King County International Airport - Boeing Field
Seattle, United StatesBFI / KBFI
Regional airport · 63 direct destinations · 2 runways · longest runway 10,007 ft
48 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Seattle → San Jose
BFI
SeattleKing County International Airport - Boeing Field
SeattleKing County International Airport - Boeing FieldSJCSan JoseMineta San Jose International Airport
San JoseMineta San Jose International Airport- Distance
- 703 mi
- Estimated flight time
- ~1h 55m
Same local time in Seattle and San Jose.
Observed nonstop
How often does this route fly?
Frequency
Daily at most
On average around 1.25 flights a day, observed from October 2025 to September 2026.
- 1.3
- flights per day
- 2
- busiest month · Apr
- 1
- quietest month · Oct
- 1 hr 44 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 1Jan2026
- 1.5Feb
- 1Mar
- 2Apr
- 2May
- 2Jun
- 2Jul
- 1Aug
- 2Sep
- 1Oct2025
- 1Nov
- 1Dec
In December 2025 we saw less traffic at Seattle in general than usual; compare that month with care.
Airlines
Who flies it
UPS Airlinesnow and then
Through the day
Departure times
Local time in Seattle. Most departures between 13:00 and 16:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 1.5Mon
- 1.5Tue
- 1.2Wed
- 1.9Thu
- 1.2Fri
- 1.1Sat
- 1.1Sun
Fleet
Aircraft observed
- Bombardier Challenger 350CL359%
- Embraer Phenom 300E55P8%
- Cessna Citation CJ4C25C8%
- Cessna Citation LongitudeC7007%
- Cessna Citation LatitudeC68A6%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 1 | 32 | – |
| February 2026 | 1.5 | 47 | – |
| March 2026 | 1 | 41 | – |
| April 2026 | 2 | 31 | – |
| May 2026 | 2 | 38 | – |
| June 2026 | 2 | 51 | – |
| July 2026 | 2 | 61 | – |
| August 2026 | 1 | 39 | – |
| September 2026 | 2 | 55 | – |
| October 2025 | 1 | 39 |
|
| November 2025 | 1 | 24 | – |
| December 2025 | 1 | 24 | – |
Airlines observed on this route
From observed callsign routes on BFI-SJC - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Seattle: 63.
- Direct destinations observed from San Jose: 59.
The airports on this route
Mineta San Jose International Airport
San Jose, United StatesSJC / KSJC
Major airport · 59 direct destinations · 2 runways · longest runway 11,001 ft
63 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
SEA SJCSeattle–Tacoma International AirportSeattle is about 6 mi from Seattle.View route →PAE SJCSeattle Paine Field International AirportEverett is about 26 mi from Seattle.View route →BFI OAKOakland San Francisco Bay AirportOakland is about 29 mi from San Jose.View route →BFI SFOSan Francisco International AirportSan Francisco is about 30 mi from San Jose.View route →
About the route from Seattle to San Jose
The observed direct connection between King County International Airport - Boeing Field (BFI) and Mineta San Jose International Airport (SJC) covers approximately 703 mi. The estimated flight time is around 1h 55m. UPS Airlines has been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Seattle from San Jose by air?
- The great-circle distance between King County International Airport - Boeing Field and Mineta San Jose International Airport is approximately 703 mi.
- How long is the flight from Seattle to San Jose?
- Based on the distance, the estimated flight time is about 1h 55m. This is an estimate, not a schedule.
- Is there a direct connection from Seattle to San Jose?
- Yes, a direct connection between BFI and SJC has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: UPS Airlines.
- How often is there a flight from Seattle to San Jose?
- On average around 1.25 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 482 observed flights. Mainly UPS Airlines. That is an observation, not a timetable.
- What is the current time difference between Seattle and San Jose?
- Same local time in Seattle and San Jose.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.