RPA4521 is operated by REPUBLIC AIRWAYS INC between La Guardia Airport (KLGA) and Buffalo Niagara International Airport (KBUF). The flight is most often flown by a EMBRAER Embraer 175 long wing. Typical block time is 1h 34m. SkyMeter has observed 106 legs of this flight number via ADS-B.

✈
FLIGHTS
106
last 90 days
⏱
AVG DURATION
1h 34m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 07/18/2026
first → last seen
🗺
ROUTES / TYPES
12 / 2
city pairs · airframes
⚠
INCIDENT RATE
1.9%
2 flagged

Routes flown

By count · last 90 days

9
KLGA → KBUF
40
avg 1h 10m · La Guardia → Buffalo Niagara
KLGA → KSTL
22
avg 2h 24m · La Guardia → St Louis Lambert
KSTL → KLGA
17
avg 2h 14m · St Louis Lambert → La Guardia
6N6 → KBUF
1
avg 54m · Evers Seaplane Base → Buffalo Niagara
2NK8 → KBUF
1
avg 49m · Landmark Plaza Heliport → Buffalo Niagara
6N6 → KLGA
1
avg 9m · Evers Seaplane Base → La Guardia
KLGA → KIAG
1
avg 2h 25m · La Guardia → Niagara Falls
NJ54 → KBUF
1
avg 57m · George Washington Bridge Heliport → Buffalo Niagara
KSTL → KJFK
1
avg 1h 54m · St Louis Lambert → John F Kennedy

Aircraft types

Equipment used on this number

2
E75L EMBRAER Embraer 175 long wing
127
E170 EMBRAER Embraer 170
4

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
2
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 RPA4521

30
N433YXEMBRAER Embraer 175 long wing
→
07/18/2026
54m
No alerts
Replay Analysis
N433YXEMBRAER Embraer 175 long wing
→
07/17/2026
32m
No alerts
Replay Analysis
N123HQEMBRAER Embraer 175 long wing
→
07/17/2026
36m
No alerts
Replay Analysis
N123HQEMBRAER Embraer 175 long wing
→
07/16/2026
1h 9m
No alerts
Replay Analysis
N123HQEMBRAER Embraer 175 long wing
→
07/16/2026
33m
No alerts
Replay Analysis
N414YXEMBRAER Embraer 175 long wing
→
07/16/2026
1h 29m
No alerts
Replay Analysis
N124HQEMBRAER Embraer 175 long wing
→
07/15/2026
28m
No alerts
Replay Analysis
N124HQEMBRAER Embraer 175 long wing
→
07/14/2026
31m
No alerts
Replay Analysis
N124HQEMBRAER Embraer 175 long wing
→
07/14/2026
59m
No alerts
Replay Analysis
N434YXEMBRAER Embraer 175 long wing
→
07/14/2026
43m
No alerts
Replay Analysis
N434YXEMBRAER Embraer 175 long wing
→
07/13/2026
21m
No alerts
Replay Analysis
N434YXEMBRAER Embraer 175 long wing
→
07/13/2026
1h 5m
No alerts
Replay Analysis
N412YXEMBRAER Embraer 175 long wing
→
07/13/2026
25m
No alerts
Replay Analysis
N412YXEMBRAER Embraer 175 long wing
→
07/12/2026
30m
No alerts
Replay Analysis
N412YXEMBRAER Embraer 175 long wing
→
07/12/2026
57m
No alerts
Replay Analysis
N105HQEMBRAER Embraer 175 long wing
→
07/11/2026
1h 51m
No alerts
Replay Analysis
N654RWEMBRAER Embraer 170
→
07/10/2026
1h 10m
No alerts
Replay Analysis
N403YXEMBRAER Embraer 175 long wing
→
07/09/2026
40m
No alerts
Replay Analysis
N403YXEMBRAER Embraer 175 long wing
→
07/08/2026
26m
No alerts
Replay Analysis
N403YXEMBRAER Embraer 175 long wing
→
07/08/2026
1h 7m
No alerts
Replay Analysis
N427YXEMBRAER Embraer 175 long wing
→
07/08/2026
1h 3m
No alerts
Replay Analysis
N118HQEMBRAER Embraer 175 long wing
→
07/07/2026
1h 15m
No alerts
Replay Analysis
N123HQEMBRAER Embraer 175 long wing
→
07/06/2026
2h 0m
No alerts
Replay Analysis
N405YXEMBRAER Embraer 175 long wing
→
07/03/2026
35m
No alerts
Replay Analysis
N405YXEMBRAER Embraer 175 long wing
→
07/02/2026
1h 1m
No alerts
Replay Analysis
N405YXEMBRAER Embraer 175 long wing
→
07/02/2026
26m
No alerts
Replay Analysis
N411YXEMBRAER Embraer 175 long wing
→
07/02/2026
1h 8m
No alerts
Replay Analysis
N106HQEMBRAER Embraer 175 long wing
→
07/01/2026
37m
No alerts
Replay Analysis
N106HQEMBRAER Embraer 175 long wing
→
06/30/2026
30m
No alerts
Replay Analysis
N106HQEMBRAER Embraer 175 long wing
→
06/30/2026
1h 8m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window