Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL1855

Operated by United Airlines

Live map

Live map filtered to UAL1855. Shown when the flight is currently airborne.

Route airports View route page →

Departure

ORD KORD VFR

Chicago O'Hare International Airport

Chicago, US

Local time
09:54 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
680 ft
Coordinates
41.9786, -87.9048

cloud Weather

Wind
190° / 4 kt
Visibility
10 SM
Ceiling
FEW 5,000 ft
Temp / Dew
22°C / 17°C
Altimeter
30.15 inHg

Obs: 2026-08-28T13:51:00.000Z

Raw METAR / TAF 
METAR KORD 281351Z 19004KT 10SM FEW050 22/17 A3015 RMK AO2 SLP208 T02220167

TAF KORD 281120Z 2812/2918 VRB04KT P6SM FEW080 FM281500 22006KT P6SM SCT050 FM291500 22013KT P6SM BKN150

flight Live Traffic

flight_takeoff 440 Departures
flight_land 433 Arrivals

Arrival

BOS KBOS VFR

Boston Logan International Airport

Boston, US

Local time
10:54 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
20 ft
Coordinates
42.3620, -71.0079

cloud Weather

Wind
250° / 7 kt
Visibility
10 SM
Ceiling
FEW 1,300 ft, BKN 14,000 ft, BKN 25,000 ft
Temp / Dew
26°C / 21°C
Altimeter
29.99 inHg

Obs: 2026-08-28T13:54:00.000Z

Raw METAR / TAF 
METAR KBOS 281354Z 25007KT 10SM FEW013 BKN140 BKN250 26/21 A2999 RMK AO2 SLP156 T02610206

TAF KBOS 281120Z 2812/2918 19007KT P6SM SCT010 SCT025 FM281500 12005KT P6SM BKN050 PROB30 2818/2821 4SM TSRA OVC040CB FM282300 21004KT P6SM BKN100 FM290300 33007KT P6SM SCT090 FM291500 04008KT P6SM FEW250

flight Live Traffic

flight_takeoff 250 Departures
flight_land 236 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-25 A31A56 ORD → BOS Jul 25, 22:35 UTCJul 26, 03:00 UTC4h 25m - -
2026-07-24 A2CB33 ORD → BOS Jul 24, 20:35 UTCJul 25, 01:05 UTC4h 30m - -
2026-07-23 A09FC4 ORD → BOS Jul 23, 21:05 UTCJul 24, 01:55 UTC4h 50m - -
2026-07-22 A2A41E ORD → BOS Jul 22, 20:45 UTCJul 23, 01:15 UTC4h 30m - -
2026-07-21 A2A3B6 ORD → BOS Jul 21, 22:20 UTCJul 22, 02:40 UTC4h 20m - -
2026-07-20 A43100 ORD → BOS Jul 20, 20:45 UTCJul 21, 01:25 UTC4h 39m - -
2026-07-19 A31A56 ORD → BOS Jul 19, 20:40 UTCJul 20, 01:25 UTC4h 45m - -
2026-07-18 A254D7 ORD → BOS Jul 18, 23:20 UTCJul 19, 04:05 UTC4h 45m - -
2026-07-17 A18D29 ORD → BOS Jul 17, 21:55 UTCJul 18, 02:35 UTC4h 40m - -
2026-07-16 A254F7 ORD → BOS Jul 16, 21:00 UTCJul 17, 01:39 UTC4h 40m - -
2026-07-15 A2A3AF LAX → EWR Jul 15, 21:25 UTCJul 16, 02:05 UTC4h 40m - -
2026-07-14 A2CB14 - Jul 14, 20:40 UTCJul 15, 01:30 UTC4h 49m - -
2026-07-13 A2551A - Jul 13, 20:40 UTCJul 14, 01:35 UTC4h 55m - -
2026-07-12 A2551A - Jul 12, 21:10 UTCJul 13, 01:50 UTC4h 40m - -
2026-07-11 A596B1 - Jul 11, 21:00 UTCJul 12, 01:40 UTC4h 40m - -
2026-07-10 A596B1 - Jul 10, 21:00 UTCJul 11, 01:40 UTC4h 40m - -
2026-07-10 A596B1 LAX → EWR Jul 10, 20:41 UTCJul 11, 01:30 UTC4h 49m +16m +40m
2026-07-09 A20621 - Jul 9, 22:10 UTCJul 10, 02:50 UTC4h 40m - -
2026-07-08 A22D9F - Jul 8, 21:45 UTCJul 9, 02:25 UTC4h 40m - -
2026-07-07 A0A545 - Jul 7, 20:35 UTCJul 8, 01:25 UTC4h 50m - -
2026-07-06 A2CB33 - Jul 6, 21:25 UTCJul 7, 02:10 UTC4h 45m - -
2026-07-05 A07DCD - Jul 5, 22:30 UTCJul 6, 03:20 UTC4h 50m - -
2026-07-03 A31A73 LAX → EWR Jul 3, 23:20 UTCJul 4, 04:00 UTC4h 40m - -
2026-07-02 A31A56 - Jul 2, 20:50 UTCJul 3, 01:25 UTC4h 35m - -
2026-07-02 A31A56 - Jul 2, 02:10 UTCJul 2, 06:30 UTC4h 20m - -
2026-07-02 A31A56 LAX → EWR Jul 2, 01:51 UTCJul 2, 06:27 UTC4h 36m +326m -5m
2026-06-30 A2A41E - Jun 30, 21:20 UTCJul 1, 01:45 UTC4h 25m - -
2026-06-29 A31A77 - Jun 29, 20:40 UTCJun 30, 01:19 UTC4h 40m - -
2026-06-28 A22D7B - Jun 28, 21:34 UTCJun 29, 02:00 UTC4h 25m - -
2026-06-27 A2A3B5 - Jun 27, 21:19 UTCJun 28, 01:29 UTC4h 10m - -

Performance history

Flights tracked
128 showing last 30
Avg arrival delay
+18m
On-time arrival
50% 50% on time
Aircraft used
21

Monthly activity 4 months

Month Flights tracked
July 2026 26
June 2026 38
May 2026 34
April 2026 30

UAL1855 frequently asked

Where does flight UAL1855 fly?
UAL1855 (United Airlines) flies from ORD to BOS. View the full route page.
How long is flight UAL1855?
Based on observed flights, UAL1855 takes on average 4h 38m from takeoff to landing.
How often does UAL1855 fly?
UAL1855 has been observed flying daily in our tracking data. We've recorded 128 flights under this callsign.
Is flight UAL1855 usually on time?
Across recent flights, UAL1855 arrives with an average 18-minute delay. 50% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL1855?
UAL1855 has been operated by 21 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL1855 live?
Yes. When UAL1855 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.