United Airlines flight UA 3423: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 06:00 Cincinnati (CVG) 07:48 Newark Liberty, New York (EWR) C
UA 3423 Non-stop Embraer EMB 175 (E7W) 1:48 Effective from 2026-05-21
Daily 06:02 Cincinnati (CVG) 08:07 Newark Liberty, New York (EWR) C
UA 3423 Non-stop Embraer EMB 175 (E7W) 2:05 Effective 2026-04-30 through 2026-05-20
Daily 06:05 Cincinnati (CVG) 08:10 Newark Liberty, New York (EWR) C
UA 3423 Non-stop Embraer EMB 175 (E7W) 2:05 Effective 2026-03-29 through 2026-04-29
Thu-Sat 06:25 Cincinnati (CVG) 08:29 Newark Liberty, New York (EWR) C
UA 3423 Non-stop Embraer EMB 175 (E7W) 2:04 Effective 2026-03-05 through 2026-03-07
Daily 06:26 Cincinnati (CVG) 08:30 Newark Liberty, New York (EWR) C
UA 3423 Non-stop Embraer EMB 175 (E7W) 2:04 Effective 2026-03-08 through 2026-03-28
Thu 06:30 Chattanooga (CHA) 07:39 Chicago O'Hare (ORD) 2
UA 3423 Non-stop Embraer EMB 175 (E7W) 2:09 Operates only on 2026-02-12
Daily 07:00 Ronald Reagan Washington (DCA) 2 08:24 Newark Liberty, New York (EWR) C
UA 3423 Non-stop Embraer EMB 175 (E7W) 1:24 Effective 2026-02-13 through 2026-03-04
Daily 09:00 Newark Liberty, New York (EWR) C 10:42 Bangor (BGR)
UA 3423 Non-stop Embraer EMB 175 (E7W) 1:42 Effective 2026-03-29 through 2026-04-29
Daily 09:13 Newark Liberty, New York (EWR) C 11:02 Quebec (YQB)
UA 3423 Non-stop Embraer EMB 175 (E7W) 1:49 Effective 2026-03-05 through 2026-03-28
Daily 09:45 Newark Liberty, New York (EWR) C 11:23 Bangor (BGR)
UA 3423 Non-stop Embraer EMB 175 (E7W) 1:38 Effective from 2026-05-21
Daily 10:23 Cleveland (CLE) 11:10 Chicago O'Hare (ORD) 2
UA 3423 Non-stop Embraer EMB 175 (E7W) 1:47 Effective 2026-01-06 through 2026-02-03
Daily 10:23 Cleveland (CLE) 11:10 Chicago O'Hare (ORD) 2
UA 3423 Non-stop Embraer EMB 175 (E7W) 1:47 Effective 2026-02-05 through 2026-02-11
Wed 10:30 Cleveland (CLE) 11:17 Chicago O'Hare (ORD) 2
UA 3423 Non-stop Embraer EMB 175 (E7W) 1:47 Operates only on 2026-02-04
Daily 17:55 Washington Dulles (IAD) 19:06 Nashville (BNA)
UA 3423 Non-stop Embraer EMB 175 (E7W) 2:11 Valid until 2026-01-05
Non-Direct Flights:
Daily 06:00 Cincinnati (CVG) 11:23 Bangor (BGR)
UA 3423 1-stop Embraer EMB 175 (E7W) 5:23 Effective from 2026-05-21
Daily 06:05 Cincinnati (CVG) 10:42 Bangor (BGR)
UA 3423 1-stop Embraer EMB 175 (E7W) 4:37 Effective 2026-03-29 through 2026-04-29
Thu-Sat 06:25 Cincinnati (CVG) 11:02 Quebec (YQB)
UA 3423 1-stop Embraer EMB 175 (E7W) 4:37 Effective 2026-03-05 through 2026-03-07
Daily 06:26 Cincinnati (CVG) 11:02 Quebec (YQB)
UA 3423 1-stop Embraer EMB 175 (E7W) 4:36 Effective 2026-03-08 through 2026-03-28
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This flight number is listed as serving the following routes:


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United Airlines flight UA 3423: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA3423
06:00
Cincinnati (CVG)

07:48
Newark Liberty, New York (EWR) C
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:48, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3423
06:02
Cincinnati (CVG)

08:07
Newark Liberty, New York (EWR) C
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:05, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3423
06:05
Cincinnati (CVG)

08:10
Newark Liberty, New York (EWR) C
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:05, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3423
06:25
Cincinnati (CVG)

08:29
Newark Liberty, New York (EWR) C
Effective 2026-03-05 through 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
Sun
-
Duration: 2:04, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3423
06:26
Cincinnati (CVG)

08:30
Newark Liberty, New York (EWR) C
Effective 2026-03-08 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:04, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3423
06:30
Chattanooga (CHA)

07:39
Chicago O'Hare (ORD) 2
Operates only on 2026-02-12
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:09, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3423
07:00
Ronald Reagan Washington (DCA) 2

08:24
Newark Liberty, New York (EWR) C
Effective 2026-02-13 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:24, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3423
09:00
Newark Liberty, New York (EWR) C

10:42
Bangor (BGR)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:42, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3423
09:13
Newark Liberty, New York (EWR) C

11:02
Quebec (YQB)
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:49, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3423
09:45
Newark Liberty, New York (EWR) C

11:23
Bangor (BGR)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:38, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3423
10:23
Cleveland (CLE)

11:10
Chicago O'Hare (ORD) 2
Effective 2026-01-06 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:47, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3423
10:23
Cleveland (CLE)

11:10
Chicago O'Hare (ORD) 2
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:47, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3423
10:30
Cleveland (CLE)

11:17
Chicago O'Hare (ORD) 2
Operates only on 2026-02-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:47, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3423
17:55
Washington Dulles (IAD)

19:06
Nashville (BNA)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:11, non-stop
Embraer EMB 175 (E7W)
Non-Direct Flights:
United Airlines UA3423
06:00
Cincinnati (CVG)

11:23
Bangor (BGR)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:23, 1-stop
Embraer EMB 175 (E7W)
Non-Direct Flights:
United Airlines UA3423
06:05
Cincinnati (CVG)

10:42
Bangor (BGR)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:37, 1-stop
Embraer EMB 175 (E7W)
Non-Direct Flights:
United Airlines UA3423
06:25
Cincinnati (CVG)

11:02
Quebec (YQB)
Effective 2026-03-05 through 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
Sun
-
Duration: 4:37, 1-stop
Embraer EMB 175 (E7W)
Non-Direct Flights:
United Airlines UA3423
06:26
Cincinnati (CVG)

11:02
Quebec (YQB)
Effective 2026-03-08 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:36, 1-stop
Embraer EMB 175 (E7W)
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This flight number is listed as serving the following routes:
  • Chattanooga (CHA) - Chicago O'Hare (ORD)
  • Cincinnati (CVG) - Bangor (BGR)
  • Cincinnati (CVG) - Newark Liberty, New York (EWR)
  • Cincinnati (CVG) - Quebec (YQB)
  • Cleveland (CLE) - Chicago O'Hare (ORD)
  • Newark Liberty, New York (EWR) - Bangor (BGR)
  • Newark Liberty, New York (EWR) - Quebec (YQB)
  • Ronald Reagan Washington (DCA) - Newark Liberty, New York (EWR)
  • Washington Dulles (IAD) - Nashville (BNA)
All United Airlines flights
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