KLM flight KL 5421: Multiple routes

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon-Fri,Sun 09:30 Kansas City (MCI) 13:44 Boston Logan (BOS) A KL 5421 Non-stop Embraer EMB 175 (E75) 3:14 Effective 2025-06-29 through 2025-07-04 Codeshare flight, operated by Delta Air Lines.(DL 5760)
Fri 09:40 Kansas City (MCI) 13:42 Boston Logan (BOS) A KL 5421 Non-stop Embraer EMB 175 (E75) 3:02 Operates only on 2025-05-02 Codeshare flight, operated by Delta Air Lines.(DL 5827)
Mon-Fri,Sun 10:10 Kansas City (MCI) 14:16 Boston Logan (BOS) A KL 5421 Non-stop Embraer EMB 175 (E75) 3:06 Effective 2025-07-07 through 2025-08-15 Codeshare flight, operated by Delta Air Lines.(DL 5844)
Daily 10:10 Kansas City (MCI) 14:16 Boston Logan (BOS) A KL 5421 Non-stop Embraer EMB 175 (E75) 3:06 Effective 2025-08-16 through 2025-09-07 Codeshare flight, operated by Delta Air Lines.(DL 5844)
Daily 10:10 Kansas City (MCI) 14:18 Boston Logan (BOS) A KL 5421 Non-stop Embraer EMB 175 (E75) 3:08 Effective 2025-09-08 through 2025-10-24 Codeshare flight, operated by Delta Air Lines.(DL 5844)
Sat 11:20 Kansas City (MCI) 15:26 Boston Logan (BOS) A KL 5421 Non-stop Embraer EMB 175 (E75) 3:06 Effective 2025-07-12 through 2025-08-09 Codeshare flight, operated by Delta Air Lines.(DL 5844)
Sat 11:55 Kansas City (MCI) 16:04 Boston Logan (BOS) A KL 5421 Non-stop Airbus A220-100 (221) 3:09 Effective 2025-05-10 through 2025-06-07 Codeshare flight, operated by Delta Air Lines.(DL 1053)
Sun 11:55 Kansas City (MCI) 16:08 Boston Logan (BOS) A KL 5421 Non-stop Embraer EMB 175 (E75) 3:13 Operates only on 2025-05-25 Codeshare flight, operated by Delta Air Lines.(DL 5805)
Sat 12:55 Kansas City (MCI) 16:58 Boston Logan (BOS) A KL 5421 Non-stop Embraer EMB 175 (E75) 3:03 Valid until 2025-05-03 Codeshare flight, operated by Delta Air Lines.(DL 5827)
Daily 15:25 Atlanta (ATL) S 15:27 Huntsville (HSV) KL 5421 Non-stop Canadair CRJ 900 (CR9) 1:02 Effective 2025-12-20 through 2026-01-05 Codeshare flight, operated by Delta Air Lines.(DL 4883)
Daily 16:10 Huntsville (HSV) 18:12 Atlanta (ATL) S KL 5421 Non-stop Canadair CRJ 900 (CR9) 1:02 Effective 2025-12-20 through 2026-01-05 Codeshare flight, operated by Delta Air Lines.(DL 4883)
Daily 19:00 Atlanta (ATL) S 18:57 Huntsville (HSV) KL 5421 Non-stop Boeing 717 (717) 0:57 Effective 2025-10-26 through 2025-12-19 Codeshare flight, operated by Delta Air Lines.(DL 3171)
Daily 19:00 Atlanta (ATL) S 18:57 Huntsville (HSV) KL 5421 Non-stop Boeing 717 (717) 0:57 Effective from 2026-01-06 Codeshare flight, operated by Delta Air Lines.(DL 3171)
Daily 19:40 Huntsville (HSV) 21:47 Atlanta (ATL) S KL 5421 Non-stop Boeing 717 (717) 1:07 Effective 2025-10-26 through 2025-12-19 Codeshare flight, operated by Delta Air Lines.(DL 3171)
Daily 19:40 Huntsville (HSV) 21:47 Atlanta (ATL) S KL 5421 Non-stop Boeing 717 (717) 1:07 Effective from 2026-01-06 Codeshare flight, operated by Delta Air Lines.(DL 3171)

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This flight number is listed as serving the following routes:

Huntsville (HSV) - Atlanta (ATL)
Kansas City (MCI) - Boston Logan (BOS)

All KLM flights

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KLM flight KL 5421: Multiple routes

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FLIGHT SCHEDULE

Direct Codeshare Flights:

KLM KL5421

09:30

Kansas City (MCI)

13:44

Boston Logan (BOS) A

Effective 2025-06-29 through 2025-07-04

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 5760)

Duration: 3:14, non-stop
Embraer EMB 175 (E75)

KLM KL5421

09:40

Kansas City (MCI)

13:42

Boston Logan (BOS) A

Operates only on 2025-05-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 5827)

Duration: 3:02, non-stop
Embraer EMB 175 (E75)

KLM KL5421

10:10

Kansas City (MCI)

14:16

Boston Logan (BOS) A

Effective 2025-07-07 through 2025-08-15

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 5844)

Duration: 3:06, non-stop
Embraer EMB 175 (E75)

KLM KL5421

10:10

Kansas City (MCI)

14:16

Boston Logan (BOS) A

Effective 2025-08-16 through 2025-09-07

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 5844)

Duration: 3:06, non-stop
Embraer EMB 175 (E75)

KLM KL5421

10:10

Kansas City (MCI)

14:18

Boston Logan (BOS) A

Effective 2025-09-08 through 2025-10-24

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 5844)

Duration: 3:08, non-stop
Embraer EMB 175 (E75)

KLM KL5421

11:20

Kansas City (MCI)

15:26

Boston Logan (BOS) A

Effective 2025-07-12 through 2025-08-09

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 5844)

Duration: 3:06, non-stop
Embraer EMB 175 (E75)

KLM KL5421

11:55

Kansas City (MCI)

16:04

Boston Logan (BOS) A

Effective 2025-05-10 through 2025-06-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1053)

Duration: 3:09, non-stop
Airbus A220-100 (221)

KLM KL5421

11:55

Kansas City (MCI)

16:08

Boston Logan (BOS) A

Operates only on 2025-05-25

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 5805)

Duration: 3:13, non-stop
Embraer EMB 175 (E75)

KLM KL5421

12:55

Kansas City (MCI)

16:58

Boston Logan (BOS) A

Valid until 2025-05-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 5827)

Duration: 3:03, non-stop
Embraer EMB 175 (E75)

KLM KL5421

15:25

Atlanta (ATL) S

15:27

Huntsville (HSV)

Effective 2025-12-20 through 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 4883)

Duration: 1:02, non-stop
Canadair CRJ 900 (CR9)

KLM KL5421

16:10

Huntsville (HSV)

18:12

Atlanta (ATL) S

Effective 2025-12-20 through 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 4883)

Duration: 1:02, non-stop
Canadair CRJ 900 (CR9)

KLM KL5421

19:00

Atlanta (ATL) S

18:57

Huntsville (HSV)

Effective 2025-10-26 through 2025-12-19

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 3171)

Duration: 0:57, non-stop
Boeing 717 (717)

KLM KL5421

19:00

Atlanta (ATL) S

18:57

Huntsville (HSV)

Effective from 2026-01-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 3171)

Duration: 0:57, non-stop
Boeing 717 (717)

KLM KL5421

19:40

Huntsville (HSV)

21:47

Atlanta (ATL) S

Effective 2025-10-26 through 2025-12-19

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 3171)

Duration: 1:07, non-stop
Boeing 717 (717)

KLM KL5421

19:40

Huntsville (HSV)

21:47

Atlanta (ATL) S

Effective from 2026-01-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 3171)

Duration: 1:07, non-stop
Boeing 717 (717)

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Parallax here -

This flight number is listed as serving the following routes:

Huntsville (HSV) - Atlanta (ATL)
Kansas City (MCI) - Boston Logan (BOS)

All KLM flights

Feedback - Disclaimer - Privacy - new_base.html - MOBILE

- CACHE: False - LANG: en - IS_EU: False