UAL2251

UNITED AIRLINES INC · ORD → SFO

UAL2251 is operated by UNITED AIRLINES INC between Chicago O'Hare International Airport (KORD) and San Francisco International Airport (KSFO). The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 3h 58m. SkyMeter has observed 104 legs of this flight number via ADS-B.

✈
FLIGHTS
104
last 90 days
⏱
AVG DURATION
3h 58m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 9/4/2026
first → last seen
🗺
ROUTES / TYPES
3 / 3
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

1
KORD → KSFO
83
avg 4h 25m · Chicago O'Hare → San Francisco

Aircraft types

Equipment used on this number

3
B39M BOEING Boeing 737 MAX 9
163
B739 BOEING Boeing 737-900
94
A21N AIRBUS Airbus A321 Neo
7

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 UAL2251

30
N17435BOEING Boeing 737 MAX 9
→
9/4/2026
2h 19m
No alerts
Replay Analysis
N37508BOEING Boeing 737 MAX 9
→
9/4/2026
3h 30m
No alerts
Replay Analysis
N77598BOEING Boeing 737 MAX 9
→
9/2/2026
2h 8m
No alerts
Replay Analysis
N77544BOEING Boeing 737 MAX 9
→
9/2/2026
1h 32m
No alerts
Replay Analysis
N77544BOEING Boeing 737 MAX 9
→
9/1/2026
2h 38m
No alerts
Replay Analysis
N77544BOEING Boeing 737 MAX 9
→
9/1/2026
4h 11m
No alerts
Replay Analysis
N47569BOEING Boeing 737 MAX 9
→
9/1/2026
3h 29m
No alerts
Replay Analysis
N47569BOEING Boeing 737 MAX 9
→
8/31/2026
58m
No alerts
Replay Analysis
N47569BOEING Boeing 737 MAX 9
→
8/31/2026
4h 27m
No alerts
Replay Analysis
N17432BOEING Boeing 737 MAX 9
→
8/31/2026
2h 15m
No alerts
Replay Analysis
N17432BOEING Boeing 737 MAX 9
→
8/30/2026
4h 34m
No alerts
Replay Analysis
N17432BOEING Boeing 737 MAX 9
→
8/30/2026
2h 18m
No alerts
Replay Analysis
N37540BOEING Boeing 737 MAX 9
→
8/30/2026
1h 32m
No alerts
Replay Analysis
N37540BOEING Boeing 737 MAX 9
→
8/29/2026
2h 36m
No alerts
Replay Analysis
N37540BOEING Boeing 737 MAX 9
→
8/29/2026
4h 33m
No alerts
Replay Analysis
N37540BOEING Boeing 737 MAX 9
→
8/29/2026
7m
No alerts
Replay Analysis
N77471BOEING Boeing 737 MAX 9
→
8/29/2026
2h 26m
No alerts
Replay Analysis
N77471BOEING Boeing 737 MAX 9
→
8/28/2026
4h 34m
No alerts
Replay Analysis
N77471BOEING Boeing 737 MAX 9
→
8/28/2026
2h 7m
No alerts
Replay Analysis
N17444BOEING Boeing 737 MAX 9
→
8/28/2026
1h 58m
No alerts
Replay Analysis
N17444BOEING Boeing 737 MAX 9
→
8/27/2026
4h 5m
No alerts
Replay Analysis
N17444BOEING Boeing 737 MAX 9
→
8/27/2026
2h 7m
No alerts
Replay Analysis
N77543BOEING Boeing 737 MAX 9
→
8/27/2026
1h 37m
No alerts
Replay Analysis
N77543BOEING Boeing 737 MAX 9
→
8/26/2026
2h 39m
No alerts
Replay Analysis
N77543BOEING Boeing 737 MAX 9
→
8/26/2026
4h 17m
No alerts
Replay Analysis
N27419BOEING Boeing 737 MAX 9
→
8/26/2026
1h 42m
No alerts
Replay Analysis
N27419BOEING Boeing 737 MAX 9
→
8/25/2026
4h 42m
No alerts
Replay Analysis
N27419BOEING Boeing 737 MAX 9
→
8/25/2026
3h 0m
No alerts
Replay Analysis
N37554BOEING Boeing 737 MAX 9
→
8/25/2026
1h 52m
No alerts
Replay Analysis
N37554BOEING Boeing 737 MAX 9
→
8/24/2026
4h 34m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window