United Airlines flight UA 3688: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 14:32 New York LaGuardia (LGA) B 16:04 Washington Dulles (IAD)
UA 3688 Non-stop Embraer EMB 175 (E7W) 1:32 Effective from 2026-03-29
Daily 14:55 New York LaGuardia (LGA) B 16:25 Washington Dulles (IAD)
UA 3688 Non-stop Embraer EMB 175 (E7W) 1:30 Effective 2026-01-06 through 2026-02-11
Mon-Fri,Sun 14:59 New York LaGuardia (LGA) B 16:28 Washington Dulles (IAD)
UA 3688 Non-stop Embraer EMB 175 (E7W) 1:29 Effective 2026-02-12 through 2026-03-06
Daily 14:59 New York LaGuardia (LGA) B 16:28 Washington Dulles (IAD)
UA 3688 Non-stop Embraer EMB 175 (E7W) 1:29 Effective 2026-03-07 through 2026-03-28
Mon,Tue,Thu,Fri,Sun 17:15 Savannah (SAV) 19:29 Newark Liberty, New York (EWR) C
UA 3688 Non-stop Embraer EMB 175 (E7W) 2:14 Valid until 2026-01-05
Sat 18:42 Savannah (SAV) 20:57 Newark Liberty, New York (EWR) C
UA 3688 Non-stop Embraer EMB 175 (E7W) 2:15 Valid until 2026-01-03
This flight number is listed as serving the following routes:


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United Airlines flight UA 3688: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA3688
14:32
New York LaGuardia (LGA) B

16:04
Washington Dulles (IAD)
Effective from 2026-03-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:32, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3688
14:55
New York LaGuardia (LGA) B

16:25
Washington Dulles (IAD)
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:30, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3688
14:59
New York LaGuardia (LGA) B

16:28
Washington Dulles (IAD)
Effective 2026-02-12 through 2026-03-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:29, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3688
14:59
New York LaGuardia (LGA) B

16:28
Washington Dulles (IAD)
Effective 2026-03-07 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:29, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3688
17:15
Savannah (SAV)

19:29
Newark Liberty, New York (EWR) C
Valid until 2026-01-05
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:14, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3688
18:42
Savannah (SAV)

20:57
Newark Liberty, New York (EWR) C
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:15, non-stop
Embraer EMB 175 (E7W)
This flight number is listed as serving the following routes:
  • New York LaGuardia (LGA) - Washington Dulles (IAD)
  • Savannah (SAV) - Newark Liberty, New York (EWR)
All United Airlines flights
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