Apparatus

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flight_takeoff Flight

UAL1851

Operated by United Airlines

Live map

Live map filtered to UAL1851. Shown when the flight is currently airborne.

Route airports View route page →

Departure

PDX KPDX VFR

Portland International Airport

Portland, US

Local time
17:51 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
31 ft
Coordinates
45.5887, -122.5980

cloud Weather

Wind
330° / 8 kt
Visibility
10 SM
Ceiling
SCT 4,500 ft
Temp / Dew
24°C / 9°C
Altimeter
29.98 inHg

Obs: 2026-08-28T23:53:00.000Z

Raw METAR / TAF 
METAR KPDX 282353Z 33008KT 280V360 10SM SCT045 24/09 A2998 RMK AO2 SLP151 T02440094 10250 20194 56019 $

TAF KPDX 282320Z 2900/2924 32009G19KT P6SM FEW045 FM290800 VRB04KT P6SM SCT050 FM291200 22005KT P6SM VCSH BKN040 FM291800 27007KT P6SM BKN045

flight Live Traffic

flight_takeoff 64 Departures
flight_land 86 Arrivals

Arrival

IAH KIAH VFR

George Bush Intercontinental Airport

Houston, US

Local time
19:51 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
97 ft
Coordinates
29.9844, -95.3414

cloud Weather

Wind
190° / 5 kt
Visibility
10 SM
Ceiling
FEW 7,500 ft, SCT 11,000 ft, BKN 16,000 ft, BKN 25,000 ft
Temp / Dew
24°C / 24°C
Altimeter
29.96 inHg

Obs: 2026-08-29T00:06:00.000Z

Raw METAR / TAF 
SPECI KIAH 290006Z 19005KT 10SM FEW075 SCT110 BKN160 BKN250 24/24 A2996 RMK AO2 RAE04 TSE06 TS DSIPT P0000 T02440239

TAF KIAH 282338Z 2900/3006 09010KT P6SM VCSH FEW015 FEW040 BKN250 FM290100 14005KT P6SM SCT040 FM290600 VRB05KT P6SM FEW030 FM291800 14007KT P6SM SCT250

flight Live Traffic

flight_takeoff 193 Departures
flight_land 193 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A9D5E4 PDX → IAH Jul 26, 03:05 UTCJul 26, 03:55 UTC50m - -
2026-07-25 A9D5E7 PDX → IAH Jul 25, 01:43 UTCJul 25, 02:34 UTC51m +38m -3m
2026-07-25 A9D5E7 PDX → IAH Jul 25, 01:35 UTCJul 25, 02:35 UTC1h 0m - -
2026-07-24 A3A0CA PDX → IAH Jul 24, 01:45 UTCJul 24, 02:40 UTC55m - -
2026-07-23 A3EF7E PDX → IAH Jul 23, 02:05 UTCJul 23, 03:10 UTC1h 5m - -
2026-07-22 AA7E7A PDX → IAH Jul 22, 01:40 UTCJul 22, 02:40 UTC1h 0m - -
2026-07-21 A0ACBB PDX → IAH Jul 21, 01:50 UTCJul 21, 02:55 UTC1h 5m - -
2026-07-20 AA4C42 - Jul 20, 02:15 UTCJul 20, 03:15 UTC1h 0m - -
2026-07-19 AA7E7C - Jul 19, 05:35 UTCJul 19, 06:25 UTC50m - -
2026-07-18 A49510 - Jul 18, 03:25 UTCJul 18, 04:20 UTC55m - -
2026-07-18 A49510 ORD → MCI Jul 18, 03:19 UTCJul 18, 04:19 UTC1h 0m +134m -10m
2026-07-17 A43EA3 ORD → MCI Jul 17, 04:06 UTCJul 17, 04:59 UTC53m +181m -1m
2026-07-17 A43EA3 - Jul 17, 04:04 UTCJul 17, 04:59 UTC55m - -
2026-07-16 A05E02 - Jul 16, 02:05 UTCJul 16, 03:00 UTC55m - -
2026-07-15 A1239C - Jul 15, 01:20 UTCJul 15, 02:20 UTC1h 0m - -
2026-07-14 A23A28 ORD → MCI Jul 14, 01:43 UTCJul 14, 02:34 UTC51m +38m -5m
2026-07-14 A23A28 - Jul 14, 01:40 UTCJul 14, 02:35 UTC55m - -
2026-07-13 AA56DB - Jul 13, 01:35 UTCJul 13, 02:35 UTC1h 0m - -
2026-07-12 AAA5D4 - Jul 12, 02:30 UTCJul 12, 03:25 UTC55m - -
2026-07-11 A43EA3 - Jul 11, 01:40 UTCJul 11, 03:01 UTC1h 20m - -
2026-07-10 A0ACDD - Jul 10, 05:55 UTCJul 10, 06:50 UTC55m - -
2026-07-09 A0ACF8 ORD → MCI Jul 9, 01:53 UTCJul 9, 03:11 UTC1h 18m +38m -6m
2026-07-09 A0ACF8 - Jul 9, 02:15 UTCJul 9, 03:10 UTC55m - -
2026-07-08 A28928 - Jul 8, 02:30 UTCJul 8, 03:30 UTC1h 0m - -
2026-07-07 A8D4D2 - Jul 7, 01:50 UTCJul 7, 02:45 UTC55m - -
2026-07-07 A8D4D2 ORD → MCI Jul 7, 01:43 UTCJul 7, 02:45 UTC1h 2m +38m -7m
2026-07-06 A2615E - Jul 6, 02:05 UTCJul 6, 03:00 UTC55m - -
2026-07-05 AACD50 - Jul 5, 02:20 UTCJul 5, 03:20 UTC1h 0m - -
2026-07-02 A43E5B - Jul 2, 03:25 UTCJul 2, 04:20 UTC55m - -
2026-07-01 AAA593 - Jul 1, 02:30 UTCJul 1, 03:25 UTC55m - -

Performance history

Flights tracked
124 showing last 30
Avg arrival delay
-5m
On-time arrival
100% 100% on time
Aircraft used
23

Monthly activity 4 months

Month Flights tracked
July 2026 30
June 2026 34
May 2026 41
April 2026 19

UAL1851 frequently asked

Where does flight UAL1851 fly?
UAL1851 (United Airlines) flies from PDX to IAH. View the full route page.
How long is flight UAL1851?
Based on observed flights, UAL1851 takes on average 58m from takeoff to landing.
How often does UAL1851 fly?
UAL1851 has been observed flying several times a week in our tracking data. We've recorded 124 flights under this callsign.
Is flight UAL1851 usually on time?
Across recent flights, UAL1851 arrives 5 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL1851?
UAL1851 has been operated by 23 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL1851 live?
Yes. When UAL1851 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.