UAL686 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 737-900. Typical block time is 2h 51m. SkyMeter has observed 159 legs of this flight number via ADS-B.

✈
FLIGHTS
159
last 90 days
⏱
AVG DURATION
2h 51m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 07/19/2026
first → last seen
🗺
ROUTES / TYPES
14 / 9
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

10
KSFO → KIAH
73
avg 3h 39m · San Francisco → George Bush Intercontinental Houston
KIAH → KMSY
27
avg 50m · George Bush Intercontinental Houston → Louis Armstrong New Orleans
KIAH → KLGA
20
avg 3h 9m · George Bush Intercontinental Houston → La Guardia
KLGA → KORD
20
avg 2h 19m · La Guardia → Chicago O'Hare
KHAF → KIAH
7
avg 3h 40m · Half Moon Bay → George Bush Intercontinental Houston
KOAK → KIAH
1
avg 3h 37m · Metropolitan Oakland → George Bush Intercontinental Houston
KSFO → KIAD
1
avg 8h 5m · San Francisco → Washington Dulles
KIAH → KGPT
1
avg 1h 23m · George Bush Intercontinental Houston → Gulfport Biloxi
KGPT → KMSY
1
avg 21m · Gulfport Biloxi → Louis Armstrong New Orleans
KIAH → KBDL
1
avg 3h 54m · George Bush Intercontinental Houston → Bradley

Aircraft types

Equipment used on this number

9
B739 BOEING Boeing 737-900
61
B738 BOEING Boeing 737-800
38
B38M BOEING Boeing 737 MAX 8
26
B39M BOEING Boeing 737 MAX 9
26
A320 AIRBUS Airbus A320
4
A21N AIRBUS Airbus A321 Neo
1
A319 AIRBUS Airbus A319
1
B737 BOEING Boeing 737-700
1
B789 BOEING Boeing 787-9 Dreamliner
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 UAL686

30
N68891BOEING Boeing 737-900
→
07/19/2026
3h 46m
No alerts
Replay Analysis
N75428BOEING Boeing 737-900
→
07/18/2026
3h 41m
No alerts
Replay Analysis
N68843BOEING Boeing 737-900
→
07/17/2026
3h 49m
No alerts
Replay Analysis
N69840BOEING Boeing 737-900
→
07/16/2026
3h 38m
No alerts
Replay Analysis
N27519BOEING Boeing 737 MAX 9
→
07/15/2026
4h 21m
No alerts
Replay Analysis
N37462BOEING Boeing 737-900
→
07/14/2026
4h 0m
No alerts
Replay Analysis
N66831BOEING Boeing 737-900
→
07/13/2026
4h 17m
No alerts
Replay Analysis
N37466BOEING Boeing 737-900
→
07/12/2026
3h 53m
No alerts
Replay Analysis
N64809BOEING Boeing 737-900
→
07/11/2026
3h 47m
No alerts
Replay Analysis
N37413BOEING Boeing 737-900
→
07/10/2026
3h 30m
No alerts
Replay Analysis
N53442BOEING Boeing 737-900
→
07/09/2026
3h 44m
No alerts
Replay Analysis
N69818BOEING Boeing 737-900
→
07/08/2026
3h 37m
No alerts
Replay Analysis
N38417BOEING Boeing 737-900
→
07/07/2026
3h 43m
No alerts
Replay Analysis
N62889BOEING Boeing 737-900
→
07/06/2026
3h 36m
No alerts
Replay Analysis
N39415BOEING Boeing 737-900
→
07/05/2026
3h 36m
No alerts
Replay Analysis
N36472BOEING Boeing 737-900
→
07/04/2026
3h 51m
No alerts
Replay Analysis
N68821BOEING Boeing 737-900
→
07/03/2026
3h 32m
No alerts
Replay Analysis
N61101BOEING Boeing 787-9 Dreamliner
→
07/02/2026
3h 46m
No alerts
Replay Analysis
N64844BOEING Boeing 737-900
→
07/01/2026
3h 49m
No alerts
Replay Analysis
N68802BOEING Boeing 737-900
→
06/30/2026
3h 30m
No alerts
Replay Analysis
N68823BOEING Boeing 737-900
→
06/29/2026
3h 22m
No alerts
Replay Analysis
N17407BOEING Boeing 737 MAX 9
→
06/28/2026
3h 55m
No alerts
Replay Analysis
N75429BOEING Boeing 737-900
→
06/27/2026
3h 28m
No alerts
Replay Analysis
N28478BOEING Boeing 737-900
→
06/26/2026
3h 39m
No alerts
Replay Analysis
N57439BOEING Boeing 737-900
→
06/25/2026
3h 35m
No alerts
Replay Analysis
N27251BOEING Boeing 737 MAX 8
→
06/24/2026
53m
No alerts
Replay Analysis
N68805BOEING Boeing 737-900
→
06/24/2026
3h 40m
No alerts
Replay Analysis
N435UAAIRBUS Airbus A320
→
06/23/2026
58m
No alerts
Replay Analysis
N61887BOEING Boeing 737-900
→
06/23/2026
3h 37m
No alerts
Replay Analysis
N17285BOEING Boeing 737 MAX 8
→
06/22/2026
50m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window