UAL2101

UNITED AIRLINES INC · IAD → SEA

UAL2101 is operated by UNITED AIRLINES INC between Washington Dulles International Airport (KIAD) and Seattle Tacoma International Airport (KSEA). The flight is most often flown by a BOEING Boeing 737-800. Typical block time is 4h 33m. SkyMeter has observed 139 legs of this flight number via ADS-B.

✈
FLIGHTS
139
last 90 days
⏱
AVG DURATION
4h 33m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 8/11/2026
first → last seen
🗺
ROUTES / TYPES
12 / 6
city pairs · airframes
⚠
INCIDENT RATE
0.7%
1 flagged

Routes flown

By count · last 90 days

6
KIAD → KSEA
71
avg 5h 29m · Washington Dulles → Seattle Tacoma
KSEA → KORD
48
avg 3h 56m · Seattle Tacoma → Chicago O'Hare
KMSP → KDTW
1
avg 2h 15m · Minneapolis-St Paul International/Wold-Chamberlain → Detroit Metropolitan Wayne County
KIND → KORD
1
avg 48m · Indianapolis → Chicago O'Hare
KSEA → KIND
1
avg 4h 34m · Seattle Tacoma → Indianapolis
KSEA → KMSP
1
avg 4h 38m · Seattle Tacoma → Minneapolis-St Paul International/Wold-Chamberlain

Aircraft types

Equipment used on this number

6
B738 BOEING Boeing 737-800
139
B739 BOEING Boeing 737-900
35
B39M BOEING Boeing 737 MAX 9
33
A320 AIRBUS Airbus A320
19
B38M BOEING Boeing 737 MAX 8
12
A319 AIRBUS Airbus A319
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 UAL2101

30
N37354BOEING Boeing 737 MAX 8
→
8/11/2026
2h 36m
No alerts
Replay Analysis
N27213BOEING Boeing 737-800
→
8/11/2026
55m
No alerts
Replay Analysis
N27213BOEING Boeing 737-800
→
8/10/2026
3h 38m
No alerts
Replay Analysis
N27213BOEING Boeing 737-800
→
8/10/2026
2h 42m
No alerts
Replay Analysis
N76532BOEING Boeing 737-800
→
8/10/2026
5h 55m
No alerts
Replay Analysis
N14219BOEING Boeing 737-800
→
8/9/2026
3h 59m
No alerts
Replay Analysis
N484UAAIRBUS Airbus A320
→
8/9/2026
46m
No alerts
Replay Analysis
N484UAAIRBUS Airbus A320
→
8/8/2026
3h 7m
No alerts
Replay Analysis
N484UAAIRBUS Airbus A320
→
8/8/2026
3h 54m
No alerts
Replay Analysis
N77520BOEING Boeing 737-800
→
8/8/2026
5h 34m
No alerts
Replay Analysis
N78511BOEING Boeing 737-800
→
8/8/2026
1h 37m
No alerts
Replay Analysis
N78511BOEING Boeing 737-800
→
8/7/2026
3h 8m
No alerts
Replay Analysis
N78511BOEING Boeing 737-800
→
8/7/2026
4h 46m
No alerts
Replay Analysis
N33284BOEING Boeing 737-800
→
8/7/2026
5h 45m
No alerts
Replay Analysis
N12218BOEING Boeing 737-800
→
8/7/2026
1h 20m
No alerts
Replay Analysis
N12218BOEING Boeing 737-800
→
8/6/2026
3h 2m
No alerts
Replay Analysis
N12218BOEING Boeing 737-800
→
8/6/2026
4h 23m
No alerts
Replay Analysis
N33284BOEING Boeing 737-800
→
8/6/2026
5h 23m
No alerts
Replay Analysis
N35236BOEING Boeing 737-800
→
8/6/2026
52m
No alerts
Replay Analysis
N35236BOEING Boeing 737-800
→
8/5/2026
3h 55m
No alerts
Replay Analysis
N35236BOEING Boeing 737-800
→
8/5/2026
3h 2m
No alerts
Replay Analysis
N76517BOEING Boeing 737-800
→
8/5/2026
5h 56m
No alerts
Replay Analysis
N12216BOEING Boeing 737-800
→
8/5/2026
2h 8m
No alerts
Replay Analysis
N12216BOEING Boeing 737-800
→
8/4/2026
4h 14m
No alerts
Replay Analysis
N12216BOEING Boeing 737-800
→
8/4/2026
1h 43m
No alerts
Replay Analysis
N17433BOEING Boeing 737 MAX 9
→
8/4/2026
5h 27m
No alerts
Replay Analysis
N37298BOEING Boeing 737-800
→
8/4/2026
40m
No alerts
Replay Analysis
N37298BOEING Boeing 737-800
→
8/3/2026
3h 54m
No alerts
Replay Analysis
N37298BOEING Boeing 737-800
→
8/3/2026
3h 14m
No alerts
Replay Analysis
N37540BOEING Boeing 737 MAX 9
→
8/3/2026
5h 46m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window