KLM flight KL 6239: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon-Fri,Sun 09:43 Kansas City (MCI) 13:48 Boston Logan (BOS) A
KL 6239 Non-stop Embraer EMB 175 (E75) 3:05 Effective 2026-03-29 through 2026-04-12
Codeshare flight, operated by Delta Air Lines.(DL 5638)
Daily 10:10 Kansas City (MCI) 14:21 Boston Logan (BOS) A
KL 6239 Non-stop Airbus A220-100 (221) 3:11 Effective 2026-04-13 through 2026-10-05
Codeshare flight, operated by Delta Air Lines.(DL 502)
Daily 10:10 Kansas City (MCI) 14:09 Boston Logan (BOS) A
KL 6239 Non-stop Airbus A220-100 (221) 2:59 Effective 2026-10-06 through 2026-10-23
Codeshare flight, operated by Delta Air Lines.(DL 675)
Daily 22:20 New York John F. Kennedy (JFK) 4 23:58 Buffalo (BUF)
KL 6239 Non-stop Canadair CRJ 900 (CR9) 1:38 Effective 2026-02-12 through 2026-03-07
Codeshare flight, operated by Delta Air Lines.(DL 5264)
Daily 22:30 New York John F. Kennedy (JFK) 4 00:16 Buffalo (BUF)
KL 6239 Non-stop Canadair CRJ 900 (CR9) 1:46 Effective 2026-01-05 through 2026-01-12
Codeshare flight, operated by Delta Air Lines.(DL 5264)
The flight arrives 1 day after departure.
Daily 22:30 New York John F. Kennedy (JFK) 4 00:16 Buffalo (BUF)
KL 6239 Non-stop Canadair CRJ 900 (CR9) 1:46 Effective 2026-01-14 through 2026-02-11
Codeshare flight, operated by Delta Air Lines.(DL 5264)
The flight arrives 1 day after departure.
Daily 22:30 New York John F. Kennedy (JFK) 4 00:14 Buffalo (BUF)
KL 6239 Non-stop Canadair CRJ 900 (CR9) 1:44 Effective 2026-03-08 through 2026-03-28
Codeshare flight, operated by Delta Air Lines.(DL 5264)
The flight arrives 1 day after departure.
Tue 22:50 New York John F. Kennedy (JFK) 4 00:36 Buffalo (BUF)
KL 6239 Non-stop Canadair CRJ 900 (CR9) 1:46 Operates only on 2026-01-13
Codeshare flight, operated by Delta Air Lines.(DL 5264)
The flight arrives 1 day after departure.
This flight number is listed as serving the following routes:


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KLM flight KL 6239: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
KLM KL6239
09:43
Kansas City (MCI)

13:48
Boston Logan (BOS) A
Effective 2026-03-29 through 2026-04-12
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5638)
Duration: 3:05, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
KLM KL6239
10:10
Kansas City (MCI)

14:21
Boston Logan (BOS) A
Effective 2026-04-13 through 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 502)
Duration: 3:11, non-stop
Airbus A220-100 (221)
Direct Codeshare Flights:
KLM KL6239
10:10
Kansas City (MCI)

14:09
Boston Logan (BOS) A
Effective 2026-10-06 through 2026-10-23
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 675)
Duration: 2:59, non-stop
Airbus A220-100 (221)
Direct Codeshare Flights:
KLM KL6239
22:20
New York John F. Kennedy (JFK) 4

23:58
Buffalo (BUF)
Effective 2026-02-12 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5264)
Duration: 1:38, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
KLM KL6239
22:30
New York John F. Kennedy (JFK) 4

00:16(+1)
Buffalo (BUF)
Effective 2026-01-05 through 2026-01-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5264)
Duration: 1:46, non-stop
Canadair CRJ 900 (CR9)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
KLM KL6239
22:30
New York John F. Kennedy (JFK) 4

00:16(+1)
Buffalo (BUF)
Effective 2026-01-14 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5264)
Duration: 1:46, non-stop
Canadair CRJ 900 (CR9)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
KLM KL6239
22:30
New York John F. Kennedy (JFK) 4

00:14(+1)
Buffalo (BUF)
Effective 2026-03-08 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5264)
Duration: 1:44, non-stop
Canadair CRJ 900 (CR9)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
KLM KL6239
22:50
New York John F. Kennedy (JFK) 4

00:36(+1)
Buffalo (BUF)
Operates only on 2026-01-13
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 5264)
Duration: 1:46, non-stop
Canadair CRJ 900 (CR9)
The flight arrives 1 day after departure.
This flight number is listed as serving the following routes:
  • Kansas City (MCI) - Boston Logan (BOS)
  • New York John F. Kennedy (JFK) - Buffalo (BUF)
All KLM flights
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