Delta Air Lines flight DL 3666: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 07:00 Chicago O'Hare (ORD) 5 09:29 Detroit (DTW) M
DL 3666 Non-stop Canadair CRJ 900 (CR9) 1:29 Effective 2025-12-20 through 2026-01-05
Daily 10:00 Detroit (DTW) M 10:24 Appleton (ATW)
DL 3666 Non-stop Canadair CRJ 900 (CR9) 1:24 Valid until 2025-05-06
Daily 11:04 Appleton (ATW) 13:23 Detroit (DTW) M
DL 3666 Non-stop Canadair CRJ 900 (CR9) 1:19 Valid until 2025-05-06
Daily 11:24 Medford (MFR) 12:54 Seattle-Tacoma (SEA)
DL 3666 Non-stop Embraer EMB 175 (E7W) 1:30 Effective 2025-07-07 through 2025-09-07
Daily 13:00 Pasco (PSC) 14:14 Seattle-Tacoma (SEA)
DL 3666 Non-stop Embraer EMB 175 (E7W) 1:14 Effective 2025-05-07 through 2025-06-07
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This flight number is listed as serving the following routes:
Delta Air Lines flight DL 3666: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:

Delta Air Lines DL3666
Effective 2025-12-20 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:29, non-stop
Canadair CRJ 900 (CR9)

Delta Air Lines DL3666
Valid until 2025-05-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:24, non-stop
Canadair CRJ 900 (CR9)

Delta Air Lines DL3666
Valid until 2025-05-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:19, non-stop
Canadair CRJ 900 (CR9)

Delta Air Lines DL3666
Effective 2025-07-07 through 2025-09-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:30, non-stop
Embraer EMB 175 (E7W)

Delta Air Lines DL3666
Effective 2025-05-07 through 2025-06-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:14, non-stop
Embraer EMB 175 (E7W)
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This flight number is listed as serving the following routes:
  • Appleton (ATW) - Detroit (DTW)
  • Chicago O'Hare (ORD) - Detroit (DTW)
  • Medford (MFR) - Seattle-Tacoma (SEA)
  • Pasco (PSC) - Seattle-Tacoma (SEA)