American Airlines flight AA 3999: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 12:19 Dallas Fort Worth (DFW) 13:49 Garden City (GCK)
AA 3999 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:30 Effective 2025-08-06 through 2025-09-02
Daily 12:19 Dallas Fort Worth (DFW) 13:47 Garden City (GCK)
AA 3999 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:28 Effective 2025-11-02 through 2026-01-05
Daily 12:19 Dallas Fort Worth (DFW) 13:50 Garden City (GCK)
AA 3999 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:31 Effective 2026-01-06 through 2026-02-11
Daily 12:19 Dallas Fort Worth (DFW) 13:45 Garden City (GCK)
AA 3999 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:26 Effective from 2026-02-12
Daily 12:58 Dallas Fort Worth (DFW) 14:33 Garden City (GCK)
AA 3999 Non-stop Embraer EMB 175 (E75) 1:35 Effective 2025-06-05 through 2025-07-03
Fri 12:59 Dallas Fort Worth (DFW) 14:34 Garden City (GCK)
AA 3999 Non-stop Embraer EMB 175 (E75) 1:35 Operates only on 2025-07-04
Daily 13:03 Dallas Fort Worth (DFW) 14:31 Garden City (GCK)
AA 3999 Non-stop Embraer EMB 175 (E75) 1:28 Effective 2025-07-05 through 2025-08-05
Daily 13:21 Dallas Fort Worth (DFW) 14:44 Garden City (GCK)
AA 3999 Non-stop Embraer EMB 175 (E75) 1:23 Valid until 2025-05-04
Daily 13:38 Dallas Fort Worth (DFW) 15:06 Garden City (GCK)
AA 3999 Non-stop Embraer EMB 175 (E75) 1:28 Effective 2025-05-05 through 2025-06-04
Daily 14:31 Garden City (GCK) 15:55 Dallas Fort Worth (DFW)
AA 3999 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:24 Effective 2025-08-06 through 2025-09-02
Daily 15:03 Garden City (GCK) 16:29 Dallas Fort Worth (DFW)
AA 3999 Non-stop Embraer EMB 175 (E75) 1:26 Effective 2025-06-05 through 2025-07-03
Daily 15:03 Garden City (GCK) 16:34 Dallas Fort Worth (DFW)
AA 3999 Non-stop Embraer EMB 175 (E75) 1:31 Effective 2025-07-05 through 2025-08-05
Fri 15:04 Garden City (GCK) 16:30 Dallas Fort Worth (DFW)
AA 3999 Non-stop Embraer EMB 175 (E75) 1:26 Operates only on 2025-07-04
Daily 15:19 Garden City (GCK) 16:44 Dallas Fort Worth (DFW)
AA 3999 Non-stop Embraer EMB 175 (E75) 1:25 Valid until 2025-05-04
Sat 15:36 Garden City (GCK) 16:59 Dallas Fort Worth (DFW)
AA 3999 Non-stop Embraer EMB 175 (E75) 1:23 Effective 2025-05-10 through 2025-05-31
Mon-Fri,Sun 15:38 Garden City (GCK) 17:04 Dallas Fort Worth (DFW)
AA 3999 Non-stop Embraer EMB 175 (E75) 1:26 Effective 2025-05-05 through 2025-06-04
Daily 16:14 Garden City (GCK) 17:50 Dallas Fort Worth (DFW)
AA 3999 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:36 Effective 2025-12-03 through 2026-01-05
Daily 16:15 Garden City (GCK) 17:50 Dallas Fort Worth (DFW)
AA 3999 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:35 Effective 2026-01-06 through 2026-02-11
Daily 16:18 Garden City (GCK) 17:50 Dallas Fort Worth (DFW)
AA 3999 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:32 Effective 2025-11-02 through 2025-12-02
Daily 16:21 Garden City (GCK) 17:50 Dallas Fort Worth (DFW)
AA 3999 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:29 Effective from 2026-02-12
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This flight number is listed as serving the following routes:


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American Airlines flight AA 3999: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
American Airlines AA3999
12:19
Dallas Fort Worth (DFW)

13:49
Garden City (GCK)
Effective 2025-08-06 through 2025-09-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:30, non-stop
Embraer EMB 170 / EMB 175 (E70)
American Airlines AA3999
12:19
Dallas Fort Worth (DFW)

13:47
Garden City (GCK)
Effective 2025-11-02 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:28, non-stop
Embraer EMB 170 / EMB 175 (E70)
American Airlines AA3999
12:19
Dallas Fort Worth (DFW)

13:50
Garden City (GCK)
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:31, non-stop
Embraer EMB 170 / EMB 175 (E70)
American Airlines AA3999
12:19
Dallas Fort Worth (DFW)

13:45
Garden City (GCK)
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:26, non-stop
Embraer EMB 170 / EMB 175 (E70)
American Airlines AA3999
12:58
Dallas Fort Worth (DFW)

14:33
Garden City (GCK)
Effective 2025-06-05 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:35, non-stop
Embraer EMB 175 (E75)
American Airlines AA3999
12:59
Dallas Fort Worth (DFW)

14:34
Garden City (GCK)
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:35, non-stop
Embraer EMB 175 (E75)
American Airlines AA3999
13:03
Dallas Fort Worth (DFW)

14:31
Garden City (GCK)
Effective 2025-07-05 through 2025-08-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:28, non-stop
Embraer EMB 175 (E75)
American Airlines AA3999
13:21
Dallas Fort Worth (DFW)

14:44
Garden City (GCK)
Valid until 2025-05-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:23, non-stop
Embraer EMB 175 (E75)
American Airlines AA3999
13:38
Dallas Fort Worth (DFW)

15:06
Garden City (GCK)
Effective 2025-05-05 through 2025-06-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:28, non-stop
Embraer EMB 175 (E75)
American Airlines AA3999
14:31
Garden City (GCK)

15:55
Dallas Fort Worth (DFW)
Effective 2025-08-06 through 2025-09-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:24, non-stop
Embraer EMB 170 / EMB 175 (E70)
American Airlines AA3999
15:03
Garden City (GCK)

16:29
Dallas Fort Worth (DFW)
Effective 2025-06-05 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:26, non-stop
Embraer EMB 175 (E75)
American Airlines AA3999
15:03
Garden City (GCK)

16:34
Dallas Fort Worth (DFW)
Effective 2025-07-05 through 2025-08-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:31, non-stop
Embraer EMB 175 (E75)
American Airlines AA3999
15:04
Garden City (GCK)

16:30
Dallas Fort Worth (DFW)
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:26, non-stop
Embraer EMB 175 (E75)
American Airlines AA3999
15:19
Garden City (GCK)

16:44
Dallas Fort Worth (DFW)
Valid until 2025-05-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:25, non-stop
Embraer EMB 175 (E75)
American Airlines AA3999
15:36
Garden City (GCK)

16:59
Dallas Fort Worth (DFW)
Effective 2025-05-10 through 2025-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:23, non-stop
Embraer EMB 175 (E75)
American Airlines AA3999
15:38
Garden City (GCK)

17:04
Dallas Fort Worth (DFW)
Effective 2025-05-05 through 2025-06-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:26, non-stop
Embraer EMB 175 (E75)
American Airlines AA3999
16:14
Garden City (GCK)

17:50
Dallas Fort Worth (DFW)
Effective 2025-12-03 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:36, non-stop
Embraer EMB 170 / EMB 175 (E70)
American Airlines AA3999
16:15
Garden City (GCK)

17:50
Dallas Fort Worth (DFW)
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:35, non-stop
Embraer EMB 170 / EMB 175 (E70)
American Airlines AA3999
16:18
Garden City (GCK)

17:50
Dallas Fort Worth (DFW)
Effective 2025-11-02 through 2025-12-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:32, non-stop
Embraer EMB 170 / EMB 175 (E70)
American Airlines AA3999
16:21
Garden City (GCK)

17:50
Dallas Fort Worth (DFW)
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:29, non-stop
Embraer EMB 170 / EMB 175 (E70)
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This flight number is listed as serving the following routes:
  • Dallas Fort Worth (DFW) - Garden City (GCK)
All American Airlines flights
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