United Airlines flight UA 3665: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 07:00 Montreal-Trudeau (YUL) 08:54 Newark Liberty, New York (EWR) C
UA 3665 Non-stop Embraer EMB 175 (E7W) 1:54 Effective 2026-02-12 through 2026-03-04
Daily 07:00 Newark Liberty, New York (EWR) C 08:19 Portland (PWM)
UA 3665 Non-stop Embraer EMB 175 (E7W) 1:19 Effective from 2026-05-21
Daily 07:25 Newark Liberty, New York (EWR) C 08:44 Portland (PWM)
UA 3665 Non-stop Embraer EMB 175 (E7W) 1:19 Effective 2026-04-30 through 2026-05-20
Sat 08:15 Washington Dulles (IAD) 11:23 Austin (AUS)
UA 3665 Non-stop Embraer EMB 175 (E7W) 4:08 Effective 2026-03-07 through 2026-03-28
Mon-Fri 09:00 Newark Liberty, New York (EWR) C 11:14 Asheville/Hendersonville (AVL)
UA 3665 Non-stop Embraer EMB 175 (E7W) 2:14 Effective 2026-03-05 through 2026-03-27
Sun 09:29 Newark Liberty, New York (EWR) C 11:43 Asheville/Hendersonville (AVL)
UA 3665 Non-stop Embraer EMB 175 (E7W) 2:14 Effective 2026-03-08 through 2026-03-22
Mon-Fri,Sun 10:24 Richmond (RIC) 12:00 Chicago O'Hare (ORD) 2
UA 3665 Non-stop Embraer EMB 175 (E7W) 2:36 Valid until 2026-01-05
Sat 10:29 Richmond (RIC) 12:05 Chicago O'Hare (ORD) 2
UA 3665 Non-stop Embraer EMB 175 (E7W) 2:36 Valid until 2026-01-03
Mon-Fri,Sun 12:25 Norfolk (ORF) 14:13 Newark Liberty, New York (EWR) C
UA 3665 Non-stop Embraer EMB 175 (E7W) 1:48 Effective 2026-01-08 through 2026-02-03
Mon-Fri,Sun 12:25 Norfolk (ORF) 14:13 Newark Liberty, New York (EWR) C
UA 3665 Non-stop Embraer EMB 175 (E7W) 1:48 Effective 2026-02-05 through 2026-02-11
Wed 12:35 Norfolk (ORF) 14:23 Newark Liberty, New York (EWR) C
UA 3665 Non-stop Embraer EMB 175 (E7W) 1:48 Operates only on 2026-01-07
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This flight number is listed as serving the following routes:


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United Airlines flight UA 3665: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA3665
07:00
Montreal-Trudeau (YUL)

08:54
Newark Liberty, New York (EWR) C
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:54, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3665
07:00
Newark Liberty, New York (EWR) C

08:19
Portland (PWM)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:19, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3665
07:25
Newark Liberty, New York (EWR) C

08:44
Portland (PWM)
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 UA3665
08:15
Washington Dulles (IAD)

11:23
Austin (AUS)
Effective 2026-03-07 through 2026-03-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:08, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3665
09:00
Newark Liberty, New York (EWR) C

11:14
Asheville/Hendersonville (AVL)
Effective 2026-03-05 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:14, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3665
09:29
Newark Liberty, New York (EWR) C

11:43
Asheville/Hendersonville (AVL)
Effective 2026-03-08 through 2026-03-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:14, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3665
10:24
Richmond (RIC)

12:00
Chicago O'Hare (ORD) 2
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:36, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3665
10:29
Richmond (RIC)

12:05
Chicago O'Hare (ORD) 2
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:36, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3665
12:25
Norfolk (ORF)

14:13
Newark Liberty, New York (EWR) C
Effective 2026-01-08 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:48, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3665
12:25
Norfolk (ORF)

14:13
Newark Liberty, New York (EWR) C
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:48, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3665
12:35
Norfolk (ORF)

14:23
Newark Liberty, New York (EWR) C
Operates only on 2026-01-07
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:48, non-stop
Embraer EMB 175 (E7W)
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This flight number is listed as serving the following routes:
  • Montreal-Trudeau (YUL) - Newark Liberty, New York (EWR)
  • Newark Liberty, New York (EWR) - Asheville/Hendersonville (AVL)
  • Newark Liberty, New York (EWR) - Portland (PWM)
  • Norfolk (ORF) - Newark Liberty, New York (EWR)
  • Richmond (RIC) - Chicago O'Hare (ORD)
  • Washington Dulles (IAD) - Austin (AUS)
All United Airlines flights
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