Flight Status & Tracker

UAL1523

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

UAL1523 is a flight number operated by UNITED AIRLINES INC between Seattle Tacoma International Airport (KSEA) and Washington Dulles International Airport (KIAD). SkyMeter last tracked UAL1523 on October 18, 2026. The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 4h 19m. SkyMeter has observed 73 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
73
last 90 days
⏱
AVG DURATION
4h 19m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 10/18/2026
first → last seen
🗺
ROUTES / TYPES
4 / 4
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

1
KSEA → KIAD
52
avg 4h 52m · Seattle Tacoma → Washington Dulles

Aircraft types

Equipment used on this number

4
B39M BOEING Boeing 737 MAX 9
54
B38M BOEING Boeing 737 MAX 8
18
B738 BOEING Boeing 737-800
1
B739 BOEING Boeing 737-900
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 UAL1523

30
N37561BOEING Boeing 737 MAX 9
→
10/18/2026
4h 56m
No alerts
Replay Analysis
N17423BOEING Boeing 737 MAX 9
→
10/16/2026
5h 25m
No alerts
Replay Analysis
N27519BOEING Boeing 737 MAX 9
→
10/15/2026
5h 8m
No alerts
Replay Analysis
N37577BOEING Boeing 737 MAX 9
→
10/14/2026
4h 55m
No alerts
Replay Analysis
N37415BOEING Boeing 737 MAX 9
→
10/10/2026
5h 8m
No alerts
Replay Analysis
N37534BOEING Boeing 737 MAX 9
→
10/9/2026
4h 52m
No alerts
Replay Analysis
N27526BOEING Boeing 737 MAX 9
→
10/8/2026
4h 44m
No alerts
Replay Analysis
N77558BOEING Boeing 737 MAX 9
→
10/7/2026
4h 38m
No alerts
Replay Analysis
N38446BOEING Boeing 737-900
→
10/6/2026
4h 43m
No alerts
Replay Analysis
N17448BOEING Boeing 737 MAX 9
→
10/5/2026
4h 58m
No alerts
Replay Analysis
N27515BOEING Boeing 737 MAX 9
→
10/4/2026
5h 2m
No alerts
Replay Analysis
N27526BOEING Boeing 737 MAX 9
→
10/3/2026
5h 3m
No alerts
Replay Analysis
N27419BOEING Boeing 737 MAX 9
→
10/2/2026
4h 39m
No alerts
Replay Analysis
N57480
→
10/1/2026
4h 49m
No alerts
Replay Analysis
N77582BOEING Boeing 737 MAX 9
→
9/30/2026
4h 39m
No alerts
Replay Analysis
N17441BOEING Boeing 737 MAX 9
→
9/29/2026
4h 40m
No alerts
Replay Analysis
N37540BOEING Boeing 737 MAX 9
→
9/28/2026
4h 56m
No alerts
Replay Analysis
N47453BOEING Boeing 737 MAX 9
→
9/24/2026
4h 48m
No alerts
Replay Analysis
N17468BOEING Boeing 737 MAX 9
→
9/23/2026
4h 59m
No alerts
Replay Analysis
N17401BOEING Boeing 737 MAX 9
→
9/22/2026
5h 11m
No alerts
Replay Analysis
N77471BOEING Boeing 737 MAX 9
→
9/21/2026
4h 50m
No alerts
Replay Analysis
N37551BOEING Boeing 737 MAX 9
→
9/20/2026
4h 48m
No alerts
Replay Analysis
N77585BOEING Boeing 737 MAX 9
→
9/19/2026
5h 7m
No alerts
Replay Analysis
N37542BOEING Boeing 737 MAX 9
→
9/18/2026
5h 13m
No alerts
Replay Analysis
N17459BOEING Boeing 737 MAX 9
→
9/17/2026
4h 48m
No alerts
Replay Analysis
N47345BOEING Boeing 737 MAX 8
→
9/16/2026
4h 50m
No alerts
Replay Analysis
N77544BOEING Boeing 737 MAX 9
→
9/15/2026
5h 3m
No alerts
Replay Analysis
N37504BOEING Boeing 737 MAX 9
→
9/14/2026
4h 45m
No alerts
Replay Analysis
N27474BOEING Boeing 737 MAX 9
→
9/12/2026
4h 40m
No alerts
Replay Analysis
N37502BOEING Boeing 737 MAX 9
→
9/11/2026
4h 47m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window