United Airlines UA2123 Denver International (DEN) → San Francisco International (SFO) — September 10, 2026

One way · Economy · 1 adult · price per person

Last observed price for Thursday, September 10, 2026: United Airlines UA2123, from Denver International (DEN) to San Francisco International (SFO), departs 9:09 PM, arrives 10:55 PM, direct, 2h 46m, $493 per person. Price found in an Aviasales search on September 9, 2026 and read by AirSource on September 10, 2026, 20:48 UTC: it is not guaranteed and is confirmed on Aviasales at booking time.

Observation for flight UA2123 on September 10, 2026

United Airlines UA2123

Direct · Denver International (DEN) → San Francisco International (SFO)

Direct

9:09 PM

Thu, Sep 10

Denver International (DEN)

2h 46m

direct

10:55 PM

Thu, Sep 10

San Francisco International (SFO)

Airline: United Airlines (UA)
Flight: UA2123
Departure: Denver International (DEN) · September 10, 2026 · 9:09 PM local time (UTC-6)
Arrival: San Francisco International (SFO) · September 10, 2026 · 10:55 PM local time (UTC-7)
Stops: Direct (no plane change, as stated by the source; it can include a stop)
Duration: 2h 46m
Last observed price: $493 per person, one way
Observed: Price and fare conditions found in an Aviasales search on September 9, 2026 · read by AirSource on September 10, 2026, 20:48 UTC · more than 48 hours ago