United Airlines flight UA 3663: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Sat 07:25 Newark Liberty, New York (EWR) C 09:51 Atlanta (ATL) N
UA 3663 Non-stop Embraer EMB 175 (E7W) 2:26 Effective 2025-05-03 through 2025-05-17
Sun 07:40 Newark Liberty, New York (EWR) C 10:06 Atlanta (ATL) N
UA 3663 Non-stop Embraer EMB 175 (E7W) 2:26 Operates only on 2025-05-04
Daily 10:35 Ottawa (YOW) 11:43 Chicago O'Hare (ORD) 2
UA 3663 Non-stop Embraer EMB 175 (E7W) 2:08 Effective from 2025-10-26
Daily 11:38 Chicago O'Hare (ORD) 2 15:14 Savannah (SAV)
UA 3663 Non-stop Embraer EMB 175 (E7W) 2:36 Effective 2025-05-22 through 2025-06-25
Daily 13:00 Dulles, Washington (IAD) 15:00 Montreal-Trudeau (YUL)
UA 3663 Non-stop Embraer EMB 175 (E7W) 2:00 Effective 2025-08-19 through 2025-10-25
Daily 18:10 Chicago O'Hare (ORD) 2 21:59 Bangor (BGR)
UA 3663 Non-stop Embraer EMB 175 (E7W) 2:49 Effective 2025-06-26 through 2025-07-03
Daily 18:10 Chicago O'Hare (ORD) 2 21:59 Bangor (BGR)
UA 3663 Non-stop Embraer EMB 175 (E7W) 2:49 Effective 2025-07-05 through 2025-08-01
Mon-Fri,Sun 18:10 Chicago O'Hare (ORD) 2 21:59 Bangor (BGR)
UA 3663 Non-stop Embraer EMB 175 (E7W) 2:49 Effective 2025-08-03 through 2025-08-18
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This flight number is listed as serving the following routes:


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United Airlines flight UA 3663: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA3663
07:25
Newark Liberty, New York (EWR) C

09:51
Atlanta (ATL) N
Effective 2025-05-03 through 2025-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:26, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3663
07:40
Newark Liberty, New York (EWR) C

10:06
Atlanta (ATL) N
Operates only on 2025-05-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:26, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3663
10:35
Ottawa (YOW)

11:43
Chicago O'Hare (ORD) 2
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:08, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3663
11:38
Chicago O'Hare (ORD) 2

15:14
Savannah (SAV)
Effective 2025-05-22 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:36, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3663
13:00
Dulles, Washington (IAD)

15:00
Montreal-Trudeau (YUL)
Effective 2025-08-19 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:00, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3663
18:10
Chicago O'Hare (ORD) 2

21:59
Bangor (BGR)
Effective 2025-06-26 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:49, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3663
18:10
Chicago O'Hare (ORD) 2

21:59
Bangor (BGR)
Effective 2025-07-05 through 2025-08-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:49, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3663
18:10
Chicago O'Hare (ORD) 2

21:59
Bangor (BGR)
Effective 2025-08-03 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:49, non-stop
Embraer EMB 175 (E7W)
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Bangor (BGR)
  • Chicago O'Hare (ORD) - Savannah (SAV)
  • Dulles, Washington (IAD) - Montreal-Trudeau (YUL)
  • Newark Liberty, New York (EWR) - Atlanta (ATL)
  • Ottawa (YOW) - Chicago O'Hare (ORD)
All United Airlines flights
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