United Airlines flight UA 3998: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 05:20 Corpus Christi (CRP) 06:34 Houston George Bush (IAH) B
UA 3998 Non-stop Embraer EMB 175 (E7W) 1:14 Effective 2026-04-30 through 2026-05-20
Wed 15:00 Birmingham (BHM) 17:11 Houston George Bush (IAH) B
UA 3998 Non-stop Embraer EMB 175 (E7W) 2:11 Operates only on 2026-02-04
Daily 16:45 Charlotte (CLT) 18:58 Houston George Bush (IAH) B
UA 3998 Non-stop Embraer EMB 175 (E7W) 3:13 Effective 2026-01-06 through 2026-02-03
Daily 16:45 Charlotte (CLT) 18:58 Houston George Bush (IAH) B
UA 3998 Non-stop Embraer EMB 175 (E7W) 3:13 Effective 2026-02-05 through 2026-02-11
Daily 17:20 Houston George Bush (IAH) B 21:57 New York LaGuardia (LGA) B
UA 3998 Non-stop Embraer EMB 175 (E7W) 3:37 Effective 2026-03-05 through 2026-03-28
Daily 19:40 Charlotte (CLT) 21:18 Washington Dulles (IAD)
UA 3998 Non-stop Embraer EMB 175 (E7W) 1:38 Effective 2026-03-29 through 2026-04-29
Daily 19:44 Charlotte (CLT) 21:18 Washington Dulles (IAD)
UA 3998 Non-stop Embraer EMB 175 (E7W) 1:34 Valid until 2026-01-05
Daily 19:47 Charlotte (CLT) 21:12 Washington Dulles (IAD)
UA 3998 Non-stop Embraer EMB 175 (E7W) 1:25 Effective from 2026-05-21
Daily 20:19 Houston George Bush (IAH) B 21:32 Baton Rouge (BTR)
UA 3998 Non-stop Embraer EMB 175 (E7W) 1:13 Effective 2026-02-12 through 2026-03-04
This flight number is listed as serving the following routes:


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United Airlines flight UA 3998: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA3998
05:20
Corpus Christi (CRP)

06:34
Houston George Bush (IAH) B
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:14, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3998
15:00
Birmingham (BHM)

17:11
Houston George Bush (IAH) B
Operates only on 2026-02-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:11, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3998
16:45
Charlotte (CLT)

18:58
Houston George Bush (IAH) B
Effective 2026-01-06 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:13, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3998
16:45
Charlotte (CLT)

18:58
Houston George Bush (IAH) B
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:13, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3998
17:20
Houston George Bush (IAH) B

21:57
New York LaGuardia (LGA) B
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:37, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3998
19:40
Charlotte (CLT)

21:18
Washington Dulles (IAD)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:38, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3998
19:44
Charlotte (CLT)

21:18
Washington Dulles (IAD)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:34, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3998
19:47
Charlotte (CLT)

21:12
Washington Dulles (IAD)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:25, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3998
20:19
Houston George Bush (IAH) B

21:32
Baton Rouge (BTR)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:13, non-stop
Embraer EMB 175 (E7W)
This flight number is listed as serving the following routes:
  • Birmingham (BHM) - Houston George Bush (IAH)
  • Charlotte (CLT) - Houston George Bush (IAH)
  • Charlotte (CLT) - Washington Dulles (IAD)
  • Corpus Christi (CRP) - Houston George Bush (IAH)
  • Houston George Bush (IAH) - Baton Rouge (BTR)
  • Houston George Bush (IAH) - New York LaGuardia (LGA)
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