KLM
flight
KL 6431:
Multiple routes
Ad mobi flat here (320x100px) 6074960173 M FlightWNum Top Flat
FLIGHT SCHEDULE
Direct Codeshare Flights:
KLM KL6431
Effective 2026-03-29 through 2026-04-12
Mon
-
-
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 862)
Duration: 2:33, non-stop Airbus A321 (321)
Direct Codeshare Flights:
KLM KL6431
Effective 2026-04-13 through 2026-05-10
Mon
Tue
Wed
Thu
-
-
Fri
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 350)
Duration: 2:39, non-stop Airbus A321 (321)
Direct Codeshare Flights:
KLM KL6431
Effective 2026-05-12 through 2026-05-22
Mon
-
-
Tue
Wed
Thu
-
-
Fri
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 350)
Duration: 2:39, non-stop Airbus A321 (321)
Direct Codeshare Flights:
KLM KL6431
Effective 2026-05-26 through 2026-07-05
Mon
-
-
Tue
Wed
Thu
-
-
Fri
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 350)
Duration: 2:39, non-stop Airbus A321 (321)
Direct Codeshare Flights:
KLM KL6431
Effective 2026-07-07 through 2026-10-04
Mon
-
-
Tue
Wed
Thu
-
-
Fri
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 350)
Duration: 2:42, non-stop Airbus A321 (321)
Direct Codeshare Flights:
KLM KL6431
Effective 2026-10-06 through 2026-10-20
Mon
-
-
Tue
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 350)
Duration: 2:33, non-stop Airbus A321 (321)
Direct Codeshare Flights:
KLM KL6431
Valid until 2026-01-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 4124)
Duration: 1:16, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
KLM KL6431
Effective 2026-04-16 through 2026-05-07
Mon
-
-
Tue
-
-
Wed
-
-
Thu
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 726)
Duration: 2:42, non-stop Airbus A321 (321)
Direct Codeshare Flights:
KLM KL6431
Effective 2026-05-09 through 2026-07-04
Mon
-
-
Tue
-
-
Wed
-
-
Thu
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 726)
Duration: 2:42, non-stop Airbus A321 (321)
Direct Codeshare Flights:
KLM KL6431
Effective 2026-07-09 through 2026-10-03
Mon
-
-
Tue
-
-
Wed
-
-
Thu
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 726)
Duration: 2:45, non-stop Airbus A321 (321)
Direct Codeshare Flights:
KLM KL6431
Effective 2026-01-06 through 2026-01-16
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 4124)
Duration: 1:12, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
KLM KL6431
Effective 2026-01-19 through 2026-02-06
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 4124)
Duration: 1:12, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
KLM KL6431
Effective 2026-02-09 through 2026-02-11
Mon
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 4124)
Duration: 1:12, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
KLM KL6431
Effective 2026-02-12 through 2026-02-20
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 4124)
Duration: 1:10, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
KLM KL6431
Effective 2026-02-22 through 2026-03-06
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 4124)
Duration: 1:10, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
KLM KL6431
Effective 2026-03-08 through 2026-03-14
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 4124)
Duration: 1:14, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
KLM KL6431
Effective 2026-03-15 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 4124)
Duration: 1:15, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
KLM KL6431
Effective 2026-03-30 through 2026-04-06
Mon
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 518)
Duration: 2:34, non-stop Airbus A321 (321)
Direct Codeshare Flights:
KLM KL6431
Effective 2026-10-07 through 2026-10-24
Mon
Tue
-
-
Wed
Thu
-
-
Fri
Sat
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 518)
Duration: 2:36, non-stop Airbus A321 (321)
Direct Codeshare Flights:
KLM KL6431
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 2297)
Duration: 3:29, non-stop Airbus A321 (321)
Direct Codeshare Flights:
KLM KL6431
Operates only on 2026-01-10
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 3855)
Duration: 1:14, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
KLM KL6431
Effective 2026-01-24 through 2026-02-07
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 3855)
Duration: 1:14, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
KLM KL6431
Operates only on 2026-02-21
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 3855)
Duration: 1:15, non-stop Embraer EMB 175 (E7W)
Ad mobi box here (300x250px) 8888825773 M FlightWNum Bottom Box
Parallax here -
This flight number is listed as serving the following routes:
- Atlanta (ATL) - Boston Logan (BOS)
- Minneapolis/Saint Paul (MSP) - Phoenix Sky Harbor (PHX)
- Seattle-Tacoma (SEA) - Eugene (EUG)