San Diego (SAN) to San Jose (SJC)
Flight time
≈ 1h 38m
Bearing
321° NW
San Diego (SAN) to San Jose (SJC) is 417 miles (671 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies SAN–SJC
US DOT T-100 · filed dataIn April 2026, Southwest Airlines operated the most departures, one of 5 carriers flying nonstop SAN–SJC; the Embraer E175 was the most common aircraft at 35% of departures; flights ran 72% full.
Departures
975
April 2026
Seats
126,436
both directions
Passengers
91,104
both directions
Load factor
72.1%
passengers ÷ seats
Who flies SAN–SJC?
Southwest Airlines operated the most nonstop SAN–SJC departures in April 2026 (632), one of 5 carriers on the route.
- WN
Southwest Airlines
632 departures · 99,732 seats
Share of departures64.8%72.3%
Load
- OO
SkyWest Airlines
275 departures · 20,900 seats
Share of departures28.2%71.1%
Load
- QX
Horizon Air
62 departures · 4,712 seats
Share of departures6.4%75.2%
Load
- AS
Alaska Airlines
3 departures · 534 seats
Share of departures0.3%96.1%
Load
- SY
Sun Country Airlines
3 departures · 558 seats
Share of departures0.3%15.6%
Load
What plane flies SAN–SJC?
In April 2026, the Embraer E175 flew 35% of SAN–SJC departures — more than any other aircraft type.
- Embraer E175
337 departures · 71.8% load
34.6% - Boeing 737-700
286 departures · 75.7% load
29.3% - Boeing 737 MAX 8
219 departures · 70.5% load
22.5% - Boeing 737-800
130 departures · 68.1% load
13.3% - Boeing 737 MAX 9
2 departures · 95.8% load
0.2% - Boeing 737-900ER
1 departures · 96.6% load
0.1%
How has SAN–SJC traffic changed?
Nonstop SAN–SJC departures rose from 965 in May 2025 to 975 in April 2026.
Monthly nonstop SAN–SJC traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
965 departures · 94,521 passengers
74.2%
Load
June 2025
944 departures · 98,247 passengers
78.7%
Load
July 2025
938 departures · 97,120 passengers
78.5%
Load
August 2025
909 departures · 99,393 passengers
81.7%
Load
September 2025
839 departures · 85,106 passengers
75.5%
Load
October 2025
890 departures · 93,116 passengers
76.0%
Load
November 2025
925 departures · 90,051 passengers
77.1%
Load
December 2025
920 departures · 93,436 passengers
80.0%
Load
January 2026
805 departures · 71,562 passengers
69.0%
Load
February 2026
812 departures · 77,127 passengers
74.0%
Load
March 2026
953 departures · 89,792 passengers
74.4%
Load
April 2026
975 departures · 91,104 passengers
72.1%
Load
By direction
The DOT files each direction separately — they rarely match.
SAN → SJC
71.1% full
488 departures · 45,183 passengers
SJC → SAN
73.0% full
487 departures · 45,921 passengers
Nonstop SAN–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 San Diego (SAN) from San Jose (SJC)?
SAN to SJC is 417 miles (671 km / 363 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from SAN to SJC?
A nonstop covers the 417-mile great-circle distance in roughly 1h 38m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies SAN–SJC?
In April 2026, the Embraer E175 flew the largest share of departures (34.6%), followed by the Boeing 737-700 (29.3%).
What mileage do I earn flying SAN–SJC?
Distance-based programs credit off the 417-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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