RPA4537 is operated by REPUBLIC AIRWAYS INC between Chicago O'Hare International Airport (KORD) and St Louis Lambert International Airport (KSTL). The flight is most often flown by a EMBRAER Embraer 175 long wing. Typical block time is 0h 56m. SkyMeter has observed 178 legs of this flight number via ADS-B.

✈
FLIGHTS
178
last 90 days
⏱
AVG DURATION
56m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/19/2026
first → last seen
🗺
ROUTES / TYPES
13 / 2
city pairs · airframes
⚠
INCIDENT RATE
1.1%
2 flagged

Routes flown

By count · last 90 days

9
KORD → KSTL
67
avg 51m · Chicago O'Hare → St Louis Lambert
KSTL → KORD
52
avg 1h 8m · St Louis Lambert → Chicago O'Hare
CYHZ → KDCA
10
avg 2h 13m · Halifax / Stanfield → Ronald Reagan Washington National
3IL0 → KORD
2
avg 14m · Patten Industries Heliport → Chicago O'Hare
CFR3 → KDCA
1
avg 2h 14m · Fall River Water Aerodrome → Ronald Reagan Washington National
LL95 → KORD
1
avg 19m · Clarke Heliport → Chicago O'Hare
40IS → KORD
1
avg 14m · Children's Memorial Hospital Heliport → Chicago O'Hare
IL70 → KORD
1
avg 8m · Wgn-Tv Heliport → Chicago O'Hare
IL79 → KORD
1
avg 17m · Presence Resurrection Medical Center Heliport → Chicago O'Hare

Aircraft types

Equipment used on this number

2
E75L EMBRAER Embraer 175 long wing
195
E170 EMBRAER Embraer 170
1

Safety profile

Flagged flights · last 90 days

Go-arounds
1
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 RPA4537

30
N440YXEMBRAER Embraer 175 long wing
→
08/19/2026
2h 12m
No alerts
Replay Analysis
N421YXEMBRAER Embraer 175 long wing
→
08/18/2026
2h 5m
No alerts
Replay Analysis
N114HQEMBRAER Embraer 175 long wing
→
08/17/2026
2h 11m
No alerts
Replay Analysis
N132HQEMBRAER Embraer 175 long wing
→
08/16/2026
2h 21m
△ Low approach-stability score
Replay Analysis
N422YXEMBRAER Embraer 175 long wing
→
08/15/2026
2h 19m
No alerts
Replay Analysis
N425YXEMBRAER Embraer 175 long wing
→
08/14/2026
2h 24m
No alerts
Replay Analysis
N118HQEMBRAER Embraer 175 long wing
→
08/13/2026
2h 6m
No alerts
Replay Analysis
N440YXEMBRAER Embraer 175 long wing
→
08/12/2026
54m
No alerts
Replay Analysis
N104HQEMBRAER Embraer 175 long wing
→
08/11/2026
2h 8m
No alerts
Replay Analysis
N129HQEMBRAER Embraer 175 long wing
→
08/09/2026
2h 24m
No alerts
Replay Analysis
N409YXEMBRAER Embraer 175 long wing
→
08/08/2026
2h 22m
No alerts
Replay Analysis
N104HQEMBRAER Embraer 175 long wing
→
08/06/2026
1h 58m
No alerts
Replay Analysis
N129HQEMBRAER Embraer 175 long wing
→
08/05/2026
2h 13m
No alerts
Replay Analysis
N422YXEMBRAER Embraer 175 long wing
→
08/04/2026
1h 4m
No alerts
Replay Analysis
N422YXEMBRAER Embraer 175 long wing
→
08/04/2026
6m
No alerts
Replay Analysis
N422YXEMBRAER Embraer 175 long wing
→
08/04/2026
1h 10m
No alerts
Replay Analysis
N429YXEMBRAER Embraer 175 long wing
→
08/04/2026
5m
No alerts
Replay Analysis
N413YXEMBRAER Embraer 175 long wing
→
08/03/2026
6m
No alerts
Replay Analysis
N429YXEMBRAER Embraer 175 long wing
→
08/03/2026
1h 9m
No alerts
Replay Analysis
N429YXEMBRAER Embraer 175 long wing
→
08/03/2026
48m
No alerts
Replay Analysis
N413YXEMBRAER Embraer 175 long wing
→
08/03/2026
11m
No alerts
Replay Analysis
N434YXEMBRAER Embraer 175 long wing
→
08/03/2026
5m
No alerts
Replay Analysis
N434YXEMBRAER Embraer 175 long wing
→
08/02/2026
56m
No alerts
Replay Analysis
N434YXEMBRAER Embraer 175 long wing
→
08/02/2026
43m
No alerts
Replay Analysis
N416YXEMBRAER Embraer 175 long wing
→
08/01/2026
26m
No alerts
Replay Analysis
N407YXEMBRAER Embraer 175 long wing
→
08/01/2026
58m
No alerts
Replay Analysis
N407YXEMBRAER Embraer 175 long wing
→
07/31/2026
10m
No alerts
Replay Analysis
N407YXEMBRAER Embraer 175 long wing
→
07/31/2026
1h 6m
No alerts
Replay Analysis
N121HQEMBRAER Embraer 175 long wing
→
07/31/2026
13m
No alerts
Replay Analysis
N121HQEMBRAER Embraer 175 long wing
→
07/30/2026
49m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window