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 37m. SkyMeter has observed 224 legs of this flight number via ADS-B.

✈
FLIGHTS
224
last 90 days
⏱
AVG DURATION
1h 37m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 07/19/2026
first → last seen
🗺
ROUTES / TYPES
8 / 6
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

3
KPHX → KDEN
81
avg 1h 40m · Phoenix Sky Harbor → Denver
KDEN → KMFR
76
avg 2h 30m · Denver → Rogue Valley International Medford
KCHD → KDEN
2
avg 1h 41m · Chandler → Denver

Aircraft types

Equipment used on this number

6
B39M BOEING Boeing 737 MAX 9
125
B738 BOEING Boeing 737-800
37
B739 BOEING Boeing 737-900
30
A21N AIRBUS Airbus A321 Neo
22
A319 AIRBUS Airbus A319
10
B38M BOEING Boeing 737 MAX 8
2

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
N17565BOEING Boeing 737 MAX 9
→
07/19/2026
2h 16m
No alerts
Replay Analysis
N14515AIRBUS Airbus A321 Neo
→
07/19/2026
1h 45m
No alerts
Replay Analysis
N77581BOEING Boeing 737 MAX 9
→
07/18/2026
23m
No alerts
Replay Analysis
N77581BOEING Boeing 737 MAX 9
→
07/18/2026
2h 17m
No alerts
Replay Analysis
N77296BOEING Boeing 737-800
→
07/18/2026
1h 46m
No alerts
Replay Analysis
N37537BOEING Boeing 737 MAX 9
→
07/17/2026
2h 39m
No alerts
Replay Analysis
N18220BOEING Boeing 737-800
→
07/17/2026
1h 41m
No alerts
Replay Analysis
N37518BOEING Boeing 737 MAX 9
→
07/16/2026
2h 30m
No alerts
Replay Analysis
N37563BOEING Boeing 737 MAX 9
→
07/16/2026
1h 42m
No alerts
Replay Analysis
N17413BOEING Boeing 737 MAX 9
→
07/15/2026
2h 11m
No alerts
Replay Analysis
N69833BOEING Boeing 737-900
→
07/15/2026
1h 46m
No alerts
Replay Analysis
N37525BOEING Boeing 737 MAX 9
→
07/14/2026
2h 5m
No alerts
Replay Analysis
N37252BOEING Boeing 737-800
→
07/14/2026
1h 53m
No alerts
Replay Analysis
N97424BOEING Boeing 737 MAX 9
→
07/13/2026
2h 35m
No alerts
Replay Analysis
N27268BOEING Boeing 737 MAX 8
→
07/13/2026
1h 42m
No alerts
Replay Analysis
N37548BOEING Boeing 737 MAX 9
→
07/12/2026
20m
No alerts
Replay Analysis
N37548BOEING Boeing 737 MAX 9
→
07/12/2026
2h 16m
No alerts
Replay Analysis
N24526AIRBUS Airbus A321 Neo
→
07/12/2026
1h 46m
No alerts
Replay Analysis
N17423BOEING Boeing 737 MAX 9
→
07/11/2026
1h 45m
No alerts
Replay Analysis
N27271BOEING Boeing 737 MAX 8
→
07/11/2026
1h 48m
No alerts
Replay Analysis
N37516BOEING Boeing 737 MAX 9
→
07/10/2026
2h 24m
No alerts
Replay Analysis
N12218BOEING Boeing 737-800
→
07/10/2026
1h 37m
No alerts
Replay Analysis
N37545BOEING Boeing 737 MAX 9
→
07/09/2026
2h 30m
No alerts
Replay Analysis
N76269BOEING Boeing 737-800
→
07/09/2026
1h 37m
No alerts
Replay Analysis
N17460BOEING Boeing 737 MAX 9
→
07/08/2026
14m
No alerts
Replay Analysis
N17460BOEING Boeing 737 MAX 9
→
07/08/2026
2h 26m
No alerts
Replay Analysis
N37456BOEING Boeing 737-900
→
07/08/2026
1h 39m
No alerts
Replay Analysis
N77576BOEING Boeing 737 MAX 9
→
07/07/2026
16m
No alerts
Replay Analysis
N77576BOEING Boeing 737 MAX 9
→
07/07/2026
2h 14m
No alerts
Replay Analysis
N33209BOEING Boeing 737-800
→
07/07/2026
1h 46m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window