KLM flight KL 5621: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 10:20 Buffalo (BUF) 11:30 Detroit (DTW) M
KL 5621 Non-stop Boeing 717 (717) 1:10 Effective 2024-11-11 through 2024-11-22
Codeshare flight, operated by Delta Air Lines.(DL 2206)
Daily 10:20 Buffalo (BUF) 11:30 Detroit (DTW) M
KL 5621 Non-stop Boeing 717 (717) 1:10 Effective 2024-12-02 through 2024-12-18
Codeshare flight, operated by Delta Air Lines.(DL 2206)
Sat 10:20 Buffalo (BUF) 11:46 Detroit (DTW) M
KL 5621 Non-stop Boeing 717 (717) 1:26 Operates only on 2025-03-29
Codeshare flight, operated by Delta Air Lines.(DL 2206)
Daily 11:50 Buffalo (BUF) 13:15 Detroit (DTW) M
KL 5621 Non-stop Canadair CRJ 900 (CR9) 1:25 Effective 2024-12-19 through 2025-01-05
Codeshare flight, operated by Delta Air Lines.(DL 5526)
Mon,Wed,Sat,Sun 11:57 Buffalo (BUF) 13:15 Detroit (DTW) M
KL 5621 Non-stop Canadair CRJ 900 (CR9) 1:18 Effective 2024-11-23 through 2024-12-01
Codeshare flight, operated by Delta Air Lines.(DL 3670)
Thu,Fri 12:00 Buffalo (BUF) 13:23 Detroit (DTW) M
KL 5621 Non-stop Canadair CRJ 900 (CR9) 1:23 Effective 2024-11-28 through 2024-11-29
Codeshare flight, operated by Delta Air Lines.(DL 3670)
Daily 12:01 Buffalo (BUF) 13:15 Detroit (DTW) M
KL 5621 Non-stop Canadair CRJ 900 (CR9) 1:14 Effective 2024-10-27 through 2024-11-10
Codeshare flight, operated by Delta Air Lines.(DL 3682)
Mon-Fri,Sun 12:49 Albany (ALB) 15:26 Atlanta (ATL) S
KL 5621 Non-stop Airbus A320 (320) 2:37 Effective 2024-10-07 through 2024-10-25
Codeshare flight, operated by Delta Air Lines.(DL 1137)
Mon-Fri,Sun 12:53 Albany (ALB) 15:24 Atlanta (ATL) S
KL 5621 Non-stop Airbus A320 (320) 2:31 Effective 2024-09-09 through 2024-10-06
Codeshare flight, operated by Delta Air Lines.(DL 1137)
Mon,Thu,Fri 13:10 Albany (ALB) 15:44 Atlanta (ATL) S
KL 5621 Non-stop Airbus A320 (320) 2:34 Valid until 2024-09-02
Codeshare flight, operated by Delta Air Lines.(DL 1137)
Sun 13:10 Albany (ALB) 15:44 Atlanta (ATL) S
KL 5621 Non-stop Airbus A320 (320) 2:34 Operates only on 2024-09-08
Codeshare flight, operated by Delta Air Lines.(DL 1137)
Mon-Wed,Sat,Sun 14:21 Albany (ALB) 16:57 Atlanta (ATL) S
KL 5621 Non-stop Airbus A320 (320) 2:36 Valid until 2024-09-01
Codeshare flight, operated by Delta Air Lines.(DL 1137)
Tue-Sat 14:21 Albany (ALB) 16:57 Atlanta (ATL) S
KL 5621 Non-stop Airbus A320 (320) 2:36 Effective 2024-09-03 through 2024-09-07
Codeshare flight, operated by Delta Air Lines.(DL 1137)
Sat 14:32 Albany (ALB) 17:03 Atlanta (ATL) S
KL 5621 Non-stop Airbus A320 (320) 2:31 Effective 2024-09-14 through 2024-10-05
Codeshare flight, operated by Delta Air Lines.(DL 1137)
Sat 14:32 Albany (ALB) 17:09 Atlanta (ATL) S
KL 5621 Non-stop Airbus A320 (320) 2:37 Effective 2024-10-12 through 2024-10-19
Codeshare flight, operated by Delta Air Lines.(DL 1137)
Sat 15:00 Albany (ALB) 17:38 Atlanta (ATL) S
KL 5621 Non-stop Airbus A320 (320) 2:38 Operates only on 2024-10-26
Codeshare flight, operated by Delta Air Lines.(DL 1137)
Wed,Fri,Sun 15:00 Mexico City Benito Juarez (MEX) 2 19:27 Salt Lake City (SLC)
KL 5621 Non-stop Airbus A319 (319) 4:27 Effective 2025-04-16 through 2025-05-04
Codeshare flight, operated by Delta Air Lines.(DL 642)
Wed,Fri,Sun 15:05 Mexico City Benito Juarez (MEX) 2 19:40 Salt Lake City (SLC)
KL 5621 Non-stop Airbus A319 (319) 4:35 Effective 2025-03-30 through 2025-04-13
Codeshare flight, operated by Delta Air Lines.(DL 642)
Wed,Fri,Sun 15:10 Mexico City Benito Juarez (MEX) 2 19:37 Salt Lake City (SLC)
KL 5621 Non-stop Airbus A319 (319) 4:27 Effective 2025-05-07 through 2025-06-06
Codeshare flight, operated by Delta Air Lines.(DL 642)
Wed,Fri,Sun 15:10 Mexico City Benito Juarez (MEX) 2 19:27 Salt Lake City (SLC)
KL 5621 Non-stop Airbus A319 (319) 4:17 Effective from 2025-06-08
Codeshare flight, operated by Delta Air Lines.(DL 642)
This flight number is listed as serving the following routes:


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KLM flight KL 5621: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
KLM KL5621
10:20
Buffalo (BUF)

11:30
Detroit (DTW) M
Effective 2024-11-11 through 2024-11-22
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2206)
Duration: 1:10, non-stop
Boeing 717 (717)
KLM KL5621
10:20
Buffalo (BUF)

11:30
Detroit (DTW) M
Effective 2024-12-02 through 2024-12-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2206)
Duration: 1:10, non-stop
Boeing 717 (717)
KLM KL5621
10:20
Buffalo (BUF)

11:46
Detroit (DTW) M
Operates only on 2025-03-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2206)
Duration: 1:26, non-stop
Boeing 717 (717)
KLM KL5621
11:50
Buffalo (BUF)

13:15
Detroit (DTW) M
Effective 2024-12-19 through 2025-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5526)
Duration: 1:25, non-stop
Canadair CRJ 900 (CR9)
KLM KL5621
11:57
Buffalo (BUF)

13:15
Detroit (DTW) M
Effective 2024-11-23 through 2024-12-01
Mon
Tue
-
Wed
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 3670)
Duration: 1:18, non-stop
Canadair CRJ 900 (CR9)
KLM KL5621
12:00
Buffalo (BUF)

13:23
Detroit (DTW) M
Effective 2024-11-28 through 2024-11-29
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 3670)
Duration: 1:23, non-stop
Canadair CRJ 900 (CR9)
KLM KL5621
12:01
Buffalo (BUF)

13:15
Detroit (DTW) M
Effective 2024-10-27 through 2024-11-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 3682)
Duration: 1:14, non-stop
Canadair CRJ 900 (CR9)
KLM KL5621
12:49
Albany (ALB)

15:26
Atlanta (ATL) S
Effective 2024-10-07 through 2024-10-25
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 1137)
Duration: 2:37, non-stop
Airbus A320 (320)
KLM KL5621
12:53
Albany (ALB)

15:24
Atlanta (ATL) S
Effective 2024-09-09 through 2024-10-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 1137)
Duration: 2:31, non-stop
Airbus A320 (320)
KLM KL5621
13:10
Albany (ALB)

15:44
Atlanta (ATL) S
Valid until 2024-09-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 1137)
Duration: 2:34, non-stop
Airbus A320 (320)
KLM KL5621
13:10
Albany (ALB)

15:44
Atlanta (ATL) S
Operates only on 2024-09-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 1137)
Duration: 2:34, non-stop
Airbus A320 (320)
KLM KL5621
14:21
Albany (ALB)

16:57
Atlanta (ATL) S
Valid until 2024-09-01
Mon
Tue
Wed
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 1137)
Duration: 2:36, non-stop
Airbus A320 (320)
KLM KL5621
14:21
Albany (ALB)

16:57
Atlanta (ATL) S
Effective 2024-09-03 through 2024-09-07
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 1137)
Duration: 2:36, non-stop
Airbus A320 (320)
KLM KL5621
14:32
Albany (ALB)

17:03
Atlanta (ATL) S
Effective 2024-09-14 through 2024-10-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 1137)
Duration: 2:31, non-stop
Airbus A320 (320)
KLM KL5621
14:32
Albany (ALB)

17:09
Atlanta (ATL) S
Effective 2024-10-12 through 2024-10-19
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 1137)
Duration: 2:37, non-stop
Airbus A320 (320)
KLM KL5621
15:00
Albany (ALB)

17:38
Atlanta (ATL) S
Operates only on 2024-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 1137)
Duration: 2:38, non-stop
Airbus A320 (320)
KLM KL5621
15:00
Mexico City Benito Juarez (MEX) 2

19:27
Salt Lake City (SLC)
Effective 2025-04-16 through 2025-05-04
Mon
-
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 642)
Duration: 4:27, non-stop
Airbus A319 (319)
KLM KL5621
15:05
Mexico City Benito Juarez (MEX) 2

19:40
Salt Lake City (SLC)
Effective 2025-03-30 through 2025-04-13
Mon
-
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 642)
Duration: 4:35, non-stop
Airbus A319 (319)
KLM KL5621
15:10
Mexico City Benito Juarez (MEX) 2

19:37
Salt Lake City (SLC)
Effective 2025-05-07 through 2025-06-06
Mon
-
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 642)
Duration: 4:27, non-stop
Airbus A319 (319)
KLM KL5621
15:10
Mexico City Benito Juarez (MEX) 2

19:27
Salt Lake City (SLC)
Effective from 2025-06-08
Mon
-
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 642)
Duration: 4:17, non-stop
Airbus A319 (319)
This flight number is listed as serving the following routes:
  • Albany (ALB) - Atlanta (ATL)
  • Buffalo (BUF) - Detroit (DTW)
  • Mexico City Benito Juarez (MEX) - Salt Lake City (SLC)
All KLM flights
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