UAL543 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 AIRBUS Airbus A319. Typical block time is 2h 28m. SkyMeter has observed 219 legs of this flight number via ADS-B.

✈
FLIGHTS
219
last 90 days
⏱
AVG DURATION
2h 28m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 8/14/2026
first → last seen
🗺
ROUTES / TYPES
14 / 10
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

8
KORD → KSFO
81
avg 4h 7m · Chicago O'Hare → San Francisco
KSFO → KSLC
58
avg 1h 45m · San Francisco → Salt Lake City
KBUF → KORD
47
avg 1h 31m · Buffalo Niagara → Chicago O'Hare
KHAF → KSLC
5
avg 1h 38m · Half Moon Bay → Salt Lake City
KOAK → KSLC
3
avg 1h 45m · Metropolitan Oakland → Salt Lake City
US-0188 → KSLC
2
avg 1h 22m · Coast Guard Air Station San Francisco → Salt Lake City
KSFO → KBOI
1
avg 3h 14m · San Francisco → Boise Air Terminal/Gowen Field
3IL0 → KSFO
1
avg 4h 7m · Patten Industries Heliport → San Francisco

Aircraft types

Equipment used on this number

10
A319 AIRBUS Airbus A319
132
B753 BOEING Boeing 757-300
46
B772 BOEING Boeing 777-200
36
B739 BOEING Boeing 737-900
30
A320 AIRBUS Airbus A320
22
B788 BOEING Boeing 787-8 BBJ/Dreamliner
11
B737 BOEING Boeing 737-700
6
A21N AIRBUS Airbus A321 Neo
4
B39M BOEING Boeing 737 MAX 9
2
B77W BOEING Boeing 777-300ER
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 UAL543

30
N26909BOEING Boeing 787-8 BBJ/Dreamliner
→
8/14/2026
4h 29m
No alerts
Replay Analysis
N37273BOEING Boeing 737-800
→
8/14/2026
1h 34m
No alerts
Replay Analysis
N81110
→
8/13/2026
4h 20m
No alerts
Replay Analysis
N842UAAIRBUS Airbus A319
→
8/13/2026
1h 36m
No alerts
Replay Analysis
N81110
→
8/12/2026
2h 53m
No alerts
Replay Analysis
N848UAAIRBUS Airbus A319
→
8/12/2026
1h 38m
No alerts
Replay Analysis
N20904BOEING Boeing 787-8 BBJ/Dreamliner
→
8/11/2026
3h 52m
No alerts
Replay Analysis
N20904BOEING Boeing 787-8 BBJ/Dreamliner
→
8/11/2026
7m
No alerts
Replay Analysis
N846UAAIRBUS Airbus A319
→
8/11/2026
1h 23m
No alerts
Replay Analysis
N75851BOEING Boeing 757-300
→
8/10/2026
4h 2m
No alerts
Replay Analysis
N811UAAIRBUS Airbus A319
→
8/10/2026
1h 36m
No alerts
Replay Analysis
N57855BOEING Boeing 757-300
→
8/9/2026
4h 6m
No alerts
Replay Analysis
N24510AIRBUS Airbus A321 Neo
→
8/8/2026
3h 54m
No alerts
Replay Analysis
N464UAAIRBUS Airbus A320
→
8/8/2026
48m
No alerts
Replay Analysis
N464UAAIRBUS Airbus A320
→
8/7/2026
57m
No alerts
Replay Analysis
N464UAAIRBUS Airbus A320
→
8/7/2026
1h 46m
No alerts
Replay Analysis
N57863BOEING Boeing 757-300
→
8/7/2026
3h 59m
No alerts
Replay Analysis
N57863BOEING Boeing 757-300
→
8/7/2026
11m
No alerts
Replay Analysis
N847UAAIRBUS Airbus A319
→
8/7/2026
1h 56m
No alerts
Replay Analysis
N75851BOEING Boeing 757-300
→
8/6/2026
4h 2m
No alerts
Replay Analysis
N849UAAIRBUS Airbus A319
→
8/6/2026
1h 29m
No alerts
Replay Analysis
N56859BOEING Boeing 757-300
→
8/5/2026
4h 11m
No alerts
Replay Analysis
N889UAAIRBUS Airbus A319
→
8/5/2026
1h 7m
No alerts
Replay Analysis
N889UAAIRBUS Airbus A319
→
8/4/2026
40m
No alerts
Replay Analysis
N889UAAIRBUS Airbus A319
→
8/4/2026
1h 48m
No alerts
Replay Analysis
N75851BOEING Boeing 757-300
→
8/4/2026
4h 11m
No alerts
Replay Analysis
N806UAAIRBUS Airbus A319
→
8/4/2026
1h 14m
No alerts
Replay Analysis
N806UAAIRBUS Airbus A319
→
8/3/2026
25m
No alerts
Replay Analysis
N806UAAIRBUS Airbus A319
→
8/3/2026
1h 39m
No alerts
Replay Analysis
N57868BOEING Boeing 757-300
→
8/3/2026
4h 16m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window