Delta Air Lines
flight
DL 2521:
Multiple routes
FLIGHT SCHEDULE
Direct Flights:
Delta Air Lines DL2521
Valid until 2026-01-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:17, non-stop
Airbus A220-100 (221)
Airbus A220-100 (221)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-05-07 through 2026-05-22
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 2:31, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-05-25 through 2026-08-14
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 2:31, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-08-15 through 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:31, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Delta Air Lines DL2521
Effective from 2026-10-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:32, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-04-13 through 2026-05-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:22, non-stop
Airbus A220-100 (221)
Airbus A220-100 (221)
Direct Flights:
Delta Air Lines DL2521
Valid until 2026-01-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:52, non-stop
Airbus A220-100 (221)
Airbus A220-100 (221)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-01-05 through 2026-01-12
Mon
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Duration: 3:14, non-stop
Airbus A220-100 (221)
Airbus A220-100 (221)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-01-13 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 3:14, non-stop
Airbus A220-100 (221)
Airbus A220-100 (221)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-01-06 through 2026-01-07
Mon
-
-
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 3:14, non-stop
Airbus A220-100 (221)
Airbus A220-100 (221)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-01-17 through 2026-01-31
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Duration: 3:15, non-stop
Airbus A220-100 (221)
Airbus A220-100 (221)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-02-14 through 2026-03-07
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Duration: 3:15, non-stop
Airbus A220-100 (221)
Airbus A220-100 (221)
Direct Flights:
Delta Air Lines DL2521
Operates only on 2026-02-07
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Duration: 3:15, non-stop
Airbus A220-100 (221)
Airbus A220-100 (221)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-03-08 through 2026-04-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:15, non-stop
Airbus A220-100 (221)
Airbus A220-100 (221)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-02-12 through 2026-03-06
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 3:15, non-stop
Airbus A220-100 (221)
Airbus A220-100 (221)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-05-07 through 2026-05-22
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 2:52, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-05-25 through 2026-08-14
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 2:52, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Delta Air Lines DL2521
Effective from 2026-08-15
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:52, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-04-13 through 2026-05-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:50, non-stop
Airbus A220-100 (221)
Airbus A220-100 (221)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-01-05 through 2026-01-14
Mon
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Duration: 2:57, non-stop
Airbus A220-100 (221)
Airbus A220-100 (221)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-01-15 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 2:57, non-stop
Airbus A220-100 (221)
Airbus A220-100 (221)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-03-08 through 2026-04-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:54, non-stop
Airbus A220-100 (221)
Airbus A220-100 (221)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-01-17 through 2026-03-07
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Duration: 2:51, non-stop
Airbus A220-100 (221)
Airbus A220-100 (221)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-02-18 through 2026-02-25
Mon
-
-
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 2:51, non-stop
Airbus A220-100 (221)
Airbus A220-100 (221)
Direct Flights:
Delta Air Lines DL2521
Operates only on 2026-03-04
Mon
-
-
Tue
-
-
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 2:51, non-stop
Airbus A220-100 (221)
Airbus A220-100 (221)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-02-12 through 2026-02-23
Mon
Tue
Wed
-
-
Thu
Fri
Sat
-
-
Sun
Duration: 2:51, non-stop
Airbus A220-100 (221)
Airbus A220-100 (221)
Direct Flights:
Delta Air Lines DL2521
Effective 2026-02-26 through 2026-03-06
Mon
Tue
Wed
-
-
Thu
Fri
Sat
-
-
Sun
Duration: 2:51, non-stop
Airbus A220-100 (221)
Airbus A220-100 (221)
This flight number is listed as serving the following routes:
- New York John F. Kennedy (JFK) - Sarasota/Bradenton (SRQ)
- Raleigh/Durham (RDU) - Minneapolis/Saint Paul (MSP)