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
Filed traffic dataIn July 2026, Alaska Airlines operated the most departures, one of 3 carriers flying nonstop SEA–SJC; the Embraer E175 was the most common aircraft at 35% of departures; flights ran 85% full.
Departures
875
July 2026
Seats
117,078
both directions
Passengers
99,593
both directions
Load factor
85.1%
seat-miles filled
Who flies SEA–SJC?
Alaska Airlines operated the most nonstop SEA–SJC departures in July 2026 (381), one of 3 carriers on the route.
- AS
381 departures · 65,898 seats
Share of departures43.5%85.7%
Load
- OO
310 departures · 22,780 seats
Share of departures35.4%88.4%
Load
- WN
184 departures · 28,400 seats
Share of departures21.0%81.1%
Load
What plane flies SEA–SJC?
In July 2026, the Embraer E175 flew 35% of SEA–SJC departures — more than any other aircraft type.
- Embraer E175
310 departures · 88.4% load
35.4% - Boeing 737-900ER
138 departures · 86.7% load
15.8% - Boeing 737 MAX 9
131 departures · 82.3% load
15.0% - Boeing 737-800
110 departures · 85.1% load
12.6% - Boeing 737-700
100 departures · 82.2% load
11.4% - Boeing 737 MAX 8
86 departures · 84.3% load
9.8%
How has SEA–SJC traffic changed?
Nonstop SEA–SJC departures rose from 793 in August 2025 to 875 in July 2026.
Monthly nonstop SEA–SJC traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
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
May 2026
749 departures · 77,618 passengers
82.5%
Load
June 2026
822 departures · 93,099 passengers
86.9%
Load
July 2026
875 departures · 99,593 passengers
85.1%
Load
By direction
Each direction is filed separately — they rarely match.
SEA → SJC
85.8% full
438 departures · 49,930 passengers
SJC → SEA
84.4% full
437 departures · 49,663 passengers
Nonstop SEA–SJC traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 2026; filings from 2025. Public domain (US Government work). Load factor is RPM ÷ ASM (revenue passenger-miles ÷ available seat-miles).
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 July 2026, the Embraer E175 flew the largest share of departures (35.4%), followed by the Boeing 737-900ER (15.8%).
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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