UAL8139

UNITED AIRLINES INC · SFO → LAS

UAL8139 is operated by UNITED AIRLINES INC between San Francisco International Airport (KSFO) and McCarran International Airport (KLAS). The flight is most often flown by a BOEING Boeing 737 MAX 8. Typical block time is 1h 43m. SkyMeter has observed 23 legs of this flight number via ADS-B.

✈
FLIGHTS
23
last 90 days
⏱
AVG DURATION
1h 43m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 8/16/2026
first → last seen
🗺
ROUTES / TYPES
12 / 6
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

10
KSFO → KLAS
5
avg 1h 34m · San Francisco → McCarran
KDEN → KDFW
4
avg 1h 50m · Denver → Dallas Fort Worth
KORD → KROC
3
avg 1h 20m · Chicago O'Hare → Greater Rochester
KDFW → KEWR
2
avg 3h 6m · Dallas Fort Worth → Newark Liberty
KSFO → KLAX
1
avg 1h 17m · San Francisco → Los Angeles
KPDX → KSFO
1
avg 1h 29m · Portland → San Francisco
KDEN → KSEA
1
avg 3h 16m · Denver → Seattle Tacoma
KDEN → KRIC
1
avg 3h 5m · Denver → Richmond
KORD → KATL
1
avg 1h 56m · Chicago O'Hare → Hartsfield Jackson Atlanta
KDEN → KAUS
1
avg 1h 57m · Denver → Austin Bergstrom

Aircraft types

Equipment used on this number

6
B38M BOEING Boeing 737 MAX 8
9
B739 BOEING Boeing 737-900
5
B39M BOEING Boeing 737 MAX 9
3
A319 AIRBUS Airbus A319
2
B738 BOEING Boeing 737-800
2
B737 BOEING Boeing 737-700
2

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 UAL8139

30
N26232BOEING Boeing 737-800
→
8/16/2026
3h 5m
No alerts
Replay Analysis
N81449BOEING Boeing 737-900
→
8/15/2026
1h 49m
No alerts
Replay Analysis
N17432BOEING Boeing 737 MAX 9
→
8/14/2026
3h 15m
No alerts
Replay Analysis
N17454BOEING Boeing 737 MAX 9
→
8/12/2026
1h 56m
No alerts
Replay Analysis
N69806BOEING Boeing 737-900
→
8/8/2026
1h 39m
No alerts
Replay Analysis
N64844BOEING Boeing 737-900
→
8/7/2026
1h 51m
No alerts
Replay Analysis
N17461BOEING Boeing 737 MAX 9
→
8/4/2026
1h 57m
No alerts
Replay Analysis
N67845BOEING Boeing 737-900
→
7/28/2026
2h 1m
No alerts
Replay Analysis
N28478BOEING Boeing 737-900
→
7/22/2026
1h 17m
No alerts
Replay Analysis
N15751BOEING Boeing 737-700
→
7/19/2026
1h 15m
No alerts
Replay Analysis
N24702BOEING Boeing 737-700
→
7/16/2026
1h 31m
No alerts
Replay Analysis
N807UAAIRBUS Airbus A319
→
7/13/2026
3h 22m
No alerts
Replay Analysis
N47369BOEING Boeing 737 MAX 8
→
6/22/2026
7m
No alerts
Replay Analysis
N47369BOEING Boeing 737 MAX 8
→
6/22/2026
1h 34m
No alerts
Replay Analysis
N37353BOEING Boeing 737 MAX 8
→
6/19/2026
57m
No alerts
Replay Analysis
N34222BOEING Boeing 737-800
→
6/17/2026
1h 13m
No alerts
Replay Analysis
N17337BOEING Boeing 737 MAX 8
→
6/16/2026
6m
No alerts
Replay Analysis
N17337BOEING Boeing 737 MAX 8
→
6/16/2026
1h 30m
No alerts
Replay Analysis
N47282BOEING Boeing 737 MAX 8
→
6/12/2026
1h 44m
No alerts
Replay Analysis
N37278BOEING Boeing 737 MAX 8
→
6/9/2026
1h 39m
No alerts
Replay Analysis
N37372BOEING Boeing 737 MAX 8
→
5/28/2026
1h 29m
No alerts
Replay Analysis
N839UAAIRBUS Airbus A319
→
5/26/2026
2h 49m
No alerts
Replay Analysis
N37372BOEING Boeing 737 MAX 8
→
5/22/2026
1h 24m
No alerts
Replay Analysis
N69818BOEING Boeing 737-900
→
5/20/2026
2h 31m
No alerts
Replay Analysis
N57868BOEING Boeing 757-300
→
5/19/2026
4h 10m
No alerts
Replay Analysis
N496UAAIRBUS Airbus A320
→
5/17/2026
55m
No alerts
Replay Analysis
N14544AIRBUS Airbus A321 Neo
→
4/21/2026
2h 3m
No alerts
Replay Analysis
N37514BOEING Boeing 737 MAX 9
→
4/18/2026
5h 32m
No alerts
Replay Analysis
N24510AIRBUS Airbus A321 Neo
→
4/12/2026
2h 7m
No alerts
Replay Analysis
N815UAAIRBUS Airbus A319
→
4/10/2026
1h 49m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window