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 737-800. Typical block time is 2h 40m. SkyMeter has observed 52 legs of this flight number via ADS-B.

✈
FLIGHTS
52
last 90 days
⏱
AVG DURATION
2h 40m
tracked time
📅
SERVICE PERIOD
04/17/2026 → 06/03/2026
first → last seen
🗺
ROUTES / TYPES
14 / 6
city pairs · airframes
⚠
INCIDENT RATE
15.4%
8 flagged

Routes flown

By count · last 90 days

10
KSFO → KIAH
21
avg 3h 35m · San Francisco → George Bush Intercontinental Houston
KLGA → KORD
7
avg 2h 25m · La Guardia → Chicago O'Hare
KIAH → KLGA
6
avg 3h 7m · George Bush Intercontinental Houston → La Guardia
KIAH → KMSY
5
avg 49m · George Bush Intercontinental Houston → Louis Armstrong New Orleans
62TS → KLGA
2
avg 2h 59m · Gateway Helistop → La Guardia
62TS → KMSY
2
avg 45m · Gateway Helistop → Louis Armstrong New Orleans
MS67 → KMSY
1
avg 21m · Gulf Coast Community Hosp-Emerg Heliport → Louis Armstrong New Orleans
62TS → KTEB
1
avg 3h 0m · Gateway Helistop → Teterboro
KIAH → KGPT
1
avg 1h 23m · George Bush Intercontinental Houston → Gulfport Biloxi
62TS → KBDL
1
avg 3h 54m · Gateway Helistop → Bradley

Aircraft types

Equipment used on this number

6
B738 BOEING Boeing 737-800
19
B739 BOEING Boeing 737-900
13
B39M BOEING Boeing 737 MAX 9
10
B38M BOEING Boeing 737 MAX 8
7
A320 AIRBUS Airbus A320
2
B737 BOEING Boeing 737-700
1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
8
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
N27274BOEING Boeing 737 MAX 8
→
06/03/2026
52m
No alerts
Replay Analysis
N37434BOEING Boeing 737-900
→
06/03/2026
3h 49m
No alerts
Replay Analysis
N481UAAIRBUS Airbus A320
→
06/02/2026
48m
No alerts
Replay Analysis
N37471BOEING Boeing 737-900
→
06/02/2026
3h 41m
No alerts
Replay Analysis
N17310BOEING Boeing 737 MAX 8
→
06/01/2026
50m
No alerts
Replay Analysis
N66893BOEING Boeing 737-900
→
06/01/2026
3h 32m
No alerts
Replay Analysis
N47370BOEING Boeing 737 MAX 8
→
05/31/2026
20m
No alerts
Replay Analysis
N47370BOEING Boeing 737 MAX 8
→
05/31/2026
1h 23m
△ Unstable
Replay Analysis
N39463BOEING Boeing 737-900
→
05/31/2026
3h 27m
No alerts
Replay Analysis
N47282BOEING Boeing 737 MAX 8
→
05/29/2026
46m
No alerts
Replay Analysis
N37434BOEING Boeing 737-900
→
05/29/2026
1h 38m
No alerts
Replay Analysis
N77581BOEING Boeing 737 MAX 9
→
05/28/2026
44m
No alerts
Replay Analysis
N39461BOEING Boeing 737-900
→
05/28/2026
3h 48m
No alerts
Replay Analysis
N494UAAIRBUS Airbus A320
→
05/26/2026
33m
No alerts
Replay Analysis
N37466BOEING Boeing 737-900
→
05/26/2026
3h 35m
No alerts
Replay Analysis
N16713BOEING Boeing 737-700
→
05/25/2026
46m
No alerts
Replay Analysis
N38451BOEING Boeing 737-900
→
05/25/2026
3h 49m
No alerts
Replay Analysis
N69833BOEING Boeing 737-900
→
05/24/2026
3h 46m
No alerts
Replay Analysis
N63820BOEING Boeing 737-900
→
05/23/2026
3h 33m
No alerts
Replay Analysis
N17254BOEING Boeing 737 MAX 8
→
05/21/2026
46m
No alerts
Replay Analysis
N37464BOEING Boeing 737-900
→
05/21/2026
3h 35m
No alerts
Replay Analysis
N12221BOEING Boeing 737-800
→
05/21/2026
39m
△ Unstable
Replay Analysis
N12221BOEING Boeing 737-800
→
05/20/2026
3h 54m
No alerts
Replay Analysis
N37447BOEING Boeing 737 MAX 9
→
05/20/2026
3h 35m
No alerts
Replay Analysis
N77296BOEING Boeing 737-800
→
05/18/2026
3h 19m
No alerts
Replay Analysis
N27546BOEING Boeing 737 MAX 9
→
05/18/2026
3h 28m
No alerts
Replay Analysis
N14242BOEING Boeing 737-800
→
05/18/2026
2h 21m
No alerts
Replay Analysis
N26232BOEING Boeing 737-800
→
05/17/2026
3h 7m
No alerts
Replay Analysis
N77543BOEING Boeing 737 MAX 9
→
05/17/2026
3h 19m
No alerts
Replay Analysis
N37577BOEING Boeing 737 MAX 9
→
05/16/2026
3h 40m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window