UAL3881

UNITED AIRLINES INC · ORD → INT

UAL3881 is operated by UNITED AIRLINES INC between Chicago O'Hare International Airport (KORD) and Smith Reynolds Airport (KINT). The flight is most often flown by a BOEING Boeing 737-900. Typical block time is 1h 53m. SkyMeter has observed 7 legs of this flight number via ADS-B.

✈
FLIGHTS
7
last 90 days
⏱
AVG DURATION
1h 53m
tracked time
📅
SERVICE PERIOD
04/21/2026 → 06/02/2026
first → last seen
🗺
ROUTES / TYPES
7 / 6
city pairs · airframes
⚠
INCIDENT RATE
14.3%
1 flagged

Routes flown

By count · last 90 days

5
KORD → KINT
1
avg 1h 24m · Chicago O'Hare → Smith Reynolds
KIAH → KMLB
1
avg 1h 46m · George Bush Intercontinental Houston → Melbourne
KORD → KIAB
1
avg 1h 29m · Chicago O'Hare → Mc Connell Air Force Base
KMIA → KIAH
1
avg 2h 41m · Miami → George Bush Intercontinental Houston
KIAB → KDEN
1
avg 1h 15m · Mc Connell Air Force Base → Denver

Aircraft types

Equipment used on this number

6
B739 BOEING Boeing 737-900
2
A320 AIRBUS Airbus A320
1
A319 AIRBUS Airbus A319
1
B738 BOEING Boeing 737-800
1
B737 BOEING Boeing 737-700
1
B772 BOEING Boeing 777-200
1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
1
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 7 operations of UAL3881

7
N66828BOEING Boeing 737-900
→
06/02/2026
1h 46m
No alerts
Replay Analysis
N36444BOEING Boeing 737-900
→
05/29/2026
1h 28m
No alerts
Replay Analysis
N77520BOEING Boeing 737-800
→
05/23/2026
1h 15m
△ Unstable
Replay Analysis
N16701BOEING Boeing 737-700
→
05/22/2026
2h 40m
No alerts
Replay Analysis
N37018BOEING Boeing 777-200
→
05/18/2026
3h 38m
No alerts
Replay Analysis
N884UAAIRBUS Airbus A319
→
04/23/2026
1h 0m
No alerts
Replay Analysis
N435UAAIRBUS Airbus A320
→
04/21/2026
1h 24m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window