Flight Status & Tracker

UAL4211

UNITED AIRLINES INC · BFI → SEA · Last tracked Sep 30, 2026

UAL4211 is a flight number operated by UNITED AIRLINES INC between Boeing Field King County International Airport (KBFI) and Seattle Tacoma International Airport (KSEA). SkyMeter last tracked UAL4211 on September 30, 2026. The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 1h 41m. SkyMeter has observed 4 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
4
last 90 days
⏱
AVG DURATION
1h 41m
tracked time
📅
SERVICE PERIOD
8/23/2025 → 9/30/2026
first → last seen
🗺
ROUTES / TYPES
3 / 1
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

3
KBFI → KSEA
2
avg 42m · Boeing Field King County → Seattle Tacoma
KCHS → KLAX
1
avg 4h 33m · Charleston Air Force Base-International → Los Angeles
KBFI → KPDX
1
avg 47m · Boeing Field King County → Portland

Aircraft types

Equipment used on this number

1
B39M BOEING Boeing 737 MAX 9
3

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 UAL4211

30
N81113
→
9/30/2026
4h 33m
No alerts
Replay Analysis
N17475BOEING Boeing 737 MAX 9
→
9/24/2026
29m
No alerts
Replay Analysis
N27474BOEING Boeing 737 MAX 9
→
8/27/2026
53m
No alerts
Replay Analysis
N17467BOEING Boeing 737 MAX 9
→
7/30/2026
46m
No alerts
Replay Analysis
N27463BOEING Boeing 737 MAX 9
→
7/23/2026
1h 37m
No alerts
Replay Analysis
N47457BOEING Boeing 737 MAX 9
→
6/30/2026
1h 22m
No alerts
Replay Analysis
N64321AIRBUS Airbus A321 Neo
→
6/13/2026
34m
No alerts
Replay Analysis
N87442BOEING Boeing 737 MAX 9
→
5/15/2026
1h 46m
No alerts
Replay Analysis
N665UABOEING Boeing 767-300
→
5/8/2026
1h 15m
No alerts
Replay Analysis
N794UABOEING Boeing 777-200
→
4/28/2026
10h 59m
No alerts
Replay Analysis
N37450BOEING Boeing 737 MAX 9
→
4/17/2026
32m
No alerts
Replay Analysis
N14735BOEING Boeing 737-700
→
4/2/2026
1h 45m
No alerts
Replay Analysis
N17444BOEING Boeing 737 MAX 9
→
3/29/2026
1h 45m
No alerts
Replay Analysis
N37440BOEING Boeing 737 MAX 9
→
3/23/2026
46m
No alerts
Replay Analysis
N61101BOEING Boeing 787-9 Dreamliner
→
2/27/2026
1h 21m
No alerts
Replay Analysis
N17435BOEING Boeing 737 MAX 9
→
2/18/2026
2h 27m
No alerts
Replay Analysis
N17435BOEING Boeing 737 MAX 9
→
2/18/2026
2h 27m
No alerts
Replay Analysis
N17432BOEING Boeing 737 MAX 9
→
2/12/2026
57m
No alerts
Replay Analysis
N17432BOEING Boeing 737 MAX 9
→
2/12/2026
57m
No alerts
Replay Analysis
N17432BOEING Boeing 737 MAX 9
→
2/12/2026
1h 39m
No alerts
Replay Analysis
N17432BOEING Boeing 737 MAX 9
→
2/12/2026
42m
No alerts
Replay Analysis
N17432BOEING Boeing 737 MAX 9
→
2/12/2026
42m
No alerts
Replay Analysis
N17422BOEING Boeing 737 MAX 9
→
2/3/2026
40m
No alerts
Replay Analysis
N17423BOEING Boeing 737 MAX 9
→
1/23/2026
38m
No alerts
Replay Analysis
N17423BOEING Boeing 737 MAX 9
→
1/23/2026
38m
No alerts
Replay Analysis
N17420BOEING Boeing 737 MAX 9
→
1/10/2026
2h 11m
No alerts
Replay Analysis
N17418BOEING Boeing 737 MAX 9
→
12/19/2025
43m
No alerts
Replay Analysis
N20904BOEING Boeing 787-8 BBJ/Dreamliner
→
11/30/2025
9h 20m
No alerts
Replay Analysis
N20904BOEING Boeing 787-8 BBJ/Dreamliner
→
11/30/2025
9h 20m
No alerts
Replay Analysis
N17411BOEING Boeing 737 MAX 9
→
8/29/2025
2h 10m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window