United Airlines flight UA 543: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sun 05:03 Boston Logan (BOS) B 08:27 George Bush, Houston (IAH) C
UA 543 Non-stop Boeing 737-800 (738) 4:24 Effective 2025-05-04 through 2025-05-18
Thu 05:10 Boston Logan (BOS) B 08:34 George Bush, Houston (IAH) C
UA 543 Non-stop Boeing 737-800 (738) 4:24 Effective 2025-05-08 through 2025-05-15
Mon-Wed,Fri,Sat 05:15 Boston Logan (BOS) B 08:39 George Bush, Houston (IAH) C
UA 543 Non-stop Boeing 737-800 (738) 4:24 Effective 2025-05-02 through 2025-05-21
Thu 05:15 Boston Logan (BOS) B 08:19 George Bush, Houston (IAH) C
UA 543 Non-stop Airbus A319 (319) 4:04 Operates only on 2025-05-22
Mon-Sat 05:15 Boston Logan (BOS) B 08:19 George Bush, Houston (IAH) C
UA 543 Non-stop Airbus A320 (320) 4:04 Effective 2025-05-23 through 2025-05-31
Daily 05:15 Boston Logan (BOS) B 08:19 George Bush, Houston (IAH) C
UA 543 Non-stop Airbus A320 (320) 4:04 Effective 2025-07-07 through 2025-07-31
Sat,Sun 05:15 Boston Logan (BOS) B 08:19 George Bush, Houston (IAH) C
UA 543 Non-stop Boeing 737 MAX 8 (7M8) 4:04 Effective 2025-08-02 through 2025-08-17
Mon-Sat 05:25 Boston Logan (BOS) B 08:29 George Bush, Houston (IAH) C
UA 543 Non-stop Airbus A320 (320) 4:04 Effective 2025-06-02 through 2025-06-28
Mon-Fri,Sun 05:25 Boston Logan (BOS) B 08:29 George Bush, Houston (IAH) C
UA 543 Non-stop Airbus A320 (320) 4:04 Effective 2025-06-29 through 2025-07-06
Mon-Fri 05:25 Boston Logan (BOS) B 08:29 George Bush, Houston (IAH) C
UA 543 Non-stop Airbus A320 (320) 4:04 Effective 2025-08-01 through 2025-08-18
Sun 06:15 Orlando (MCO) B 08:21 Denver (DEN)
UA 543 Non-stop Boeing 737-900 (739) 4:06 Effective 2025-06-01 through 2025-06-22
Thu 07:00 Greenville/Spartanburg (GSP) 08:43 George Bush, Houston (IAH) C
UA 543 Non-stop Boeing 737-700 (73G) 2:43 Operates only on 2025-05-01
Daily 17:45 Dulles, Washington (IAD) 18:48 Pittsburgh (PIT)
UA 543 Non-stop Boeing 737-700 (73G) 1:03 Effective 2025-08-19 through 2025-10-25
Daily 18:28 George Bush, Houston (IAH) C 21:46 Greenville/Spartanburg (GSP)
UA 543 Non-stop Boeing 737-700 (73G) 2:18 Effective from 2025-10-26
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This flight number is listed as serving the following routes:
United Airlines flight UA 543: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:

United Airlines UA543
Effective 2025-05-04 through 2025-05-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:24, non-stop
Boeing 737-800 (738)

United Airlines UA543
Effective 2025-05-08 through 2025-05-15
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 4:24, non-stop
Boeing 737-800 (738)

United Airlines UA543
Effective 2025-05-02 through 2025-05-21
Mon
Tue
Wed
Thu
-
Fri
Sat
Sun
-
Duration: 4:24, non-stop
Boeing 737-800 (738)

United Airlines UA543
Operates only on 2025-05-22
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 4:04, non-stop
Airbus A319 (319)

United Airlines UA543
Effective 2025-05-23 through 2025-05-31
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 4:04, non-stop
Airbus A320 (320)

United Airlines UA543
Effective 2025-07-07 through 2025-07-31
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:04, non-stop
Airbus A320 (320)

United Airlines UA543
Effective 2025-08-02 through 2025-08-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 4:04, non-stop
Boeing 737 MAX 8 (7M8)

United Airlines UA543
Effective 2025-06-02 through 2025-06-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 4:04, non-stop
Airbus A320 (320)

United Airlines UA543
Effective 2025-06-29 through 2025-07-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 4:04, non-stop
Airbus A320 (320)

United Airlines UA543
Effective 2025-08-01 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 4:04, non-stop
Airbus A320 (320)

United Airlines UA543
06:15

08:21
Effective 2025-06-01 through 2025-06-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:06, non-stop
Boeing 737-900 (739)

United Airlines UA543
Operates only on 2025-05-01
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:43, non-stop
Boeing 737-700 (73G)

United Airlines UA543
Effective 2025-08-19 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:03, non-stop
Boeing 737-700 (73G)

United Airlines UA543
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:18, non-stop
Boeing 737-700 (73G)
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This flight number is listed as serving the following routes:
  • Boston Logan (BOS) - George Bush, Houston (IAH)
  • Dulles, Washington (IAD) - Pittsburgh (PIT)
  • Greenville/Spartanburg (GSP) - George Bush, Houston (IAH)
  • Orlando (MCO) - Denver (DEN)