Delta Air Lines flight DL 3870: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 07:05 Phoenix Sky Harbor (PHX) 3 08:50 Los Angeles (LAX) 3
DL 3870 Non-stop Embraer EMB 175 (E7W) 1:45 Effective 2026-03-08 through 2026-04-12
Mon,Tue,Fri-Sun 11:15 Salt Lake City (SLC) 12:20 Twin Falls (TWF)
DL 3870 Non-stop Embraer EMB 175 (E7W) 1:05 Valid until 2026-01-04
Mon,Tue,Fri-Sun 13:15 Twin Falls (TWF) 14:21 Salt Lake City (SLC)
DL 3870 Non-stop Embraer EMB 175 (E7W) 1:06 Valid until 2026-01-04
Mon-Fri,Sun 13:45 Salt Lake City (SLC) 14:46 Twin Falls (TWF)
DL 3870 Non-stop Embraer EMB 175 (E7W) 1:01 Effective 2026-02-01 through 2026-02-11
Daily 13:59 Salt Lake City (SLC) 15:00 Twin Falls (TWF)
DL 3870 Non-stop Embraer EMB 175 (E7W) 1:01 Effective 2026-01-05 through 2026-01-31
Sat 13:59 Salt Lake City (SLC) 15:00 Twin Falls (TWF)
DL 3870 Non-stop Embraer EMB 175 (E7W) 1:01 Operates only on 2026-02-07
Daily 14:00 Salt Lake City (SLC) 14:59 Twin Falls (TWF)
DL 3870 Non-stop Embraer EMB 175 (E7W) 0:59 Effective 2026-02-12 through 2026-03-07
Mon-Fri,Sun 15:35 Twin Falls (TWF) 16:33 Salt Lake City (SLC)
DL 3870 Non-stop Embraer EMB 175 (E7W) 0:58 Effective 2026-02-01 through 2026-02-11
Daily 15:40 Twin Falls (TWF) 16:38 Salt Lake City (SLC)
DL 3870 Non-stop Embraer EMB 175 (E7W) 0:58 Effective 2026-01-05 through 2026-01-31
Sat 15:40 Twin Falls (TWF) 16:38 Salt Lake City (SLC)
DL 3870 Non-stop Embraer EMB 175 (E7W) 0:58 Operates only on 2026-02-07
Daily 15:40 Twin Falls (TWF) 16:36 Salt Lake City (SLC)
DL 3870 Non-stop Embraer EMB 175 (E7W) 0:56 Effective 2026-02-12 through 2026-03-07
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This flight number is listed as serving the following routes:


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Delta Air Lines flight DL 3870: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Delta Air Lines DL3870
07:05
Phoenix Sky Harbor (PHX) 3

08:50
Los Angeles (LAX) 3
Effective 2026-03-08 through 2026-04-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:45, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL3870
11:15
Salt Lake City (SLC)

12:20
Twin Falls (TWF)
Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
Sun
Duration: 1:05, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL3870
13:15
Twin Falls (TWF)

14:21
Salt Lake City (SLC)
Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
Sun
Duration: 1:06, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL3870
13:45
Salt Lake City (SLC)

14:46
Twin Falls (TWF)
Effective 2026-02-01 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:01, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL3870
13:59
Salt Lake City (SLC)

15:00
Twin Falls (TWF)
Effective 2026-01-05 through 2026-01-31
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:01, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL3870
13:59
Salt Lake City (SLC)

15:00
Twin Falls (TWF)
Operates only on 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:01, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL3870
14:00
Salt Lake City (SLC)

14:59
Twin Falls (TWF)
Effective 2026-02-12 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 0:59, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL3870
15:35
Twin Falls (TWF)

16:33
Salt Lake City (SLC)
Effective 2026-02-01 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 0:58, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL3870
15:40
Twin Falls (TWF)

16:38
Salt Lake City (SLC)
Effective 2026-01-05 through 2026-01-31
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 0:58, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL3870
15:40
Twin Falls (TWF)

16:38
Salt Lake City (SLC)
Operates only on 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 0:58, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
Delta Air Lines DL3870
15:40
Twin Falls (TWF)

16:36
Salt Lake City (SLC)
Effective 2026-02-12 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 0:56, non-stop
Embraer EMB 175 (E7W)
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This flight number is listed as serving the following routes:
  • Phoenix Sky Harbor (PHX) - Los Angeles (LAX)
  • Twin Falls (TWF) - Salt Lake City (SLC)
All Delta Air Lines flights
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