Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL1157

Operated by United Airlines

Live map

Live map filtered to UAL1157. Shown when the flight is currently airborne.

Route airports View route page →

Departure

BOS KBOS IFR

Boston Logan International Airport

Boston, US

Local time
08:21 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
20 ft
Coordinates
42.3620, -71.0079

cloud Weather

Wind
350° / 8 kt
Visibility
10 SM
Ceiling
OVC 600 ft
Temp / Dew
11°C / 9°C
Altimeter
29.77 inHg

Obs: 2026-10-12T11:54:00.000Z

Raw METAR / TAF 
METAR KBOS 121154Z 35008KT 10SM OVC006 11/09 A2977 RMK AO2 SLP082 60004 70154 T01060094 10117 20100 55006

TAF KBOS 121120Z 1212/1318 36009KT 6SM BR OVC006 FM121400 36009KT P6SM OVC015 FM121700 35005KT P6SM SCT040 TEMPO 1217/1219 BKN030 FM130400 04010KT P6SM OVC030 FM131000 07010KT P6SM -RA OVC008

warning FAA Advisories

  • Ground Delay: low ceilings (avg 1 hour and 25 minutes)

flight Live Traffic

flight_takeoff 180 Departures
flight_land 202 Arrivals

Arrival

IAD KIAD VFR

Washington Dulles International Airport

Dulles, US

Local time
08:21 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
312 ft
Coordinates
38.9445, -77.4558

cloud Weather

Wind
320° / 11G18 kt
Visibility
10 SM
Ceiling
BKN 3,300 ft
Temp / Dew
16°C / 14°C
Altimeter
29.86 inHg

Obs: 2026-10-12T11:52:00.000Z

Raw METAR / TAF 
METAR KIAD 121152Z 32011G18KT 10SM BKN033 16/14 A2986 RMK AO2 SLP110 60082 70192 T01610139 10161 20150 51027 $

TAF KIAD 121136Z 1212/1318 33010G17KT 6SM BR SCT018 BKN045 FM121300 33010G18KT P6SM BKN020 BKN035 FM121600 34013G21KT P6SM SCT025 BKN040 FM121800 33011G18KT P6SM BKN045 FM122100 31007KT P6SM SCT050 FM130000 30003KT P6SM FEW050 FM131400 19005KT P6SM SCT250

flight Live Traffic

flight_takeoff 92 Departures
flight_land 114 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 AA6E81 BOS → IAD Jul 26, 03:55 UTCJul 26, 04:40 UTC45m - -
2026-07-26 AA6E81 BOS → IAD Jul 26, 00:10 UTCJul 26, 03:40 UTC3h 30m - -
2026-07-24 AA8C39 BOS → IAD Jul 24, 23:20 UTCJul 24, 23:35 UTC15m - -
2026-07-24 AA8C39 BOS → IAD Jul 24, 23:20 UTCJul 25, 03:56 UTC4h 36m +20m +7m
2026-07-24 A1C66A BOS → IAD Jul 24, 05:30 UTCJul 24, 06:30 UTC1h 0m - -
2026-07-23 A1C66A BOS → IAD Jul 23, 01:00 UTCJul 23, 05:30 UTC4h 30m - -
2026-07-23 A1C66A BOS → IAD Jul 23, 00:55 UTCJul 23, 05:25 UTC4h 30m +115m +7m
2026-07-21 A1CDD8 - Jul 21, 23:35 UTCJul 22, 04:10 UTC4h 35m - -
2026-07-20 AA79A6 - Jul 20, 23:30 UTCJul 21, 04:30 UTC4h 59m - -
2026-07-19 A1EA32 - Jul 19, 23:25 UTCJul 20, 04:20 UTC4h 55m - -
2026-07-18 A1E2C4 - Jul 18, 23:25 UTCJul 19, 04:00 UTC4h 35m - -
2026-07-17 AA8C39 - Jul 17, 23:14 UTCJul 18, 03:50 UTC4h 36m - -
2026-07-16 A1C66A - Jul 16, 23:59 UTCJul 17, 04:44 UTC4h 45m - -
2026-07-15 AA6E81 - Jul 15, 23:30 UTCJul 16, 04:15 UTC4h 45m - -
2026-07-14 A1E2C4 - Jul 14, 23:15 UTCJul 15, 03:55 UTC4h 40m - -
2026-07-13 A1C66A - Jul 13, 23:10 UTCJul 14, 04:05 UTC4h 55m - -
2026-07-12 A1E2C4 - Jul 12, 23:30 UTCJul 13, 04:20 UTC4h 50m - -
2026-07-11 AA9600 - Jul 11, 23:55 UTCJul 12, 04:40 UTC4h 45m - -
2026-07-10 AA9600 - Jul 10, 23:20 UTCJul 11, 04:15 UTC4h 55m - -
2026-07-09 AA75EF - Jul 9, 23:50 UTCJul 10, 04:40 UTC4h 50m - -
2026-07-08 A1C66A - Jul 8, 23:30 UTCJul 9, 04:10 UTC4h 40m - -
2026-07-07 A1BEFC BOS → IAD Jul 7, 23:25 UTCJul 8, 04:00 UTC4h 35m - -
2026-07-06 A1C66A BOS → IAD Jul 6, 23:10 UTCJul 6, 23:30 UTC20m - -
2026-07-06 A1C66A BOS → IAD Jul 6, 23:20 UTCJul 7, 03:47 UTC4h 27m +20m on time
2026-07-05 AA9600 BOS → IAD Jul 5, 23:20 UTCJul 6, 04:00 UTC4h 40m - -
2026-07-04 AA64BA BOS → IAD Jul 4, 23:10 UTCJul 5, 03:40 UTC4h 30m - -
2026-07-03 AA75EF BOS → IAD Jul 3, 23:20 UTCJul 4, 03:50 UTC4h 30m - -
2026-07-02 A1CDD8 BOS → IAD Jul 2, 23:15 UTCJul 3, 03:50 UTC4h 35m - -
2026-07-01 A1EA32 BOS → IAD Jul 1, 23:25 UTCJul 2, 04:15 UTC4h 50m - -
2026-06-30 AA79A6 BOS → IAD Jun 30, 23:20 UTCJul 1, 04:10 UTC4h 50m - -

Performance history

Flights tracked
144 showing last 30
Avg arrival delay
+5m
On-time arrival
100% 100% on time
Aircraft used
11

Monthly activity 4 months

Month Flights tracked
July 2026 29
June 2026 36
May 2026 47
April 2026 32

UAL1157 frequently asked

Where does flight UAL1157 fly?
UAL1157 (United Airlines) flies from BOS to IAD. View the full route page.
How long is flight UAL1157?
Based on observed flights, UAL1157 takes on average 4h 6m from takeoff to landing.
How often does UAL1157 fly?
UAL1157 has been observed flying daily in our tracking data. We've recorded 144 flights under this callsign.
Is flight UAL1157 usually on time?
Across recent flights, UAL1157 arrives with an average 5-minute delay. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL1157?
UAL1157 has been operated by 11 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL1157 live?
Yes. When UAL1157 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.