Delta Air Lines flight DL 399: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 06:15 Minneapolis/Saint Paul (MSP) 1 10:25 Cancun (CUN) 3
DL 399 Non-stop Boeing 737-900 (739) 4:10 Effective 2026-03-08 through 2026-03-28
Daily 06:26 Minneapolis/Saint Paul (MSP) 1 11:40 Cancun (CUN) 3
DL 399 Non-stop Airbus A321 (321) 4:14 Effective 2026-01-19 through 2026-02-11
Daily 06:27 Minneapolis/Saint Paul (MSP) 1 11:40 Cancun (CUN) 3
DL 399 Non-stop Boeing 737-900 (739) 4:13 Effective 2026-01-06 through 2026-01-18
Daily 06:40 Minneapolis/Saint Paul (MSP) 1 11:55 Cancun (CUN) 3
DL 399 Non-stop Airbus A321 (321) 4:15 Effective 2026-02-12 through 2026-03-07
Mon,Tue,Fri-Sun 07:00 Minneapolis/Saint Paul (MSP) 1 12:10 Cancun (CUN) 3
DL 399 Non-stop Boeing 737-900 (739) 4:10 Valid until 2026-01-04
Wed,Thu 07:00 Minneapolis/Saint Paul (MSP) 1 12:10 Cancun (CUN) 3
DL 399 Non-stop Airbus A320 (320) 4:10 Valid until 2026-01-01
Sat 15:55 Boston Logan (BOS) A 18:54 Atlanta (ATL) S
DL 399 Non-stop Airbus A321 (321) 2:59 Effective 2026-05-09 through 2026-06-06
Sun 15:55 Boston Logan (BOS) A 18:54 Atlanta (ATL) S
DL 399 Non-stop Airbus A321 (321) 2:59 Operates only on 2026-05-24
Daily 16:20 Boston Logan (BOS) A 19:19 Atlanta (ATL) S
DL 399 Non-stop Airbus A321 (321) 2:59 Effective 2026-04-13 through 2026-05-08
Mon-Fri,Sun 16:20 Boston Logan (BOS) A 19:19 Atlanta (ATL) S
DL 399 Non-stop Airbus A321 (321) 2:59 Effective 2026-05-10 through 2026-05-22
Mon-Fri,Sun 16:20 Boston Logan (BOS) A 19:19 Atlanta (ATL) S
DL 399 Non-stop Airbus A321 (321) 2:59 Effective 2026-05-25 through 2026-07-06
Mon-Fri,Sun 16:20 Boston Logan (BOS) A 19:22 Atlanta (ATL) S
DL 399 Non-stop Airbus A321 (321) 3:02 Effective 2026-07-07 through 2026-08-14
Daily 16:20 Boston Logan (BOS) A 19:22 Atlanta (ATL) S
DL 399 Non-stop Airbus A321 (321) 3:02 Effective 2026-08-15 through 2026-10-05
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This flight number is listed as serving the following routes:
Delta Air Lines flight DL 399: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:

Delta Air Lines DL399
Effective 2026-03-08 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:10, non-stop
Boeing 737-900 (739)

Direct Flights:

Delta Air Lines DL399
Effective 2026-01-19 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:14, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL399
Effective 2026-01-06 through 2026-01-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:13, non-stop
Boeing 737-900 (739)

Direct Flights:

Delta Air Lines DL399
Effective 2026-02-12 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:15, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL399
Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
Sun
Duration: 4:10, non-stop
Boeing 737-900 (739)

Direct Flights:

Delta Air Lines DL399
Valid until 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 4:10, non-stop
Airbus A320 (320)

Direct Flights:

Delta Air Lines DL399
Effective 2026-05-09 through 2026-06-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:59, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL399
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:59, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL399
Effective 2026-04-13 through 2026-05-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:59, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL399
Effective 2026-05-10 through 2026-05-22
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:59, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL399
Effective 2026-05-25 through 2026-07-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:59, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL399
Effective 2026-07-07 through 2026-08-14
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 3:02, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL399
Effective 2026-08-15 through 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:02, non-stop
Airbus A321 (321)
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This flight number is listed as serving the following routes:
  • Boston Logan (BOS) - Atlanta (ATL)
  • Minneapolis/Saint Paul (MSP) - Cancun (CUN)