United Airlines flight UA 4003: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Thu 07:35 Colorado Springs (COS) 11:13 Houston George Bush (IAH) B
UA 4003 Non-stop Embraer EMB 175 (E7W) 2:38 Operates only on 2026-02-12
Daily 09:00 Memphis (MEM) 11:01 Houston George Bush (IAH) B
UA 4003 Non-stop Embraer EMB 175 (E7W) 2:01 Valid until 2026-01-05
Daily 09:00 Memphis (MEM) 11:00 Houston George Bush (IAH) B
UA 4003 Non-stop Embraer EMB 175 (E7W) 2:00 Effective 2026-02-13 through 2026-03-04
Daily 09:00 Memphis (MEM) 11:01 Houston George Bush (IAH) B
UA 4003 Non-stop Embraer EMB 175 (E7W) 2:01 Effective 2026-03-29 through 2026-05-20
Daily 09:00 Memphis (MEM) 10:48 Houston George Bush (IAH) B
UA 4003 Non-stop Embraer EMB 175 (E7W) 1:48 Effective from 2026-05-21
Sat 09:05 Salt Lake City (SLC) 13:24 Houston George Bush (IAH) B
UA 4003 Non-stop Embraer EMB 175 (E7W) 3:19 Effective 2026-01-10 through 2026-02-07
Sun 10:07 Hartford (BDL) 11:46 Washington Dulles (IAD)
UA 4003 Non-stop Embraer EMB 175 (E7W) 1:39 Effective 2026-01-11 through 2026-02-08
Fri 16:17 Corpus Christi (CRP) 17:23 Houston George Bush (IAH) B
UA 4003 Non-stop Embraer EMB 175 (E7W) 1:06 Operates only on 2026-02-06
Mon-Fri 16:19 Corpus Christi (CRP) 17:25 Houston George Bush (IAH) B
UA 4003 Non-stop Embraer EMB 175 (E7W) 1:06 Effective 2026-01-06 through 2026-02-05
Mon-Wed 16:19 Corpus Christi (CRP) 17:25 Houston George Bush (IAH) B
UA 4003 Non-stop Embraer EMB 175 (E7W) 1:06 Effective 2026-02-09 through 2026-02-11
Daily 16:20 Houston George Bush (IAH) B 17:32 Baton Rouge (BTR)
UA 4003 Non-stop Embraer EMB 175 (E7W) 1:12 Effective 2026-03-05 through 2026-03-28
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This flight number is listed as serving the following routes:


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United Airlines flight UA 4003: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA4003
07:35
Colorado Springs (COS)

11:13
Houston George Bush (IAH) B
Operates only on 2026-02-12
Mon
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Tue
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Wed
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Thu
Fri
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Sat
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Sun
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Duration: 2:38, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA4003
09:00
Memphis (MEM)

11:01
Houston George Bush (IAH) B
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:01, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA4003
09:00
Memphis (MEM)

11:00
Houston George Bush (IAH) B
Effective 2026-02-13 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:00, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA4003
09:00
Memphis (MEM)

11:01
Houston George Bush (IAH) B
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:01, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA4003
09:00
Memphis (MEM)

10:48
Houston George Bush (IAH) B
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:48, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA4003
09:05
Salt Lake City (SLC)

13:24
Houston George Bush (IAH) B
Effective 2026-01-10 through 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:19, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA4003
10:07
Hartford (BDL)

11:46
Washington Dulles (IAD)
Effective 2026-01-11 through 2026-02-08
Mon
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Tue
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Wed
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Thu
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Fri
-
Sat
-
Sun
Duration: 1:39, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA4003
16:17
Corpus Christi (CRP)

17:23
Houston George Bush (IAH) B
Operates only on 2026-02-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:06, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA4003
16:19
Corpus Christi (CRP)

17:25
Houston George Bush (IAH) B
Effective 2026-01-06 through 2026-02-05
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 1:06, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA4003
16:19
Corpus Christi (CRP)

17:25
Houston George Bush (IAH) B
Effective 2026-02-09 through 2026-02-11
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:06, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA4003
16:20
Houston George Bush (IAH) B

17:32
Baton Rouge (BTR)
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:12, non-stop
Embraer EMB 175 (E7W)
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This flight number is listed as serving the following routes:
  • Colorado Springs (COS) - Houston George Bush (IAH)
  • Corpus Christi (CRP) - Houston George Bush (IAH)
  • Hartford (BDL) - Washington Dulles (IAD)
  • Houston George Bush (IAH) - Baton Rouge (BTR)
  • Memphis (MEM) - Houston George Bush (IAH)
  • Salt Lake City (SLC) - Houston George Bush (IAH)
All United Airlines flights
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