LATAM Airlines flight LA 6421: Multiple routes

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 10:11 Tallahassee (TLH) 11:23 Atlanta (ATL) S LA 6421 Non-stop Boeing 717 (717) 1:12 Effective 2026-01-19 through 2026-02-11 Codeshare flight, operated by Delta Air Lines.(DL 1168)
Wed,Thu 14:00 Knoxville (TYS) 15:12 Atlanta (ATL) S LA 6421 Non-stop Canadair CRJ 900 (CR9) 1:12 Valid until 2026-01-01 Codeshare flight, operated by Delta Air Lines.(DL 5252)
Mon,Tue,Fri,Sun 14:10 Knoxville (TYS) 15:22 Atlanta (ATL) S LA 6421 Non-stop Canadair CRJ 900 (CR9) 1:12 Valid until 2026-01-04 Codeshare flight, operated by Delta Air Lines.(DL 5252)
Sat 14:22 Knoxville (TYS) 15:34 Atlanta (ATL) S LA 6421 Non-stop Canadair CRJ 900 (CR9) 1:12 Valid until 2026-01-03 Codeshare flight, operated by Delta Air Lines.(DL 5252)
Daily 15:30 Boston Logan (BOS) A 18:33 Atlanta (ATL) S LA 6421 Non-stop Airbus A321 (321) 3:03 Effective 2026-01-05 through 2026-01-18 Codeshare flight, operated by Delta Air Lines.(DL 476)
Tue,Wed 15:30 Boston Logan (BOS) A 18:33 Atlanta (ATL) S LA 6421 Non-stop Airbus A321 (321) 3:03 Effective 2026-02-17 through 2026-03-04 Codeshare flight, operated by Delta Air Lines.(DL 476)
Mon,Thu,Fri,Sun 15:35 Boston Logan (BOS) A 18:38 Atlanta (ATL) S LA 6421 Non-stop Airbus A321 (321) 3:03 Effective 2026-02-15 through 2026-02-27 Codeshare flight, operated by Delta Air Lines.(DL 476)
Mon,Thu-Sun 15:35 Boston Logan (BOS) A 18:38 Atlanta (ATL) S LA 6421 Non-stop Airbus A321 (321) 3:03 Effective 2026-02-28 through 2026-03-07 Codeshare flight, operated by Delta Air Lines.(DL 476)
Mon-Fri,Sun 15:50 Boston Logan (BOS) A 18:47 Atlanta (ATL) S LA 6421 Non-stop Airbus A321 (321) 2:57 Effective 2026-03-08 through 2026-04-12 Codeshare flight, operated by Delta Air Lines.(DL 476)
Sat 15:55 Boston Logan (BOS) A 18:54 Atlanta (ATL) S LA 6421 Non-stop Airbus A321 (321) 2:59 Effective 2026-05-09 through 2026-05-23 Codeshare flight, operated by Delta Air Lines.(DL 399)
Sat,Sun 15:55 Boston Logan (BOS) A 18:54 Atlanta (ATL) S LA 6421 Non-stop Airbus A321 (321) 2:59 Effective 2026-05-24 through 2026-05-30 Codeshare flight, operated by Delta Air Lines.(DL 399)
Sat 15:55 Boston Logan (BOS) A 18:54 Atlanta (ATL) S LA 6421 Non-stop Airbus A321 (321) 2:59 Operates only on 2026-06-06 Codeshare flight, operated by Delta Air Lines.(DL 399)
Daily 16:20 Boston Logan (BOS) A 19:19 Atlanta (ATL) S LA 6421 Non-stop Airbus A321 (321) 2:59 Effective 2026-04-13 through 2026-05-08 Codeshare flight, operated by Delta Air Lines.(DL 399)
Mon-Fri,Sun 16:20 Boston Logan (BOS) A 19:19 Atlanta (ATL) S LA 6421 Non-stop Airbus A321 (321) 2:59 Effective 2026-05-10 through 2026-05-22 Codeshare flight, operated by Delta Air Lines.(DL 399)
Mon-Fri,Sun 16:20 Boston Logan (BOS) A 19:19 Atlanta (ATL) S LA 6421 Non-stop Airbus A321 (321) 2:59 Effective 2026-05-25 through 2026-06-12 Codeshare flight, operated by Delta Air Lines.(DL 399)
Daily 16:20 Boston Logan (BOS) A 19:19 Atlanta (ATL) S LA 6421 Non-stop Airbus A321 (321) 2:59 Effective 2026-06-13 through 2026-07-06 Codeshare flight, operated by Delta Air Lines.(DL 399)
Daily 16:20 Boston Logan (BOS) A 19:22 Atlanta (ATL) S LA 6421 Non-stop Airbus A321 (321) 3:02 Effective 2026-07-07 through 2026-10-05 Codeshare flight, operated by Delta Air Lines.(DL 399)
Daily 16:20 Boston Logan (BOS) A 19:23 Atlanta (ATL) S LA 6421 Non-stop Airbus A321 (321) 3:03 Effective from 2026-10-06 Codeshare flight, operated by Delta Air Lines.(DL 2330)
Sat 16:25 Boston Logan (BOS) A 19:32 Atlanta (ATL) S LA 6421 Non-stop Airbus A321 (321) 3:07 Operates only on 2026-02-21 Codeshare flight, operated by Delta Air Lines.(DL 476)
Sat 16:45 Boston Logan (BOS) A 19:46 Atlanta (ATL) S LA 6421 Non-stop Airbus A321 (321) 3:01 Effective 2026-03-14 through 2026-04-11 Codeshare flight, operated by Delta Air Lines.(DL 476)

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Parallax here -

This flight number is listed as serving the following routes:

Boston Logan (BOS) - Atlanta (ATL)
Knoxville (TYS) - Atlanta (ATL)
Tallahassee (TLH) - Atlanta (ATL)

All LATAM Airlines flights

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LATAM Airlines flight LA 6421: Multiple routes

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FLIGHT SCHEDULE

Direct Codeshare Flights:

LATAM Airlines LA6421

10:11

Tallahassee (TLH)

11:23

Atlanta (ATL) S

Effective 2026-01-19 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1168)

Duration: 1:12, non-stop
Boeing 717 (717)

Direct Codeshare Flights:

LATAM Airlines LA6421

14:00

Knoxville (TYS)

15:12

Atlanta (ATL) S

Valid until 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 5252)

Duration: 1:12, non-stop
Canadair CRJ 900 (CR9)

Direct Codeshare Flights:

LATAM Airlines LA6421

14:10

Knoxville (TYS)

15:22

Atlanta (ATL) S

Valid until 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 5252)

Duration: 1:12, non-stop
Canadair CRJ 900 (CR9)

Direct Codeshare Flights:

LATAM Airlines LA6421

14:22

Knoxville (TYS)

15:34

Atlanta (ATL) S

Valid until 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 5252)

Duration: 1:12, non-stop
Canadair CRJ 900 (CR9)

Direct Codeshare Flights:

LATAM Airlines LA6421

15:30

Boston Logan (BOS) A

18:33

Atlanta (ATL) S

Effective 2026-01-05 through 2026-01-18

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 476)

Duration: 3:03, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

LATAM Airlines LA6421

15:30

Boston Logan (BOS) A

18:33

Atlanta (ATL) S

Effective 2026-02-17 through 2026-03-04

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 476)

Duration: 3:03, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

LATAM Airlines LA6421

15:35

Boston Logan (BOS) A

18:38

Atlanta (ATL) S

Effective 2026-02-15 through 2026-02-27

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 476)

Duration: 3:03, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

LATAM Airlines LA6421

15:35

Boston Logan (BOS) A

18:38

Atlanta (ATL) S

Effective 2026-02-28 through 2026-03-07

Mon

Tue
-

Wed
-

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 476)

Duration: 3:03, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

LATAM Airlines LA6421

15:50

Boston Logan (BOS) A

18:47

Atlanta (ATL) S

Effective 2026-03-08 through 2026-04-12

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 476)

Duration: 2:57, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

LATAM Airlines LA6421

15:55

Boston Logan (BOS) A

18:54

Atlanta (ATL) S

Effective 2026-05-09 through 2026-05-23

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 399)

Duration: 2:59, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

LATAM Airlines LA6421

15:55

Boston Logan (BOS) A

18:54

Atlanta (ATL) S

Effective 2026-05-24 through 2026-05-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 399)

Duration: 2:59, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

LATAM Airlines LA6421

15:55

Boston Logan (BOS) A

18:54

Atlanta (ATL) S

Operates only on 2026-06-06

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 399)

Duration: 2:59, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

LATAM Airlines LA6421

16:20

Boston Logan (BOS) A

19:19

Atlanta (ATL) S

Effective 2026-04-13 through 2026-05-08

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 399)

Duration: 2:59, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

LATAM Airlines LA6421

16:20

Boston Logan (BOS) A

19:19

Atlanta (ATL) S

Effective 2026-05-10 through 2026-05-22

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 399)

Duration: 2:59, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

LATAM Airlines LA6421

16:20

Boston Logan (BOS) A

19:19

Atlanta (ATL) S

Effective 2026-05-25 through 2026-06-12

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 399)

Duration: 2:59, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

LATAM Airlines LA6421

16:20

Boston Logan (BOS) A

19:19

Atlanta (ATL) S

Effective 2026-06-13 through 2026-07-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 399)

Duration: 2:59, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

LATAM Airlines LA6421

16:20

Boston Logan (BOS) A

19:22

Atlanta (ATL) S

Effective 2026-07-07 through 2026-10-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 399)

Duration: 3:02, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

LATAM Airlines LA6421

16:20

Boston Logan (BOS) A

19:23

Atlanta (ATL) S

Effective from 2026-10-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 2330)

Duration: 3:03, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

LATAM Airlines LA6421

16:25

Boston Logan (BOS) A

19:32

Atlanta (ATL) S

Operates only on 2026-02-21

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 476)

Duration: 3:07, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

LATAM Airlines LA6421

16:45

Boston Logan (BOS) A

19:46

Atlanta (ATL) S

Effective 2026-03-14 through 2026-04-11

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 476)

Duration: 3:01, non-stop
Airbus A321 (321)

Ad mobi box here (300x250px) 8888825773 M FlightWNum Bottom Box

Parallax here -

This flight number is listed as serving the following routes:

Boston Logan (BOS) - Atlanta (ATL)
Knoxville (TYS) - Atlanta (ATL)
Tallahassee (TLH) - Atlanta (ATL)

All LATAM Airlines flights

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