Route guide

Sunnyside to San Francisco (FAT-SFO): Nonstop Upgrade & Award Space

United Airlines flies nonstop between Sunnyside (FAT) and San Francisco (SFO), roughly 26 times a week. With United Airlines operating this route so often, premium seats still turn over daily, and upgrade or award space can open and close within hours. 2LNR tracks confirmed availability on every FAT 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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26
Nonstop flights a week
158 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every FAT 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 Sunnyside 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 FAT 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 FAT to SFO on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Sunnyside to San Francisco nonstop

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

  • United Airlines
See FAT to SFO on the interactive map →

Frequently asked questions about FAT to SFO

How far is San Francisco from Sunnyside?
FAT to SFO covers about 158 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from FAT to SFO?
United Airlines is currently the only airline flying FAT to SFO nonstop. 2LNR tracks confirmed upgrade and award space on every United Airlines departure.
How many flights a week are there from FAT to SFO?
About 26 nonstop flights a week run between Sunnyside and San Francisco in the current schedule, operated by United Airlines. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on FAT to SFO?
Open the FAT to SFO calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Sunnyside to San Francisco route, and 2LNR will notify you when space opens. It's free to start.

Never miss FAT to SFO upgrade or award space

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