Delta Air Lines flight DL 3978: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 09:00 Minneapolis/Saint Paul (MSP) 1 12:04 Louisville (SDF)
DL 3978 Non-stop Canadair CRJ 900 (CR9) 2:04 Effective 2025-06-08 through 2025-07-06
Daily 09:00 Minneapolis/Saint Paul (MSP) 1 12:03 Louisville (SDF)
DL 3978 Non-stop Embraer EMB 175 (E7W) 2:03 Effective 2025-09-08 through 2025-12-19
Daily 09:00 Minneapolis/Saint Paul (MSP) 1 12:04 Louisville (SDF)
DL 3978 Non-stop Embraer EMB 175 (E7W) 2:04 Effective from 2026-01-06
Daily 12:40 Louisville (SDF) 13:48 Minneapolis/Saint Paul (MSP) 1
DL 3978 Non-stop Embraer EMB 175 (E7W) 2:08 Effective 2025-07-07 through 2025-09-07
Daily 12:40 Louisville (SDF) 13:50 Minneapolis/Saint Paul (MSP) 1
DL 3978 Non-stop Embraer EMB 175 (E7W) 2:10 Effective 2025-09-08 through 2025-12-19
Daily 12:44 Louisville (SDF) 13:50 Minneapolis/Saint Paul (MSP) 1
DL 3978 Non-stop Canadair CRJ 900 (CR9) 2:06 Effective 2025-06-08 through 2025-07-06
Daily 13:20 Louisville (SDF) 14:34 Minneapolis/Saint Paul (MSP) 1
DL 3978 Non-stop Embraer EMB 175 (E7W) 2:14 Effective from 2026-01-06
Daily 15:10 Salt Lake City (SLC) 16:26 Boise (BOI)
DL 3978 Non-stop Embraer EMB 175 (E7W) 1:16 Effective 2025-12-20 through 2026-01-05
Daily 17:10 Boise (BOI) 18:32 Salt Lake City (SLC)
DL 3978 Non-stop Embraer EMB 175 (E7W) 1:22 Effective 2025-12-20 through 2026-01-05
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This flight number is listed as serving the following routes:


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Delta Air Lines flight DL 3978: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Delta Air Lines DL3978
09:00
Minneapolis/Saint Paul (MSP) 1

12:04
Louisville (SDF)
Effective 2025-06-08 through 2025-07-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:04, non-stop
Canadair CRJ 900 (CR9)
Delta Air Lines DL3978
09:00
Minneapolis/Saint Paul (MSP) 1

12:03
Louisville (SDF)
Effective 2025-09-08 through 2025-12-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:03, non-stop
Embraer EMB 175 (E7W)
Delta Air Lines DL3978
09:00
Minneapolis/Saint Paul (MSP) 1

12:04
Louisville (SDF)
Effective from 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:04, non-stop
Embraer EMB 175 (E7W)
Delta Air Lines DL3978
12:40
Louisville (SDF)

13:48
Minneapolis/Saint Paul (MSP) 1
Effective 2025-07-07 through 2025-09-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:08, non-stop
Embraer EMB 175 (E7W)
Delta Air Lines DL3978
12:40
Louisville (SDF)

13:50
Minneapolis/Saint Paul (MSP) 1
Effective 2025-09-08 through 2025-12-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:10, non-stop
Embraer EMB 175 (E7W)
Delta Air Lines DL3978
12:44
Louisville (SDF)

13:50
Minneapolis/Saint Paul (MSP) 1
Effective 2025-06-08 through 2025-07-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:06, non-stop
Canadair CRJ 900 (CR9)
Delta Air Lines DL3978
13:20
Louisville (SDF)

14:34
Minneapolis/Saint Paul (MSP) 1
Effective from 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:14, non-stop
Embraer EMB 175 (E7W)
Delta Air Lines DL3978
15:10
Salt Lake City (SLC)

16:26
Boise (BOI)
Effective 2025-12-20 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:16, non-stop
Embraer EMB 175 (E7W)
Delta Air Lines DL3978
17:10
Boise (BOI)

18:32
Salt Lake City (SLC)
Effective 2025-12-20 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:22, non-stop
Embraer EMB 175 (E7W)
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This flight number is listed as serving the following routes:
  • Louisville (SDF) - Minneapolis/Saint Paul (MSP)
  • Salt Lake City (SLC) - Boise (BOI)
All Delta Air Lines flights
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