United Airlines flight UA 3645: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon,Tue,Thu-Sun 05:30 Burlington (BTV) 07:18 Dulles, Washington (IAD)
UA 3645 Non-stop Embraer EMB 175 (E7W) 1:48 Effective 2025-08-01 through 2025-08-18
Mon,Tue,Thu-Sun 06:00 Buffalo (BUF) 07:19 Dulles, Washington (IAD)
UA 3645 Non-stop Embraer EMB 175 (E7W) 1:19 Effective 2025-05-02 through 2025-05-20
Wed 06:00 Buffalo (BUF) 07:19 Dulles, Washington (IAD)
UA 3645 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:19 Effective 2025-05-07 through 2025-05-21
Mon-Fri 07:10 Chicago O'Hare (ORD) 2 09:48 New Orleans (MSY)
UA 3645 Non-stop Embraer EMB 175 (E7W) 2:38 Effective 2025-05-22 through 2025-05-30
Mon-Fri,Sun 07:10 Chicago O'Hare (ORD) 2 09:48 New Orleans (MSY)
UA 3645 Non-stop Embraer EMB 175 (E7W) 2:38 Effective 2025-06-01 through 2025-06-20
Mon-Wed 07:10 Chicago O'Hare (ORD) 2 09:48 New Orleans (MSY)
UA 3645 Non-stop Embraer EMB 175 (E7W) 2:38 Effective 2025-06-23 through 2025-06-25
Daily 10:47 Newark Liberty, New York (EWR) C 12:51 Myrtle Beach (MYR)
UA 3645 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:04 Effective 2025-10-26 through 2026-02-11
Sat 11:00 Newark Liberty, New York (EWR) C 12:21 Boston Logan (BOS) B
UA 3645 Non-stop Embraer EMB 175 (E7W) 1:21 Operates only on 2025-06-21
Sun 11:07 Newark Liberty, New York (EWR) C 12:28 Boston Logan (BOS) B
UA 3645 Non-stop Embraer EMB 175 (E7W) 1:21 Operates only on 2025-06-22
Daily 11:14 Indianapolis (IND) 13:26 Newark Liberty, New York (EWR) C
UA 3645 Non-stop Embraer EMB 175 (E7W) 2:12 Effective 2025-09-25 through 2025-10-25
Daily 11:50 Indianapolis (IND) 14:02 Newark Liberty, New York (EWR) C
UA 3645 Non-stop Embraer EMB 175 (E7W) 2:12 Effective 2025-08-19 through 2025-09-24
Daily 12:08 Newark Liberty, New York (EWR) C 14:12 Myrtle Beach (MYR)
UA 3645 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:04 Effective from 2026-02-12
Sat 18:03 Bangor (BGR) 20:00 Newark Liberty, New York (EWR) C
UA 3645 Non-stop Embraer EMB 175 (E7W) 1:57 Effective 2025-06-28 through 2025-07-26
Mon-Fri 18:15 Bangor (BGR) 20:12 Newark Liberty, New York (EWR) C
UA 3645 Non-stop Embraer EMB 175 (E7W) 1:57 Effective 2025-06-26 through 2025-07-03
Sun 18:15 Bangor (BGR) 20:12 Newark Liberty, New York (EWR) C
UA 3645 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:57 Effective 2025-06-29 through 2025-07-27
Mon-Fri 18:15 Bangor (BGR) 20:12 Newark Liberty, New York (EWR) C
UA 3645 Non-stop Embraer EMB 175 (E7W) 1:57 Effective 2025-07-07 through 2025-07-31
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This flight number is listed as serving the following routes:


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United Airlines flight UA 3645: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA3645
05:30
Burlington (BTV)

07:18
Dulles, Washington (IAD)
Effective 2025-08-01 through 2025-08-18
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Duration: 1:48, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3645
06:00
Buffalo (BUF)

07:19
Dulles, Washington (IAD)
Effective 2025-05-02 through 2025-05-20
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Duration: 1:19, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3645
06:00
Buffalo (BUF)

07:19
Dulles, Washington (IAD)
Effective 2025-05-07 through 2025-05-21
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:19, non-stop
Embraer EMB 170 / EMB 175 (E70)
United Airlines UA3645
07:10
Chicago O'Hare (ORD) 2

09:48
New Orleans (MSY)
Effective 2025-05-22 through 2025-05-30
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:38, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3645
07:10
Chicago O'Hare (ORD) 2

09:48
New Orleans (MSY)
Effective 2025-06-01 through 2025-06-20
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:38, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3645
07:10
Chicago O'Hare (ORD) 2

09:48
New Orleans (MSY)
Effective 2025-06-23 through 2025-06-25
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:38, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3645
10:47
Newark Liberty, New York (EWR) C

12:51
Myrtle Beach (MYR)
Effective 2025-10-26 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:04, non-stop
Embraer EMB 170 / EMB 175 (E70)
United Airlines UA3645
11:00
Newark Liberty, New York (EWR) C

12:21
Boston Logan (BOS) B
Operates only on 2025-06-21
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:21, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3645
11:07
Newark Liberty, New York (EWR) C

12:28
Boston Logan (BOS) B
Operates only on 2025-06-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:21, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3645
11:14
Indianapolis (IND)

13:26
Newark Liberty, New York (EWR) C
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:12, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3645
11:50
Indianapolis (IND)

14:02
Newark Liberty, New York (EWR) C
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:12, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3645
12:08
Newark Liberty, New York (EWR) C

14:12
Myrtle Beach (MYR)
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:04, non-stop
Embraer EMB 170 / EMB 175 (E70)
United Airlines UA3645
18:03
Bangor (BGR)

20:00
Newark Liberty, New York (EWR) C
Effective 2025-06-28 through 2025-07-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:57, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3645
18:15
Bangor (BGR)

20:12
Newark Liberty, New York (EWR) C
Effective 2025-06-26 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 1:57, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3645
18:15
Bangor (BGR)

20:12
Newark Liberty, New York (EWR) C
Effective 2025-06-29 through 2025-07-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:57, non-stop
Embraer EMB 170 / EMB 175 (E70)
United Airlines UA3645
18:15
Bangor (BGR)

20:12
Newark Liberty, New York (EWR) C
Effective 2025-07-07 through 2025-07-31
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 1:57, non-stop
Embraer EMB 175 (E7W)
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This flight number is listed as serving the following routes:
  • Bangor (BGR) - Newark Liberty, New York (EWR)
  • Buffalo (BUF) - Dulles, Washington (IAD)
  • Burlington (BTV) - Dulles, Washington (IAD)
  • Chicago O'Hare (ORD) - New Orleans (MSY)
  • Indianapolis (IND) - Newark Liberty, New York (EWR)
  • Newark Liberty, New York (EWR) - Boston Logan (BOS)
  • Newark Liberty, New York (EWR) - Myrtle Beach (MYR)
All United Airlines flights
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