UAL3881

UNITED AIRLINES INC · SEA → IAH

UAL3881 is operated by UNITED AIRLINES INC between Seattle Tacoma International Airport (KSEA) and George Bush Intercontinental Houston Airport (KIAH). The flight is most often flown by a BOEING Boeing 737-900. Typical block time is 1h 59m. SkyMeter has observed 22 legs of this flight number via ADS-B.

✈
FLIGHTS
22
last 90 days
⏱
AVG DURATION
1h 59m
tracked time
📅
SERVICE PERIOD
5/31/2025 → 9/5/2026
first → last seen
🗺
ROUTES / TYPES
21 / 7
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

10
KLCQ → KIAH
1
avg 1h 39m · Lake City Gateway → George Bush Intercontinental Houston
KORD → KRFD
1
avg 39m · Chicago O'Hare → Chicago Rockford
KMLB → KIAH
1
avg 1h 56m · Melbourne → George Bush Intercontinental Houston
KSFO → KDFW
1
avg 3h 40m · San Francisco → Dallas Fort Worth
KAMA → KIAH
1
avg 1h 12m · Rick Husband Amarillo → George Bush Intercontinental Houston
KMLB → KEWR
1
avg 2h 11m · Melbourne → Newark Liberty
KSEA → KIAH
1
avg 4h 7m · Seattle Tacoma → George Bush Intercontinental Houston
KORD → KLCQ
1
avg 1h 54m · Chicago O'Hare → Lake City Gateway
KIAD → KINT
1
avg 56m · Washington Dulles → Smith Reynolds
KDEN → KIAB
1
avg 1h 12m · Denver → Mc Connell Air Force Base

Aircraft types

Equipment used on this number

7
B739 BOEING Boeing 737-900
7
A21N AIRBUS Airbus A321 Neo
4
B738 BOEING Boeing 737-800
3
B789 BOEING Boeing 787-9 Dreamliner
3
B737 BOEING Boeing 737-700
2
B39M BOEING Boeing 737 MAX 9
2
A320 AIRBUS Airbus A320
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 UAL3881

30
N61109
→
9/5/2026
23m
No alerts
Replay Analysis
N61109
→
9/4/2026
2h 14m
No alerts
Replay Analysis
N23721BOEING Boeing 737-700
→
8/30/2026
2h 10m
No alerts
Replay Analysis
N67827BOEING Boeing 737-900
→
8/27/2026
55m
No alerts
Replay Analysis
N73251BOEING Boeing 737-800
→
8/25/2026
1h 49m
No alerts
Replay Analysis
N37456BOEING Boeing 737-900
→
8/23/2026
2h 11m
No alerts
Replay Analysis
N37456BOEING Boeing 737-900
→
8/22/2026
4h 6m
No alerts
Replay Analysis
N37456BOEING Boeing 737-900
→
8/22/2026
1h 54m
No alerts
Replay Analysis
N36962BOEING Boeing 787-9 Dreamliner
→
8/16/2026
36m
No alerts
Replay Analysis
N13718BOEING Boeing 737-700
→
8/12/2026
1h 56m
No alerts
Replay Analysis
N38479BOEING Boeing 737-900
→
8/10/2026
1h 13m
No alerts
Replay Analysis
N64321AIRBUS Airbus A321 Neo
→
8/5/2026
3h 40m
No alerts
Replay Analysis
N14214BOEING Boeing 737-800
→
8/5/2026
39m
No alerts
Replay Analysis
N62894BOEING Boeing 737-900
→
8/3/2026
1h 13m
No alerts
Replay Analysis
N24555AIRBUS Airbus A321 Neo
→
7/24/2026
2h 1m
No alerts
Replay Analysis
N47569BOEING Boeing 737 MAX 9
→
7/13/2026
1h 36m
No alerts
Replay Analysis
N33203BOEING Boeing 737-800
→
7/11/2026
2h 16m
No alerts
Replay Analysis
N439UAAIRBUS Airbus A320
→
7/7/2026
1h 54m
No alerts
Replay Analysis
N37513BOEING Boeing 737 MAX 9
→
7/5/2026
1h 11m
No alerts
Replay Analysis
N44501AIRBUS Airbus A321 Neo
→
6/30/2026
1h 38m
No alerts
Replay Analysis
N15969BOEING Boeing 787-9 Dreamliner
→
6/30/2026
1h 58m
No alerts
Replay Analysis
N15969BOEING Boeing 787-9 Dreamliner
→
6/29/2026
6h 26m
No alerts
Replay Analysis
N44550AIRBUS Airbus A321 Neo
→
6/17/2026
2h 24m
No alerts
Replay Analysis
N53442BOEING Boeing 737-900
→
6/15/2026
1h 12m
No alerts
Replay Analysis
N66828BOEING Boeing 737-900
→
6/2/2026
1h 46m
No alerts
Replay Analysis
N36444BOEING Boeing 737-900
→
5/29/2026
1h 20m
No alerts
Replay Analysis
N36444BOEING Boeing 737-900
→
5/29/2026
8m
No alerts
Replay Analysis
N16732BOEING Boeing 737-700
→
5/27/2026
2h 44m
No alerts
Replay Analysis
N77520BOEING Boeing 737-800
→
5/23/2026
1h 15m
No alerts
Replay Analysis
N16701BOEING Boeing 737-700
→
5/22/2026
2h 40m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window