United Airlines flight UA 1643: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 09:00 Chicago O'Hare (ORD) 1 12:45 Orlando (MCO) B
UA 1643 Non-stop Airbus A321neo (32Q) 2:45 Effective from 2026-05-21
Daily 09:15 Chicago O'Hare (ORD) 1 13:14 Orlando (MCO) B
UA 1643 Non-stop Airbus A321neo (32Q) 2:59 Effective 2026-03-29 through 2026-05-20
Mon 13:46 Orlando (MCO) B 16:29 Newark Liberty, New York (EWR) A
UA 1643 Non-stop Boeing 737-900 (739) 2:43 Operates only on 2026-01-05
Sun 13:52 Orlando (MCO) B 16:29 Newark Liberty, New York (EWR) A
UA 1643 Non-stop Boeing 737-900 (739) 2:37 Valid until 2026-01-04
Fri 14:10 Orlando (MCO) B 16:54 Newark Liberty, New York (EWR) C
UA 1643 Non-stop Boeing 737-900 (739) 2:44 Effective 2026-01-09 through 2026-02-06
Tue 14:11 Orlando (MCO) B 16:55 Newark Liberty, New York (EWR) C
UA 1643 Non-stop Boeing 737 MAX 9 (7M9) 2:44 Effective 2026-02-03 through 2026-02-10
Wed 14:11 Orlando (MCO) B 16:55 Newark Liberty, New York (EWR) C
UA 1643 Non-stop Boeing 757-200 (752) 2:44 Operates only on 2026-02-04
Daily 14:11 Orlando (MCO) B 17:01 Newark Liberty, New York (EWR) C
UA 1643 Non-stop Boeing 737-900 (739) 2:50 Effective from 2026-04-30
Sat 14:15 Orlando (MCO) B 16:57 Newark Liberty, New York (EWR) A
UA 1643 Non-stop Boeing 737-900 (739) 2:42 Valid until 2026-01-03
Thu,Fri 14:16 Orlando (MCO) B 16:59 Newark Liberty, New York (EWR) A
UA 1643 Non-stop Boeing 737-900 (739) 2:43 Valid until 2026-01-02
Mon,Tue,Thu,Sun 14:16 Orlando (MCO) B 17:00 Newark Liberty, New York (EWR) C
UA 1643 Non-stop Boeing 737-900 (739) 2:44 Effective 2026-01-06 through 2026-01-13
Wed 14:16 Orlando (MCO) B 17:00 Newark Liberty, New York (EWR) C
UA 1643 Non-stop Boeing 737 MAX 9 (7M9) 2:44 Effective 2026-01-07 through 2026-01-14
Sat 14:16 Orlando (MCO) B 17:00 Newark Liberty, New York (EWR) A
UA 1643 Non-stop Boeing 737 MAX 8 (7M8) 2:44 Effective 2026-01-10 through 2026-02-07
Wed,Thu 14:16 Orlando (MCO) B 17:00 Newark Liberty, New York (EWR) C
UA 1643 Non-stop Boeing 737 MAX 9 (7M9) 2:44 Effective 2026-01-15 through 2026-01-28
Mon,Tue,Sun 14:16 Orlando (MCO) B 17:00 Newark Liberty, New York (EWR) C
UA 1643 Non-stop Boeing 737-900 (739) 2:44 Effective 2026-01-18 through 2026-01-27
Mon,Thu,Sun 14:16 Orlando (MCO) B 17:00 Newark Liberty, New York (EWR) C
UA 1643 Non-stop Boeing 737-900 (739) 2:44 Effective 2026-01-29 through 2026-02-09
Wed 14:16 Orlando (MCO) B 17:00 Newark Liberty, New York (EWR) C
UA 1643 Non-stop Boeing 737-900 (739) 2:44 Operates only on 2026-02-11
Thu 14:38 Orlando (MCO) B 17:28 Newark Liberty, New York (EWR) C
UA 1643 Non-stop Boeing 737 MAX 9 (7M9) 2:50 Operates only on 2026-02-12
Tue-Sun 14:38 Orlando (MCO) B 17:28 Newark Liberty, New York (EWR) C
UA 1643 Non-stop Boeing 737-900 (739) 2:50 Effective 2026-02-13 through 2026-03-04
Mon 14:38 Orlando (MCO) B 17:28 Newark Liberty, New York (EWR) C
UA 1643 Non-stop Boeing 737 MAX 9 (7M9) 2:50 Effective 2026-02-16 through 2026-03-02
Wed-Sun 17:47 Washington Dulles (IAD) 20:34 West Palm Beach (PBI)
UA 1643 Non-stop Boeing 737-800 (738) 2:47 Effective 2026-03-05 through 2026-03-28
Mon,Tue 17:47 Washington Dulles (IAD) 20:34 West Palm Beach (PBI)
UA 1643 Non-stop Boeing 737-900 (739) 2:47 Effective 2026-03-09 through 2026-03-24
Non-Direct Flights:
Daily 09:00 Chicago O'Hare (ORD) 1 17:01 Newark Liberty, New York (EWR) C
UA 1643 1-stop Airbus A321neo (32Q) 7:01 Effective from 2026-05-21
Daily 09:15 Chicago O'Hare (ORD) 1 17:01 Newark Liberty, New York (EWR) C
UA 1643 1-stop Airbus A321neo (32Q) 6:46 Effective 2026-04-30 through 2026-05-20
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This flight number is listed as serving the following routes:


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United Airlines flight UA 1643: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA1643
09:00
Chicago O'Hare (ORD) 1

12:45
Orlando (MCO) B
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:45, non-stop
Airbus A321neo (32Q)
Direct Flights:
United Airlines UA1643
09:15
Chicago O'Hare (ORD) 1

13:14
Orlando (MCO) B
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:59, non-stop
Airbus A321neo (32Q)
Direct Flights:
United Airlines UA1643
13:46
Orlando (MCO) B

16:29
Newark Liberty, New York (EWR) A
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:43, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1643
13:52
Orlando (MCO) B

16:29
Newark Liberty, New York (EWR) A
Valid until 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:37, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1643
14:10
Orlando (MCO) B

16:54
Newark Liberty, New York (EWR) C
Effective 2026-01-09 through 2026-02-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:44, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1643
14:11
Orlando (MCO) B

16:55
Newark Liberty, New York (EWR) C
Effective 2026-02-03 through 2026-02-10
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:44, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA1643
14:11
Orlando (MCO) B

16:55
Newark Liberty, New York (EWR) C
Operates only on 2026-02-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:44, non-stop
Boeing 757-200 (752)
Direct Flights:
United Airlines UA1643
14:11
Orlando (MCO) B

17:01
Newark Liberty, New York (EWR) C
Effective from 2026-04-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:50, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1643
14:15
Orlando (MCO) B

16:57
Newark Liberty, New York (EWR) A
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:42, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1643
14:16
Orlando (MCO) B

16:59
Newark Liberty, New York (EWR) A
Valid until 2026-01-02
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:43, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1643
14:16
Orlando (MCO) B

17:00
Newark Liberty, New York (EWR) C
Effective 2026-01-06 through 2026-01-13
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
Duration: 2:44, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1643
14:16
Orlando (MCO) B

17:00
Newark Liberty, New York (EWR) C
Effective 2026-01-07 through 2026-01-14
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:44, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA1643
14:16
Orlando (MCO) B

17:00
Newark Liberty, New York (EWR) A
Effective 2026-01-10 through 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:44, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1643
14:16
Orlando (MCO) B

17:00
Newark Liberty, New York (EWR) C
Effective 2026-01-15 through 2026-01-28
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:44, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA1643
14:16
Orlando (MCO) B

17:00
Newark Liberty, New York (EWR) C
Effective 2026-01-18 through 2026-01-27
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:44, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1643
14:16
Orlando (MCO) B

17:00
Newark Liberty, New York (EWR) C
Effective 2026-01-29 through 2026-02-09
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
Duration: 2:44, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1643
14:16
Orlando (MCO) B

17:00
Newark Liberty, New York (EWR) C
Operates only on 2026-02-11
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:44, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1643
14:38
Orlando (MCO) B

17:28
Newark Liberty, New York (EWR) C
Operates only on 2026-02-12
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:50, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA1643
14:38
Orlando (MCO) B

17:28
Newark Liberty, New York (EWR) C
Effective 2026-02-13 through 2026-03-04
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:50, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1643
14:38
Orlando (MCO) B

17:28
Newark Liberty, New York (EWR) C
Effective 2026-02-16 through 2026-03-02
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:50, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA1643
17:47
Washington Dulles (IAD)

20:34
West Palm Beach (PBI)
Effective 2026-03-05 through 2026-03-28
Mon
-
Tue
-
Wed
Thu
Fri
Sat
Sun
Duration: 2:47, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA1643
17:47
Washington Dulles (IAD)

20:34
West Palm Beach (PBI)
Effective 2026-03-09 through 2026-03-24
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:47, non-stop
Boeing 737-900 (739)
Non-Direct Flights:
United Airlines UA1643
09:00
Chicago O'Hare (ORD) 1

17:01
Newark Liberty, New York (EWR) C
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 7:01, 1-stop
Airbus A321neo (32Q)
Non-Direct Flights:
United Airlines UA1643
09:15
Chicago O'Hare (ORD) 1

17:01
Newark Liberty, New York (EWR) C
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:46, 1-stop
Airbus A321neo (32Q)
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Parallax here -
This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Newark Liberty, New York (EWR)
  • Chicago O'Hare (ORD) - Orlando (MCO)
  • Orlando (MCO) - Newark Liberty, New York (EWR)
  • Washington Dulles (IAD) - West Palm Beach (PBI)
All United Airlines flights
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