KLM flight KL 7273: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Sat 14:00 Atlanta (ATL) S 16:05 Buffalo (BUF)
KL 7273 Non-stop Airbus A321 (321) 2:05 Effective 2025-08-16 through 2025-08-30
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Sat,Sun 14:00 Atlanta (ATL) S 16:05 Buffalo (BUF)
KL 7273 Non-stop Airbus A321 (321) 2:05 Effective 2025-08-31 through 2025-09-06
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Mon-Fri,Sun 15:29 Atlanta (ATL) S 17:28 Buffalo (BUF)
KL 7273 Non-stop Boeing 757 (757) 1:59 Effective 2025-05-07 through 2025-05-19
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Mon-Fri 15:29 Atlanta (ATL) S 17:30 Buffalo (BUF)
KL 7273 Non-stop Airbus A321 (321) 2:01 Effective 2025-05-20 through 2025-05-30
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Mon-Fri,Sun 15:29 Atlanta (ATL) S 17:30 Buffalo (BUF)
KL 7273 Non-stop Airbus A321 (321) 2:01 Effective 2025-06-01 through 2025-06-06
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Daily 15:40 Atlanta (ATL) S 17:40 Buffalo (BUF)
KL 7273 Non-stop Boeing 737-900 (739) 2:00 Valid until 2025-05-06
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Sat 15:49 Atlanta (ATL) S 17:49 Buffalo (BUF)
KL 7273 Non-stop Boeing 757 (757) 2:00 Effective 2025-05-10 through 2025-05-17
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Sat 15:49 Atlanta (ATL) S 17:50 Buffalo (BUF)
KL 7273 Non-stop Airbus A321 (321) 2:01 Effective 2025-05-24 through 2025-06-07
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Sun 16:26 Atlanta (ATL) S 18:29 Buffalo (BUF)
KL 7273 Non-stop Airbus A321 (321) 2:03 Effective 2025-06-08 through 2025-06-22
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Sun 16:26 Atlanta (ATL) S 18:29 Buffalo (BUF)
KL 7273 Non-stop Airbus A321 (321) 2:03 Operates only on 2025-07-06
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Mon-Fri,Sun 16:30 Atlanta (ATL) S 18:35 Buffalo (BUF)
KL 7273 Non-stop Airbus A321 (321) 2:05 Effective 2025-07-07 through 2025-08-29
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Mon-Fri,Sun 16:30 Atlanta (ATL) S 18:35 Buffalo (BUF)
KL 7273 Non-stop Airbus A321 (321) 2:05 Effective 2025-09-01 through 2025-09-07
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Daily 16:30 Atlanta (ATL) S 18:32 Buffalo (BUF)
KL 7273 Non-stop Airbus A321 (321) 2:02 Effective 2025-09-08 through 2025-10-25
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Mon-Fri 16:37 Atlanta (ATL) S 18:41 Buffalo (BUF)
KL 7273 Non-stop Airbus A321 (321) 2:04 Effective 2025-06-09 through 2025-06-27
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Sat 17:10 Buffalo (BUF) 19:18 Atlanta (ATL) S
KL 7273 Non-stop Airbus A321 (321) 2:08 Effective 2025-08-16 through 2025-08-30
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Sat,Sun 17:10 Buffalo (BUF) 19:18 Atlanta (ATL) S
KL 7273 Non-stop Airbus A321 (321) 2:08 Effective 2025-08-31 through 2025-09-06
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Mon-Fri,Sun 18:35 Buffalo (BUF) 20:45 Atlanta (ATL) S
KL 7273 Non-stop Boeing 757 (757) 2:10 Effective 2025-05-07 through 2025-05-19
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Mon-Fri 18:35 Buffalo (BUF) 20:47 Atlanta (ATL) S
KL 7273 Non-stop Airbus A321 (321) 2:12 Effective 2025-05-20 through 2025-05-30
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Mon-Fri,Sun 18:35 Buffalo (BUF) 20:47 Atlanta (ATL) S
KL 7273 Non-stop Airbus A321 (321) 2:12 Effective 2025-06-01 through 2025-06-06
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Daily 18:45 Buffalo (BUF) 21:04 Atlanta (ATL) S
KL 7273 Non-stop Boeing 737-900 (739) 2:19 Valid until 2025-05-06
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Sat 18:55 Buffalo (BUF) 21:05 Atlanta (ATL) S
KL 7273 Non-stop Boeing 757 (757) 2:10 Effective 2025-05-10 through 2025-05-17
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Sat 18:55 Buffalo (BUF) 21:07 Atlanta (ATL) S
KL 7273 Non-stop Airbus A321 (321) 2:12 Effective 2025-05-24 through 2025-06-07
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Daily 19:05 New York John F. Kennedy (JFK) 4 22:51 San Francisco (SFO) 1
KL 7273 Non-stop Boeing 767 (76W) 6:46 Effective 2025-12-24 through 2026-01-03
Codeshare flight, operated by Delta Air Lines.(DL 667)
Mon-Fri,Sun 19:30 Buffalo (BUF) 21:38 Atlanta (ATL) S
KL 7273 Non-stop Airbus A321 (321) 2:08 Effective 2025-07-07 through 2025-08-29
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Mon-Fri,Sun 19:30 Buffalo (BUF) 21:38 Atlanta (ATL) S
KL 7273 Non-stop Airbus A321 (321) 2:08 Effective 2025-09-01 through 2025-09-07
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Daily 19:30 Buffalo (BUF) 21:48 Atlanta (ATL) S
KL 7273 Non-stop Airbus A321 (321) 2:18 Effective 2025-09-08 through 2025-10-25
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Sun 19:35 Buffalo (BUF) 21:49 Atlanta (ATL) S
KL 7273 Non-stop Airbus A321 (321) 2:14 Effective 2025-06-08 through 2025-06-22
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Sun 19:35 Buffalo (BUF) 21:49 Atlanta (ATL) S
KL 7273 Non-stop Airbus A321 (321) 2:14 Operates only on 2025-07-06
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Mon-Fri 19:46 Buffalo (BUF) 22:00 Atlanta (ATL) S
KL 7273 Non-stop Airbus A321 (321) 2:14 Effective 2025-06-09 through 2025-06-27
Codeshare flight, operated by Delta Air Lines.(DL 2050)
Daily 21:30 New York John F. Kennedy (JFK) 4 01:18 San Francisco (SFO) 1
KL 7273 Non-stop Boeing 757-200 (75W) 6:48 Effective 2025-11-06 through 2025-12-23
Codeshare flight, operated by Delta Air Lines.(DL 1732)
The flight arrives 1 day after departure.
Mon,Sun 21:30 New York John F. Kennedy (JFK) 4 01:18 San Francisco (SFO) 1
KL 7273 Non-stop Boeing 757-200 (75W) 6:48 Effective 2026-01-04 through 2026-01-05
Codeshare flight, operated by Delta Air Lines.(DL 1732)
The flight arrives 1 day after departure.
Daily 21:30 New York John F. Kennedy (JFK) 4 01:25 San Francisco (SFO) 1
KL 7273 Non-stop Boeing 757-200 (75W) 6:55 Effective from 2026-01-06
Codeshare flight, operated by Delta Air Lines.(DL 1732)
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:


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KLM flight KL 7273: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
KLM KL7273
14:00
Atlanta (ATL) S

16:05
Buffalo (BUF)
Effective 2025-08-16 through 2025-08-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:05, non-stop
Airbus A321 (321)
KLM KL7273
14:00
Atlanta (ATL) S

16:05
Buffalo (BUF)
Effective 2025-08-31 through 2025-09-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:05, non-stop
Airbus A321 (321)
KLM KL7273
15:29
Atlanta (ATL) S

17:28
Buffalo (BUF)
Effective 2025-05-07 through 2025-05-19
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 1:59, non-stop
Boeing 757 (757)
KLM KL7273
15:29
Atlanta (ATL) S

17:30
Buffalo (BUF)
Effective 2025-05-20 through 2025-05-30
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:01, non-stop
Airbus A321 (321)
KLM KL7273
15:29
Atlanta (ATL) S

17:30
Buffalo (BUF)
Effective 2025-06-01 through 2025-06-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:01, non-stop
Airbus A321 (321)
KLM KL7273
15:40
Atlanta (ATL) S

17:40
Buffalo (BUF)
Valid until 2025-05-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:00, non-stop
Boeing 737-900 (739)
KLM KL7273
15:49
Atlanta (ATL) S

17:49
Buffalo (BUF)
Effective 2025-05-10 through 2025-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:00, non-stop
Boeing 757 (757)
KLM KL7273
15:49
Atlanta (ATL) S

17:50
Buffalo (BUF)
Effective 2025-05-24 through 2025-06-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:01, non-stop
Airbus A321 (321)
KLM KL7273
16:26
Atlanta (ATL) S

18:29
Buffalo (BUF)
Effective 2025-06-08 through 2025-06-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:03, non-stop
Airbus A321 (321)
KLM KL7273
16:26
Atlanta (ATL) S

18:29
Buffalo (BUF)
Operates only on 2025-07-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:03, non-stop
Airbus A321 (321)
KLM KL7273
16:30
Atlanta (ATL) S

18:35
Buffalo (BUF)
Effective 2025-07-07 through 2025-08-29
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:05, non-stop
Airbus A321 (321)
KLM KL7273
16:30
Atlanta (ATL) S

18:35
Buffalo (BUF)
Effective 2025-09-01 through 2025-09-07
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:05, non-stop
Airbus A321 (321)
KLM KL7273
16:30
Atlanta (ATL) S

18:32
Buffalo (BUF)
Effective 2025-09-08 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:02, non-stop
Airbus A321 (321)
KLM KL7273
16:37
Atlanta (ATL) S

18:41
Buffalo (BUF)
Effective 2025-06-09 through 2025-06-27
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:04, non-stop
Airbus A321 (321)
KLM KL7273
17:10
Buffalo (BUF)

19:18
Atlanta (ATL) S
Effective 2025-08-16 through 2025-08-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:08, non-stop
Airbus A321 (321)
KLM KL7273
17:10
Buffalo (BUF)

19:18
Atlanta (ATL) S
Effective 2025-08-31 through 2025-09-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:08, non-stop
Airbus A321 (321)
KLM KL7273
18:35
Buffalo (BUF)

20:45
Atlanta (ATL) S
Effective 2025-05-07 through 2025-05-19
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:10, non-stop
Boeing 757 (757)
KLM KL7273
18:35
Buffalo (BUF)

20:47
Atlanta (ATL) S
Effective 2025-05-20 through 2025-05-30
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:12, non-stop
Airbus A321 (321)
KLM KL7273
18:35
Buffalo (BUF)

20:47
Atlanta (ATL) S
Effective 2025-06-01 through 2025-06-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:12, non-stop
Airbus A321 (321)
KLM KL7273
18:45
Buffalo (BUF)

21:04
Atlanta (ATL) S
Valid until 2025-05-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:19, non-stop
Boeing 737-900 (739)
KLM KL7273
18:55
Buffalo (BUF)

21:05
Atlanta (ATL) S
Effective 2025-05-10 through 2025-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:10, non-stop
Boeing 757 (757)
KLM KL7273
18:55
Buffalo (BUF)

21:07
Atlanta (ATL) S
Effective 2025-05-24 through 2025-06-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:12, non-stop
Airbus A321 (321)
KLM KL7273
19:05
New York John F. Kennedy (JFK) 4

22:51
San Francisco (SFO) 1
Effective 2025-12-24 through 2026-01-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 667)
Duration: 6:46, non-stop
Boeing 767 (76W)
KLM KL7273
19:30
Buffalo (BUF)

21:38
Atlanta (ATL) S
Effective 2025-07-07 through 2025-08-29
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:08, non-stop
Airbus A321 (321)
KLM KL7273
19:30
Buffalo (BUF)

21:38
Atlanta (ATL) S
Effective 2025-09-01 through 2025-09-07
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:08, non-stop
Airbus A321 (321)
KLM KL7273
19:30
Buffalo (BUF)

21:48
Atlanta (ATL) S
Effective 2025-09-08 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:18, non-stop
Airbus A321 (321)
KLM KL7273
19:35
Buffalo (BUF)

21:49
Atlanta (ATL) S
Effective 2025-06-08 through 2025-06-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:14, non-stop
Airbus A321 (321)
KLM KL7273
19:35
Buffalo (BUF)

21:49
Atlanta (ATL) S
Operates only on 2025-07-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:14, non-stop
Airbus A321 (321)
KLM KL7273
19:46
Buffalo (BUF)

22:00
Atlanta (ATL) S
Effective 2025-06-09 through 2025-06-27
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2050)
Duration: 2:14, non-stop
Airbus A321 (321)
KLM KL7273
21:30
New York John F. Kennedy (JFK) 4

01:18(+1)
San Francisco (SFO) 1
Effective 2025-11-06 through 2025-12-23
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 1732)
Duration: 6:48, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
KLM KL7273
21:30
New York John F. Kennedy (JFK) 4

01:18(+1)
San Francisco (SFO) 1
Effective 2026-01-04 through 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 1732)
Duration: 6:48, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
KLM KL7273
21:30
New York John F. Kennedy (JFK) 4

01:25(+1)
San Francisco (SFO) 1
Effective from 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 1732)
Duration: 6:55, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:
  • Buffalo (BUF) - Atlanta (ATL)
  • New York John F. Kennedy (JFK) - San Francisco (SFO)
All KLM flights
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