United Airlines flight UA 1903: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Mon-Fri,Sun 12:27 Guatemala City (GUA) 16:31 Houston George Bush (IAH) E
UA 1903 Non-stop Boeing 737 MAX 8 (7M8) 3:04 Effective 2026-03-29 through 2026-05-20
Wed 12:27 Guatemala City (GUA) 16:29 Houston George Bush (IAH) E
UA 1903 Non-stop Boeing 737 MAX 8 (7M8) 3:02 Operates only on 2026-08-12
Mon,Tue,Thu,Fri 12:28 Guatemala City (GUA) 16:32 Houston George Bush (IAH) E
UA 1903 Non-stop Boeing 737 MAX 8 (7M8) 3:04 Effective 2026-03-09 through 2026-03-27
Mon,Tue,Thu,Fri 12:28 Guatemala City (GUA) 16:32 Houston George Bush (IAH) E
UA 1903 Non-stop Boeing 737 MAX 8 (7M8) 3:04 Effective from 2026-10-26
Mon,Tue,Thu,Fri,Sun 12:38 Guatemala City (GUA) 16:40 Houston George Bush (IAH) E
UA 1903 Non-stop Boeing 737 MAX 8 (7M8) 3:02 Effective 2026-05-21 through 2026-08-18
Mon-Fri,Sun 12:38 Guatemala City (GUA) 16:40 Houston George Bush (IAH) E
UA 1903 Non-stop Boeing 737 MAX 8 (7M8) 3:02 Effective 2026-08-19 through 2026-09-29
Mon,Tue,Thu,Fri,Sun 12:38 Guatemala City (GUA) 16:40 Houston George Bush (IAH) E
UA 1903 Non-stop Boeing 737 MAX 8 (7M8) 3:02 Effective 2026-10-01 through 2026-10-23
Mon-Fri,Sun 13:28 Guatemala City (GUA) 16:32 Houston George Bush (IAH) E
UA 1903 Non-stop Boeing 737 MAX 8 (7M8) 3:04 Effective 2026-01-06 through 2026-03-06
Wed,Sat,Sun 13:43 Guatemala City (GUA) 17:47 Houston George Bush (IAH) E
UA 1903 Non-stop Boeing 737 MAX 8 (7M8) 3:04 Effective 2026-03-08 through 2026-03-28
Wed,Sat,Sun 13:43 Guatemala City (GUA) 17:47 Houston George Bush (IAH) E
UA 1903 Non-stop Boeing 737 MAX 8 (7M8) 3:04 Effective from 2026-10-25
Sat 13:50 Guatemala City (GUA) 17:54 Houston George Bush (IAH) E
UA 1903 Non-stop Boeing 737 MAX 8 (7M8) 3:04 Effective 2026-04-04 through 2026-05-16
Wed,Sat 13:50 Guatemala City (GUA) 17:52 Houston George Bush (IAH) E
UA 1903 Non-stop Boeing 737 MAX 8 (7M8) 3:02 Effective 2026-05-23 through 2026-08-08
Sat 13:50 Guatemala City (GUA) 17:52 Houston George Bush (IAH) E
UA 1903 Non-stop Boeing 737 MAX 8 (7M8) 3:02 Operates only on 2026-08-15
Sat 13:50 Guatemala City (GUA) 17:46 Houston George Bush (IAH) E
UA 1903 Non-stop Boeing 737 MAX 8 (7M8) 2:56 Effective 2026-08-22 through 2026-09-26
Wed,Sat 13:50 Guatemala City (GUA) 17:46 Houston George Bush (IAH) E
UA 1903 Non-stop Boeing 737 MAX 8 (7M8) 2:56 Effective 2026-09-30 through 2026-10-24
Daily 14:43 Guatemala City (GUA) 17:47 Houston George Bush (IAH) E
UA 1903 Non-stop Boeing 737 MAX 8 (7M8) 3:04 Valid until 2026-01-05
Sat 14:43 Guatemala City (GUA) 17:47 Houston George Bush (IAH) E
UA 1903 Non-stop Boeing 737 MAX 8 (7M8) 3:04 Effective 2026-01-10 through 2026-03-07
Mon-Fri,Sun 18:35 Houston George Bush (IAH) C 22:01 Fort Myers (RSW)
UA 1903 Non-stop Boeing 737 MAX 8 (7M8) 2:26 Effective 2026-03-29 through 2026-04-29
Mon,Tue,Thu,Fri,Sun 18:35 Houston George Bush (IAH) C 21:54 Fort Myers (RSW)
UA 1903 Non-stop Boeing 737-800 (738) 2:19 Effective 2026-05-21 through 2026-08-17
Mon-Fri,Sun 19:15 Houston George Bush (IAH) C 22:41 Fort Myers (RSW)
UA 1903 Non-stop Boeing 737 MAX 9 (7M9) 2:26 Effective 2026-04-30 through 2026-05-20
Wed,Sat 19:30 Houston George Bush (IAH) C 22:36 Atlanta (ATL) N
UA 1903 Non-stop Airbus A319 (319) 2:06 Effective 2026-05-23 through 2026-08-15
Daily 19:30 Houston George Bush (IAH) C 22:36 Atlanta (ATL) N
UA 1903 Non-stop Airbus A319 (319) 2:06 Effective 2026-08-18 through 2026-10-24
Daily 19:50 Houston George Bush (IAH) C 23:09 Fort Myers (RSW)
UA 1903 Non-stop Boeing 737-800 (738) 2:19 Effective from 2026-10-25
Sat 20:16 Houston George Bush (IAH) C 22:29 Kansas City (MCI)
UA 1903 Non-stop Airbus A319 (319) 2:13 Effective 2026-05-02 through 2026-05-16
Sat 20:20 Houston George Bush (IAH) C 22:33 Kansas City (MCI)
UA 1903 Non-stop Airbus A320 (320) 2:13 Effective 2026-04-04 through 2026-04-25
Non-Direct Flights:
Mon-Fri,Sun 12:27 Guatemala City (GUA) 22:01 Fort Myers (RSW)
UA 1903 1-stop Boeing 737 MAX 8 (7M8) 7:34 Effective 2026-03-29 through 2026-04-29
Mon-Fri,Sun 12:27 Guatemala City (GUA) 22:41 Fort Myers (RSW)
UA 1903 1-stop Boeing 737 MAX 8 (7M8) 8:14 Effective 2026-04-30 through 2026-05-20
Wed 12:27 Guatemala City (GUA) 22:36 Atlanta (ATL) N
UA 1903 1-stop Boeing 737 MAX 8 (7M8) 8:09 Operates only on 2026-08-12
Mon,Tue,Thu,Fri 12:28 Guatemala City (GUA) 23:09 Fort Myers (RSW)
UA 1903 1-stop Boeing 737 MAX 8 (7M8) 8:41 Effective from 2026-10-26
Mon,Tue,Thu,Fri,Sun 12:38 Guatemala City (GUA) 21:54 Fort Myers (RSW)
UA 1903 1-stop Boeing 737 MAX 8 (7M8) 7:16 Effective 2026-05-21 through 2026-08-17
Mon-Fri,Sun 12:38 Guatemala City (GUA) 22:36 Atlanta (ATL) N
UA 1903 1-stop Boeing 737 MAX 8 (7M8) 7:58 Effective 2026-08-18 through 2026-09-29
Mon,Tue,Thu,Fri,Sun 12:38 Guatemala City (GUA) 22:36 Atlanta (ATL) N
UA 1903 1-stop Boeing 737 MAX 8 (7M8) 7:58 Effective 2026-10-01 through 2026-10-23
Wed,Sat,Sun 13:43 Guatemala City (GUA) 23:09 Fort Myers (RSW)
UA 1903 1-stop Boeing 737 MAX 8 (7M8) 7:26 Effective from 2026-10-25
Sat 13:50 Guatemala City (GUA) 22:33 Kansas City (MCI)
UA 1903 1-stop Boeing 737 MAX 8 (7M8) 7:43 Effective 2026-04-04 through 2026-04-25
Sat 13:50 Guatemala City (GUA) 22:29 Kansas City (MCI)
UA 1903 1-stop Boeing 737 MAX 8 (7M8) 7:39 Effective 2026-05-02 through 2026-05-16
Wed,Sat 13:50 Guatemala City (GUA) 22:36 Atlanta (ATL) N
UA 1903 1-stop Boeing 737 MAX 8 (7M8) 6:46 Effective 2026-05-23 through 2026-08-08
Sat 13:50 Guatemala City (GUA) 22:36 Atlanta (ATL) N
UA 1903 1-stop Boeing 737 MAX 8 (7M8) 6:46 Operates only on 2026-08-15
Sat 13:50 Guatemala City (GUA) 22:36 Atlanta (ATL) N
UA 1903 1-stop Boeing 737 MAX 8 (7M8) 6:46 Effective 2026-08-22 through 2026-09-26
Wed,Sat 13:50 Guatemala City (GUA) 22:36 Atlanta (ATL) N
UA 1903 1-stop Boeing 737 MAX 8 (7M8) 6:46 Effective 2026-09-30 through 2026-10-24
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This flight number is listed as serving the following routes:
United Airlines flight UA 1903: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:

United Airlines UA1903
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 3:04, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1903
Operates only on 2026-08-12
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:02, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1903
Effective 2026-03-09 through 2026-03-27
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:04, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1903
Effective from 2026-10-26
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:04, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1903
Effective 2026-05-21 through 2026-08-18
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 3:02, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1903
Effective 2026-08-19 through 2026-09-29
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 3:02, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1903
Effective 2026-10-01 through 2026-10-23
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 3:02, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1903
Effective 2026-01-06 through 2026-03-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 3:04, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1903
Effective 2026-03-08 through 2026-03-28
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
Sun
Duration: 3:04, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1903
Effective from 2026-10-25
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
Sun
Duration: 3:04, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1903
Effective 2026-04-04 through 2026-05-16
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:04, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1903
Effective 2026-05-23 through 2026-08-08
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:02, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1903
Operates only on 2026-08-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:02, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1903
Effective 2026-08-22 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:56, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1903
Effective 2026-09-30 through 2026-10-24
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:56, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1903
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:04, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1903
Effective 2026-01-10 through 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:04, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1903
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:26, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1903
Effective 2026-05-21 through 2026-08-17
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:19, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA1903
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:26, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

United Airlines UA1903
Effective 2026-05-23 through 2026-08-15
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:06, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA1903
Effective 2026-08-18 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:06, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA1903
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:19, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA1903
Effective 2026-05-02 through 2026-05-16
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:13, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA1903
Effective 2026-04-04 through 2026-04-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:13, non-stop
Airbus A320 (320)

Non-Direct Flights:

United Airlines UA1903
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 7:34, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

United Airlines UA1903
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 8:14, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

United Airlines UA1903
Operates only on 2026-08-12
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 8:09, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

United Airlines UA1903
Effective from 2026-10-26
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 8:41, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

United Airlines UA1903
Effective 2026-05-21 through 2026-08-17
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 7:16, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

United Airlines UA1903
Effective 2026-08-18 through 2026-09-29
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 7:58, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

United Airlines UA1903
Effective 2026-10-01 through 2026-10-23
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 7:58, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

United Airlines UA1903
Effective from 2026-10-25
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
Sun
Duration: 7:26, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

United Airlines UA1903
Effective 2026-04-04 through 2026-04-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 7:43, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

United Airlines UA1903
Effective 2026-05-02 through 2026-05-16
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 7:39, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

United Airlines UA1903
Effective 2026-05-23 through 2026-08-08
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
Sun
-
Duration: 6:46, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

United Airlines UA1903
Operates only on 2026-08-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 6:46, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

United Airlines UA1903
Effective 2026-08-22 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 6:46, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

United Airlines UA1903
Effective 2026-09-30 through 2026-10-24
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
Sun
-
Duration: 6:46, 1-stop
Boeing 737 MAX 8 (7M8)
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This flight number is listed as serving the following routes:
  • Guatemala City (GUA) - Atlanta (ATL)
  • Guatemala City (GUA) - Fort Myers (RSW)
  • Guatemala City (GUA) - Houston George Bush (IAH)
  • Guatemala City (GUA) - Kansas City (MCI)
  • Houston George Bush (IAH) - Atlanta (ATL)
  • Houston George Bush (IAH) - Fort Myers (RSW)
  • Houston George Bush (IAH) - Kansas City (MCI)