Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL277

Operated by United Airlines

Live map

Live map filtered to UAL277. Shown when the flight is currently airborne.

Route airports View route page →

Departure

IAD KIAD VFR

Washington Dulles International Airport

Dulles, US

Local time
03:28 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
312 ft
Coordinates
38.9445, -77.4558

cloud Weather

Wind
0° / 0 kt
Visibility
10 SM
Ceiling
FEW 25,000 ft
Temp / Dew
13°C / 11°C
Altimeter
29.81 inHg

Obs: 2026-05-30T06:52:00.000Z

Raw METAR / TAF 
METAR KIAD 300652Z 00000KT 10SM FEW250 13/11 A2981 RMK AO2 SLP093 T01330106

TAF KIAD 300538Z 3006/3112 00000KT P6SM FEW250 FM300800 33007G15KT P6SM FEW250 FM301200 36011G21KT P6SM SKC FM302300 01011KT P6SM SKC FM310100 02006KT P6SM SKC FM310700 35003KT P6SM SKC

flight Live Traffic

flight_takeoff 34 Departures
flight_land 49 Arrivals

Arrival

SFO KSFO MVFR

San Francisco International Airport

San Francisco, US

Local time
00:28 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
270° / 10 kt
Visibility
10 SM
Ceiling
OVC 1,000 ft
Temp / Dew
13°C / 11°C
Altimeter
30.11 inHg

Obs: 2026-05-30T06:56:00.000Z

Raw METAR / TAF 
METAR KSFO 300656Z 27010KT 10SM OVC010 13/11 A3011 RMK AO2 SLP195 T01280106

TAF KSFO 300520Z 3006/3112 26009KT P6SM OVC008 FM301000 27006KT P6SM OVC012 FM301800 28012KT P6SM SKC FM302300 27022KT P6SM SKC FM310600 28012KT P6SM SKC

flight Live Traffic

flight_takeoff 235 Departures
flight_land 165 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-29 AA5690 IAD → SFO May 29, 22:05 UTCMay 30, 00:05 UTC2h 0m - -
2026-05-29 A85F20 IAD → SFO May 29, 18:05 UTCMay 29, 20:40 UTC2h 35m - -
2026-05-28 AAC954 IAD → SFO May 28, 22:05 UTCMay 29, 00:05 UTC2h 0m - -
2026-05-28 A12AC1 IAD → SFO May 28, 17:35 UTCMay 28, 20:30 UTC2h 55m - -
2026-05-27 A3F621 IAD → SFO May 27, 22:45 UTCMay 28, 01:05 UTC2h 20m - -
2026-05-27 A448D7 IAD → SFO May 27, 17:40 UTCMay 27, 20:30 UTC2h 50m - -
2026-05-26 A085A4 IAD → SFO May 26, 22:39 UTCMay 26, 22:59 UTC20m - -
2026-05-26 A44938 IAD → SFO May 26, 17:25 UTCMay 26, 20:20 UTC2h 55m - -
2026-05-25 AA7E7C IAD → SFO May 25, 22:00 UTCMay 26, 00:04 UTC2h 5m - -
2026-05-25 AA7E7C IAD → SFO May 25, 21:56 UTCMay 26, 00:04 UTC2h 8m +21m -6m
2026-05-25 AA7E9A IAD → SFO May 25, 17:25 UTCMay 25, 20:15 UTC2h 49m - -
2026-05-24 A3EEB0 IAD → SFO May 24, 23:00 UTCMay 24, 23:46 UTC46m - -
2026-05-24 AD953C IAD → SFO May 24, 17:20 UTCMay 24, 20:10 UTC2h 50m - -
2026-05-23 A43EA6 IAD → SFO May 23, 23:10 UTCMay 24, 01:20 UTC2h 10m - -
2026-05-23 A44981 IAD → SFO May 23, 18:00 UTCMay 23, 20:45 UTC2h 45m - -
2026-05-22 AA5690 IAD → SFO May 22, 22:05 UTCMay 23, 00:05 UTC2h 0m - -
2026-05-22 A3CF6D IAD → SFO May 22, 17:25 UTCMay 22, 20:10 UTC2h 45m - -
2026-05-21 A3EEB0 IAD → SFO May 21, 22:35 UTCMay 22, 00:35 UTC2h 0m - -
2026-05-21 A445AB IAD → SFO May 21, 17:35 UTCMay 21, 20:35 UTC3h 0m - -
2026-05-20 A12AE5 IAD → SFO May 20, 22:20 UTCMay 21, 00:25 UTC2h 5m - -
2026-05-20 A12AE5 IAD → SFO May 20, 22:31 UTCMay 21, 00:21 UTC1h 50m +42m on time
2026-05-20 A12AE5 IAD → SFO May 20, 17:55 UTCMay 20, 20:50 UTC2h 55m - -
2026-05-19 A12F75 IAD → SFO May 19, 23:05 UTCMay 20, 01:05 UTC2h 0m - -
2026-05-19 A12F75 IAD → SFO May 19, 17:45 UTCMay 19, 20:35 UTC2h 50m - -
2026-05-18 A2B7CD IAD → SFO May 18, 22:05 UTCMay 19, 00:05 UTC2h 0m - -
2026-05-18 A2BBAC IAD → SFO May 18, 17:35 UTCMay 18, 20:35 UTC2h 59m - -
2026-05-17 A2BB83 IAD → SFO May 17, 22:31 UTCMay 18, 00:09 UTC1h 38m +42m -3m
2026-05-17 A2BB83 IAD → SFO May 17, 22:15 UTCMay 18, 00:10 UTC1h 55m - -
2026-05-17 A2BB83 IAD → SFO May 17, 17:40 UTCMay 17, 20:25 UTC2h 45m - -
2026-05-16 A12EE7 IAD → SFO May 16, 22:05 UTCMay 16, 23:55 UTC1h 50m - -

Performance history

Flights tracked
102 showing last 30
Avg arrival delay
-3m
On-time arrival
100% 100% on time
Aircraft used
22

Monthly activity 2 months

Month Flights tracked
May 2026 59
April 2026 43

UAL277 frequently asked

Where does flight UAL277 fly?
UAL277 (United Airlines) flies from IAD to SFO. View the full route page.
How long is flight UAL277?
Based on observed flights, UAL277 takes on average 2h 16m from takeoff to landing.
How often does UAL277 fly?
UAL277 has been observed flying several times a week in our tracking data. We've recorded 102 flights under this callsign.
Is flight UAL277 usually on time?
Across recent flights, UAL277 arrives 3 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL277?
UAL277 has been operated by 22 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL277 live?
Yes. When UAL277 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.