Route guide

San Diego to San Francisco (SAN-SFO): Nonstop Upgrade & Award Space

Alaska Airlines, Inc., United Airlines, Frontier Airlines, and Southwest Airlines fly nonstop between San Diego (SAN) and San Francisco (SFO), roughly 129 times a week. Because so many carriers compete on this route, premium seats turn over daily, and upgrade or award space can open and close within hours. 2LNR tracks confirmed availability on every SAN to SFO departure, so you know which flights have space before you book.

Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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129
Nonstop flights a week
447 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every SAN to SFO departure

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Open the calendar for San Diego to San Francisco to see which departures have real space, or watch the route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each SAN to SFO departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See SAN to SFO on the interactive route map, with schedules, connections, and route statistics.

Airlines flying San Diego to San Francisco nonstop

Carriers operating SAN to SFO nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

  • Alaska Airlines, Inc.
  • United Airlines
  • Frontier Airlines
  • Southwest Airlines
See SAN to SFO on the interactive map →

Frequently asked questions about SAN to SFO

How far is San Francisco from San Diego?
SAN to SFO covers about 447 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from SAN to SFO?
Alaska Airlines, Inc., United Airlines, Frontier Airlines, and Southwest Airlines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on all four of them.
How many flights a week are there from SAN to SFO?
About 129 nonstop flights a week run between San Diego and San Francisco in the current schedule, operated by Alaska Airlines, Inc., United Airlines, Frontier Airlines, and Southwest Airlines. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on SAN to SFO?
Open the SAN to SFO calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the San Diego to San Francisco route, and 2LNR will notify you when space opens. It's free to start.

Never miss SAN to SFO upgrade or award space

Track confirmed availability, set alerts, and book with confidence. Free to start, no credit card required.

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