United Airlines flight UA 2104: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 07:10 Chicago O'Hare (ORD) 1 10:33 Boston Logan (BOS) B
UA 2104 Non-stop Boeing 737 MAX 9 (7M9) 2:23 Effective 2026-03-29 through 2026-04-29
Daily 07:10 Chicago O'Hare (ORD) 1 10:33 Boston Logan (BOS) B
UA 2104 Non-stop Boeing 737 MAX 9 (7M9) 2:23 Effective 2026-05-21 through 2026-10-24
Daily 07:30 Chicago O'Hare (ORD) 1 10:53 Boston Logan (BOS) B
UA 2104 Non-stop Boeing 737 MAX 9 (7M9) 2:23 Effective from 2026-10-25
Mon 07:35 San Jose (SJC) A 09:03 Las Vegas Harry Reid (LAS) 3
UA 2104 Non-stop Boeing 737-800 (738) 1:28 Operates only on 2026-01-05
Daily 12:30 Boston Logan (BOS) B 14:08 Newark Liberty, New York (EWR) C
UA 2104 Non-stop Boeing 737-700 (73G) 1:38 Effective from 2026-04-30
Sun 13:55 Savannah (SAV) 15:59 Newark Liberty, New York (EWR) A
UA 2104 Non-stop Airbus A319 (319) 2:04 Effective 2026-01-11 through 2026-02-08
Mon-Fri 14:05 Savannah (SAV) 16:13 Newark Liberty, New York (EWR) A
UA 2104 Non-stop Airbus A319 (319) 2:08 Effective 2026-01-06 through 2026-02-11
Daily 16:18 Knoxville (TYS) 17:59 Denver (DEN)
UA 2104 Non-stop Airbus A319 (319) 3:41 Effective 2026-03-05 through 2026-03-28
Mon-Fri 16:59 Newark Liberty, New York (EWR) C 20:17 Santa Ana (SNA)
UA 2104 Non-stop Boeing 737-700 (73G) 6:18 Effective 2026-01-06 through 2026-02-02
Sat 16:59 Newark Liberty, New York (EWR) A 20:17 Santa Ana (SNA)
UA 2104 Non-stop Boeing 737-700 (73G) 6:18 Effective 2026-01-10 through 2026-02-07
Mon-Fri 16:59 Newark Liberty, New York (EWR) C 20:17 Santa Ana (SNA)
UA 2104 Non-stop Boeing 737-700 (73G) 6:18 Effective 2026-02-04 through 2026-02-11
Tue 17:00 Newark Liberty, New York (EWR) C 20:14 Santa Ana (SNA)
UA 2104 Non-stop Boeing 737-700 (73G) 6:14 Operates only on 2026-02-03
Sun 17:05 Newark Liberty, New York (EWR) C 20:23 Santa Ana (SNA)
UA 2104 Non-stop Boeing 737-700 (73G) 6:18 Effective 2026-01-11 through 2026-02-08
Daily 17:29 Newark Liberty, New York (EWR) C 20:43 Portland (PDX)
UA 2104 Non-stop Boeing 737 MAX 8 (7M8) 6:14 Effective 2026-02-12 through 2026-03-04
Mon,Tue,Thu-Sun 23:59 Denver (DEN) 05:32 Philadelphia (PHL) D
UA 2104 Non-stop Boeing 737-800 (738) 3:33 Valid until 2026-01-04
The flight arrives 1 day after departure.
Non-Direct Flights:
Daily 07:10 Chicago O'Hare (ORD) 1 14:08 Newark Liberty, New York (EWR) C
UA 2104 1-stop Boeing 737 MAX 9 (7M9) 5:58 Effective 2026-05-21 through 2026-10-24
Daily 07:30 Chicago O'Hare (ORD) 1 14:08 Newark Liberty, New York (EWR) C
UA 2104 1-stop Boeing 737 MAX 9 (7M9) 5:38 Effective from 2026-10-25
Sun 13:55 Savannah (SAV) 20:23 Santa Ana (SNA)
UA 2104 1-stop Airbus A319 (319) 9:28 Effective 2026-01-11 through 2026-02-08
Mon-Fri 14:05 Savannah (SAV) 20:17 Santa Ana (SNA)
UA 2104 1-stop Airbus A319 (319) 9:12 Effective 2026-01-06 through 2026-02-02
Tue 14:05 Savannah (SAV) 20:14 Santa Ana (SNA)
UA 2104 1-stop Airbus A319 (319) 9:09 Operates only on 2026-02-03
Mon-Fri 14:05 Savannah (SAV) 20:17 Santa Ana (SNA)
UA 2104 1-stop Airbus A319 (319) 9:12 Effective 2026-02-04 through 2026-02-11
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This flight number is listed as serving the following routes:


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United Airlines flight UA 2104: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA2104
07:10
Chicago O'Hare (ORD) 1

10:33
Boston Logan (BOS) B
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:23, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA2104
07:10
Chicago O'Hare (ORD) 1

10:33
Boston Logan (BOS) B
Effective 2026-05-21 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:23, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA2104
07:30
Chicago O'Hare (ORD) 1

10:53
Boston Logan (BOS) B
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:23, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA2104
07:35
San Jose (SJC) A

09:03
Las Vegas Harry Reid (LAS) 3
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:28, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA2104
12:30
Boston Logan (BOS) B

14:08
Newark Liberty, New York (EWR) C
Effective from 2026-04-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:38, non-stop
Boeing 737-700 (73G)
Direct Flights:
United Airlines UA2104
13:55
Savannah (SAV)

15:59
Newark Liberty, New York (EWR) A
Effective 2026-01-11 through 2026-02-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:04, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA2104
14:05
Savannah (SAV)

16:13
Newark Liberty, New York (EWR) A
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:08, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA2104
16:18
Knoxville (TYS)

17:59
Denver (DEN)
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:41, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA2104
16:59
Newark Liberty, New York (EWR) C

20:17
Santa Ana (SNA)
Effective 2026-01-06 through 2026-02-02
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 6:18, non-stop
Boeing 737-700 (73G)
Direct Flights:
United Airlines UA2104
16:59
Newark Liberty, New York (EWR) A

20:17
Santa Ana (SNA)
Effective 2026-01-10 through 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 6:18, non-stop
Boeing 737-700 (73G)
Direct Flights:
United Airlines UA2104
16:59
Newark Liberty, New York (EWR) C

20:17
Santa Ana (SNA)
Effective 2026-02-04 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 6:18, non-stop
Boeing 737-700 (73G)
Direct Flights:
United Airlines UA2104
17:00
Newark Liberty, New York (EWR) C

20:14
Santa Ana (SNA)
Operates only on 2026-02-03
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 6:14, non-stop
Boeing 737-700 (73G)
Direct Flights:
United Airlines UA2104
17:05
Newark Liberty, New York (EWR) C

20:23
Santa Ana (SNA)
Effective 2026-01-11 through 2026-02-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 6:18, non-stop
Boeing 737-700 (73G)
Direct Flights:
United Airlines UA2104
17:29
Newark Liberty, New York (EWR) C

20:43
Portland (PDX)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:14, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA2104
23:59
Denver (DEN)

05:32(+1)
Philadelphia (PHL) D
Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Duration: 3:33, non-stop
Boeing 737-800 (738)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA2104
07:10
Chicago O'Hare (ORD) 1

14:08
Newark Liberty, New York (EWR) C
Effective 2026-05-21 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:58, 1-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA2104
07:30
Chicago O'Hare (ORD) 1

14:08
Newark Liberty, New York (EWR) C
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:38, 1-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA2104
13:55
Savannah (SAV)

20:23
Santa Ana (SNA)
Effective 2026-01-11 through 2026-02-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 9:28, 1-stop
Airbus A319 (319)
Non-Direct Flights:
United Airlines UA2104
14:05
Savannah (SAV)

20:17
Santa Ana (SNA)
Effective 2026-01-06 through 2026-02-02
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 9:12, 1-stop
Airbus A319 (319)
Non-Direct Flights:
United Airlines UA2104
14:05
Savannah (SAV)

20:14
Santa Ana (SNA)
Operates only on 2026-02-03
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 9:09, 1-stop
Airbus A319 (319)
Non-Direct Flights:
United Airlines UA2104
14:05
Savannah (SAV)

20:17
Santa Ana (SNA)
Effective 2026-02-04 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 9:12, 1-stop
Airbus A319 (319)
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This flight number is listed as serving the following routes:
  • Boston Logan (BOS) - Newark Liberty, New York (EWR)
  • Chicago O'Hare (ORD) - Boston Logan (BOS)
  • Chicago O'Hare (ORD) - Newark Liberty, New York (EWR)
  • Denver (DEN) - Philadelphia (PHL)
  • Knoxville (TYS) - Denver (DEN)
  • Newark Liberty, New York (EWR) - Portland (PDX)
  • Newark Liberty, New York (EWR) - Santa Ana (SNA)
  • San Jose (SJC) - Las Vegas Harry Reid (LAS)
  • Savannah (SAV) - Newark Liberty, New York (EWR)
  • Savannah (SAV) - Santa Ana (SNA)
All United Airlines flights
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