United Airlines flight UA 3643: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 06:40 Rochester (ROC) 07:59 Newark Liberty, New York (EWR) C
UA 3643 Non-stop Embraer EMB 175 (E7W) 1:19 Effective 2026-04-30 through 2026-05-20
Sun 08:35 Portland (PWM) 10:23 Newark Liberty, New York (EWR) C
UA 3643 Non-stop Embraer EMB 175 (E7W) 1:48 Effective 2026-01-11 through 2026-02-08
Mon,Thu-Sat 08:40 Portland (PWM) 10:28 Newark Liberty, New York (EWR) C
UA 3643 Non-stop Embraer EMB 175 (E7W) 1:48 Effective 2026-01-08 through 2026-02-09
Wed 11:10 Portland (PWM) 12:58 Newark Liberty, New York (EWR) C
UA 3643 Non-stop Embraer EMB 175 (E7W) 1:48 Operates only on 2026-02-04
Tue,Wed 11:12 Portland (PWM) 13:00 Newark Liberty, New York (EWR) C
UA 3643 Non-stop Embraer EMB 175 (E7W) 1:48 Effective 2026-01-06 through 2026-02-03
Tue,Wed 11:12 Portland (PWM) 13:00 Newark Liberty, New York (EWR) C
UA 3643 Non-stop Embraer EMB 175 (E7W) 1:48 Effective 2026-02-10 through 2026-02-11
Daily 12:00 Newark Liberty, New York (EWR) C 13:35 Pittsburgh (PIT)
UA 3643 Non-stop Embraer EMB 175 (E7W) 1:35 Effective from 2026-06-25
Sat,Sun 15:30 Newark Liberty, New York (EWR) C 18:19 Jacksonville (JAX)
UA 3643 Non-stop Embraer EMB 175 (E7W) 2:49 Valid until 2026-01-04
Mon,Tue,Thu 16:00 Newark Liberty, New York (EWR) C 18:49 Jacksonville (JAX)
UA 3643 Non-stop Embraer EMB 175 (E7W) 2:49 Valid until 2026-01-01
Mon,Fri 16:02 Newark Liberty, New York (EWR) C 18:49 Jacksonville (JAX)
UA 3643 Non-stop Embraer EMB 175 (E7W) 2:47 Effective 2026-01-02 through 2026-01-05
Daily 17:10 Washington Dulles (IAD) 18:55 Detroit (DTW) E
UA 3643 Non-stop Embraer EMB 175 (E7W) 1:45 Effective 2026-03-05 through 2026-04-29
Mon-Fri,Sun 18:47 Raleigh/Durham (RDU) 2 20:48 Newark Liberty, New York (EWR) C
UA 3643 Non-stop Embraer EMB 175 (E7W) 2:01 Effective 2026-02-12 through 2026-03-04
Sat 19:10 Raleigh/Durham (RDU) 2 21:11 Newark Liberty, New York (EWR) C
UA 3643 Non-stop Embraer EMB 175 (E7W) 2:01 Effective 2026-02-14 through 2026-02-28
This flight number is listed as serving the following routes:


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United Airlines flight UA 3643: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA3643
06:40
Rochester (ROC)

07:59
Newark Liberty, New York (EWR) C
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:19, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3643
08:35
Portland (PWM)

10:23
Newark Liberty, New York (EWR) C
Effective 2026-01-11 through 2026-02-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:48, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3643
08:40
Portland (PWM)

10:28
Newark Liberty, New York (EWR) C
Effective 2026-01-08 through 2026-02-09
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
-
Duration: 1:48, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3643
11:10
Portland (PWM)

12:58
Newark Liberty, New York (EWR) C
Operates only on 2026-02-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:48, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3643
11:12
Portland (PWM)

13:00
Newark Liberty, New York (EWR) C
Effective 2026-01-06 through 2026-02-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:48, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3643
11:12
Portland (PWM)

13:00
Newark Liberty, New York (EWR) C
Effective 2026-02-10 through 2026-02-11
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:48, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3643
12:00
Newark Liberty, New York (EWR) C

13:35
Pittsburgh (PIT)
Effective from 2026-06-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:35, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3643
15:30
Newark Liberty, New York (EWR) C

18:19
Jacksonville (JAX)
Valid until 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 2:49, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3643
16:00
Newark Liberty, New York (EWR) C

18:49
Jacksonville (JAX)
Valid until 2026-01-01
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:49, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3643
16:02
Newark Liberty, New York (EWR) C

18:49
Jacksonville (JAX)
Effective 2026-01-02 through 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:47, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3643
17:10
Washington Dulles (IAD)

18:55
Detroit (DTW) E
Effective 2026-03-05 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:45, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3643
18:47
Raleigh/Durham (RDU) 2

20:48
Newark Liberty, New York (EWR) C
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:01, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3643
19:10
Raleigh/Durham (RDU) 2

21:11
Newark Liberty, New York (EWR) C
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:01, non-stop
Embraer EMB 175 (E7W)
This flight number is listed as serving the following routes:
  • Newark Liberty, New York (EWR) - Jacksonville (JAX)
  • Newark Liberty, New York (EWR) - Pittsburgh (PIT)
  • Portland (PWM) - Newark Liberty, New York (EWR)
  • Raleigh/Durham (RDU) - Newark Liberty, New York (EWR)
  • Rochester (ROC) - Newark Liberty, New York (EWR)
  • Washington Dulles (IAD) - Detroit (DTW)
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