Flight Status & Tracker

UAL4208

UNITED AIRLINES INC · BFI → SEA · Last tracked Sep 18, 2026

UAL4208 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 UAL4208 on September 18, 2026. The flight is most often flown by a AIRBUS Airbus A320. Typical block time is 1h 47m. SkyMeter has observed 10 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
10
last 90 days
⏱
AVG DURATION
1h 47m
tracked time
📅
SERVICE PERIOD
8/25/2025 → 9/18/2026
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
5
avg 1h 37m · Boeing Field King County → Seattle Tacoma
KMSP → KDEN
1
avg 5h 27m · Minneapolis-St Paul International/Wold-Chamberlain → Denver
KOKC → KORD
1
avg 2h 33m · Will Rogers World → Chicago O'Hare
KBFI → KPDX
1
avg 1h 1m · Boeing Field King County → Portland

Aircraft types

Equipment used on this number

3
A320 AIRBUS Airbus A320
5
B39M BOEING Boeing 737 MAX 9
5
B738 BOEING Boeing 737-800
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 UAL4208

30
N17479
→
9/18/2026
1h 46m
No alerts
Replay Analysis
N17477BOEING Boeing 737 MAX 9
→
8/31/2026
2h 4m
No alerts
Replay Analysis
N37473BOEING Boeing 737 MAX 9
→
8/25/2026
1h 41m
No alerts
Replay Analysis
N481UAAIRBUS Airbus A320
→
8/9/2026
2h 13m
No alerts
Replay Analysis
N481UAAIRBUS Airbus A320
→
8/9/2026
33m
No alerts
Replay Analysis
N481UAAIRBUS Airbus A320
→
8/9/2026
10m
No alerts
Replay Analysis
N481UAAIRBUS Airbus A320
→
8/8/2026
5h 27m
No alerts
Replay Analysis
N481UAAIRBUS Airbus A320
→
8/8/2026
21m
No alerts
Replay Analysis
N17468BOEING Boeing 737 MAX 9
→
7/31/2026
1h 0m
No alerts
Replay Analysis
N17465BOEING Boeing 737 MAX 9
→
7/24/2026
1h 17m
No alerts
Replay Analysis
N27464BOEING Boeing 737 MAX 9
→
7/22/2026
1h 17m
No alerts
Replay Analysis
N37273BOEING Boeing 737-800
→
7/9/2026
1h 14m
No alerts
Replay Analysis
N37273BOEING Boeing 737-800
→
7/9/2026
1h 18m
No alerts
Replay Analysis
N37273BOEING Boeing 737-800
→
7/9/2026
2h 33m
No alerts
Replay Analysis
N17460BOEING Boeing 737 MAX 9
→
6/26/2026
1h 32m
No alerts
Replay Analysis
N17455BOEING Boeing 737 MAX 9
→
6/11/2026
1h 16m
No alerts
Replay Analysis
N831UAAIRBUS Airbus A319
→
5/22/2026
46m
No alerts
Replay Analysis
N17454BOEING Boeing 737 MAX 9
→
5/2/2026
1h 23m
No alerts
Replay Analysis
N17448BOEING Boeing 737 MAX 9
→
4/8/2026
1h 8m
No alerts
Replay Analysis
N51104BOEING Boeing 787-9 Dreamliner
→
3/31/2026
1h 11m
No alerts
Replay Analysis
N17443BOEING Boeing 737 MAX 9
→
3/28/2026
1h 57m
No alerts
Replay Analysis
N27439BOEING Boeing 737 MAX 9
→
3/14/2026
53m
No alerts
Replay Analysis
N47434BOEING Boeing 737 MAX 9
→
2/14/2026
8m
No alerts
Replay Analysis
N47434BOEING Boeing 737 MAX 9
→
2/14/2026
8m
No alerts
Replay Analysis
N47434BOEING Boeing 737 MAX 9
→
2/14/2026
2h 33m
No alerts
Replay Analysis
N47434BOEING Boeing 737 MAX 9
→
2/14/2026
2h 33m
No alerts
Replay Analysis
N675UABOEING Boeing 767-300
→
2/5/2026
5h 51m
No alerts
Replay Analysis
N675UABOEING Boeing 767-300
→
2/5/2026
21m
No alerts
Replay Analysis
N675UABOEING Boeing 767-300
→
2/5/2026
21m
No alerts
Replay Analysis
N675UABOEING Boeing 767-300
→
2/4/2026
7h 51m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window