Delta Air Lines flight DL 3664: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 10:35 Detroit (DTW) M 12:02 Louisville (SDF)
DL 3664 Non-stop Canadair CRJ 900 (CR9) 1:27 Effective 2025-12-20 through 2026-01-05
Daily 13:30 Louisville (SDF) 14:55 Detroit (DTW) M
DL 3664 Non-stop Canadair CRJ 900 (CR9) 1:25 Effective 2025-12-20 through 2026-01-05
Mon-Fri,Sun 17:00 Grand Rapids (GRR) 18:57 New York LaGuardia (LGA) C
DL 3664 Non-stop Embraer EMB 175 (E7W) 1:57 Valid until 2025-05-06
Mon-Fri,Sun 20:35 Salt Lake City (SLC) 00:31 Austin (AUS)
DL 3664 Non-stop Embraer EMB 175 (E7W) 2:56 Effective 2025-06-08 through 2025-06-27
The flight arrives 1 day after departure.
Sun 20:35 Salt Lake City (SLC) 00:31 Austin (AUS)
DL 3664 Non-stop Embraer EMB 175 (E7W) 2:56 Operates only on 2025-07-06
The flight arrives 1 day after departure.
Mon-Fri,Sun 20:55 Salt Lake City (SLC) 00:46 Austin (AUS)
DL 3664 Non-stop Embraer EMB 175 (E7W) 2:51 Effective 2025-07-07 through 2025-08-29
The flight arrives 1 day after departure.
Mon-Fri,Sun 20:55 Salt Lake City (SLC) 00:46 Austin (AUS)
DL 3664 Non-stop Embraer EMB 175 (E7W) 2:51 Effective 2025-09-01 through 2025-09-07
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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Delta Air Lines flight DL 3664: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Delta Air Lines DL3664
10:35
Detroit (DTW) M

12:02
Louisville (SDF)
Effective 2025-12-20 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:27, non-stop
Canadair CRJ 900 (CR9)
Delta Air Lines DL3664
13:30
Louisville (SDF)

14:55
Detroit (DTW) M
Effective 2025-12-20 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:25, non-stop
Canadair CRJ 900 (CR9)
Delta Air Lines DL3664
17:00
Grand Rapids (GRR)

18:57
New York LaGuardia (LGA) C
Valid until 2025-05-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:57, non-stop
Embraer EMB 175 (E7W)
Delta Air Lines DL3664
20:35
Salt Lake City (SLC)

00:31(+1)
Austin (AUS)
Effective 2025-06-08 through 2025-06-27
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:56, non-stop
Embraer EMB 175 (E7W)
The flight arrives 1 day after departure.
Delta Air Lines DL3664
20:35
Salt Lake City (SLC)

00:31(+1)
Austin (AUS)
Operates only on 2025-07-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:56, non-stop
Embraer EMB 175 (E7W)
The flight arrives 1 day after departure.
Delta Air Lines DL3664
20:55
Salt Lake City (SLC)

00:46(+1)
Austin (AUS)
Effective 2025-07-07 through 2025-08-29
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:51, non-stop
Embraer EMB 175 (E7W)
The flight arrives 1 day after departure.
Delta Air Lines DL3664
20:55
Salt Lake City (SLC)

00:46(+1)
Austin (AUS)
Effective 2025-09-01 through 2025-09-07
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:51, non-stop
Embraer EMB 175 (E7W)
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:
  • Grand Rapids (GRR) - New York LaGuardia (LGA)
  • Louisville (SDF) - Detroit (DTW)
  • Salt Lake City (SLC) - Austin (AUS)
All Delta Air Lines flights
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