Flight Status & Tracker

UAL1866

UNITED AIRLINES INC · GSP → DEN · Last tracked Sep 24, 2026

UAL1866 is a flight number operated by UNITED AIRLINES INC between Greenville Spartanburg International Airport (KGSP) and Denver International Airport (KDEN). SkyMeter last tracked UAL1866 on September 23, 2026. The flight is most often flown by a BOEING Boeing 737-700. Typical block time is 3h 5m. SkyMeter has observed 92 legs of this flight number via ADS-B.

SkyMeter tracks historical flight activity from ADS-B data — this is not a live gate-to-gate status feed.

✈
FLIGHTS
92
last 90 days
⏱
AVG DURATION
3h 5m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 9/24/2026
first → last seen
🗺
ROUTES / TYPES
15 / 2
city pairs · airframes
⚠
INCIDENT RATE
1.1%
1 flagged

Routes flown

By count · last 90 days

10
KGSP → KDEN
32
avg 3h 2m · Greenville Spartanburg → Denver
KEWR → KJAC
7
avg 4h 38m · Newark Liberty → Jackson Hole
KMCI → KDEN
1
avg 1h 27m · Kansas City → Denver
KGSP → KMCI
1
avg 2h 35m · Greenville Spartanburg → Kansas City
20SC → KDEN
1
avg 2h 45m · O Neal Field → Denver
KGSP → KCOS
1
avg 3h 25m · Greenville Spartanburg → City of Colorado Springs
03CO → KDEN
1
avg 14m · Kugel-Strong → Denver
KGSP → KICT
1
avg 3h 42m · Greenville Spartanburg → Wichita Eisenhower National
KCOS → KDEN
1
avg 48m · City of Colorado Springs → Denver
KGMU → KDEN
1
avg 3h 1m · Greenville Downtown → Denver

Aircraft types

Equipment used on this number

2
B737 BOEING Boeing 737-700
92
A320 AIRBUS Airbus A320
66

Safety profile

Flagged flights · last 90 days

Go-arounds
1
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 UAL1866

30
N16709BOEING Boeing 737-700
→
9/24/2026
3h 2m
No alerts
Replay Analysis
N16709BOEING Boeing 737-700
→
9/24/2026
4h 49m
No alerts
Replay Analysis
N16709BOEING Boeing 737-700
→
9/24/2026
1h 45m
No alerts
Replay Analysis
N24715BOEING Boeing 737-700
→
9/23/2026
2h 41m
No alerts
Replay Analysis
N24715BOEING Boeing 737-700
→
9/23/2026
4h 29m
No alerts
Replay Analysis
N24715BOEING Boeing 737-700
→
9/23/2026
1h 47m
No alerts
Replay Analysis
N17730BOEING Boeing 737-700
→
9/21/2026
2h 28m
No alerts
Replay Analysis
N17730BOEING Boeing 737-700
→
9/21/2026
4h 17m
No alerts
Replay Analysis
N17730BOEING Boeing 737-700
→
9/21/2026
1h 48m
No alerts
Replay Analysis
N15710BOEING Boeing 737-700
→
9/20/2026
2h 35m
No alerts
Replay Analysis
N15710BOEING Boeing 737-700
→
9/20/2026
4h 22m
No alerts
Replay Analysis
N15710BOEING Boeing 737-700
→
9/20/2026
1h 47m
No alerts
Replay Analysis
N17719BOEING Boeing 737-700
→
9/19/2026
2h 16m
No alerts
Replay Analysis
N17719BOEING Boeing 737-700
→
9/19/2026
1h 50m
No alerts
Replay Analysis
N17719BOEING Boeing 737-700
→
9/19/2026
4h 7m
No alerts
Replay Analysis
N23707BOEING Boeing 737-700
→
9/18/2026
2h 40m
No alerts
Replay Analysis
N23707BOEING Boeing 737-700
→
9/18/2026
4h 3m
No alerts
Replay Analysis
N23707BOEING Boeing 737-700
→
9/18/2026
1h 22m
No alerts
Replay Analysis
N15710BOEING Boeing 737-700
→
9/17/2026
3h 1m
No alerts
Replay Analysis
N15710BOEING Boeing 737-700
→
9/17/2026
4h 18m
No alerts
Replay Analysis
N15710BOEING Boeing 737-700
→
9/17/2026
1h 16m
No alerts
Replay Analysis
N23707BOEING Boeing 737-700
→
9/16/2026
2h 58m
No alerts
Replay Analysis
N23707BOEING Boeing 737-700
→
9/16/2026
1h 42m
No alerts
Replay Analysis
N23707BOEING Boeing 737-700
→
9/16/2026
4h 41m
No alerts
Replay Analysis
N27734BOEING Boeing 737-700
→
9/15/2026
2h 42m
No alerts
Replay Analysis
N27734BOEING Boeing 737-700
→
9/15/2026
1h 46m
No alerts
Replay Analysis
N27734BOEING Boeing 737-700
→
9/15/2026
4h 29m
No alerts
Replay Analysis
N17730BOEING Boeing 737-700
→
9/14/2026
4h 2m
No alerts
Replay Analysis
N13720BOEING Boeing 737-700
→
9/13/2026
1h 30m
No alerts
Replay Analysis
N13720BOEING Boeing 737-700
→
9/12/2026
3h 22m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window