KLM
flight
KL 6921:
Multiple routes
Ad mobi flat here (320x100px) 6074960173 M FlightWNum Top Flat
FLIGHT SCHEDULE
Direct Codeshare Flights:
KLM KL6921
Effective 2026-10-08 through 2026-10-22
Mon
-
-
Tue
-
-
Wed
-
-
Thu
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 3091)
Duration: 1:16, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
KLM KL6921
Operates only on 2026-01-04
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 5593)
Duration: 2:26, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-04-13 through 2026-07-06
Mon
Tue
-
-
Wed
-
-
Thu
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 3107)
Duration: 1:16, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-07-09 through 2026-10-05
Mon
Tue
-
-
Wed
-
-
Thu
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 3107)
Duration: 1:13, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
KLM KL6921
Valid until 2026-01-03
Mon
Tue
Wed
-
-
Thu
-
-
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 5593)
Duration: 2:28, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-03-30 through 2026-04-09
Mon
Tue
-
-
Wed
-
-
Thu
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 3107)
Duration: 1:10, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-01-05 through 2026-01-10
Mon
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 5859)
Duration: 2:29, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-01-17 through 2026-01-24
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 5859)
Duration: 2:29, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-01-31 through 2026-02-07
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 5859)
Duration: 2:29, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
KLM KL6921
Operates only on 2026-02-08
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 5859)
Duration: 2:29, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-02-14 through 2026-03-07
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 5612)
Duration: 2:26, non-stop Embraer EMB 170 / EMB 175 (E70)
Direct Codeshare Flights:
KLM KL6921
Operates only on 2026-02-15
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 5612)
Duration: 2:26, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-03-08 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 5606)
Duration: 2:28, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-03-14 through 2026-03-21
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 720)
Duration: 2:24, non-stop Airbus A220-300 (223)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-02-12 through 2026-02-20
Mon
Tue
Wed
-
-
Thu
Fri
Sat
-
-
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 5594)
Duration: 2:26, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-02-22 through 2026-03-06
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 5594)
Duration: 2:26, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-01-19 through 2026-02-06
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 5606)
Duration: 2:29, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-02-09 through 2026-02-11
Mon
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 5606)
Duration: 2:29, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-03-29 through 2026-04-12
Mon
-
-
Tue
Wed
Thu
-
-
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 2174)
Duration: 1:09, non-stop Boeing 717 (717)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-01-07 through 2026-01-16
Mon
Tue
-
-
Wed
Thu
-
-
Fri
Sat
-
-
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 5607)
Duration: 2:21, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-04-14 through 2026-04-25
Mon
-
-
Tue
Wed
Thu
-
-
Fri
Sat
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 2174)
Duration: 1:21, non-stop Boeing 717 (717)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-04-26 through 2026-05-02
Mon
-
-
Tue
Wed
Thu
-
-
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 2174)
Duration: 1:21, non-stop Boeing 717 (717)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-05-05 through 2026-05-06
Mon
-
-
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 2174)
Duration: 1:21, non-stop Boeing 717 (717)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-05-08 through 2026-05-23
Mon
-
-
Tue
Wed
Thu
-
-
Fri
Sat
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 2174)
Duration: 1:21, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-05-24 through 2026-05-30
Mon
-
-
Tue
Wed
Thu
-
-
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 2174)
Duration: 1:21, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-06-02 through 2026-07-04
Mon
-
-
Tue
Wed
Thu
-
-
Fri
Sat
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 2174)
Duration: 1:21, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
KLM KL6921
Operates only on 2026-07-05
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 2174)
Duration: 1:21, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-07-07 through 2026-10-04
Mon
-
-
Tue
Wed
Thu
-
-
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 2174)
Duration: 1:20, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-10-06 through 2026-10-23
Mon
-
-
Tue
Wed
Thu
-
-
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 2174)
Duration: 1:19, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
KLM KL6921
Effective 2026-03-31 through 2026-04-11
Mon
-
-
Tue
Wed
Thu
-
-
Fri
Sat
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 2174)
Duration: 1:21, non-stop Boeing 717 (717)
Direct Codeshare Flights:
KLM KL6921
Effective from 2026-10-27
Mon
-
-
Tue
Wed
-
-
Thu
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 1355)
Duration: 2:42, non-stop Airbus A321 (321)
Ad mobi box here (300x250px) 8888825773 M FlightWNum Bottom Box
Parallax here -
This flight number is listed as serving the following routes:
- Charleston (CHS) - Atlanta (ATL)
- Chicago O'Hare (ORD) - Boston Logan (BOS)
- Detroit (DTW) - Tampa (TPA)