Flight Status & Tracker

UAL4210

UNITED AIRLINES INC. · BFI → SEA · Last tracked Oct 5, 2026

UAL4210 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 UAL4210 on October 5, 2026. The flight is most often flown by a AIRBUS Airbus A320. Typical block time is 1h 32m. SkyMeter has observed 7 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
7
last 90 days
⏱
AVG DURATION
1h 32m
tracked time
📅
SERVICE PERIOD
7/26/2025 → 10/5/2026
first → last seen
🗺
ROUTES / TYPES
5 / 3
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

4
KBFI → KSEA
1
avg 1h 38m · Boeing Field King County → Seattle Tacoma
KBFI → KPDX
1
avg 1h 27m · Boeing Field King County → Portland
KDTW → KTPA
1
avg 2h 24m · Detroit Metropolitan Wayne County → Tampa
KEWR → KLCQ
1
avg 2h 7m · Newark Liberty → Lake City Gateway

Aircraft types

Equipment used on this number

3
A320 AIRBUS Airbus A320
2
B752 BOEING Boeing 757-200
1
B39M BOEING Boeing 737 MAX 9
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 UAL4210

30
N67481
→
10/5/2026
1h 26m
No alerts
Replay Analysis
N495UAAIRBUS Airbus A320
→
9/27/2026
2h 7m
No alerts
Replay Analysis
N21108BOEING Boeing 757-200
→
8/23/2026
1h 56m
No alerts
Replay Analysis
N37472BOEING Boeing 737 MAX 9
→
8/18/2026
1h 38m
No alerts
Replay Analysis
N81110
→
7/30/2026
1h 0m
No alerts
Replay Analysis
N81110
→
7/30/2026
12m
No alerts
Replay Analysis
N498UAAIRBUS Airbus A320
→
7/19/2026
2h 24m
No alerts
Replay Analysis
N458UAAIRBUS Airbus A320
→
7/12/2026
1h 9m
No alerts
Replay Analysis
N826UAAIRBUS Airbus A319
→
7/5/2026
1h 47m
No alerts
Replay Analysis
N81107
→
6/27/2026
1h 12m
No alerts
Replay Analysis
N17456BOEING Boeing 737 MAX 9
→
6/16/2026
1h 13m
No alerts
Replay Analysis
N61106BOEING Boeing 787-9 Dreamliner
→
5/30/2026
1h 17m
No alerts
Replay Analysis
N665UABOEING Boeing 767-300
→
5/10/2026
7h 15m
No alerts
Replay Analysis
N19117BOEING Boeing 757-200
→
4/26/2026
19m
No alerts
Replay Analysis
N19117BOEING Boeing 757-200
→
4/25/2026
2h 34m
No alerts
Replay Analysis
N19117BOEING Boeing 757-200
→
4/25/2026
2h 54m
No alerts
Replay Analysis
N68811BOEING Boeing 737-900
→
4/22/2026
2h 3m
No alerts
Replay Analysis
N57451BOEING Boeing 737 MAX 9
→
4/11/2026
1h 20m
No alerts
Replay Analysis
N37449BOEING Boeing 737 MAX 9
→
4/4/2026
45m
No alerts
Replay Analysis
N69059BOEING Boeing 767-400
→
3/4/2026
32m
No alerts
Replay Analysis
N76519BOEING Boeing 737-800
→
2/7/2026
43m
No alerts
Replay Analysis
N76519BOEING Boeing 737-800
→
2/7/2026
43m
No alerts
Replay Analysis
N17427BOEING Boeing 737 MAX 9
→
2/1/2026
2h 37m
No alerts
Replay Analysis
N17427BOEING Boeing 737 MAX 9
→
2/1/2026
2h 37m
No alerts
Replay Analysis
N17565BOEING Boeing 737 MAX 9
→
1/6/2026
43m
No alerts
Replay Analysis
N17565BOEING Boeing 737 MAX 9
→
1/6/2026
43m
No alerts
Replay Analysis
N17565BOEING Boeing 737 MAX 9
→
1/6/2026
43m
No alerts
Replay Analysis
N57416BOEING Boeing 737 MAX 9
→
11/29/2025
2h 32m
No alerts
Replay Analysis
N831UAAIRBUS Airbus A319
→
10/30/2025
2h 44m
No alerts
Replay Analysis
N831UAAIRBUS Airbus A319
→
10/30/2025
2h 44m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window