Flight Status & Tracker

UAL599

UNITED AIRLINES INC · IAD → DEN · Last tracked Oct 18, 2026

UAL599 is a flight number operated by UNITED AIRLINES INC between Washington Dulles International Airport (KIAD) and Denver International Airport (KDEN). SkyMeter last tracked UAL599 on October 18, 2026. The flight is most often flown by a BOEING Boeing 757-300. Typical block time is 4h 8m. SkyMeter has observed 127 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
127
last 90 days
⏱
AVG DURATION
4h 8m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 10/18/2026
first → last seen
🗺
ROUTES / TYPES
8 / 8
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

6
KIAD → KDEN
53
avg 3h 56m · Washington Dulles → Denver
KSFO → KIAD
47
avg 5h 8m · San Francisco → Washington Dulles
KHAF → KIAD
6
avg 4h 59m · Half Moon Bay → Washington Dulles
KOAK → KIAD
2
avg 5h 7m · Metropolitan Oakland → Washington Dulles
KIAD → KCOS
1
avg 4h 0m · Washington Dulles → City of Colorado Springs
KCOS → KDEN
1
avg 53m · City of Colorado Springs → Denver

Aircraft types

Equipment used on this number

8
B753 BOEING Boeing 757-300
127
B789 BOEING Boeing 787-9 Dreamliner
36
A21N AIRBUS Airbus A321 Neo
32
B739 BOEING Boeing 737-900
9
B772 BOEING Boeing 777-200
7
B752 BOEING Boeing 757-200
2
B39M BOEING Boeing 737 MAX 9
2
B77W BOEING Boeing 777-300ER
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 UAL599

30
N68811BOEING Boeing 737-900
→
10/18/2026
6h 4m
No alerts
Replay Analysis
N57857BOEING Boeing 757-300
→
10/18/2026
1h 11m
No alerts
Replay Analysis
N26967BOEING Boeing 787-9 Dreamliner
→
10/17/2026
5h 16m
No alerts
Replay Analysis
N57857BOEING Boeing 757-300
→
10/16/2026
2h 29m
No alerts
Replay Analysis
N62849BOEING Boeing 737-900
→
10/16/2026
5h 14m
No alerts
Replay Analysis
N75854BOEING Boeing 757-300
→
10/16/2026
1h 35m
No alerts
Replay Analysis
N75854BOEING Boeing 757-300
→
10/15/2026
4h 10m
No alerts
Replay Analysis
N75854BOEING Boeing 757-300
→
10/15/2026
2h 34m
No alerts
Replay Analysis
N27958BOEING Boeing 787-9 Dreamliner
→
10/15/2026
4h 50m
No alerts
Replay Analysis
N75854BOEING Boeing 757-300
→
10/15/2026
3h 58m
No alerts
Replay Analysis
N75861BOEING Boeing 757-300
→
10/14/2026
1h 37m
No alerts
Replay Analysis
N68802BOEING Boeing 737-900
→
10/10/2026
2h 31m
No alerts
Replay Analysis
N27957BOEING Boeing 787-9 Dreamliner
→
10/10/2026
5h 12m
No alerts
Replay Analysis
N75851BOEING Boeing 757-300
→
10/10/2026
1h 26m
No alerts
Replay Analysis
N75851BOEING Boeing 757-300
→
10/9/2026
2h 35m
No alerts
Replay Analysis
N75851BOEING Boeing 757-300
→
10/9/2026
4h 1m
No alerts
Replay Analysis
N17407BOEING Boeing 737 MAX 9
→
10/9/2026
5h 17m
No alerts
Replay Analysis
N57864BOEING Boeing 757-300
→
10/9/2026
1h 58m
No alerts
Replay Analysis
N57864BOEING Boeing 757-300
→
10/8/2026
4h 15m
No alerts
Replay Analysis
N57864BOEING Boeing 757-300
→
10/8/2026
2h 17m
No alerts
Replay Analysis
N31114
→
10/8/2026
4h 57m
No alerts
Replay Analysis
N57855BOEING Boeing 757-300
→
10/8/2026
1h 8m
No alerts
Replay Analysis
N69888BOEING Boeing 737-900
→
10/7/2026
5h 10m
No alerts
Replay Analysis
N75853BOEING Boeing 757-300
→
10/7/2026
1h 50m
No alerts
Replay Analysis
N75853BOEING Boeing 757-300
→
10/6/2026
2h 26m
No alerts
Replay Analysis
N75853BOEING Boeing 757-300
→
10/6/2026
4h 17m
No alerts
Replay Analysis
N66893BOEING Boeing 737-900
→
10/6/2026
5h 25m
No alerts
Replay Analysis
N61106BOEING Boeing 787-9 Dreamliner
→
10/5/2026
5h 3m
No alerts
Replay Analysis
N57864BOEING Boeing 757-300
→
10/5/2026
1h 12m
No alerts
Replay Analysis
N57864BOEING Boeing 757-300
→
10/4/2026
2h 30m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window