Flight Status & Tracker

UAL8139

UNITED AIRLINES INC · DEN → DFW · Last tracked Oct 9, 2026

UAL8139 is a flight number operated by UNITED AIRLINES INC between Denver International Airport (KDEN) and Dallas Fort Worth International Airport (KDFW). SkyMeter last tracked UAL8139 on October 9, 2026. The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 2h 31m. SkyMeter has observed 21 legs of this flight number via ADS-B.

SkyMeter tracks historical flight activity from ADS-B data — this is not a live gate-to-gate status feed.

✈
FLIGHTS
21
last 90 days
⏱
AVG DURATION
2h 31m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 10/9/2026
first → last seen
🗺
ROUTES / TYPES
14 / 5
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

10
KDEN → KDFW
6
avg 1h 52m · Denver → Dallas Fort Worth
KSFO → KMCO
2
avg 5h 23m · San Francisco → Orlando
KDEN → KSFO
2
avg 2h 46m · Denver → San Francisco
KDEN → KAUS
1
avg 1h 57m · Denver → Austin Bergstrom
KHAF → KLAS
1
avg 1h 23m · Half Moon Bay → McCarran
KORD → KIAH
1
avg 2h 7m · Chicago O'Hare → George Bush Intercontinental Houston
KORD → KATL
1
avg 1h 56m · Chicago O'Hare → Hartsfield Jackson Atlanta
KEWR → KSEA
1
avg 5h 56m · Newark Liberty → Seattle Tacoma
KDEN → KEWR
1
avg 3h 43m · Denver → Newark Liberty
KDEN → KSEA
1
avg 3h 16m · Denver → Seattle Tacoma

Aircraft types

Equipment used on this number

5
B39M BOEING Boeing 737 MAX 9
9
B739 BOEING Boeing 737-900
7
A21N AIRBUS Airbus A321 Neo
4
B738 BOEING Boeing 737-800
3
A319 AIRBUS Airbus A319
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 UAL8139

30
N17461BOEING Boeing 737 MAX 9
→
10/10/2026
1h 21m
No alerts
Replay Analysis
N17461BOEING Boeing 737 MAX 9
→
10/9/2026
5h 34m
No alerts
Replay Analysis
N17461BOEING Boeing 737 MAX 9
→
10/9/2026
4h 12m
No alerts
Replay Analysis
N17482
→
10/8/2026
53m
No alerts
Replay Analysis
N17482
→
10/7/2026
5h 11m
No alerts
Replay Analysis
N17482
→
10/7/2026
4h 17m
No alerts
Replay Analysis
N54558AIRBUS Airbus A321 Neo
→
9/26/2026
3h 43m
No alerts
Replay Analysis
N54558AIRBUS Airbus A321 Neo
→
9/26/2026
32m
No alerts
Replay Analysis
N17407BOEING Boeing 737 MAX 9
→
9/25/2026
4h 54m
No alerts
Replay Analysis
N17407BOEING Boeing 737 MAX 9
→
9/25/2026
1h 0m
No alerts
Replay Analysis
N17407BOEING Boeing 737 MAX 9
→
9/25/2026
5h 55m
No alerts
Replay Analysis
N17594BOEING Boeing 737-900
→
9/20/2026
2h 47m
No alerts
Replay Analysis
N14539AIRBUS Airbus A321 Neo
→
9/4/2026
2h 7m
No alerts
Replay Analysis
N33286BOEING Boeing 737-800
→
8/29/2026
6m
No alerts
Replay Analysis
N33286BOEING Boeing 737-800
→
8/29/2026
1h 22m
No alerts
Replay Analysis
N14529AIRBUS Airbus A321 Neo
→
8/27/2026
2h 44m
No alerts
Replay Analysis
N37474BOEING Boeing 737-900
→
8/25/2026
2h 0m
No alerts
Replay Analysis
N883UAAIRBUS Airbus A319
→
8/20/2026
1h 52m
No alerts
Replay Analysis
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
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window