Seattle (SEA) to San Jose (SJC)
Flight time
≈ 2h 12m
Bearing
178° S
Seattle (SEA) to San Jose (SJC) is 697 miles (1,122 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies SEA–SJC
US DOT T-100 · filed dataIn April 2026, Alaska Airlines operated the most departures, one of 4 carriers flying nonstop SEA–SJC; the Embraer E175 was the most common aircraft at 39% of departures; flights ran 81% full.
Departures
610
April 2026
Seats
79,145
both directions
Passengers
63,962
both directions
Load factor
80.8%
passengers ÷ seats
Who flies SEA–SJC?
Alaska Airlines operated the most nonstop SEA–SJC departures in April 2026 (263), one of 4 carriers on the route.
- AS
Alaska Airlines
263 departures · 44,903 seats
Share of departures43.1%79.5%
Load
- OO
SkyWest Airlines
240 departures · 17,406 seats
Share of departures39.3%87.8%
Load
- WN
Southwest Airlines
106 departures · 16,650 seats
Share of departures17.4%78.1%
Load
- SY
Sun Country Airlines
1 departures · 186 seats
Share of departures0.2%0.0%
Load
What plane flies SEA–SJC?
In April 2026, the Embraer E175 flew 39% of SEA–SJC departures — more than any other aircraft type.
- Embraer E175
240 departures · 87.8% load
39.3% - Boeing 737-800
116 departures · 77.8% load
19.0% - Boeing 737 MAX 9
82 departures · 77.8% load
13.4% - Boeing 737-900ER
70 departures · 84.5% load
11.5% - Boeing 737 MAX 8
52 departures · 74.2% load
8.5% - Boeing 737-700
50 departures · 79.6% load
8.2%
How has SEA–SJC traffic changed?
Nonstop SEA–SJC departures fell from 777 in May 2025 to 610 in April 2026.
Monthly nonstop SEA–SJC traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
777 departures · 78,078 passengers
74.8%
Load
June 2025
815 departures · 91,312 passengers
81.0%
Load
July 2025
835 departures · 95,911 passengers
81.9%
Load
August 2025
793 departures · 92,631 passengers
84.6%
Load
September 2025
745 departures · 78,179 passengers
75.4%
Load
October 2025
786 departures · 74,095 passengers
72.9%
Load
November 2025
750 departures · 72,302 passengers
75.3%
Load
December 2025
706 departures · 72,269 passengers
79.7%
Load
January 2026
666 departures · 62,933 passengers
71.0%
Load
February 2026
694 departures · 71,182 passengers
74.3%
Load
March 2026
649 departures · 68,899 passengers
81.1%
Load
April 2026
610 departures · 63,962 passengers
80.8%
Load
By direction
The DOT files each direction separately — they rarely match.
SEA → SJC
81.8% full
305 departures · 32,291 passengers
SJC → SEA
79.8% full
305 departures · 31,671 passengers
Nonstop SEA–SJC traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
San Jose
US
Norman Y. Mineta San Jose International Airport
Coordinates
37.36°N, 121.93°W
Hemisphere
N · W
Frequently asked
How far is Seattle (SEA) from San Jose (SJC)?
SEA to SJC is 697 miles (1,122 km / 606 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from SEA to SJC?
A nonstop covers the 697-mile great-circle distance in roughly 2h 12m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies SEA–SJC?
In April 2026, the Embraer E175 flew the largest share of departures (39.3%), followed by the Boeing 737-800 (19.0%).
What mileage do I earn flying SEA–SJC?
Distance-based programs credit off the 697-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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