Flight Status & Tracker

UAL2173

UNITED AIRLINES INC · BOI → DEN · Last tracked Oct 18, 2026

UAL2173 is a flight number operated by UNITED AIRLINES INC between Boise Air Terminal/Gowen Field (KBOI) and Denver International Airport (KDEN). SkyMeter last tracked UAL2173 on October 18, 2026. The flight is most often flown by a BOEING Boeing 737-900. Typical block time is 1h 26m. SkyMeter has observed 151 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
151
last 90 days
⏱
AVG DURATION
1h 26m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 10/18/2026
first → last seen
🗺
ROUTES / TYPES
11 / 6
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

8
KBOI → KDEN
73
avg 1h 52m · Boise Air Terminal/Gowen Field → Denver
KDEN → KHDN
26
avg 44m · Denver → Yampa Valley
KDEN → KSBS
5
avg 42m · Denver → Steamboat Springs Bob Adams Field
KBOI → KRAP
1
avg 3h 5m · Boise Air Terminal/Gowen Field → Rapid City
KRAP → KDEN
1
avg 1h 40m · Rapid City → Denver
KICT → KDEN
1
avg 1h 16m · Wichita Eisenhower National → Denver
KBOI → KICT
1
avg 2h 40m · Boise Air Terminal/Gowen Field → Wichita Eisenhower National
KDEN → KSDF
1
avg 15h 32m · Denver → Louisville Muhammad Ali

Aircraft types

Equipment used on this number

6
B739 BOEING Boeing 737-900
81
A319 AIRBUS Airbus A319
41
B738 BOEING Boeing 737-800
31
A320 AIRBUS Airbus A320
8
B39M BOEING Boeing 737 MAX 9
5
B38M BOEING Boeing 737 MAX 8
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 UAL2173

30
N12218BOEING Boeing 737-800
→
10/18/2026
1h 47m
No alerts
Replay Analysis
N73291BOEING Boeing 737-800
→
10/18/2026
38m
No alerts
Replay Analysis
N27263BOEING Boeing 737 MAX 8
→
10/17/2026
32m
No alerts
Replay Analysis
N39297BOEING Boeing 737-800
→
10/16/2026
1h 49m
No alerts
Replay Analysis
N14237BOEING Boeing 737-800
→
10/16/2026
1h 37m
No alerts
Replay Analysis
N79521BOEING Boeing 737-800
→
10/15/2026
32m
No alerts
Replay Analysis
N37263BOEING Boeing 737-800
→
10/13/2026
46m
No alerts
Replay Analysis
N14240BOEING Boeing 737-800
→
10/12/2026
1h 50m
No alerts
Replay Analysis
N12238BOEING Boeing 737-800
→
10/12/2026
1h 2m
No alerts
Replay Analysis
N37561BOEING Boeing 737 MAX 9
→
10/10/2026
2h 11m
No alerts
Replay Analysis
N17229BOEING Boeing 737-800
→
10/10/2026
46m
No alerts
Replay Analysis
N24224BOEING Boeing 737-800
→
10/9/2026
1h 38m
No alerts
Replay Analysis
N37252BOEING Boeing 737-800
→
10/9/2026
46m
No alerts
Replay Analysis
N14242BOEING Boeing 737-800
→
10/8/2026
2h 1m
No alerts
Replay Analysis
N39297BOEING Boeing 737-800
→
10/7/2026
2h 14m
No alerts
Replay Analysis
N33294BOEING Boeing 737-800
→
10/7/2026
32m
No alerts
Replay Analysis
N33289BOEING Boeing 737-800
→
10/6/2026
1h 47m
No alerts
Replay Analysis
N73278BOEING Boeing 737-800
→
10/6/2026
52m
No alerts
Replay Analysis
N77518BOEING Boeing 737-800
→
10/5/2026
1h 58m
No alerts
Replay Analysis
N76519BOEING Boeing 737-800
→
10/5/2026
45m
No alerts
Replay Analysis
N37474BOEING Boeing 737-900
→
10/4/2026
1h 46m
No alerts
Replay Analysis
N76522BOEING Boeing 737-800
→
10/4/2026
33m
No alerts
Replay Analysis
N66893BOEING Boeing 737-900
→
10/3/2026
1h 56m
No alerts
Replay Analysis
N27246BOEING Boeing 737-800
→
10/3/2026
52m
No alerts
Replay Analysis
N33262BOEING Boeing 737-800
→
10/2/2026
1h 40m
No alerts
Replay Analysis
N37252BOEING Boeing 737-800
→
10/2/2026
52m
No alerts
Replay Analysis
N37468BOEING Boeing 737-900
→
10/1/2026
1h 50m
No alerts
Replay Analysis
N37255BOEING Boeing 737-800
→
9/30/2026
2h 2m
No alerts
Replay Analysis
N76529BOEING Boeing 737-800
→
9/30/2026
38m
No alerts
Replay Analysis
N37470BOEING Boeing 737-900
→
9/29/2026
1h 55m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window