United Airlines flight UA 4543: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 08:00 Green Bay (GRB) 09:33 Chicago O'Hare (ORD) 2
UA 4543 Non-stop Canadair CRJ 550 (CR5) 1:33 Effective 2026-01-06 through 2026-02-03
Daily 08:00 Green Bay (GRB) 09:33 Chicago O'Hare (ORD) 2
UA 4543 Non-stop Canadair CRJ 550 (CR5) 1:33 Effective 2026-02-05 through 2026-02-11
Daily 08:00 Green Bay (GRB) 09:26 Chicago O'Hare (ORD) 2
UA 4543 Non-stop Canadair CRJ 550 (CR5) 1:26 Effective 2026-02-12 through 2026-03-04
Daily 08:00 Green Bay (GRB) 09:22 Chicago O'Hare (ORD) 2
UA 4543 Non-stop Canadair CRJ 550 (CR5) 1:22 Effective 2026-04-30 through 2026-05-20
Wed 08:20 Green Bay (GRB) 09:53 Chicago O'Hare (ORD) 2
UA 4543 Non-stop Canadair CRJ 550 (CR5) 1:33 Operates only on 2026-02-04
Daily 08:25 Green Bay (GRB) 09:33 Chicago O'Hare (ORD) 2
UA 4543 Non-stop Canadair CRJ 550 (CR5) 1:08 Effective 2026-03-29 through 2026-04-29
Daily 08:25 Green Bay (GRB) 09:33 Chicago O'Hare (ORD) 2
UA 4543 Non-stop Canadair CRJ 550 (CR5) 1:08 Effective from 2026-05-21
Sun 11:10 Newark Liberty, New York (EWR) C 12:31 Rochester (ROC)
UA 4543 Non-stop Canadair CRJ 550 (CR5) 1:21 Effective 2026-03-08 through 2026-03-22
This flight number is listed as serving the following routes:


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United Airlines flight UA 4543: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA4543
08:00
Green Bay (GRB)

09:33
Chicago O'Hare (ORD) 2
Effective 2026-01-06 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:33, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4543
08:00
Green Bay (GRB)

09:33
Chicago O'Hare (ORD) 2
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:33, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4543
08:00
Green Bay (GRB)

09:26
Chicago O'Hare (ORD) 2
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:26, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4543
08:00
Green Bay (GRB)

09:22
Chicago O'Hare (ORD) 2
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:22, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4543
08:20
Green Bay (GRB)

09:53
Chicago O'Hare (ORD) 2
Operates only on 2026-02-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:33, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4543
08:25
Green Bay (GRB)

09:33
Chicago O'Hare (ORD) 2
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:08, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4543
08:25
Green Bay (GRB)

09:33
Chicago O'Hare (ORD) 2
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:08, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4543
11:10
Newark Liberty, New York (EWR) C

12:31
Rochester (ROC)
Effective 2026-03-08 through 2026-03-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:21, non-stop
Canadair CRJ 550 (CR5)
This flight number is listed as serving the following routes:
  • Green Bay (GRB) - Chicago O'Hare (ORD)
  • Newark Liberty, New York (EWR) - Rochester (ROC)
All United Airlines flights
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