American Airlines flight AA 3121: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 07:55 Port of Spain (POS) 12:00 Miami (MIA)
AA 3121 Non-stop Boeing 737 MAX 8 (7M8) 4:05 Effective 2026-05-21 through 2026-07-01
Daily 08:00 Port of Spain (POS) 12:00 Miami (MIA)
AA 3121 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Effective 2026-07-02 through 2026-08-04
Daily 08:38 Dallas Fort Worth (DFW) 09:59 San Diego (SAN) 2
AA 3121 Non-stop Airbus A321 (321) 3:21 Effective 2026-02-12 through 2026-03-07
Daily 10:51 San Diego (SAN) 2 15:52 Dallas Fort Worth (DFW)
AA 3121 Non-stop Airbus A321 (321) 3:01 Effective 2026-02-12 through 2026-03-07
Daily 15:25 Fort Myers (RSW) 18:14 New York LaGuardia (LGA) B
AA 3121 Non-stop Boeing 737-800 (738) 2:49 Effective 2026-04-07 through 2026-05-20
Daily 16:35 Dallas Fort Worth (DFW) 17:42 Houston George Bush (IAH) A
AA 3121 Non-stop Airbus A321 (321) 1:07 Effective from 2026-10-05
Daily 17:10 Dallas Fort Worth (DFW) 20:44 Detroit (DTW) E
AA 3121 Non-stop Boeing 737-800 (738) 2:34 Effective 2026-01-06 through 2026-01-17
Daily 17:10 Dallas Fort Worth (DFW) 20:44 Detroit (DTW) E
AA 3121 Non-stop Boeing 737-800 (738) 2:34 Effective 2026-01-19 through 2026-02-02
Daily 17:10 Dallas Fort Worth (DFW) 20:44 Detroit (DTW) E
AA 3121 Non-stop Boeing 737-800 (738) 2:34 Effective 2026-02-04 through 2026-02-11
Daily 17:37 Phoenix Sky Harbor (PHX) 4 19:02 San Diego (SAN) 2
AA 3121 Non-stop Boeing 737-800 (738) 1:25 Effective 2026-03-08 through 2026-04-06
Mon,Tue,Thu-Sun 18:22 Phoenix Sky Harbor (PHX) 4 18:37 San Diego (SAN) 2
AA 3121 Non-stop Airbus A321neo (32Q) 1:15 Valid until 2026-01-05
Mon,Tue,Thu-Sun 19:30 San Diego (SAN) 2 22:00 Phoenix Sky Harbor (PHX) 4
AA 3121 Non-stop Airbus A321neo (32Q) 1:30 Valid until 2026-01-05
Daily 19:52 San Diego (SAN) 2 21:20 Phoenix Sky Harbor (PHX) 4
AA 3121 Non-stop Boeing 737-800 (738) 1:28 Effective 2026-03-08 through 2026-04-06
Daily 20:28 Houston George Bush (IAH) A 21:50 Dallas Fort Worth (DFW)
AA 3121 Non-stop Airbus A321 (321) 1:22 Effective from 2026-10-05
This flight number is listed as serving the following routes:


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American Airlines flight AA 3121: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
American Airlines AA3121
07:55
Port of Spain (POS)

12:00
Miami (MIA)
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:05, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
American Airlines AA3121
08:00
Port of Spain (POS)

12:00
Miami (MIA)
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
American Airlines AA3121
08:38
Dallas Fort Worth (DFW)

09:59
San Diego (SAN) 2
Effective 2026-02-12 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:21, non-stop
Airbus A321 (321)
Direct Flights:
American Airlines AA3121
10:51
San Diego (SAN) 2

15:52
Dallas Fort Worth (DFW)
Effective 2026-02-12 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:01, non-stop
Airbus A321 (321)
Direct Flights:
American Airlines AA3121
15:25
Fort Myers (RSW)

18:14
New York LaGuardia (LGA) B
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:49, non-stop
Boeing 737-800 (738)
Direct Flights:
American Airlines AA3121
16:35
Dallas Fort Worth (DFW)

17:42
Houston George Bush (IAH) A
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:07, non-stop
Airbus A321 (321)
Direct Flights:
American Airlines AA3121
17:10
Dallas Fort Worth (DFW)

20:44
Detroit (DTW) E
Effective 2026-01-06 through 2026-01-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:34, non-stop
Boeing 737-800 (738)
Direct Flights:
American Airlines AA3121
17:10
Dallas Fort Worth (DFW)

20:44
Detroit (DTW) E
Effective 2026-01-19 through 2026-02-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:34, non-stop
Boeing 737-800 (738)
Direct Flights:
American Airlines AA3121
17:10
Dallas Fort Worth (DFW)

20:44
Detroit (DTW) E
Effective 2026-02-04 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:34, non-stop
Boeing 737-800 (738)
Direct Flights:
American Airlines AA3121
17:37
Phoenix Sky Harbor (PHX) 4

19:02
San Diego (SAN) 2
Effective 2026-03-08 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:25, non-stop
Boeing 737-800 (738)
Direct Flights:
American Airlines AA3121
18:22
Phoenix Sky Harbor (PHX) 4

18:37
San Diego (SAN) 2
Valid until 2026-01-05
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Duration: 1:15, non-stop
Airbus A321neo (32Q)
Direct Flights:
American Airlines AA3121
19:30
San Diego (SAN) 2

22:00
Phoenix Sky Harbor (PHX) 4
Valid until 2026-01-05
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Duration: 1:30, non-stop
Airbus A321neo (32Q)
Direct Flights:
American Airlines AA3121
19:52
San Diego (SAN) 2

21:20
Phoenix Sky Harbor (PHX) 4
Effective 2026-03-08 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:28, non-stop
Boeing 737-800 (738)
Direct Flights:
American Airlines AA3121
20:28
Houston George Bush (IAH) A

21:50
Dallas Fort Worth (DFW)
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:22, non-stop
Airbus A321 (321)
This flight number is listed as serving the following routes:
  • Dallas Fort Worth (DFW) - Detroit (DTW)
  • Dallas Fort Worth (DFW) - Houston George Bush (IAH)
  • Dallas Fort Worth (DFW) - San Diego (SAN)
  • Fort Myers (RSW) - New York LaGuardia (LGA)
  • Phoenix Sky Harbor (PHX) - San Diego (SAN)
  • Port of Spain (POS) - Miami (MIA)
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