United Airlines flight UA 4312: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sat 12:42 Washington Dulles (IAD) 14:12 Cleveland (CLE)
UA 4312 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:30 Effective 2026-01-10 through 2026-02-07
Daily 20:00 Houston George Bush (IAH) B 21:29 Mobile (MOB)
UA 4312 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:29 Effective from 2026-04-30
Mon,Tue,Thu-Sun 20:18 Houston George Bush (IAH) B 21:51 Mobile (MOB)
UA 4312 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:33 Valid until 2026-01-05
Mon-Fri,Sun 20:25 Houston George Bush (IAH) B 21:59 Mobile (MOB)
UA 4312 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:34 Effective 2026-01-06 through 2026-01-16
Mon-Fri,Sun 20:25 Houston George Bush (IAH) B 21:59 Mobile (MOB)
UA 4312 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:34 Effective 2026-01-19 through 2026-02-11
Daily 20:25 Houston George Bush (IAH) B 21:57 Mobile (MOB)
UA 4312 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:32 Effective 2026-03-05 through 2026-03-28
Daily 20:25 Houston George Bush (IAH) B 21:59 Mobile (MOB)
UA 4312 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:34 Effective 2026-03-29 through 2026-04-29
Daily 20:27 Houston George Bush (IAH) B 21:59 Mobile (MOB)
UA 4312 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:32 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 4312: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA4312
12:42
Washington Dulles (IAD)

14:12
Cleveland (CLE)
Effective 2026-01-10 through 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Flights:
United Airlines UA4312
20:00
Houston George Bush (IAH) B

21:29
Mobile (MOB)
Effective from 2026-04-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:29, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Flights:
United Airlines UA4312
20:18
Houston George Bush (IAH) B

21:51
Mobile (MOB)
Valid until 2026-01-05
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Duration: 1:33, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Flights:
United Airlines UA4312
20:25
Houston George Bush (IAH) B

21:59
Mobile (MOB)
Effective 2026-01-06 through 2026-01-16
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:34, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Flights:
United Airlines UA4312
20:25
Houston George Bush (IAH) B

21:59
Mobile (MOB)
Effective 2026-01-19 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:34, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Flights:
United Airlines UA4312
20:25
Houston George Bush (IAH) B

21:57
Mobile (MOB)
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:32, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Flights:
United Airlines UA4312
20:25
Houston George Bush (IAH) B

21:59
Mobile (MOB)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:34, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Flights:
United Airlines UA4312
20:27
Houston George Bush (IAH) B

21:59
Mobile (MOB)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:32, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
This flight number is listed as serving the following routes:
  • Houston George Bush (IAH) - Mobile (MOB)
  • Washington Dulles (IAD) - Cleveland (CLE)
All United Airlines flights
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