UAL2331

UNITED AIRLINES INC · IAD → ORD

UAL2331 is operated by UNITED AIRLINES INC between Washington Dulles International Airport (KIAD) and Chicago O'Hare International Airport (KORD). The flight is most often flown by a AIRBUS Airbus A321 Neo. Typical block time is 1h 50m. SkyMeter has observed 243 legs of this flight number via ADS-B.

✈
FLIGHTS
243
last 90 days
⏱
AVG DURATION
1h 50m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 07/19/2026
first → last seen
🗺
ROUTES / TYPES
15 / 9
city pairs · airframes
⚠
INCIDENT RATE
0.4%
1 flagged

Routes flown

By count · last 90 days

10
KIAD → KORD
73
avg 2h 0m · Washington Dulles → Chicago O'Hare
KTPA → KIAD
69
avg 2h 7m · Tampa → Washington Dulles
KORD → KBOS
62
avg 1h 59m · Chicago O'Hare → General Edward Lawrence Logan
IL79 → KBOS
2
avg 2h 1m · Presence Resurrection Medical Center Heliport → General Edward Lawrence Logan
KORD → KMCI
2
avg 1h 8m · Chicago O'Hare → Kansas City
7IL4 → KBOS
1
avg 1h 43m · Northwest Community Hospital Heliport → General Edward Lawrence Logan
6IS5 → KBOS
1
avg 1h 54m · Presence Holy Family Medical Center Heliport → General Edward Lawrence Logan
76IL → KORD
1
avg 22m · Delnor Community Hospital Heliport → Chicago O'Hare
KPWK → KBOS
1
avg 1h 46m · Chicago Executive → General Edward Lawrence Logan
3IL8 → KBOS
1
avg 1h 42m · Evanston Hospital-Golf Course Site Heliport → General Edward Lawrence Logan

Aircraft types

Equipment used on this number

9
A21N AIRBUS Airbus A321 Neo
119
B739 BOEING Boeing 737-900
111
B39M BOEING Boeing 737 MAX 9
21
B752 BOEING Boeing 757-200
10
B738 BOEING Boeing 737-800
10
A320 AIRBUS Airbus A320
8
B38M BOEING Boeing 737 MAX 8
4
B737 BOEING Boeing 737-700
4
B763 BOEING Boeing 767-300
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 UAL2331

30
N58101BOEING Boeing 757-200
→
07/19/2026
15m
No alerts
Replay Analysis
N58101BOEING Boeing 757-200
→
07/19/2026
2h 0m
No alerts
Replay Analysis
N17589BOEING Boeing 737 MAX 9
→
07/19/2026
2h 2m
No alerts
Replay Analysis
N34562AIRBUS Airbus A321 Neo
→
07/19/2026
1h 45m
No alerts
Replay Analysis
N37456BOEING Boeing 737-900
→
07/18/2026
2h 13m
No alerts
Replay Analysis
N14536AIRBUS Airbus A321 Neo
→
07/18/2026
1h 47m
No alerts
Replay Analysis
N14536AIRBUS Airbus A321 Neo
→
07/17/2026
1h 57m
No alerts
Replay Analysis
N14536AIRBUS Airbus A321 Neo
→
07/17/2026
9m
No alerts
Replay Analysis
N69804BOEING Boeing 737-900
→
07/17/2026
2h 2m
No alerts
Replay Analysis
N36469BOEING Boeing 737-900
→
07/17/2026
2h 19m
No alerts
Replay Analysis
N24508AIRBUS Airbus A321 Neo
→
07/17/2026
2h 10m
No alerts
Replay Analysis
N66897BOEING Boeing 737-900
→
07/16/2026
1h 58m
No alerts
Replay Analysis
N37535BOEING Boeing 737 MAX 9
→
07/16/2026
2h 3m
No alerts
Replay Analysis
N14523AIRBUS Airbus A321 Neo
→
07/16/2026
1h 37m
No alerts
Replay Analysis
N14523AIRBUS Airbus A321 Neo
→
07/15/2026
2h 16m
No alerts
Replay Analysis
N14523AIRBUS Airbus A321 Neo
→
07/15/2026
39m
No alerts
Replay Analysis
N12116BOEING Boeing 757-200
→
07/15/2026
1h 30m
No alerts
Replay Analysis
N62883BOEING Boeing 737-900
→
07/15/2026
2h 5m
No alerts
Replay Analysis
N14509AIRBUS Airbus A321 Neo
→
07/15/2026
1h 51m
No alerts
Replay Analysis
N77542BOEING Boeing 737-800
→
07/14/2026
1h 54m
No alerts
Replay Analysis
N27213BOEING Boeing 737-800
→
07/14/2026
2h 15m
No alerts
Replay Analysis
N14533AIRBUS Airbus A321 Neo
→
07/14/2026
2h 4m
No alerts
Replay Analysis
N68843BOEING Boeing 737-900
→
07/13/2026
2h 13m
↻ Go-around
Replay Analysis
N36469BOEING Boeing 737-900
→
07/13/2026
2h 13m
No alerts
Replay Analysis
N54525AIRBUS Airbus A321 Neo
→
07/13/2026
1h 40m
No alerts
Replay Analysis
N54525AIRBUS Airbus A321 Neo
→
07/12/2026
32m
No alerts
Replay Analysis
N54525AIRBUS Airbus A321 Neo
→
07/12/2026
2h 13m
No alerts
Replay Analysis
N19130BOEING Boeing 757-200
→
07/12/2026
1h 47m
No alerts
Replay Analysis
N37474BOEING Boeing 737-900
→
07/12/2026
2h 3m
No alerts
Replay Analysis
N14518AIRBUS Airbus A321 Neo
→
07/12/2026
1h 53m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window