United Airlines flight UA 4231: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 08:30 Dulles, Washington (IAD) 09:52 Greensboro/High Point (GSO)
UA 4231 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:22 Valid until 2025-05-21
Sat,Sun 12:35 Dulles, Washington (IAD) 14:11 Providence (PVD)
UA 4231 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:36 Effective 2025-08-02 through 2025-08-17
Daily 14:10 Lafayette (LFT) 15:25 George Bush, Houston (IAH) B
UA 4231 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:15 Effective 2025-05-22 through 2025-06-25
Daily 15:05 Springfield (SGF) 17:12 George Bush, Houston (IAH) B
UA 4231 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 2:07 Effective 2025-08-19 through 2025-10-25
Tue,Wed 16:30 Springfield (SGF) 18:38 George Bush, Houston (IAH) B
UA 4231 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 2:08 Effective 2025-07-01 through 2025-08-13
Daily 16:48 Springfield (SGF) 18:51 George Bush, Houston (IAH) B
UA 4231 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 2:03 Effective from 2025-10-26
Mon,Thu,Fri 16:55 Springfield (SGF) 19:03 George Bush, Houston (IAH) B
UA 4231 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 2:08 Effective 2025-06-26 through 2025-07-03
Mon,Thu,Fri 16:55 Springfield (SGF) 19:03 George Bush, Houston (IAH) B
UA 4231 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 2:08 Effective 2025-07-07 through 2025-08-18
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This flight number is listed as serving the following routes:


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United Airlines flight UA 4231: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA4231
08:30
Dulles, Washington (IAD)

09:52
Greensboro/High Point (GSO)
Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:22, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
United Airlines UA4231
12:35
Dulles, Washington (IAD)

14:11
Providence (PVD)
Effective 2025-08-02 through 2025-08-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 1:36, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
United Airlines UA4231
14:10
Lafayette (LFT)

15:25
George Bush, Houston (IAH) B
Effective 2025-05-22 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:15, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
United Airlines UA4231
15:05
Springfield (SGF)

17:12
George Bush, Houston (IAH) B
Effective 2025-08-19 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:07, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
United Airlines UA4231
16:30
Springfield (SGF)

18:38
George Bush, Houston (IAH) B
Effective 2025-07-01 through 2025-08-13
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:08, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
United Airlines UA4231
16:48
Springfield (SGF)

18:51
George Bush, Houston (IAH) B
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:03, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
United Airlines UA4231
16:55
Springfield (SGF)

19:03
George Bush, Houston (IAH) B
Effective 2025-06-26 through 2025-07-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:08, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
United Airlines UA4231
16:55
Springfield (SGF)

19:03
George Bush, Houston (IAH) B
Effective 2025-07-07 through 2025-08-18
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:08, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
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This flight number is listed as serving the following routes:
  • Dulles, Washington (IAD) - Greensboro/High Point (GSO)
  • Dulles, Washington (IAD) - Providence (PVD)
  • Lafayette (LFT) - George Bush, Houston (IAH)
  • Springfield (SGF) - George Bush, Houston (IAH)
All United Airlines flights
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