UAL1851

UNITED AIRLINES INC · DEN → SLC

UAL1851 is operated by UNITED AIRLINES INC between Denver International Airport (KDEN) and Salt Lake City International Airport (KSLC). The flight is most often flown by a BOEING Boeing 737-900. Typical block time is 1h 30m. SkyMeter has observed 85 legs of this flight number via ADS-B.

✈
FLIGHTS
85
last 90 days
⏱
AVG DURATION
1h 30m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 07/19/2026
first → last seen
🗺
ROUTES / TYPES
10 / 8
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

5
KDEN → KSLC
35
avg 1h 25m · Denver → Salt Lake City
KORD → KMCI
18
avg 1h 7m · Chicago O'Hare → Kansas City
KONT → KSFO
13
avg 1h 22m · Ontario → San Francisco
KSFO → KORD
8
avg 4h 4m · San Francisco → Chicago O'Hare
KSFO → KTUS
1
avg 2h 7m · San Francisco → Tucson International Airport / Morris Air National Guard Base

Aircraft types

Equipment used on this number

8
B739 BOEING Boeing 737-900
37
B738 BOEING Boeing 737-800
25
B788 BOEING Boeing 787-8 BBJ/Dreamliner
14
A320 AIRBUS Airbus A320
10
B78X BOEING Boeing 787-10 Dreamliner
7
A21N AIRBUS Airbus A321 Neo
3
A319 AIRBUS Airbus A319
2
B39M BOEING Boeing 737 MAX 9
1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
0
Rejected TO
0
Stall warnings
0
Overspeeds
0
Runway excursion
0
Counts represent flights with at least one occurrence of each flag, not the total event count. See /incidents for individual events.

Recent flights

Newest 30 operations of UAL1851

30
N77538BOEING Boeing 737-800
→
07/19/2026
1h 12m
No alerts
Replay Analysis
N39475BOEING Boeing 737-900
→
07/18/2026
55m
No alerts
Replay Analysis
N37274BOEING Boeing 737-800
→
07/17/2026
1h 17m
No alerts
Replay Analysis
N12238BOEING Boeing 737-800
→
07/16/2026
1h 14m
No alerts
Replay Analysis
N17244BOEING Boeing 737-800
→
07/15/2026
58m
No alerts
Replay Analysis
N24224BOEING Boeing 737-800
→
07/14/2026
56m
No alerts
Replay Analysis
N76529BOEING Boeing 737-800
→
07/13/2026
1h 1m
No alerts
Replay Analysis
N37274BOEING Boeing 737-800
→
07/11/2026
1h 18m
No alerts
Replay Analysis
N14228BOEING Boeing 737-800
→
07/10/2026
1h 0m
No alerts
Replay Analysis
N14230BOEING Boeing 737-800
→
07/09/2026
58m
No alerts
Replay Analysis
N14230BOEING Boeing 737-800
→
07/09/2026
27m
No alerts
Replay Analysis
N26226BOEING Boeing 737-800
→
07/08/2026
1h 23m
No alerts
Replay Analysis
N66837BOEING Boeing 737-900
→
07/07/2026
1h 0m
No alerts
Replay Analysis
N25201BOEING Boeing 737-800
→
07/06/2026
1h 11m
No alerts
Replay Analysis
N77538BOEING Boeing 737-800
→
07/03/2026
14m
No alerts
Replay Analysis
N77538BOEING Boeing 737-800
→
07/03/2026
5m
No alerts
Replay Analysis
N78509BOEING Boeing 737-800
→
07/01/2026
1h 3m
No alerts
Replay Analysis
N76526BOEING Boeing 737-800
→
06/30/2026
59m
No alerts
Replay Analysis
N73256BOEING Boeing 737-800
→
06/29/2026
1h 19m
No alerts
Replay Analysis
N78524BOEING Boeing 737-800
→
06/28/2026
1h 2m
No alerts
Replay Analysis
N33203BOEING Boeing 737-800
→
06/26/2026
1h 12m
No alerts
Replay Analysis
N47414BOEING Boeing 737-900
→
06/25/2026
1h 28m
No alerts
Replay Analysis
N38479BOEING Boeing 737-900
→
06/24/2026
1h 32m
No alerts
Replay Analysis
N75429BOEING Boeing 737-900
→
06/23/2026
1h 28m
No alerts
Replay Analysis
N62849BOEING Boeing 737-900
→
06/22/2026
1h 36m
No alerts
Replay Analysis
N485UAAIRBUS Airbus A320
→
06/21/2026
1h 39m
No alerts
Replay Analysis
N69830BOEING Boeing 737-900
→
06/20/2026
1h 22m
No alerts
Replay Analysis
N61882BOEING Boeing 737-900
→
06/19/2026
1h 21m
No alerts
Replay Analysis
N62884BOEING Boeing 737-900
→
06/18/2026
1h 16m
No alerts
Replay Analysis
N75425BOEING Boeing 737-900
→
06/17/2026
1h 25m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window