KLM flight KL 6403: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Sun 09:29 Atlanta (ATL) S 11:27 Santa Ana (SNA)
KL 6403 Non-stop Boeing 757-200 (75W) 4:58 Operates only on 2026-03-29
Codeshare flight, operated by Delta Air Lines.(DL 329)
Mon-Fri,Sun 11:55 Santa Ana (SNA) 18:59 Atlanta (ATL) S
KL 6403 Non-stop Boeing 757-200 (75W) 4:04 Effective 2026-03-30 through 2026-04-12
Codeshare flight, operated by Delta Air Lines.(DL 1020)
Daily 11:55 Santa Ana (SNA) 19:15 Atlanta (ATL) S
KL 6403 Non-stop Boeing 757-200 (75W) 4:20 Effective 2026-04-13 through 2026-05-07
Codeshare flight, operated by Delta Air Lines.(DL 329)
Mon-Thu,Sat 11:55 Santa Ana (SNA) 19:15 Atlanta (ATL) S
KL 6403 Non-stop Boeing 757-200 (75W) 4:20 Effective 2026-05-09 through 2026-07-06
Codeshare flight, operated by Delta Air Lines.(DL 329)
Mon-Thu,Sat 11:55 Santa Ana (SNA) 19:25 Atlanta (ATL) S
KL 6403 Non-stop Boeing 757-200 (75W) 4:30 Effective 2026-07-07 through 2026-10-05
Codeshare flight, operated by Delta Air Lines.(DL 329)
Mon-Thu,Sat 11:55 Santa Ana (SNA) 19:09 Atlanta (ATL) S
KL 6403 Non-stop Boeing 757-200 (75W) 4:14 Effective 2026-10-06 through 2026-10-24
Codeshare flight, operated by Delta Air Lines.(DL 329)
Sat 12:40 Santa Ana (SNA) 19:44 Atlanta (ATL) S
KL 6403 Non-stop Boeing 757-200 (75W) 4:04 Effective 2026-04-04 through 2026-04-11
Codeshare flight, operated by Delta Air Lines.(DL 329)
Fri,Sun 14:29 Santa Ana (SNA) 21:50 Atlanta (ATL) S
KL 6403 Non-stop Boeing 757-200 (75W) 4:21 Effective 2026-05-08 through 2026-07-05
Codeshare flight, operated by Delta Air Lines.(DL 2012)
Fri,Sun 14:29 Santa Ana (SNA) 22:00 Atlanta (ATL) S
KL 6403 Non-stop Boeing 757-200 (75W) 4:31 Effective 2026-07-10 through 2026-10-04
Codeshare flight, operated by Delta Air Lines.(DL 2012)
Daily 16:15 Wausau (CWA) 17:27 Minneapolis/Saint Paul (MSP) 1
KL 6403 Non-stop Canadair CRJ 900 (CR9) 1:12 Effective from 2026-10-25
Codeshare flight, operated by Delta Air Lines.(DL 4982)
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This flight number is listed as serving the following routes:


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KLM flight KL 6403: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
KLM KL6403
09:29
Atlanta (ATL) S

11:27
Santa Ana (SNA)
Operates only on 2026-03-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 329)
Duration: 4:58, non-stop
Boeing 757-200 (75W)
Direct Codeshare Flights:
KLM KL6403
11:55
Santa Ana (SNA)

18:59
Atlanta (ATL) S
Effective 2026-03-30 through 2026-04-12
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 1020)
Duration: 4:04, non-stop
Boeing 757-200 (75W)
Direct Codeshare Flights:
KLM KL6403
11:55
Santa Ana (SNA)

19:15
Atlanta (ATL) S
Effective 2026-04-13 through 2026-05-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 329)
Duration: 4:20, non-stop
Boeing 757-200 (75W)
Direct Codeshare Flights:
KLM KL6403
11:55
Santa Ana (SNA)

19:15
Atlanta (ATL) S
Effective 2026-05-09 through 2026-07-06
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 329)
Duration: 4:20, non-stop
Boeing 757-200 (75W)
Direct Codeshare Flights:
KLM KL6403
11:55
Santa Ana (SNA)

19:25
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 329)
Duration: 4:30, non-stop
Boeing 757-200 (75W)
Direct Codeshare Flights:
KLM KL6403
11:55
Santa Ana (SNA)

19:09
Atlanta (ATL) S
Effective 2026-10-06 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 329)
Duration: 4:14, non-stop
Boeing 757-200 (75W)
Direct Codeshare Flights:
KLM KL6403
12:40
Santa Ana (SNA)

19:44
Atlanta (ATL) S
Effective 2026-04-04 through 2026-04-11
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 329)
Duration: 4:04, non-stop
Boeing 757-200 (75W)
Direct Codeshare Flights:
KLM KL6403
14:29
Santa Ana (SNA)

21:50
Atlanta (ATL) S
Effective 2026-05-08 through 2026-07-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2012)
Duration: 4:21, non-stop
Boeing 757-200 (75W)
Direct Codeshare Flights:
KLM KL6403
14:29
Santa Ana (SNA)

22:00
Atlanta (ATL) S
Effective 2026-07-10 through 2026-10-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2012)
Duration: 4:31, non-stop
Boeing 757-200 (75W)
Direct Codeshare Flights:
KLM KL6403
16:15
Wausau (CWA)

17:27
Minneapolis/Saint Paul (MSP) 1
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4982)
Duration: 1:12, non-stop
Canadair CRJ 900 (CR9)
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This flight number is listed as serving the following routes:
  • Santa Ana (SNA) - Atlanta (ATL)
  • Wausau (CWA) - Minneapolis/Saint Paul (MSP)
All KLM flights
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