UAL604 is operated by UNITED AIRLINES INC between San Francisco International Airport (KSFO) and George Bush Intercontinental Houston Airport (KIAH). The flight is most often flown by a BOEING Boeing 777-200. Typical block time is 3h 8m. SkyMeter has observed 44 legs of this flight number via ADS-B.

✈
FLIGHTS
44
last 90 days
⏱
AVG DURATION
3h 8m
tracked time
📅
SERVICE PERIOD
04/17/2026 → 06/03/2026
first → last seen
🗺
ROUTES / TYPES
4 / 5
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

3
KSFO → KIAH
28
avg 3h 27m · San Francisco → George Bush Intercontinental Houston
KIAH → KBWI
14
avg 2h 38m · George Bush Intercontinental Houston → Baltimore/Washington International Thurgood Marshall
62TS → KBWI
1
avg 2h 33m · Gateway Helistop → Baltimore/Washington International Thurgood Marshall

Aircraft types

Equipment used on this number

5
B772 BOEING Boeing 777-200
29
B38M BOEING Boeing 737 MAX 8
4
B737 BOEING Boeing 737-700
4
B39M BOEING Boeing 737 MAX 9
4
B738 BOEING Boeing 737-800
3

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 UAL604

30
N12754BOEING Boeing 737-700
→
06/03/2026
2h 44m
No alerts
Replay Analysis
N769UABOEING Boeing 777-200
→
06/03/2026
3h 32m
No alerts
Replay Analysis
N12754BOEING Boeing 737-700
→
06/02/2026
2h 42m
No alerts
Replay Analysis
N779UABOEING Boeing 777-200
→
06/02/2026
3h 25m
No alerts
Replay Analysis
N15710BOEING Boeing 737-700
→
06/01/2026
2h 38m
No alerts
Replay Analysis
N220UABOEING Boeing 777-200
→
06/01/2026
3h 23m
No alerts
Replay Analysis
N211UABOEING Boeing 777-200
→
05/31/2026
3h 18m
No alerts
Replay Analysis
N17432BOEING Boeing 737 MAX 9
→
05/29/2026
2h 36m
No alerts
Replay Analysis
N222UABOEING Boeing 777-200
→
05/29/2026
3h 36m
No alerts
Replay Analysis
N27539BOEING Boeing 737 MAX 9
→
05/28/2026
2h 30m
No alerts
Replay Analysis
N776UABOEING Boeing 777-200
→
05/28/2026
3h 23m
No alerts
Replay Analysis
N769UABOEING Boeing 777-200
→
05/27/2026
3h 26m
No alerts
Replay Analysis
N211UABOEING Boeing 777-200
→
05/26/2026
3h 39m
No alerts
Replay Analysis
N37507BOEING Boeing 737 MAX 9
→
05/25/2026
2h 33m
No alerts
Replay Analysis
N215UABOEING Boeing 777-200
→
05/25/2026
3h 19m
No alerts
Replay Analysis
N781UABOEING Boeing 777-200
→
05/24/2026
3h 34m
No alerts
Replay Analysis
N779UABOEING Boeing 777-200
→
05/23/2026
3h 55m
No alerts
Replay Analysis
N776UABOEING Boeing 777-200
→
05/22/2026
2h 6m
No alerts
Replay Analysis
N54711BOEING Boeing 737-700
→
05/21/2026
2h 35m
No alerts
Replay Analysis
N215UABOEING Boeing 777-200
→
05/21/2026
3h 38m
No alerts
Replay Analysis
N769UABOEING Boeing 777-200
→
05/20/2026
3h 48m
No alerts
Replay Analysis
N779UABOEING Boeing 777-200
→
05/18/2026
3h 26m
No alerts
Replay Analysis
N211UABOEING Boeing 777-200
→
05/17/2026
3h 19m
No alerts
Replay Analysis
N17557BOEING Boeing 737 MAX 9
→
05/16/2026
2h 32m
No alerts
Replay Analysis
N781UABOEING Boeing 777-200
→
05/16/2026
3h 17m
No alerts
Replay Analysis
N37263BOEING Boeing 737-800
→
05/15/2026
2h 42m
No alerts
Replay Analysis
N773UABOEING Boeing 777-200
→
05/15/2026
3h 23m
No alerts
Replay Analysis
N77296BOEING Boeing 737-800
→
05/14/2026
2h 39m
No alerts
Replay Analysis
N215UABOEING Boeing 777-200
→
05/14/2026
3h 21m
No alerts
Replay Analysis
N774UABOEING Boeing 777-200
→
05/13/2026
3h 23m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window