United Airlines flight UA 4320: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Sat 08:21 Washington Dulles (IAD) 09:56 John Glenn Columbus (CMH)
UA 4320 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:35 Effective 2026-01-10 through 2026-02-07
Wed,Thu,Sat 16:20 Houston George Bush (IAH) B 17:50 McAllen/Mission (MFE)
UA 4320 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:30 Valid until 2026-01-03
Daily 20:00 Houston George Bush (IAH) B 21:18 Jackson (JAN)
UA 4320 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:18 Effective from 2026-05-21
Daily 20:27 Houston George Bush (IAH) B 21:57 Jackson (JAN)
UA 4320 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:30 Effective 2026-03-05 through 2026-03-28
Daily 20:27 Houston George Bush (IAH) B 21:55 Jackson (JAN)
UA 4320 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:28 Effective 2026-03-29 through 2026-04-29
Daily 20:29 Houston George Bush (IAH) B 21:59 Jackson (JAN)
UA 4320 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:30 Effective 2026-02-12 through 2026-03-04
Mon-Fri,Sun 20:30 Houston George Bush (IAH) B 21:57 Jackson (JAN)
UA 4320 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:27 Effective 2026-01-06 through 2026-01-16
Mon-Fri,Sun 20:30 Houston George Bush (IAH) B 21:57 Jackson (JAN)
UA 4320 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:27 Effective 2026-01-19 through 2026-02-11
Daily 20:30 Houston George Bush (IAH) B 21:58 Jackson (JAN)
UA 4320 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:28 Effective 2026-04-30 through 2026-05-20
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This flight number is listed as serving the following routes:


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United Airlines flight UA 4320: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA4320
08:21
Washington Dulles (IAD)

09:56
John Glenn Columbus (CMH)
Effective 2026-01-10 through 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:35, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Flights:
United Airlines UA4320
16:20
Houston George Bush (IAH) B

17:50
McAllen/Mission (MFE)
Valid until 2026-01-03
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Flights:
United Airlines UA4320
20:00
Houston George Bush (IAH) B

21:18
Jackson (JAN)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:18, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Flights:
United Airlines UA4320
20:27
Houston George Bush (IAH) B

21:57
Jackson (JAN)
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:30, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Flights:
United Airlines UA4320
20:27
Houston George Bush (IAH) B

21:55
Jackson (JAN)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:28, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Flights:
United Airlines UA4320
20:29
Houston George Bush (IAH) B

21:59
Jackson (JAN)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:30, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Flights:
United Airlines UA4320
20:30
Houston George Bush (IAH) B

21:57
Jackson (JAN)
Effective 2026-01-06 through 2026-01-16
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:27, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Flights:
United Airlines UA4320
20:30
Houston George Bush (IAH) B

21:57
Jackson (JAN)
Effective 2026-01-19 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:27, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Flights:
United Airlines UA4320
20:30
Houston George Bush (IAH) B

21:58
Jackson (JAN)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:28, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
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Parallax here -
This flight number is listed as serving the following routes:
  • Houston George Bush (IAH) - Jackson (JAN)
  • Houston George Bush (IAH) - McAllen/Mission (MFE)
  • Washington Dulles (IAD) - John Glenn Columbus (CMH)
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