pm | 8:00pm | 18 | 73% |
| AS 1303Alaska Airlines | 5:46pm | 8:00pm | 13 | 80% |
| DL 4100Delta Air Lines · operated by SkyWest Airlines | 5:47pm | 8:13pm | 31 | 84% |
| WN 2826Southwest Airlines | 6:35pm | 8:50pm | 8 | n/a |
| WN 4517Southwest Airlines | 7:30pm | 9:45pm | 20 | 70% |
| AS 1310Alaska Airlines | 8:06pm | 10:21pm | 18 | 77% |
| DL 3956Delta Air Lines · operated by SkyWest Airlines | 8:30pm | 10:50pm | 31 | 79% |
| AS 1444Alaska Airlines | 8:43pm | 10:57pm | 11 | 82% |
| AS 523Alaska Airlines | 9:43pm | 11:59pm | 12 | 50% |
Is SEA to SJC on time?
From September 2025 to August 2026, 80% of 4,464 flights arrived within 15 minutes of schedule and 0.6% were cancelled. Flights leaving around 7am were the most punctual (92%), those around 8pm the least (68%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (44%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 1,944 | 80% | 10 min | 1% |
| Delta Air Lines | 1,612 | 86% | 9 min | 0.2% |
| Southwest Airlines | 903 | 71% | 15 min | 0.2% |
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 |
|---|---|---|---|
| 7am to 8am | 405 | 92% | |
| 8am to 9am | 452 | 92% | |
| 9am to 10am | 154 | 89% | |
| 10am to 11am | 206 | 83% | |
| 11am to 12pm | 514 | 75% | |
| 12pm to 1pm | 237 | 78% | |
| 1pm to 2pm | 157 | 80% | |
| 2pm to 3pm | 311 | 83% | |
| 3pm to 4pm | 342 | 71% | |
| 4pm to 5pm | 255 | 85% | |
| 5pm to 6pm | 474 | 78% | |
| 6pm to 7pm | 110 | 75% | |
| 7pm to 8pm | 319 | 79% | |
| 8pm to 9pm | 365 | 68% | |
| 9pm to 10pm | 90 | 62% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 398 | 47,584 | |
| September 2025 | 371 | 39,521 | |
| October 2025 | 393 | 37,669 | |
| November 2025 | 375 | 35,368 | |
| December 2025 | 355 | 36,216 | |
| January 2026 | 331 | 31,933 | |
| February 2026 | 342 | 35,632 | |
| March 2026 | 325 | 34,240 | |
| April 2026 | 304 | 32,291 | |
| May 2026 | 374 | 38,088 | |
| June 2026 | 411 | 45,214 | |
| July 2026 | 438 | 49,930 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.