American Airlines flight AA 3621: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 10:33 Dallas Fort Worth (DFW) 12:57 Sioux Falls (FSD)
AA 3621 Non-stop Embraer EMB 175 (E75) 2:24 Effective 2026-08-05 through 2026-09-08
Daily 13:27 Sioux Falls (FSD) 15:42 Dallas Fort Worth (DFW)
AA 3621 Non-stop Embraer EMB 175 (E75) 2:15 Effective 2026-08-05 through 2026-09-08
Daily 14:18 Miami (MIA) 15:31 Tampa (TPA)
AA 3621 Non-stop Embraer EMB 175 (E75) 1:13 Valid until 2026-01-05
Sun 14:23 Miami (MIA) 15:50 Tallahassee (TLH)
AA 3621 Non-stop Embraer EMB 175 (E75) 1:27 Operates only on 2026-01-11
Daily 14:25 Dallas Fort Worth (DFW) 17:37 Lexington (LEX)
AA 3621 Non-stop Embraer EMB 175 (E75) 2:12 Effective 2026-05-21 through 2026-07-01
Daily 14:33 Miami (MIA) 15:41 Tampa (TPA)
AA 3621 Non-stop Embraer EMB 175 (E75) 1:08 Effective 2026-02-12 through 2026-03-07
Mon-Sat 14:35 Miami (MIA) 15:40 Tampa (TPA)
AA 3621 Non-stop Embraer EMB 175 (E75) 1:05 Effective 2026-01-06 through 2026-01-17
Daily 14:35 Miami (MIA) 15:40 Tampa (TPA)
AA 3621 Non-stop Embraer EMB 175 (E75) 1:05 Effective 2026-01-18 through 2026-02-11
Daily 14:40 Dallas Fort Worth (DFW) 15:49 Lubbock (LBB)
AA 3621 Non-stop Embraer EMB 175 (E75) 1:09 Effective 2026-07-02 through 2026-08-04
Daily 16:26 Lubbock (LBB) 17:50 Dallas Fort Worth (DFW)
AA 3621 Non-stop Embraer EMB 175 (E75) 1:24 Effective 2026-07-02 through 2026-08-04
Daily 18:26 Lexington (LEX) 20:00 Dallas Fort Worth (DFW)
AA 3621 Non-stop Embraer EMB 175 (E75) 2:34 Effective 2026-05-21 through 2026-07-01
Daily 18:30 Dallas Fort Worth (DFW) 22:07 Myrtle Beach (MYR)
AA 3621 Non-stop Embraer EMB 175 (E75) 2:37 Effective from 2026-10-05
Mon-Fri,Sun 18:34 Rochester (RST) 20:10 Chicago O'Hare (ORD) 3
AA 3621 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:36 Effective 2026-03-08 through 2026-04-06
Daily 18:50 Dallas Fort Worth (DFW) 19:41 Killeen/Fort Hood (GRK)
AA 3621 Non-stop Embraer EMB 175 (E75) 0:51 Effective 2026-04-07 through 2026-05-20
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This flight number is listed as serving the following routes:


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American Airlines flight AA 3621: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
American Airlines AA3621
10:33
Dallas Fort Worth (DFW)

12:57
Sioux Falls (FSD)
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:24, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3621
13:27
Sioux Falls (FSD)

15:42
Dallas Fort Worth (DFW)
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:15, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3621
14:18
Miami (MIA)

15:31
Tampa (TPA)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:13, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3621
14:23
Miami (MIA)

15:50
Tallahassee (TLH)
Operates only on 2026-01-11
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:27, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3621
14:25
Dallas Fort Worth (DFW)

17:37
Lexington (LEX)
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:12, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3621
14:33
Miami (MIA)

15:41
Tampa (TPA)
Effective 2026-02-12 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:08, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3621
14:35
Miami (MIA)

15:40
Tampa (TPA)
Effective 2026-01-06 through 2026-01-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 1:05, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3621
14:35
Miami (MIA)

15:40
Tampa (TPA)
Effective 2026-01-18 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:05, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3621
14:40
Dallas Fort Worth (DFW)

15:49
Lubbock (LBB)
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:09, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3621
16:26
Lubbock (LBB)

17:50
Dallas Fort Worth (DFW)
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:24, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3621
18:26
Lexington (LEX)

20:00
Dallas Fort Worth (DFW)
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:34, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3621
18:30
Dallas Fort Worth (DFW)

22:07
Myrtle Beach (MYR)
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:37, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3621
18:34
Rochester (RST)

20:10
Chicago O'Hare (ORD) 3
Effective 2026-03-08 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:36, non-stop
Embraer EMB 170 / EMB 175 (E70)
Direct Flights:
American Airlines AA3621
18:50
Dallas Fort Worth (DFW)

19:41
Killeen/Fort Hood (GRK)
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 0:51, non-stop
Embraer EMB 175 (E75)
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This flight number is listed as serving the following routes:
  • Dallas Fort Worth (DFW) - Killeen/Fort Hood (GRK)
  • Dallas Fort Worth (DFW) - Lubbock (LBB)
  • Dallas Fort Worth (DFW) - Myrtle Beach (MYR)
  • Dallas Fort Worth (DFW) - Sioux Falls (FSD)
  • Lexington (LEX) - Dallas Fort Worth (DFW)
  • Miami (MIA) - Tallahassee (TLH)
  • Miami (MIA) - Tampa (TPA)
  • Rochester (RST) - Chicago O'Hare (ORD)
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