United Airlines flight UA 3644: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 05:30 Syracuse (SYR) 07:09 Newark Liberty, New York (EWR) C
UA 3644 Non-stop Embraer EMB 175 (E7W) 1:39 Valid until 2026-01-05
Tue-Sat 06:00 Norfolk (ORF) 07:40 Newark Liberty, New York (EWR) C
UA 3644 Non-stop Embraer EMB 175 (E7W) 1:40 Effective 2026-03-06 through 2026-03-28
Daily 06:07 Syracuse (SYR) 07:24 Newark Liberty, New York (EWR) C
UA 3644 Non-stop Embraer EMB 175 (E7W) 1:17 Effective from 2026-05-21
Sat 08:11 Newark Liberty, New York (EWR) C 09:47 Richmond (RIC)
UA 3644 Non-stop Embraer EMB 175 (E7W) 1:36 Effective 2026-02-14 through 2026-02-28
Mon-Fri,Sun 08:24 Newark Liberty, New York (EWR) C 10:02 Richmond (RIC)
UA 3644 Non-stop Embraer EMB 175 (E7W) 1:38 Effective 2026-02-12 through 2026-03-04
Daily 13:00 Newark Liberty, New York (EWR) C 15:12 Hilton Head Island (HHH)
UA 3644 Non-stop Embraer EMB 175 (E7W) 2:12 Effective 2026-03-29 through 2026-05-20
Mon-Wed,Fri,Sun 17:50 Chicago O'Hare (ORD) 2 19:10 Cedar Rapids (CID)
UA 3644 Non-stop Embraer EMB 175 (E7W) 1:20 Effective 2026-01-06 through 2026-02-02
Mon-Wed 17:50 Chicago O'Hare (ORD) 2 19:10 Cedar Rapids (CID)
UA 3644 Non-stop Embraer EMB 175 (E7W) 1:20 Effective 2026-02-04 through 2026-02-10
Wed 18:30 Newark Liberty, New York (EWR) C 20:14 Bangor (BGR)
UA 3644 Non-stop Embraer EMB 175 (E7W) 1:44 Operates only on 2026-02-11
This flight number is listed as serving the following routes:


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United Airlines flight UA 3644: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA3644
05:30
Syracuse (SYR)

07:09
Newark Liberty, New York (EWR) C
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:39, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3644
06:00
Norfolk (ORF)

07:40
Newark Liberty, New York (EWR) C
Effective 2026-03-06 through 2026-03-28
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 1:40, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3644
06:07
Syracuse (SYR)

07:24
Newark Liberty, New York (EWR) C
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:17, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3644
08:11
Newark Liberty, New York (EWR) C

09:47
Richmond (RIC)
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:36, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3644
08:24
Newark Liberty, New York (EWR) C

10:02
Richmond (RIC)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:38, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3644
13:00
Newark Liberty, New York (EWR) C

15:12
Hilton Head Island (HHH)
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:12, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3644
17:50
Chicago O'Hare (ORD) 2

19:10
Cedar Rapids (CID)
Effective 2026-01-06 through 2026-02-02
Mon
Tue
Wed
Thu
-
Fri
Sat
-
Sun
Duration: 1:20, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3644
17:50
Chicago O'Hare (ORD) 2

19:10
Cedar Rapids (CID)
Effective 2026-02-04 through 2026-02-10
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:20, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3644
18:30
Newark Liberty, New York (EWR) C

20:14
Bangor (BGR)
Operates only on 2026-02-11
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:44, non-stop
Embraer EMB 175 (E7W)
This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Cedar Rapids (CID)
  • Newark Liberty, New York (EWR) - Bangor (BGR)
  • Newark Liberty, New York (EWR) - Hilton Head Island (HHH)
  • Newark Liberty, New York (EWR) - Richmond (RIC)
  • Norfolk (ORF) - Newark Liberty, New York (EWR)
  • Syracuse (SYR) - Newark Liberty, New York (EWR)
All United Airlines flights
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