UAL557 is operated by UNITED AIRLINES INC between Billings Logan International Airport (KBIL) and Denver International Airport (KDEN). The flight is most often flown by a BOEING Boeing 737-800. Typical block time is 2h 12m. SkyMeter has observed 92 legs of this flight number via ADS-B.

✈
FLIGHTS
92
last 90 days
⏱
AVG DURATION
2h 12m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 9/4/2026
first → last seen
🗺
ROUTES / TYPES
13 / 4
city pairs · airframes
⚠
INCIDENT RATE
1.1%
1 flagged

Routes flown

By count · last 90 days

8
KBIL → KDEN
31
avg 1h 31m · Billings Logan → Denver
KCHS → KDEN
25
avg 3h 43m · Charleston Air Force Base-International → Denver
1CO8 → KDEN
2
avg 30m · Everitt → Denver
2CO9 → KDEN
1
avg 1h 6m · Lands End Heliport → Denver
CO82 → KDEN
1
avg 12m · Land → Denver
US-0412 → KDEN
1
avg 11m · Southlands ER Heliport → Denver
KBIL → KFTG
1
avg 1h 41m · Billings Logan → Colorado Air and Space Port
71CO → KDEN
1
avg 18m · Houston Heliport → Denver

Aircraft types

Equipment used on this number

4
B738 BOEING Boeing 737-800
50
B739 BOEING Boeing 737-900
41
B39M BOEING Boeing 737 MAX 9
39
A320 AIRBUS Airbus A320
5

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
1
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 UAL557

30
N73278BOEING Boeing 737-800
→
9/4/2026
3h 4m
No alerts
Replay Analysis
N76532BOEING Boeing 737-800
→
9/4/2026
20m
No alerts
Replay Analysis
N38257BOEING Boeing 737-800
→
9/2/2026
3h 6m
No alerts
Replay Analysis
N17233BOEING Boeing 737-800
→
9/1/2026
3h 14m
No alerts
Replay Analysis
N17245BOEING Boeing 737-800
→
8/31/2026
3h 17m
No alerts
Replay Analysis
N35236BOEING Boeing 737-800
→
8/31/2026
37m
No alerts
Replay Analysis
N35236BOEING Boeing 737-800
→
8/30/2026
3h 39m
No alerts
Replay Analysis
N35236BOEING Boeing 737-800
→
8/30/2026
3h 1m
No alerts
Replay Analysis
N14214BOEING Boeing 737-800
→
8/28/2026
3h 8m
No alerts
Replay Analysis
N76505BOEING Boeing 737-800
→
8/28/2026
22m
No alerts
Replay Analysis
N76505BOEING Boeing 737-800
→
8/27/2026
3h 28m
No alerts
Replay Analysis
N76505BOEING Boeing 737-800
→
8/27/2026
3h 5m
No alerts
Replay Analysis
N444UAAIRBUS Airbus A320
→
8/27/2026
18m
No alerts
Replay Analysis
N444UAAIRBUS Airbus A320
→
8/26/2026
3h 5m
No alerts
Replay Analysis
N444UAAIRBUS Airbus A320
→
8/26/2026
3h 24m
No alerts
Replay Analysis
N18220BOEING Boeing 737-800
→
8/26/2026
3h 17m
No alerts
Replay Analysis
N18220BOEING Boeing 737-800
→
8/25/2026
41m
No alerts
Replay Analysis
N18220BOEING Boeing 737-800
→
8/25/2026
3h 59m
No alerts
Replay Analysis
N36272BOEING Boeing 737-800
→
8/25/2026
1h 18m
No alerts
Replay Analysis
N36272BOEING Boeing 737-800
→
8/24/2026
2h 38m
No alerts
Replay Analysis
N36272BOEING Boeing 737-800
→
8/24/2026
3h 56m
No alerts
Replay Analysis
N37255BOEING Boeing 737-800
→
8/24/2026
1h 10m
No alerts
Replay Analysis
N37255BOEING Boeing 737-800
→
8/23/2026
4h 21m
No alerts
Replay Analysis
N37255BOEING Boeing 737-800
→
8/23/2026
3h 10m
No alerts
Replay Analysis
N477UAAIRBUS Airbus A320
→
8/22/2026
1h 3m
No alerts
Replay Analysis
N73291BOEING Boeing 737-800
→
8/22/2026
1h 49m
No alerts
Replay Analysis
N73291BOEING Boeing 737-800
→
8/21/2026
4h 51m
No alerts
Replay Analysis
N73291BOEING Boeing 737-800
→
8/21/2026
3h 1m
No alerts
Replay Analysis
N33289BOEING Boeing 737-800
→
8/21/2026
24m
No alerts
Replay Analysis
N33289BOEING Boeing 737-800
→
8/20/2026
3h 1m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window