UAL337 is operated by UMB BANK NA TRUSTEE 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 43m. SkyMeter has observed 115 legs of this flight number via ADS-B.

✈
FLIGHTS
115
last 90 days
⏱
AVG DURATION
1h 43m
tracked time
📅
SERVICE PERIOD
04/06/2026 → 06/03/2026
first → last seen
🗺
ROUTES / TYPES
7 / 6
city pairs · airframes
⚠
INCIDENT RATE
13.9%
16 flagged

Routes flown

By count · last 90 days

3
KPHX → KDEN
44
avg 1h 40m · Phoenix Sky Harbor → Denver
KDEN → KMFR
39
avg 2h 35m · Denver → Rogue Valley International Medford
AZ83 → KDEN
1
avg 1h 21m · Phoenix Memorial Hospital Heliport → Denver

Aircraft types

Equipment used on this number

6
B39M BOEING Boeing 737 MAX 9
50
A319 AIRBUS Airbus A319
20
B739 BOEING Boeing 737-900
20
A21N AIRBUS Airbus A321 Neo
16
B738 BOEING Boeing 737-800
7
A320 AIRBUS Airbus A320
2

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
16
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
N37555BOEING Boeing 737 MAX 9
→
06/03/2026
19m
No alerts
Replay Analysis
N37555BOEING Boeing 737 MAX 9
→
06/03/2026
2h 20m
No alerts
Replay Analysis
N39475BOEING Boeing 737-900
→
06/03/2026
1h 42m
No alerts
Replay Analysis
N37563BOEING Boeing 737 MAX 9
→
06/02/2026
24m
No alerts
Replay Analysis
N37563BOEING Boeing 737 MAX 9
→
06/02/2026
2h 16m
No alerts
Replay Analysis
N37563BOEING Boeing 737 MAX 9
→
06/02/2026
10m
No alerts
Replay Analysis
N76517BOEING Boeing 737-800
→
06/02/2026
1h 47m
No alerts
Replay Analysis
N37537BOEING Boeing 737 MAX 9
→
06/01/2026
22m
No alerts
Replay Analysis
N37537BOEING Boeing 737 MAX 9
→
06/01/2026
2h 47m
No alerts
Replay Analysis
N13248BOEING Boeing 737-800
→
06/01/2026
1h 40m
No alerts
Replay Analysis
N37516BOEING Boeing 737 MAX 9
→
05/31/2026
42m
No alerts
Replay Analysis
N37516BOEING Boeing 737 MAX 9
→
05/31/2026
2h 36m
No alerts
Replay Analysis
N68452BOEING Boeing 737-900
→
05/31/2026
1h 37m
△ Unstable
Replay Analysis
N17423BOEING Boeing 737 MAX 9
→
05/29/2026
7m
No alerts
Replay Analysis
N17423BOEING Boeing 737 MAX 9
→
05/29/2026
2h 0m
No alerts
Replay Analysis
N34222BOEING Boeing 737-800
→
05/29/2026
1h 30m
No alerts
Replay Analysis
N17403BOEING Boeing 737 MAX 9
→
05/28/2026
2h 22m
No alerts
Replay Analysis
N78501BOEING Boeing 737-800
→
05/28/2026
1h 43m
No alerts
Replay Analysis
N17425BOEING Boeing 737 MAX 9
→
05/26/2026
19m
No alerts
Replay Analysis
N17425BOEING Boeing 737 MAX 9
→
05/26/2026
2h 24m
No alerts
Replay Analysis
N27246BOEING Boeing 737-800
→
05/26/2026
1h 50m
No alerts
Replay Analysis
N77587BOEING Boeing 737 MAX 9
→
05/25/2026
21m
No alerts
Replay Analysis
N77587BOEING Boeing 737 MAX 9
→
05/25/2026
2h 9m
△ Unstable
Replay Analysis
N39450BOEING Boeing 737-900
→
05/25/2026
1h 38m
No alerts
Replay Analysis
N27404BOEING Boeing 737 MAX 9
→
05/24/2026
2h 28m
No alerts
Replay Analysis
N61887BOEING Boeing 737-900
→
05/24/2026
1h 45m
△ Unstable
Replay Analysis
N37545BOEING Boeing 737 MAX 9
→
05/23/2026
5m
No alerts
Replay Analysis
N37545BOEING Boeing 737 MAX 9
→
05/23/2026
44m
No alerts
Replay Analysis
N37545BOEING Boeing 737 MAX 9
→
05/23/2026
2h 19m
No alerts
Replay Analysis
N73278BOEING Boeing 737-800
→
05/23/2026
1h 45m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window