UA2100 Flight Status United Airlines: St. Louis to San Francisco (UAL2100)
UA 2100 St. Louis to San Francisco Flight Status
Not scheduled today. Latest flight: September 23rd, 2026 ; recent history is in the table below.
- This flight continues to Kalispell (FCA): UA2100 San Francisco to Kalispell departs at 12:00 local time on Sep 23.
UA 2100 Flight Status & Schedule United Airlines St. Louis to San Francisco
| Date | From | To | Departure | Arrival | Status | Details |
|---|---|---|---|---|---|---|
| Sep 23 | STL | SFO | 10:03 | 11:53 | Delayed | Track > |
| Sep 21 | STL | SFO | 09:44 | 11:35 | Landed Late | Track > |
| Sep 20 | STL | SFO | 11:16 | 10:57 | En-Route | Track > |
| Sep 18 | STL | SFO | 11:48 | 13:35 | Delayed | Track > |
| Sep 17 | STL | SFO | 09:38 | 11:25 | Landed Late | Track > |
| Sep 16 | STL | SFO | 10:08 | 12:01 | Delayed | Track > |
| Sep 14 | STL | SFO | 09:00 | 10:56 | Landed | Track > |
| Sep 13 | STL | SFO | 09:18 | 11:15 | Landed | Track > |
| Sep 11 | STL | SFO | 10:09 | 12:06 | Delayed | Track > |
| Sep 10 | STL | SFO | 08:59 | 11:08 | Landed | Track > |
United Airlines operates UA 2100 from St. Louis to San Francisco, a 2,786 km (1,731 mi) trip. The timetable allows 4 h 22 min, but the flight usually takes about 3 h 55 min, so it often makes up time. It is not flying today; the last flight was scheduled on 23 September 2026.
About UA 2100
- Distance
- 2,786 km (1,731 mi)
- Typical flight time
- 3 h 55 min
- On time
- 3 of the last 5
- Average delay when late
- 27 min
- Usually departs from
- Terminal 1
UA 2100 FAQ
- How long is the UA2100 flight?
- The timetable allows 4 h 22 min. St. Louis to San Francisco is 2,786 km (1,731 mi).
- How often is UA2100 late?
- 2 of the last 5 flights arrived 15 or more minutes late; when late, by 27 minutes on average.
- Which terminal does UA2100 use?
- It usually leaves from Terminal 1 at St. Louis Lambert International Airport (STL). Check the flight card above for today's terminal and gate.
- What other flight numbers does UA2100 have?
- Also listed as UAL2100 (United Airlines' ICAO code) and UA 2100.
UA2100 and St. Louis STL to San Francisco SFO Flights
Flight UA2100 is code-shared by 2 airlines using the flight numbers NZ9700, OZ6344
Other flights departing from St. Louis STL: UA502, WN3827, WN3892, WN4584
Other flights arriving at San Francisco SFO: UA1205, UA2319
All flights connecting St. Louis STL to San Francisco SFO.