UAL337 is operated by UNITED AIRLINES INC between Phoenix Sky Harbor International Airport (KPHX) and Denver International Airport (KDEN). The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 1h 38m. SkyMeter has observed 227 legs of this flight number via ADS-B.

✈
FLIGHTS
227
last 90 days
⏱
AVG DURATION
1h 38m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 9/4/2026
first → last seen
🗺
ROUTES / TYPES
9 / 5
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

4
KPHX → KDEN
78
avg 1h 40m · Phoenix Sky Harbor → Denver
KDEN → KMFR
76
avg 2h 29m · Denver → Rogue Valley International Medford
KCHD → KDEN
7
avg 1h 42m · Chandler → Denver
KDEN → KS03
1
avg 2h 31m · Denver → Ashland Municipal Sumner Parker Field

Aircraft types

Equipment used on this number

5
B39M BOEING Boeing 737 MAX 9
138
B738 BOEING Boeing 737-800
61
B739 BOEING Boeing 737-900
20
A21N AIRBUS Airbus A321 Neo
6
B38M BOEING Boeing 737 MAX 8
4

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 UAL337

30
N17459BOEING Boeing 737 MAX 9
→
9/4/2026
2h 27m
No alerts
Replay Analysis
N76517BOEING Boeing 737-800
→
9/4/2026
1h 34m
No alerts
Replay Analysis
N17583BOEING Boeing 737 MAX 9
→
9/3/2026
33m
No alerts
Replay Analysis
N17583BOEING Boeing 737 MAX 9
→
9/3/2026
2h 41m
No alerts
Replay Analysis
N17444BOEING Boeing 737 MAX 9
→
9/3/2026
1h 46m
No alerts
Replay Analysis
N27519BOEING Boeing 737 MAX 9
→
9/2/2026
19m
No alerts
Replay Analysis
N27519BOEING Boeing 737 MAX 9
→
9/2/2026
2h 34m
No alerts
Replay Analysis
N77296BOEING Boeing 737-800
→
9/2/2026
1h 41m
No alerts
Replay Analysis
N17422BOEING Boeing 737 MAX 9
→
9/1/2026
10m
No alerts
Replay Analysis
N17422BOEING Boeing 737 MAX 9
→
9/1/2026
2h 31m
No alerts
Replay Analysis
N33289BOEING Boeing 737-800
→
9/1/2026
1h 43m
No alerts
Replay Analysis
N77585BOEING Boeing 737 MAX 9
→
8/31/2026
11m
No alerts
Replay Analysis
N77585BOEING Boeing 737 MAX 9
→
8/31/2026
2h 25m
No alerts
Replay Analysis
N37274BOEING Boeing 737-800
→
8/31/2026
1h 39m
No alerts
Replay Analysis
N76505BOEING Boeing 737-800
→
8/30/2026
2h 59m
No alerts
Replay Analysis
N77525BOEING Boeing 737-800
→
8/30/2026
1h 32m
No alerts
Replay Analysis
N27519BOEING Boeing 737 MAX 9
→
8/29/2026
32m
No alerts
Replay Analysis
N27519BOEING Boeing 737 MAX 9
→
8/29/2026
2h 30m
No alerts
Replay Analysis
N33294BOEING Boeing 737-800
→
8/29/2026
1h 42m
No alerts
Replay Analysis
N17455BOEING Boeing 737 MAX 9
→
8/28/2026
11m
No alerts
Replay Analysis
N17455BOEING Boeing 737 MAX 9
→
8/28/2026
2h 26m
No alerts
Replay Analysis
N17229BOEING Boeing 737-800
→
8/28/2026
1h 46m
No alerts
Replay Analysis
N47434BOEING Boeing 737 MAX 9
→
8/27/2026
2h 41m
No alerts
Replay Analysis
N27246BOEING Boeing 737-800
→
8/27/2026
1h 35m
No alerts
Replay Analysis
N37554BOEING Boeing 737 MAX 9
→
8/26/2026
8m
No alerts
Replay Analysis
N37554BOEING Boeing 737 MAX 9
→
8/26/2026
2h 18m
No alerts
Replay Analysis
N39297BOEING Boeing 737-800
→
8/26/2026
1h 39m
No alerts
Replay Analysis
N17452BOEING Boeing 737 MAX 9
→
8/25/2026
2h 22m
No alerts
Replay Analysis
N76288BOEING Boeing 737-800
→
8/25/2026
1h 27m
No alerts
Replay Analysis
N57451BOEING Boeing 737 MAX 9
→
8/24/2026
2h 12m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window