KLM flight KL 5631: Multiple routes

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon,Tue,Thu 07:40 Seattle-Tacoma (SEA) 15:39 Atlanta (ATL) S
KL 5631 Non-stop Boeing 757-300 (753) 4:59 Effective 2025-06-23 through 2025-06-26
Codeshare flight, operated by Delta Air Lines.(DL 562)
Sat 11:50 Seattle-Tacoma (SEA) 19:44 Atlanta (ATL) S
KL 5631 Non-stop Boeing 737-900 (739) 4:54 Operates only on 2025-10-25
Codeshare flight, operated by Delta Air Lines.(DL 554)
Tue,Wed 13:35 Seattle-Tacoma (SEA) 21:32 Atlanta (ATL) S
KL 5631 Non-stop Boeing 757-300 (753) 4:57 Effective 2025-06-10 through 2025-06-18
Codeshare flight, operated by Delta Air Lines.(DL 542)
Wed,Sat,Sun 13:35 Seattle-Tacoma (SEA) 21:32 Atlanta (ATL) S
KL 5631 Non-stop Boeing 757-300 (753) 4:57 Effective 2025-06-21 through 2025-06-25
Codeshare flight, operated by Delta Air Lines.(DL 542)
Tue-Thu 13:35 Seattle-Tacoma (SEA) 21:32 Atlanta (ATL) S
KL 5631 Non-stop Boeing 757-300 (753) 4:57 Effective 2025-07-01 through 2025-07-03
Codeshare flight, operated by Delta Air Lines.(DL 542)
Thu 13:45 Seattle-Tacoma (SEA) 21:50 Atlanta (ATL) S
KL 5631 Non-stop Boeing 757-300 (753) 5:05 Effective 2025-07-10 through 2025-08-21
Codeshare flight, operated by Delta Air Lines.(DL 542)
Tue 13:45 Seattle-Tacoma (SEA) 21:50 Atlanta (ATL) S
KL 5631 Non-stop Boeing 757-300 (753) 5:05 Operates only on 2025-09-02
Codeshare flight, operated by Delta Air Lines.(DL 542)
Tue 13:45 Seattle-Tacoma (SEA) 21:42 Atlanta (ATL) S
KL 5631 Non-stop Boeing 757-300 (753) 4:57 Effective 2025-09-09 through 2025-09-30
Codeshare flight, operated by Delta Air Lines.(DL 542)
Mon-Thu,Sat 13:45 Seattle-Tacoma (SEA) 21:42 Atlanta (ATL) S
KL 5631 Non-stop Boeing 757-300 (753) 4:57 Effective 2025-10-06 through 2025-10-23
Codeshare flight, operated by Delta Air Lines.(DL 542)
Daily 15:15 Minneapolis/Saint Paul (MSP) 1 16:52 Bismarck (BIS)
KL 5631 Non-stop Embraer EMB 175 (E7W) 1:37 Effective 2025-11-02 through 2025-12-19
Codeshare flight, operated by Delta Air Lines.(DL 4071)
Daily 15:15 Minneapolis/Saint Paul (MSP) 1 16:53 Bismarck (BIS)
KL 5631 Non-stop Embraer EMB 175 (E7W) 1:38 Effective from 2026-01-06
Codeshare flight, operated by Delta Air Lines.(DL 4071)
Daily 15:16 Minneapolis/Saint Paul (MSP) 1 16:53 Bismarck (BIS)
KL 5631 Non-stop Embraer EMB 175 (E7W) 1:37 Effective 2025-12-20 through 2026-01-05
Codeshare flight, operated by Delta Air Lines.(DL 4071)
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This flight number is listed as serving the following routes:


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KLM flight KL 5631: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
KLM KL5631
07:40
Seattle-Tacoma (SEA)

15:39
Atlanta (ATL) S
Effective 2025-06-23 through 2025-06-26
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 562)
Duration: 4:59, non-stop
Boeing 757-300 (753)
KLM KL5631
11:50
Seattle-Tacoma (SEA)

19:44
Atlanta (ATL) S
Operates only on 2025-10-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 554)
Duration: 4:54, non-stop
Boeing 737-900 (739)
KLM KL5631
13:35
Seattle-Tacoma (SEA)

21:32
Atlanta (ATL) S
Effective 2025-06-10 through 2025-06-18
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 542)
Duration: 4:57, non-stop
Boeing 757-300 (753)
KLM KL5631
13:35
Seattle-Tacoma (SEA)

21:32
Atlanta (ATL) S
Effective 2025-06-21 through 2025-06-25
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 542)
Duration: 4:57, non-stop
Boeing 757-300 (753)
KLM KL5631
13:35
Seattle-Tacoma (SEA)

21:32
Atlanta (ATL) S
Effective 2025-07-01 through 2025-07-03
Mon
-
Tue
Wed
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 542)
Duration: 4:57, non-stop
Boeing 757-300 (753)
KLM KL5631
13:45
Seattle-Tacoma (SEA)

21:50
Atlanta (ATL) S
Effective 2025-07-10 through 2025-08-21
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 542)
Duration: 5:05, non-stop
Boeing 757-300 (753)
KLM KL5631
13:45
Seattle-Tacoma (SEA)

21:50
Atlanta (ATL) S
Operates only on 2025-09-02
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 542)
Duration: 5:05, non-stop
Boeing 757-300 (753)
KLM KL5631
13:45
Seattle-Tacoma (SEA)

21:42
Atlanta (ATL) S
Effective 2025-09-09 through 2025-09-30
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 542)
Duration: 4:57, non-stop
Boeing 757-300 (753)
KLM KL5631
13:45
Seattle-Tacoma (SEA)

21:42
Atlanta (ATL) S
Effective 2025-10-06 through 2025-10-23
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 542)
Duration: 4:57, non-stop
Boeing 757-300 (753)
KLM KL5631
15:15
Minneapolis/Saint Paul (MSP) 1

16:52
Bismarck (BIS)
Effective 2025-11-02 through 2025-12-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4071)
Duration: 1:37, non-stop
Embraer EMB 175 (E7W)
KLM KL5631
15:15
Minneapolis/Saint Paul (MSP) 1

16:53
Bismarck (BIS)
Effective from 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4071)
Duration: 1:38, non-stop
Embraer EMB 175 (E7W)
KLM KL5631
15:16
Minneapolis/Saint Paul (MSP) 1

16:53
Bismarck (BIS)
Effective 2025-12-20 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4071)
Duration: 1:37, non-stop
Embraer EMB 175 (E7W)
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This flight number is listed as serving the following routes:
  • Minneapolis/Saint Paul (MSP) - Bismarck (BIS)
  • Seattle-Tacoma (SEA) - Atlanta (ATL)
All KLM flights
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