Apparatus

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flight_takeoff Flight

UAL2157

Operated by United Airlines

Live map

Live map filtered to UAL2157. Shown when the flight is currently airborne.

Route airports View route page →

Departure

SEA KSEA VFR

Seattle–Tacoma International Airport

Seattle, US

Local time
06:10 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
433 ft
Coordinates
47.4479, -122.3103

cloud Weather

Wind
150° / 5 kt
Visibility
10 SM
Ceiling
BKN 7,000 ft
Temp / Dew
8°C / 3°C
Altimeter
30.14 inHg

Obs: 2026-10-13T11:53:00.000Z

Raw METAR / TAF 
METAR KSEA 131153Z 15005KT 10SM BKN070 08/03 A3014 RMK AO2 RAE13 SLP214 P0000 60000 T00830033 10100 20083 53006

TAF KSEA 131120Z 1312/1418 14006KT P6SM BKN090 FM131800 18005KT P6SM OVC070 FM132300 23005KT P6SM OVC070 FM140400 19004KT P6SM SCT025 OVC040 FM140900 17006KT P6SM OVC025 FM141500 18005KT P6SM SCT008 OVC015

flight Live Traffic

flight_takeoff 153 Departures
flight_land 197 Arrivals

Arrival

SFO KSFO VFR

San Francisco International Airport

San Francisco, US

Local time
06:10 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
220° / 3 kt
Visibility
10 SM
Ceiling
FEW 900 ft
Temp / Dew
11°C / 8°C
Altimeter
30.01 inHg

Obs: 2026-10-13T11:56:00.000Z

Raw METAR / TAF 
METAR KSFO 131156Z 22003KT 10SM FEW009 11/08 A3001 RMK AO2 SLP163 T01060083 10139 20106 51009 $

TAF KSFO 131120Z 1312/1418 VRB05KT P6SM FEW009 FM132000 32012KT P6SM SKC FM140400 28006KT P6SM SKC

flight Live Traffic

flight_takeoff 156 Departures
flight_land 173 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A61D00 SEA → SFO Jul 26, 01:50 UTCJul 26, 04:15 UTC2h 25m - -
2026-07-25 A55B3C SEA → SFO Jul 25, 02:10 UTCJul 25, 04:55 UTC2h 45m - -
2026-07-25 A55B3C SEA → SFO Jul 25, 02:15 UTCJul 25, 04:51 UTC2h 36m +50m -10m
2026-07-24 A611DB SEA → SFO Jul 24, 02:15 UTCJul 24, 04:50 UTC2h 35m - -
2026-07-23 A611DB SEA → SFO Jul 23, 01:50 UTCJul 23, 04:35 UTC2h 45m - -
2026-07-22 A5A2CC SEA → SFO Jul 22, 02:45 UTCJul 22, 05:20 UTC2h 35m - -
2026-07-21 A5EA5C SEA → SFO Jul 21, 01:45 UTCJul 21, 04:10 UTC2h 25m - -
2026-07-20 A5AA3A SEA → SFO Jul 20, 01:40 UTCJul 20, 04:05 UTC2h 25m - -
2026-07-19 A5A2CC - Jul 19, 02:55 UTCJul 19, 05:30 UTC2h 35m - -
2026-07-19 A5A2CC IAH → SLC Jul 19, 02:50 UTCJul 19, 05:25 UTC2h 35m +85m -7m
2026-07-18 A5AA3A - Jul 18, 01:54 UTCJul 18, 04:25 UTC2h 31m - -
2026-07-17 A5A2CC - Jul 17, 01:55 UTCJul 17, 04:35 UTC2h 40m - -
2026-07-16 A5F1CA - Jul 16, 01:45 UTCJul 16, 04:15 UTC2h 30m - -
2026-07-15 A62F93 - Jul 15, 01:40 UTCJul 15, 04:10 UTC2h 30m - -
2026-07-14 A57B4D - Jul 14, 01:55 UTCJul 14, 04:30 UTC2h 35m - -
2026-07-13 A582BB - Jul 13, 01:50 UTCJul 13, 04:25 UTC2h 35m - -
2026-07-12 A5E44C - Jul 12, 01:55 UTCJul 12, 04:30 UTC2h 35m - -
2026-07-11 A582BB IAH → SLC Jul 11, 02:05 UTCJul 11, 04:45 UTC2h 40m - -
2026-07-10 A5D927 - Jul 10, 01:55 UTCJul 10, 04:35 UTC2h 40m - -
2026-07-09 A5D927 - Jul 9, 02:00 UTCJul 9, 04:40 UTC2h 40m - -
2026-07-08 A56661 - Jul 8, 02:45 UTCJul 8, 05:25 UTC2h 40m - -
2026-07-07 A5FCEF IAH → SLC Jul 7, 02:10 UTCJul 7, 04:50 UTC2h 40m - -
2026-07-06 A61949 IAH → SLC Jul 6, 02:45 UTCJul 6, 05:35 UTC2h 50m - -
2026-07-04 A5FCEF - Jul 4, 02:00 UTCJul 4, 04:35 UTC2h 35m - -
2026-07-03 A56A18 - Jul 3, 02:40 UTCJul 3, 05:15 UTC2h 35m - -
2026-07-02 A55785 - Jul 2, 01:50 UTCJul 2, 04:20 UTC2h 30m - -
2026-07-01 A56A18 - Jul 1, 01:50 UTCJul 1, 04:30 UTC2h 40m - -
2026-06-30 A5B55F - Jun 30, 01:40 UTCJun 30, 04:20 UTC2h 40m - -
2026-06-29 AB1644 - Jun 29, 01:55 UTCJun 29, 04:30 UTC2h 35m - -
2026-06-28 A59B5E - Jun 28, 01:50 UTCJun 28, 04:29 UTC2h 40m - -

Performance history

Flights tracked
124 showing last 30
Avg arrival delay
-8m
On-time arrival
100% 100% on time
Aircraft used
20

Monthly activity 4 months

Month Flights tracked
July 2026 27
June 2026 34
May 2026 34
April 2026 29

UAL2157 frequently asked

Where does flight UAL2157 fly?
UAL2157 (United Airlines) flies from SEA to SFO. View the full route page.
How long is flight UAL2157?
Based on observed flights, UAL2157 takes on average 2h 36m from takeoff to landing.
How often does UAL2157 fly?
UAL2157 has been observed flying daily in our tracking data. We've recorded 124 flights under this callsign.
Is flight UAL2157 usually on time?
Across recent flights, UAL2157 arrives 8 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL2157?
UAL2157 has been operated by 20 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL2157 live?
Yes. When UAL2157 is currently airborne, the live tracker map above shows its real-time position from ADS-B broadcasts. If the map is empty, the flight is not currently in the air.