KLM flight KL 6721: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 15:40 Midway, Chicago (MDW) 18:44 Atlanta (ATL) S
KL 6721 Non-stop Boeing 717 (717) 2:04 Effective 2025-07-07 through 2025-08-15
Codeshare flight, operated by Delta Air Lines.(DL 2307)
Mon-Fri,Sun 15:40 Midway, Chicago (MDW) 18:44 Atlanta (ATL) S
KL 6721 Non-stop Boeing 717 (717) 2:04 Effective 2025-08-17 through 2025-08-29
Codeshare flight, operated by Delta Air Lines.(DL 2307)
Mon-Fri,Sun 15:40 Midway, Chicago (MDW) 18:44 Atlanta (ATL) S
KL 6721 Non-stop Boeing 717 (717) 2:04 Effective 2025-09-01 through 2025-09-07
Codeshare flight, operated by Delta Air Lines.(DL 2307)
Daily 15:40 Midway, Chicago (MDW) 18:38 Atlanta (ATL) S
KL 6721 Non-stop Boeing 717 (717) 1:58 Effective 2025-09-08 through 2025-10-25
Codeshare flight, operated by Delta Air Lines.(DL 2307)
Sat 16:00 Midway, Chicago (MDW) 18:55 Atlanta (ATL) S
KL 6721 Non-stop Boeing 717 (717) 1:55 Valid until 2025-05-03
Codeshare flight, operated by Delta Air Lines.(DL 2307)
Daily 16:15 Midway, Chicago (MDW) 19:14 Atlanta (ATL) S
KL 6721 Non-stop Boeing 717 (717) 1:59 Effective 2025-05-07 through 2025-05-19
Codeshare flight, operated by Delta Air Lines.(DL 2307)
Daily 16:15 Midway, Chicago (MDW) 19:13 Atlanta (ATL) S
KL 6721 Non-stop Airbus A319 (319) 1:58 Effective 2025-05-20 through 2025-06-07
Codeshare flight, operated by Delta Air Lines.(DL 2307)
Sat 16:25 Midway, Chicago (MDW) 19:29 Atlanta (ATL) S
KL 6721 Non-stop Boeing 717 (717) 2:04 Effective 2025-08-16 through 2025-08-30
Codeshare flight, operated by Delta Air Lines.(DL 2307)
Sat,Sun 16:25 Midway, Chicago (MDW) 19:29 Atlanta (ATL) S
KL 6721 Non-stop Boeing 717 (717) 2:04 Effective 2025-08-31 through 2025-09-06
Codeshare flight, operated by Delta Air Lines.(DL 2307)
Mon-Fri,Sun 16:59 Midway, Chicago (MDW) 19:55 Atlanta (ATL) S
KL 6721 Non-stop Boeing 717 (717) 1:56 Valid until 2025-05-06
Codeshare flight, operated by Delta Air Lines.(DL 2307)
Daily 20:00 Detroit (DTW) M 21:49 Charlotte (CLT)
KL 6721 Non-stop Boeing 717 (717) 1:49 Effective 2025-10-26 through 2025-12-19
Codeshare flight, operated by Delta Air Lines.(DL 2352)
Daily 20:00 Detroit (DTW) M 21:50 Charlotte (CLT)
KL 6721 Non-stop Boeing 717 (717) 1:50 Effective from 2026-01-06
Codeshare flight, operated by Delta Air Lines.(DL 2352)
Daily 21:42 Detroit (DTW) M 23:29 Charlotte (CLT)
KL 6721 Non-stop Boeing 717 (717) 1:47 Effective 2025-12-20 through 2026-01-05
Codeshare flight, operated by Delta Air Lines.(DL 2352)
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This flight number is listed as serving the following routes:
KLM flight KL 6721: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:

KLM KL6721
Effective 2025-07-07 through 2025-08-15
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2307)
Duration: 2:04, non-stop
Boeing 717 (717)

KLM KL6721
Effective 2025-08-17 through 2025-08-29
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2307)
Duration: 2:04, non-stop
Boeing 717 (717)

KLM KL6721
Effective 2025-09-01 through 2025-09-07
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2307)
Duration: 2:04, non-stop
Boeing 717 (717)

KLM KL6721
Effective 2025-09-08 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2307)
Duration: 1:58, non-stop
Boeing 717 (717)

KLM KL6721
Valid until 2025-05-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2307)
Duration: 1:55, non-stop
Boeing 717 (717)

KLM KL6721
Effective 2025-05-07 through 2025-05-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2307)
Duration: 1:59, non-stop
Boeing 717 (717)

KLM KL6721
Effective 2025-05-20 through 2025-06-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2307)
Duration: 1:58, non-stop
Airbus A319 (319)

KLM KL6721
Effective 2025-08-16 through 2025-08-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2307)
Duration: 2:04, non-stop
Boeing 717 (717)

KLM KL6721
Effective 2025-08-31 through 2025-09-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2307)
Duration: 2:04, non-stop
Boeing 717 (717)

KLM KL6721
Valid until 2025-05-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2307)
Duration: 1:56, non-stop
Boeing 717 (717)

KLM KL6721
Effective 2025-10-26 through 2025-12-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2352)
Duration: 1:49, non-stop
Boeing 717 (717)

KLM KL6721
Effective from 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2352)
Duration: 1:50, non-stop
Boeing 717 (717)

KLM KL6721
Effective 2025-12-20 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2352)
Duration: 1:47, non-stop
Boeing 717 (717)
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This flight number is listed as serving the following routes:
  • Detroit (DTW) - Charlotte (CLT)
  • Midway, Chicago (MDW) - Atlanta (ATL)