UAL1660

UNITED AIRLINES INC · SEA → IAH

UAL1660 is operated by UNITED AIRLINES INC between Seattle Tacoma International Airport (KSEA) and George Bush Intercontinental Houston Airport (KIAH). The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 3h 18m. SkyMeter has observed 168 legs of this flight number via ADS-B.

✈
FLIGHTS
168
last 90 days
⏱
AVG DURATION
3h 18m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/29/2026
first → last seen
🗺
ROUTES / TYPES
6 / 7
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

4
KSEA → KIAH
63
avg 3h 59m · Seattle Tacoma → George Bush Intercontinental Houston
KORD → KSEA
63
avg 4h 3m · Chicago O'Hare → Seattle Tacoma
KMSN → KORD
29
avg 38m · Dane County Regional Truax Field → Chicago O'Hare
KORD → KRNT
2
avg 4h 8m · Chicago O'Hare → Renton

Aircraft types

Equipment used on this number

7
B39M BOEING Boeing 737 MAX 9
66
A320 AIRBUS Airbus A320
55
A319 AIRBUS Airbus A319
26
B739 BOEING Boeing 737-900
17
A21N AIRBUS Airbus A321 Neo
2
B38M BOEING Boeing 737 MAX 8
1
B738 BOEING Boeing 737-800
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 UAL1660

30
N17362BOEING Boeing 737 MAX 8
→
08/29/2026
4h 8m
No alerts
Replay Analysis
N17459BOEING Boeing 737 MAX 9
→
08/26/2026
3h 58m
No alerts
Replay Analysis
N69847BOEING Boeing 737-900
→
08/25/2026
4h 0m
No alerts
Replay Analysis
N37470BOEING Boeing 737-900
→
08/24/2026
4h 3m
No alerts
Replay Analysis
N47414BOEING Boeing 737-900
→
08/23/2026
4h 0m
No alerts
Replay Analysis
N36469BOEING Boeing 737-900
→
08/22/2026
3h 58m
No alerts
Replay Analysis
N53441BOEING Boeing 737-900
→
08/19/2026
4h 10m
No alerts
Replay Analysis
N61881BOEING Boeing 737-900
→
08/18/2026
3h 53m
No alerts
Replay Analysis
N34455BOEING Boeing 737-900
→
08/17/2026
4h 8m
No alerts
Replay Analysis
N37470BOEING Boeing 737-900
→
08/16/2026
3h 54m
No alerts
Replay Analysis
N61887BOEING Boeing 737-900
→
08/15/2026
4h 10m
No alerts
Replay Analysis
N36472BOEING Boeing 737-900
→
08/14/2026
4h 18m
No alerts
Replay Analysis
N17431BOEING Boeing 737 MAX 9
→
08/12/2026
3h 49m
No alerts
Replay Analysis
N440UAAIRBUS Airbus A320
→
08/11/2026
4h 8m
No alerts
Replay Analysis
N47446BOEING Boeing 737 MAX 9
→
08/10/2026
4h 4m
No alerts
Replay Analysis
N823UAAIRBUS Airbus A319
→
08/10/2026
33m
No alerts
Replay Analysis
N460UAAIRBUS Airbus A320
→
08/10/2026
4h 8m
No alerts
Replay Analysis
N837UAAIRBUS Airbus A319
→
08/09/2026
48m
No alerts
Replay Analysis
N17454BOEING Boeing 737 MAX 9
→
08/08/2026
3h 47m
No alerts
Replay Analysis
N478UAAIRBUS Airbus A320
→
08/08/2026
4h 7m
No alerts
Replay Analysis
N17454BOEING Boeing 737 MAX 9
→
08/07/2026
4h 4m
No alerts
Replay Analysis
N801UAAIRBUS Airbus A319
→
08/07/2026
39m
No alerts
Replay Analysis
N37449BOEING Boeing 737 MAX 9
→
08/06/2026
4h 36m
No alerts
Replay Analysis
N37449BOEING Boeing 737 MAX 9
→
08/06/2026
6m
No alerts
Replay Analysis
N897UAAIRBUS Airbus A319
→
08/06/2026
37m
No alerts
Replay Analysis
N493UAAIRBUS Airbus A320
→
08/06/2026
3h 46m
No alerts
Replay Analysis
N17420BOEING Boeing 737 MAX 9
→
08/05/2026
4h 12m
No alerts
Replay Analysis
N17229BOEING Boeing 737-800
→
08/05/2026
47m
No alerts
Replay Analysis
N467UAAIRBUS Airbus A320
→
08/05/2026
3h 45m
No alerts
Replay Analysis
N27463BOEING Boeing 737 MAX 9
→
08/04/2026
4h 15m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window