United Airlines flight UA 504: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Tue 06:00 Chicago O'Hare (ORD) 1 07:45 Denver (DEN)
UA 504 Non-stop Boeing 737-900 (739) 2:45 Operates only on 2026-01-06
Mon-Fri,Sun 09:00 Los Angeles (LAX) 7 16:53 Baltimore (BWI)
UA 504 Non-stop Boeing 737-800 (738) 4:53 Effective 2026-02-12 through 2026-03-04
Sat 09:01 Los Angeles (LAX) 7 16:54 Baltimore (BWI)
UA 504 Non-stop Boeing 737 MAX 9 (7M9) 4:53 Operates only on 2026-03-07
Sat 09:26 Los Angeles (LAX) 7 17:19 Baltimore (BWI)
UA 504 Non-stop Boeing 737 MAX 9 (7M9) 4:53 Effective 2026-03-14 through 2026-03-28
Mon,Tue,Thu,Fri,Sun 09:30 Los Angeles (LAX) 7 17:23 Baltimore (BWI)
UA 504 Non-stop Boeing 737 MAX 8 (7M8) 4:53 Effective 2026-03-05 through 2026-03-27
Mon,Thu-Sun 18:25 Baltimore (BWI) 21:49 San Francisco (SFO) 3
UA 504 Non-stop Boeing 737 MAX 8 (7M8) 6:24 Effective 2026-02-12 through 2026-03-02
Daily 18:31 Baltimore (BWI) 21:50 San Francisco (SFO) 3
UA 504 Non-stop Boeing 737 MAX 8 (7M8) 6:19 Effective 2026-03-05 through 2026-03-28
Daily 18:31 Baltimore (BWI) 21:25 San Francisco (SFO) 3
UA 504 Non-stop Boeing 737 MAX 8 (7M8) 5:54 Effective from 2026-03-29
Mon,Wed-Fri,Sun 18:34 Baltimore (BWI) 21:45 San Francisco (SFO) 3
UA 504 Non-stop Boeing 737 MAX 8 (7M8) 6:11 Effective 2026-01-07 through 2026-01-16
Sat 18:34 Baltimore (BWI) 21:45 San Francisco (SFO) 3
UA 504 Non-stop Boeing 737 MAX 9 (7M9) 6:11 Effective 2026-01-10 through 2026-01-17
Sun 18:34 Baltimore (BWI) 21:44 San Francisco (SFO) 3
UA 504 Non-stop Boeing 737 MAX 9 (7M9) 6:10 Operates only on 2026-01-18
Mon,Thu,Fri,Sun 18:34 Baltimore (BWI) 21:45 San Francisco (SFO) 3
UA 504 Non-stop Boeing 737 MAX 8 (7M8) 6:11 Effective 2026-01-19 through 2026-01-25
Wed,Sat 18:34 Baltimore (BWI) 21:45 San Francisco (SFO) 3
UA 504 Non-stop Boeing 737 MAX 9 (7M9) 6:11 Effective 2026-01-21 through 2026-01-24
Mon 18:34 Baltimore (BWI) 21:45 San Francisco (SFO) 3
UA 504 Non-stop Boeing 737-800 (738) 6:11 Effective 2026-01-26 through 2026-02-09
Wed 18:34 Baltimore (BWI) 21:48 San Francisco (SFO) 3
UA 504 Non-stop Airbus A319 (319) 6:14 Operates only on 2026-01-28
Thu,Fri,Sun 18:34 Baltimore (BWI) 21:45 San Francisco (SFO) 3
UA 504 Non-stop Boeing 737 MAX 8 (7M8) 6:11 Effective 2026-01-29 through 2026-02-08
Wed,Sat 18:34 Baltimore (BWI) 21:45 San Francisco (SFO) 3
UA 504 Non-stop Boeing 737 MAX 9 (7M9) 6:11 Effective 2026-01-31 through 2026-02-07
Wed 18:34 Baltimore (BWI) 21:45 San Francisco (SFO) 3
UA 504 Non-stop Boeing 737 MAX 8 (7M8) 6:11 Operates only on 2026-02-11
Daily 23:15 San Francisco (SFO) 3 00:57 Las Vegas Harry Reid (LAS) 3
UA 504 Non-stop Boeing 737 MAX 8 (7M8) 1:42 Valid until 2026-01-04
The flight arrives 1 day after departure.
Mon 23:15 San Francisco (SFO) 3 00:57 Las Vegas Harry Reid (LAS) 3
UA 504 Non-stop Boeing 737 MAX 9 (7M9) 1:42 Operates only on 2026-01-05
The flight arrives 1 day after departure.
Non-Direct Flights:
Mon,Thu,Fri,Sun 09:00 Los Angeles (LAX) 7 21:49 San Francisco (SFO) 3
UA 504 1-stop Boeing 737-800 (738) 12:49 Effective 2026-02-12 through 2026-03-02
Sat 09:01 Los Angeles (LAX) 7 21:50 San Francisco (SFO) 3
UA 504 1-stop Boeing 737 MAX 9 (7M9) 12:49 Operates only on 2026-03-07
Sat 09:26 Los Angeles (LAX) 7 21:50 San Francisco (SFO) 3
UA 504 1-stop Boeing 737 MAX 9 (7M9) 12:24 Effective 2026-03-14 through 2026-03-28
Mon,Tue,Thu,Fri,Sun 09:30 Los Angeles (LAX) 7 21:50 San Francisco (SFO) 3
UA 504 1-stop Boeing 737 MAX 8 (7M8) 12:20 Effective 2026-03-05 through 2026-03-27
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This flight number is listed as serving the following routes:


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United Airlines flight UA 504: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA504
06:00
Chicago O'Hare (ORD) 1

07:45
Denver (DEN)
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:45, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA504
09:00
Los Angeles (LAX) 7

16:53
Baltimore (BWI)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 4:53, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA504
09:01
Los Angeles (LAX) 7

16:54
Baltimore (BWI)
Operates only on 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:53, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA504
09:26
Los Angeles (LAX) 7

17:19
Baltimore (BWI)
Effective 2026-03-14 through 2026-03-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:53, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA504
09:30
Los Angeles (LAX) 7

17:23
Baltimore (BWI)
Effective 2026-03-05 through 2026-03-27
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:53, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA504
18:25
Baltimore (BWI)

21:49
San Francisco (SFO) 3
Effective 2026-02-12 through 2026-03-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
Duration: 6:24, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA504
18:31
Baltimore (BWI)

21:50
San Francisco (SFO) 3
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:19, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA504
18:31
Baltimore (BWI)

21:25
San Francisco (SFO) 3
Effective from 2026-03-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:54, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA504
18:34
Baltimore (BWI)

21:45
San Francisco (SFO) 3
Effective 2026-01-07 through 2026-01-16
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 6:11, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA504
18:34
Baltimore (BWI)

21:45
San Francisco (SFO) 3
Effective 2026-01-10 through 2026-01-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 6:11, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA504
18:34
Baltimore (BWI)

21:44
San Francisco (SFO) 3
Operates only on 2026-01-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 6:10, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA504
18:34
Baltimore (BWI)

21:45
San Francisco (SFO) 3
Effective 2026-01-19 through 2026-01-25
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 6:11, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA504
18:34
Baltimore (BWI)

21:45
San Francisco (SFO) 3
Effective 2026-01-21 through 2026-01-24
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
Sun
-
Duration: 6:11, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA504
18:34
Baltimore (BWI)

21:45
San Francisco (SFO) 3
Effective 2026-01-26 through 2026-02-09
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 6:11, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA504
18:34
Baltimore (BWI)

21:48
San Francisco (SFO) 3
Operates only on 2026-01-28
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 6:14, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA504
18:34
Baltimore (BWI)

21:45
San Francisco (SFO) 3
Effective 2026-01-29 through 2026-02-08
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 6:11, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA504
18:34
Baltimore (BWI)

21:45
San Francisco (SFO) 3
Effective 2026-01-31 through 2026-02-07
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
Sun
-
Duration: 6:11, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA504
18:34
Baltimore (BWI)

21:45
San Francisco (SFO) 3
Operates only on 2026-02-11
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 6:11, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA504
23:15
San Francisco (SFO) 3

00:57(+1)
Las Vegas Harry Reid (LAS) 3
Valid until 2026-01-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:42, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Flights:
United Airlines UA504
23:15
San Francisco (SFO) 3

00:57(+1)
Las Vegas Harry Reid (LAS) 3
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:42, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA504
09:00
Los Angeles (LAX) 7

21:49
San Francisco (SFO) 3
Effective 2026-02-12 through 2026-03-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 12:49, 1-stop
Boeing 737-800 (738)
Non-Direct Flights:
United Airlines UA504
09:01
Los Angeles (LAX) 7

21:50
San Francisco (SFO) 3
Operates only on 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 12:49, 1-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA504
09:26
Los Angeles (LAX) 7

21:50
San Francisco (SFO) 3
Effective 2026-03-14 through 2026-03-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 12:24, 1-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA504
09:30
Los Angeles (LAX) 7

21:50
San Francisco (SFO) 3
Effective 2026-03-05 through 2026-03-27
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 12:20, 1-stop
Boeing 737 MAX 8 (7M8)
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This flight number is listed as serving the following routes:
  • Baltimore (BWI) - San Francisco (SFO)
  • Chicago O'Hare (ORD) - Denver (DEN)
  • Los Angeles (LAX) - Baltimore (BWI)
  • Los Angeles (LAX) - San Francisco (SFO)
  • San Francisco (SFO) - Las Vegas Harry Reid (LAS)
All United Airlines flights
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