United Airlines flight UA 2121: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sun 06:00 Philadelphia (PHL) D 08:49 George Bush, Houston (IAH) C
UA 2121 Non-stop Boeing 737-700 (73G) 3:49 Effective 2024-10-27 through 2024-12-01
Mon-Sat 06:00 Philadelphia (PHL) D 08:49 George Bush, Houston (IAH) C
UA 2121 Non-stop Boeing 737-800 (738) 3:49 Effective 2024-10-28 through 2024-12-02
Daily 08:28 Philadelphia (PHL) D 11:55 San Francisco (SFO) 3
UA 2121 Non-stop Boeing 737 MAX 8 (7M8) 6:27 Effective 2024-12-19 through 2025-01-06
Daily 16:17 Saint Louis (STL) 1 18:35 George Bush, Houston (IAH) C
UA 2121 Non-stop Airbus A319 (319) 2:18 Effective from 2025-02-13
Daily 16:45 Saint Louis (STL) 1 19:00 George Bush, Houston (IAH) C
UA 2121 Non-stop Boeing 737-700 (73G) 2:15 Effective 2024-12-03 through 2024-12-18
Daily 16:51 Saint Louis (STL) 1 19:10 George Bush, Houston (IAH) C
UA 2121 Non-stop Airbus A319 (319) 2:19 Effective 2025-01-07 through 2025-02-12
Mon-Thu,Sat 17:01 Saint Louis (STL) 1 19:07 George Bush, Houston (IAH) C
UA 2121 Non-stop Boeing 737-700 (73G) 2:06 Valid until 2024-09-05
Sun 17:01 Saint Louis (STL) 1 19:07 George Bush, Houston (IAH) C
UA 2121 Non-stop Boeing 737 MAX 8 (7M8) 2:06 Operates only on 2024-09-01
Daily 17:01 Saint Louis (STL) 1 19:07 George Bush, Houston (IAH) C
UA 2121 Non-stop Boeing 737-700 (73G) 2:06 Effective 2024-09-06 through 2024-09-25
Mon-Fri,Sun 17:01 Saint Louis (STL) 1 19:08 George Bush, Houston (IAH) C
UA 2121 Non-stop Boeing 737-700 (73G) 2:07 Effective 2024-09-26 through 2024-10-25
Sat 17:03 Saint Louis (STL) 1 19:10 George Bush, Houston (IAH) C
UA 2121 Non-stop Boeing 737-700 (73G) 2:07 Effective 2024-09-28 through 2024-10-26
This flight number is listed as serving the following routes:


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United Airlines flight UA 2121: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA2121
06:00
Philadelphia (PHL) D

08:49
George Bush, Houston (IAH) C
Effective 2024-10-27 through 2024-12-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:49, non-stop
Boeing 737-700 (73G)
United Airlines UA2121
06:00
Philadelphia (PHL) D

08:49
George Bush, Houston (IAH) C
Effective 2024-10-28 through 2024-12-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 3:49, non-stop
Boeing 737-800 (738)
United Airlines UA2121
08:28
Philadelphia (PHL) D

11:55
San Francisco (SFO) 3
Effective 2024-12-19 through 2025-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:27, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA2121
16:17
Saint Louis (STL) 1

18:35
George Bush, Houston (IAH) C
Effective from 2025-02-13
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:18, non-stop
Airbus A319 (319)
United Airlines UA2121
16:45
Saint Louis (STL) 1

19:00
George Bush, Houston (IAH) C
Effective 2024-12-03 through 2024-12-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:15, non-stop
Boeing 737-700 (73G)
United Airlines UA2121
16:51
Saint Louis (STL) 1

19:10
George Bush, Houston (IAH) C
Effective 2025-01-07 through 2025-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:19, non-stop
Airbus A319 (319)
United Airlines UA2121
17:01
Saint Louis (STL) 1

19:07
George Bush, Houston (IAH) C
Valid until 2024-09-05
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
-
Duration: 2:06, non-stop
Boeing 737-700 (73G)
United Airlines UA2121
17:01
Saint Louis (STL) 1

19:07
George Bush, Houston (IAH) C
Operates only on 2024-09-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:06, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA2121
17:01
Saint Louis (STL) 1

19:07
George Bush, Houston (IAH) C
Effective 2024-09-06 through 2024-09-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:06, non-stop
Boeing 737-700 (73G)
United Airlines UA2121
17:01
Saint Louis (STL) 1

19:08
George Bush, Houston (IAH) C
Effective 2024-09-26 through 2024-10-25
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:07, non-stop
Boeing 737-700 (73G)
United Airlines UA2121
17:03
Saint Louis (STL) 1

19:10
George Bush, Houston (IAH) C
Effective 2024-09-28 through 2024-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:07, non-stop
Boeing 737-700 (73G)
This flight number is listed as serving the following routes:
  • Philadelphia (PHL) - George Bush, Houston (IAH)
  • Philadelphia (PHL) - San Francisco (SFO)
  • Saint Louis (STL) - George Bush, Houston (IAH)
All United Airlines flights
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