Delta Air Lines flight DL 4100: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sat 10:15 Detroit (DTW) M 11:42 Buffalo (BUF)
DL 4100 Non-stop Canadair CRJ 700 (CR7) 1:27 Effective 2026-01-10 through 2026-01-17
Daily 15:14 Seattle-Tacoma (SEA) 17:29 San Jose (SJC) A
DL 4100 Non-stop Embraer EMB 175 (E7W) 2:15 Effective 2026-03-08 through 2026-03-14
Daily 15:14 Seattle-Tacoma (SEA) 17:30 San Jose (SJC) A
DL 4100 Non-stop Embraer EMB 175 (E7W) 2:16 Effective 2026-03-15 through 2026-04-12
Mon-Fri 15:25 Seattle-Tacoma (SEA) 17:38 San Jose (SJC) A
DL 4100 Non-stop Embraer EMB 175 (E7W) 2:13 Effective 2026-02-12 through 2026-02-20
Mon-Fri,Sun 15:25 Seattle-Tacoma (SEA) 17:38 San Jose (SJC) A
DL 4100 Non-stop Embraer EMB 175 (E7W) 2:13 Effective 2026-02-22 through 2026-03-06
Daily 18:15 San Jose (SJC) A 20:33 Seattle-Tacoma (SEA)
DL 4100 Non-stop Embraer EMB 175 (E7W) 2:18 Effective 2026-03-08 through 2026-03-14
Daily 18:15 San Jose (SJC) A 20:35 Seattle-Tacoma (SEA)
DL 4100 Non-stop Embraer EMB 175 (E7W) 2:20 Effective 2026-03-15 through 2026-04-12
Mon 18:20 San Jose (SJC) A 20:45 Seattle-Tacoma (SEA)
DL 4100 Non-stop Embraer EMB 175 (E7W) 2:25 Operates only on 2026-01-05
Mon-Fri 18:20 San Jose (SJC) A 20:43 Seattle-Tacoma (SEA)
DL 4100 Non-stop Embraer EMB 175 (E7W) 2:23 Effective 2026-02-12 through 2026-02-20
Mon-Fri,Sun 18:20 San Jose (SJC) A 20:43 Seattle-Tacoma (SEA)
DL 4100 Non-stop Embraer EMB 175 (E7W) 2:23 Effective 2026-02-22 through 2026-03-06
Mon-Fri,Sun 18:25 San Jose (SJC) A 20:50 Seattle-Tacoma (SEA)
DL 4100 Non-stop Embraer EMB 175 (E7W) 2:25 Effective 2026-01-06 through 2026-02-06
Mon-Wed,Sat,Sun 18:25 San Jose (SJC) A 20:50 Seattle-Tacoma (SEA)
DL 4100 Non-stop Embraer EMB 175 (E7W) 2:25 Effective 2026-02-07 through 2026-02-11
Daily 18:25 San Jose (SJC) A 20:49 Seattle-Tacoma (SEA)
DL 4100 Non-stop Embraer EMB 175 (E7W) 2:24 Effective 2026-04-13 through 2026-05-06
Mon-Fri,Sun 19:35 San Jose (SJC) A 21:59 Seattle-Tacoma (SEA)
DL 4100 Non-stop Embraer EMB 175 (E7W) 2:24 Effective 2026-05-07 through 2026-05-22
Mon-Fri,Sun 19:35 San Jose (SJC) A 21:59 Seattle-Tacoma (SEA)
DL 4100 Non-stop Embraer EMB 175 (E7W) 2:24 Effective 2026-05-25 through 2026-10-05
Mon-Fri,Sun 19:35 San Jose (SJC) A 22:05 Seattle-Tacoma (SEA)
DL 4100 Non-stop Embraer EMB 175 (E7W) 2:30 Effective from 2026-10-06
This flight number is listed as serving the following routes:


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Delta Air Lines flight DL 4100: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Delta Air Lines DL4100
10:15
Detroit (DTW) M

11:42
Buffalo (BUF)
Effective 2026-01-10 through 2026-01-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:27, non-stop
Canadair CRJ 700 (CR7)
Direct Flights:
Delta Air Lines DL4100
15:14
Seattle-Tacoma (SEA)

17:29
San Jose (SJC) A
Effective 2026-03-08 through 2026-03-14
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:15, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL4100
15:14
Seattle-Tacoma (SEA)

17:30
San Jose (SJC) A
Effective 2026-03-15 through 2026-04-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:16, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL4100
15:25
Seattle-Tacoma (SEA)

17:38
San Jose (SJC) A
Effective 2026-02-12 through 2026-02-20
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:13, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL4100
15:25
Seattle-Tacoma (SEA)

17:38
San Jose (SJC) A
Effective 2026-02-22 through 2026-03-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:13, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL4100
18:15
San Jose (SJC) A

20:33
Seattle-Tacoma (SEA)
Effective 2026-03-08 through 2026-03-14
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:18, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL4100
18:15
San Jose (SJC) A

20:35
Seattle-Tacoma (SEA)
Effective 2026-03-15 through 2026-04-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:20, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL4100
18:20
San Jose (SJC) A

20:45
Seattle-Tacoma (SEA)
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL4100
18:20
San Jose (SJC) A

20:43
Seattle-Tacoma (SEA)
Effective 2026-02-12 through 2026-02-20
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:23, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL4100
18:20
San Jose (SJC) A

20:43
Seattle-Tacoma (SEA)
Effective 2026-02-22 through 2026-03-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:23, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL4100
18:25
San Jose (SJC) A

20:50
Seattle-Tacoma (SEA)
Effective 2026-01-06 through 2026-02-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:25, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL4100
18:25
San Jose (SJC) A

20:50
Seattle-Tacoma (SEA)
Effective 2026-02-07 through 2026-02-11
Mon
Tue
Wed
Thu
-
Fri
-
Sat
Sun
Duration: 2:25, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL4100
18:25
San Jose (SJC) A

20:49
Seattle-Tacoma (SEA)
Effective 2026-04-13 through 2026-05-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:24, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL4100
19:35
San Jose (SJC) A

21:59
Seattle-Tacoma (SEA)
Effective 2026-05-07 through 2026-05-22
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:24, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL4100
19:35
San Jose (SJC) A

21:59
Seattle-Tacoma (SEA)
Effective 2026-05-25 through 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:24, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL4100
19:35
San Jose (SJC) A

22:05
Seattle-Tacoma (SEA)
Effective from 2026-10-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:30, non-stop
Embraer EMB 175 (E7W)
This flight number is listed as serving the following routes:
  • Detroit (DTW) - Buffalo (BUF)
  • Seattle-Tacoma (SEA) - San Jose (SJC)
All Delta Air Lines flights
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