American Airlines flight AA 3878: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 05:22 Mobile (MOB) 07:34 Dallas Fort Worth (DFW)
AA 3878 Non-stop Embraer EMB 175 (E75) 2:12 Effective 2026-02-12 through 2026-04-06
Mon-Fri 07:00 Syracuse (SYR) 08:42 Chicago O'Hare (ORD) 3
AA 3878 Non-stop Embraer EMB 175 (E75) 2:42 Effective 2026-01-07 through 2026-02-11
Sat,Sun 07:00 Syracuse (SYR) 08:42 Chicago O'Hare (ORD) 3
AA 3878 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:42 Effective 2026-01-10 through 2026-01-17
Sat,Sun 07:00 Syracuse (SYR) 08:42 Chicago O'Hare (ORD) 3
AA 3878 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:42 Effective 2026-01-24 through 2026-02-08
Daily 08:30 Miami (MIA) 09:56 Tallahassee (TLH)
AA 3878 Non-stop Embraer EMB 175 (E75) 1:26 Effective 2026-04-07 through 2026-05-20
Daily 09:40 Chicago O'Hare (ORD) 3 12:56 Newark Liberty, New York (EWR) A
AA 3878 Non-stop Embraer EMB 175 (E75) 2:16 Effective 2026-09-09 through 2026-10-04
Sat 09:53 Charlotte (CLT) 12:19 Nantucket (ACK)
AA 3878 Non-stop Embraer EMB 175 (E75) 2:26 Effective 2026-07-04 through 2026-08-01
Daily 09:59 Tallahassee (TLH) 11:20 Miami (MIA)
AA 3878 Non-stop Embraer EMB 175 (E75) 1:21 Effective 2026-04-07 through 2026-05-20
Sun 11:00 Syracuse (SYR) 12:42 Chicago O'Hare (ORD) 3
AA 3878 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:42 Operates only on 2026-01-18
Sat 12:50 Nantucket (ACK) 15:10 Charlotte (CLT)
AA 3878 Non-stop Embraer EMB 175 (E75) 2:20 Effective 2026-07-04 through 2026-08-01
Daily 14:30 Newark Liberty, New York (EWR) A 16:10 Chicago O'Hare (ORD) 3
AA 3878 Non-stop Embraer EMB 175 (E75) 2:40 Effective 2026-09-09 through 2026-10-04
Daily 16:45 Phoenix Sky Harbor (PHX) 4 18:00 Albuquerque (ABQ)
AA 3878 Non-stop Embraer EMB 175 (E75) 1:15 Valid until 2026-01-05
Mon,Tue,Thu-Sun 18:30 Albuquerque (ABQ) 20:00 Phoenix Sky Harbor (PHX) 4
AA 3878 Non-stop Embraer EMB 175 (E75) 1:30 Valid until 2026-01-05
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This flight number is listed as serving the following routes:


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American Airlines flight AA 3878: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
American Airlines AA3878
05:22
Mobile (MOB)

07:34
Dallas Fort Worth (DFW)
Effective 2026-02-12 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:12, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3878
07:00
Syracuse (SYR)

08:42
Chicago O'Hare (ORD) 3
Effective 2026-01-07 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:42, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3878
07:00
Syracuse (SYR)

08:42
Chicago O'Hare (ORD) 3
Effective 2026-01-10 through 2026-01-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 2:42, non-stop
Embraer EMB 170 / EMB 175 (E70)
Direct Flights:
American Airlines AA3878
07:00
Syracuse (SYR)

08:42
Chicago O'Hare (ORD) 3
Effective 2026-01-24 through 2026-02-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 2:42, non-stop
Embraer EMB 170 / EMB 175 (E70)
Direct Flights:
American Airlines AA3878
08:30
Miami (MIA)

09:56
Tallahassee (TLH)
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:26, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3878
09:40
Chicago O'Hare (ORD) 3

12:56
Newark Liberty, New York (EWR) A
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:16, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3878
09:53
Charlotte (CLT)

12:19
Nantucket (ACK)
Effective 2026-07-04 through 2026-08-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:26, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3878
09:59
Tallahassee (TLH)

11:20
Miami (MIA)
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:21, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3878
11:00
Syracuse (SYR)

12:42
Chicago O'Hare (ORD) 3
Operates only on 2026-01-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:42, non-stop
Embraer EMB 170 / EMB 175 (E70)
Direct Flights:
American Airlines AA3878
12:50
Nantucket (ACK)

15:10
Charlotte (CLT)
Effective 2026-07-04 through 2026-08-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:20, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3878
14:30
Newark Liberty, New York (EWR) A

16:10
Chicago O'Hare (ORD) 3
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:40, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3878
16:45
Phoenix Sky Harbor (PHX) 4

18:00
Albuquerque (ABQ)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:15, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3878
18:30
Albuquerque (ABQ)

20:00
Phoenix Sky Harbor (PHX) 4
Valid until 2026-01-05
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Duration: 1:30, non-stop
Embraer EMB 175 (E75)
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This flight number is listed as serving the following routes:
  • Albuquerque (ABQ) - Phoenix Sky Harbor (PHX)
  • Mobile (MOB) - Dallas Fort Worth (DFW)
  • Nantucket (ACK) - Charlotte (CLT)
  • Newark Liberty, New York (EWR) - Chicago O'Hare (ORD)
  • Syracuse (SYR) - Chicago O'Hare (ORD)
  • Tallahassee (TLH) - Miami (MIA)
All American Airlines flights
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