San Diego (SAN) to San Francisco (SFO)
Flight time
≈ 1h 42m
Bearing
321° NW
San Diego (SAN) to San Francisco (SFO) is 447 miles (719 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies SAN–SFO
Filed traffic dataIn July 2026, United Airlines operated the most departures, one of 8 carriers flying nonstop SAN–SFO; the Embraer E175 was the most common aircraft at 24% of departures; flights ran 74% full.
Departures
1,351
July 2026
Seats
194,867
both directions
Passengers
143,716
both directions
Load factor
73.8%
RPM ÷ ASM
Who flies SAN–SFO?
United Airlines operated the most nonstop SAN–SFO departures in July 2026 (508), one of 8 carriers on the route.
- UA
508 departures · 87,292 seats
Share of departures37.6%73.5%
Load
- WN
397 departures · 61,685 seats
Share of departures29.4%70.7%
Load
- OO
268 departures · 20,368 seats
Share of departures19.8%83.1%
Load
- AS
60 departures · 10,196 seats
Share of departures4.4%64.6%
Load
- F9
58 departures · 10,776 seats
Share of departures4.3%78.5%
Load
- QX
58 departures · 4,408 seats
Share of departures4.3%87.5%
Load
- AC
Air Canada
1 departures · 70 seats
Share of departures0.1%87.1%
Load
- DL
1 departures · 72 seats
Share of departures0.1%93.1%
Load
What plane flies SAN–SFO?
In July 2026, the Embraer E175 flew 24% of SAN–SFO departures — more than any other aircraft type.
- Embraer E175
326 departures · 83.9% load
24.1% - Boeing 737-800
325 departures · 72.2% load
24.1% - Boeing 737-700
205 departures · 74.9% load
15.2% - Boeing 737-900ER
187 departures · 74.6% load
13.8% - Boeing 737 MAX 8
175 departures · 68.9% load
13.0% - Boeing 737 MAX 9
73 departures · 63.2% load
5.4% - Airbus A320neo
52 departures · 77.4% load
3.9% - Airbus A321neo
4 departures · 89.5% load
0.3% - Airbus A320
3 departures · 85.6% load
0.2% - Boeing 757-200
1 departures · 93.1% load
0.1%
How has SAN–SFO traffic changed?
Nonstop SAN–SFO departures rose from 1,186 in August 2025 to 1,351 in July 2026.
Monthly nonstop SAN–SFO traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
August 2025
1,186 departures · 144,350 passengers
86.8%
Load
September 2025
1,144 departures · 133,657 passengers
84.3%
Load
October 2025
1,315 departures · 157,003 passengers
82.7%
Load
November 2025
1,173 departures · 138,793 passengers
82.8%
Load
December 2025
1,156 departures · 135,580 passengers
84.7%
Load
January 2026
1,142 departures · 114,966 passengers
72.2%
Load
February 2026
1,029 departures · 110,258 passengers
78.8%
Load
March 2026
1,119 departures · 129,355 passengers
83.9%
Load
April 2026
1,147 departures · 129,179 passengers
78.5%
Load
May 2026
1,200 departures · 129,285 passengers
75.8%
Load
June 2026
1,266 departures · 137,055 passengers
75.9%
Load
July 2026
1,351 departures · 143,716 passengers
73.8%
Load
By direction
Each direction is filed separately — they rarely match.
SFO → SAN
72.9% full
677 departures · 71,633 passengers
SAN → SFO
74.7% full
674 departures · 72,083 passengers
Nonstop SAN–SFO 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).
The airports
Frequently asked
How far is San Diego (SAN) from San Francisco (SFO)?
SAN to SFO is 447 miles (719 km / 388 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from SAN to SFO?
A nonstop covers the 447-mile great-circle distance in roughly 1h 42m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies SAN–SFO?
In July 2026, the Embraer E175 flew the largest share of departures (24.1%), followed by the Boeing 737-800 (24.1%).
What mileage do I earn flying SAN–SFO?
Distance-based programs credit off the 447-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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