Flight Status & Tracker

UAL1577

UNITED AIRLINES INC · ORD → SFO · Last tracked Oct 10, 2026

UAL1577 is a flight number operated by UNITED AIRLINES INC between Chicago O'Hare International Airport (KORD) and San Francisco International Airport (KSFO). SkyMeter last tracked UAL1577 on October 10, 2026. The flight is most often flown by a BOEING Boeing 757-300. Typical block time is 2h 40m. SkyMeter has observed 186 legs of this flight number via ADS-B.

SkyMeter tracks historical flight activity from ADS-B data — this is not a live gate-to-gate status feed.

✈
FLIGHTS
186
last 90 days
⏱
AVG DURATION
2h 40m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 10/10/2026
first → last seen
🗺
ROUTES / TYPES
13 / 7
city pairs · airframes
⚠
INCIDENT RATE
0.5%
1 flagged

Routes flown

By count · last 90 days

10
KORD → KSFO
56
avg 4h 22m · Chicago O'Hare → San Francisco
KSFO → KSAN
40
avg 1h 43m · San Francisco → San Diego
KTYS → KORD
17
avg 1h 25m · McGhee Tyson → Chicago O'Hare
KSFO → KSEA
16
avg 2h 1m · San Francisco → Seattle Tacoma
KHAF → KSAN
4
avg 1h 53m · Half Moon Bay → San Diego
US-2773 → KSFO
4
avg 24m · Ravenswood Substation Helipad → San Francisco
US-2362 → KSFO
4
avg 13m · San Mateo → San Francisco
US-2390 → KSFO
3
avg 28m · Cooley Field → San Francisco
US-0188 → KSAN
2
avg 1h 57m · Coast Guard Air Station San Francisco → San Diego
KOAK → KSEA
2
avg 2h 15m · Metropolitan Oakland → Seattle Tacoma

Aircraft types

Equipment used on this number

7
B753 BOEING Boeing 757-300
192
B38M BOEING Boeing 737 MAX 8
44
A320 AIRBUS Airbus A320
29
A319 AIRBUS Airbus A319
10
B788 BOEING Boeing 787-8 BBJ/Dreamliner
3
ST75 ST75
3
B39M BOEING Boeing 737 MAX 9
2

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 30 operations of UAL1577

30
N57855BOEING Boeing 757-300
→
10/10/2026
4h 1m
No alerts
Replay Analysis
N892UAAIRBUS Airbus A319
→
10/10/2026
1h 33m
No alerts
Replay Analysis
N27271BOEING Boeing 737 MAX 8
→
10/10/2026
2h 3m
No alerts
Replay Analysis
N57862BOEING Boeing 757-300
→
10/10/2026
48m
No alerts
Replay Analysis
N57862BOEING Boeing 757-300
→
10/9/2026
4h 8m
No alerts
Replay Analysis
N57862BOEING Boeing 757-300
→
10/9/2026
3h 19m
No alerts
Replay Analysis
N455UAAIRBUS Airbus A320
→
10/9/2026
1h 25m
No alerts
Replay Analysis
N17358BOEING Boeing 737 MAX 8
→
10/9/2026
1h 42m
No alerts
Replay Analysis
N75858BOEING Boeing 757-300
→
10/9/2026
20m
No alerts
Replay Analysis
N75858BOEING Boeing 757-300
→
10/8/2026
4h 0m
No alerts
Replay Analysis
N75858BOEING Boeing 757-300
→
10/8/2026
3h 39m
No alerts
Replay Analysis
N459UAAIRBUS Airbus A320
→
10/8/2026
1h 20m
No alerts
Replay Analysis
N47360BOEING Boeing 737 MAX 8
→
10/8/2026
1h 31m
No alerts
Replay Analysis
N75854BOEING Boeing 757-300
→
10/7/2026
4h 23m
No alerts
Replay Analysis
N465UAAIRBUS Airbus A320
→
10/7/2026
1h 23m
No alerts
Replay Analysis
N37348BOEING Boeing 737 MAX 8
→
10/7/2026
1h 37m
No alerts
Replay Analysis
N57863BOEING Boeing 757-300
→
10/6/2026
3h 57m
No alerts
Replay Analysis
N892UAAIRBUS Airbus A319
→
10/6/2026
1h 12m
No alerts
Replay Analysis
N47332BOEING Boeing 737 MAX 8
→
10/6/2026
1h 45m
No alerts
Replay Analysis
N75861BOEING Boeing 757-300
→
10/6/2026
6m
No alerts
Replay Analysis
N75861BOEING Boeing 757-300
→
10/5/2026
4h 18m
No alerts
Replay Analysis
N840UAAIRBUS Airbus A319
→
10/5/2026
1h 34m
No alerts
Replay Analysis
N17296BOEING Boeing 737 MAX 8
→
10/5/2026
1h 47m
No alerts
Replay Analysis
N75854BOEING Boeing 757-300
→
10/5/2026
12m
No alerts
Replay Analysis
N75854BOEING Boeing 757-300
→
10/4/2026
4h 18m
No alerts
Replay Analysis
N496UAAIRBUS Airbus A320
→
10/4/2026
1h 16m
No alerts
Replay Analysis
N17272BOEING Boeing 737 MAX 8
→
10/4/2026
1h 29m
No alerts
Replay Analysis
N57862BOEING Boeing 757-300
→
10/3/2026
4h 12m
No alerts
Replay Analysis
N437UAAIRBUS Airbus A320
→
10/3/2026
21m
No alerts
Replay Analysis
N437UAAIRBUS Airbus A320
→
10/3/2026
1h 24m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window