Flight Status & Tracker

UAL8177

UNITED AIRLINES INC · IAD → SEA · Last tracked Sep 21, 2026

UAL8177 is a flight number operated by UNITED AIRLINES INC between Washington Dulles International Airport (KIAD) and Seattle Tacoma International Airport (KSEA). SkyMeter last tracked UAL8177 on September 21, 2026. The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 2h 6m. SkyMeter has observed 25 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
25
last 90 days
⏱
AVG DURATION
2h 6m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 9/21/2026
first → last seen
🗺
ROUTES / TYPES
20 / 8
city pairs · airframes
⚠
INCIDENT RATE
4.0%
1 flagged

Routes flown

By count · last 90 days

10
KSFO → KCLE
2
avg 4h 16m · San Francisco → Cleveland Hopkins
KHAF → KSAN
2
avg 1h 35m · Half Moon Bay → San Diego
KIAD → KORF
2
avg 54m · Washington Dulles → Norfolk
KSFO → KSEA
2
avg 2h 12m · San Francisco → Seattle Tacoma
KORD → KPDX
1
avg 3h 46m · Chicago O'Hare → Portland
KSFO → KSAT
1
avg 3h 36m · San Francisco → San Antonio
KEWR → KTPA
1
avg 2h 30m · Newark Liberty → Tampa
KORD → KPHL
1
avg 1h 31m · Chicago O'Hare → Philadelphia
KBNA → KORD
1
avg 1h 24m · Nashville → Chicago O'Hare
KORD → KBNA
1
avg 1h 1m · Chicago O'Hare → Nashville

Aircraft types

Equipment used on this number

8
B39M BOEING Boeing 737 MAX 9
6
A320 AIRBUS Airbus A320
5
B738 BOEING Boeing 737-800
5
B739 BOEING Boeing 737-900
4
B38M BOEING Boeing 737 MAX 8
3
A319 AIRBUS Airbus A319
2
A21N AIRBUS Airbus A321 Neo
1
B737 BOEING Boeing 737-700
1

Safety profile

Flagged flights · last 90 days

Go-arounds
1
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 UAL8177

30
N1902UAIRBUS Airbus A320
→
9/21/2026
3h 35m
No alerts
Replay Analysis
N37556BOEING Boeing 737 MAX 9
→
9/20/2026
3h 45m
No alerts
Replay Analysis
N17264BOEING Boeing 737 MAX 8
→
9/16/2026
2h 14m
No alerts
Replay Analysis
N17429BOEING Boeing 737 MAX 9
→
9/4/2026
2h 30m
No alerts
Replay Analysis
N34535AIRBUS Airbus A321 Neo
→
9/2/2026
2h 18m
No alerts
Replay Analysis
N68834BOEING Boeing 737-900
→
8/25/2026
3h 19m
↻ Go-around
Replay Analysis
N15751BOEING Boeing 737-700
→
8/12/2026
4h 4m
No alerts
Replay Analysis
N27239BOEING Boeing 737-800
→
8/9/2026
3h 42m
No alerts
Replay Analysis
N27239BOEING Boeing 737-800
→
8/9/2026
31m
No alerts
Replay Analysis
N27239BOEING Boeing 737-800
→
8/9/2026
4h 14m
No alerts
Replay Analysis
N76515BOEING Boeing 737-800
→
8/6/2026
1h 40m
No alerts
Replay Analysis
N17315BOEING Boeing 737 MAX 8
→
8/6/2026
1h 30m
No alerts
Replay Analysis
N17315BOEING Boeing 737 MAX 8
→
8/6/2026
18m
No alerts
Replay Analysis
N69835BOEING Boeing 737-900
→
8/3/2026
2h 34m
No alerts
Replay Analysis
N446UAAIRBUS Airbus A320
→
8/3/2026
1h 9m
No alerts
Replay Analysis
N446UAAIRBUS Airbus A320
→
7/31/2026
2h 33m
No alerts
Replay Analysis
N77575BOEING Boeing 737 MAX 9
→
7/28/2026
1h 29m
No alerts
Replay Analysis
N496UAAIRBUS Airbus A320
→
7/28/2026
1h 51m
No alerts
Replay Analysis
N76508BOEING Boeing 737-800
→
7/24/2026
4h 18m
No alerts
Replay Analysis
N469UAAIRBUS Airbus A320
→
7/23/2026
1h 40m
No alerts
Replay Analysis
N67846BOEING Boeing 737-900
→
7/18/2026
38m
No alerts
Replay Analysis
N872UAAIRBUS Airbus A319
→
7/16/2026
1h 0m
No alerts
Replay Analysis
N17455BOEING Boeing 737 MAX 9
→
7/7/2026
1h 28m
No alerts
Replay Analysis
N854UAAIRBUS Airbus A319
→
7/6/2026
50m
No alerts
Replay Analysis
N27546BOEING Boeing 737 MAX 9
→
7/4/2026
1h 47m
No alerts
Replay Analysis
N27546BOEING Boeing 737 MAX 9
→
7/4/2026
12m
No alerts
Replay Analysis
N37468BOEING Boeing 737-900
→
7/4/2026
1h 24m
No alerts
Replay Analysis
N487UAAIRBUS Airbus A320
→
6/29/2026
55m
No alerts
Replay Analysis
N828UAAIRBUS Airbus A319
→
6/27/2026
1h 7m
No alerts
Replay Analysis
N37278BOEING Boeing 737 MAX 8
→
6/26/2026
1h 22m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window