American Airlines flight AA 3866: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 08:40 Dallas Fort Worth (DFW) 09:41 Killeen/Fort Hood (GRK)
AA 3866 Non-stop Embraer EMB 175 (E75) 1:01 Effective 2026-02-12 through 2026-03-07
Daily 09:59 Dallas Fort Worth (DFW) 11:00 Killeen/Fort Hood (GRK)
AA 3866 Non-stop Embraer EMB 175 (E75) 1:01 Effective 2026-09-09 through 2026-10-04
Wed,Sat 10:45 Dallas Fort Worth (DFW) 12:19 Acapulco (ACA)
AA 3866 Non-stop Embraer EMB 175 (E75) 2:34 Effective 2026-07-04 through 2026-08-01
Daily 10:56 Dallas Fort Worth (DFW) 11:40 Killeen/Fort Hood (GRK)
AA 3866 Non-stop Embraer EMB 175 (E75) 0:44 Effective 2026-08-05 through 2026-09-08
Daily 11:00 Dallas Fort Worth (DFW) 12:01 Killeen/Fort Hood (GRK)
AA 3866 Non-stop Embraer EMB 175 (E75) 1:01 Effective 2026-01-06 through 2026-02-11
Daily 12:11 Killeen/Fort Hood (GRK) 13:12 Dallas Fort Worth (DFW)
AA 3866 Non-stop Embraer EMB 175 (E75) 1:01 Effective 2026-08-05 through 2026-09-08
Daily 12:31 Killeen/Fort Hood (GRK) 13:33 Dallas Fort Worth (DFW)
AA 3866 Non-stop Embraer EMB 175 (E75) 1:02 Effective 2026-01-06 through 2026-02-11
Daily 12:44 Killeen/Fort Hood (GRK) 13:45 Dallas Fort Worth (DFW)
AA 3866 Non-stop Embraer EMB 175 (E75) 1:01 Effective 2026-09-09 through 2026-10-04
Daily 16:45 Nashville (BNA) 20:06 Miami (MIA)
AA 3866 Non-stop Embraer EMB 175 (E75) 2:21 Effective 2026-04-07 through 2026-05-20
This flight number is listed as serving the following routes:


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American Airlines flight AA 3866: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
American Airlines AA3866
08:40
Dallas Fort Worth (DFW)

09:41
Killeen/Fort Hood (GRK)
Effective 2026-02-12 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:01, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3866
09:59
Dallas Fort Worth (DFW)

11:00
Killeen/Fort Hood (GRK)
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:01, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3866
10:45
Dallas Fort Worth (DFW)

12:19
Acapulco (ACA)
Effective 2026-07-04 through 2026-08-01
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:34, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3866
10:56
Dallas Fort Worth (DFW)

11:40
Killeen/Fort Hood (GRK)
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 0:44, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3866
11:00
Dallas Fort Worth (DFW)

12:01
Killeen/Fort Hood (GRK)
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:01, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3866
12:11
Killeen/Fort Hood (GRK)

13:12
Dallas Fort Worth (DFW)
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:01, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3866
12:31
Killeen/Fort Hood (GRK)

13:33
Dallas Fort Worth (DFW)
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:02, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3866
12:44
Killeen/Fort Hood (GRK)

13:45
Dallas Fort Worth (DFW)
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:01, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3866
16:45
Nashville (BNA)

20:06
Miami (MIA)
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:21, non-stop
Embraer EMB 175 (E75)
This flight number is listed as serving the following routes:
  • Dallas Fort Worth (DFW) - Acapulco (ACA)
  • Killeen/Fort Hood (GRK) - Dallas Fort Worth (DFW)
  • Nashville (BNA) - Miami (MIA)
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