United Airlines flight UA 373: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 07:00 Honolulu (HNL) 2 15:12 San Francisco (SFO) 3
UA 373 Non-stop Boeing 757-300 (753) 5:12 Effective 2026-03-08 through 2026-03-28
Sun 07:00 Honolulu (HNL) 2 15:16 San Francisco (SFO) 3
UA 373 Non-stop Boeing 757-300 (753) 5:16 Operates only on 2026-03-29
Daily 07:00 Honolulu (HNL) 2 15:10 San Francisco (SFO) 3
UA 373 Non-stop Boeing 777 (777) 5:10 Effective 2026-03-30 through 2026-04-30
Daily 07:00 Honolulu (HNL) 2 15:19 San Francisco (SFO) 3
UA 373 Non-stop Boeing 737 MAX 9 (7M9) 5:19 Effective 2026-05-01 through 2026-05-20
Thu 07:00 Honolulu (HNL) 2 15:16 San Francisco (SFO) 3
UA 373 Non-stop Boeing 737 MAX 9 (7M9) 5:16 Operates only on 2026-05-21
Daily 07:00 Honolulu (HNL) 2 15:14 San Francisco (SFO) 3
UA 373 Non-stop Boeing 757-300 (753) 5:14 Effective 2026-05-22 through 2026-08-11
Daily 07:00 Honolulu (HNL) 2 15:15 San Francisco (SFO) 3
UA 373 Non-stop Boeing 757-300 (753) 5:15 Effective 2026-08-12 through 2026-09-24
Daily 07:00 Honolulu (HNL) 2 15:16 San Francisco (SFO) 3
UA 373 Non-stop Boeing 737 MAX 9 (7M9) 5:16 Effective 2026-09-25 through 2026-10-25
Mon-Sat 07:00 Honolulu (HNL) 2 15:14 San Francisco (SFO) 3
UA 373 Non-stop Boeing 757-300 (753) 5:14 Effective from 2026-10-26
Daily 08:00 Honolulu (HNL) 2 15:23 San Francisco (SFO) 3
UA 373 Non-stop Boeing 757-300 (753) 5:23 Valid until 2026-01-05
Daily 08:00 Honolulu (HNL) 2 15:16 San Francisco (SFO) 3
UA 373 Non-stop Boeing 757-300 (753) 5:16 Effective 2026-01-06 through 2026-02-11
Daily 08:00 Honolulu (HNL) 2 15:12 San Francisco (SFO) 3
UA 373 Non-stop Boeing 757-300 (753) 5:12 Effective 2026-02-12 through 2026-03-07
Wed 16:20 San Francisco (SFO) 3 17:43 Ontario, Los Angeles (ONT) 2
UA 373 Non-stop Airbus A319 (319) 1:23 Effective 2026-01-07 through 2026-01-28
Mon,Thu,Fri,Sun 16:20 San Francisco (SFO) 3 17:43 Ontario, Los Angeles (ONT) 2
UA 373 Non-stop Airbus A320 (320) 1:23 Effective 2026-01-08 through 2026-01-18
Mon 16:20 San Francisco (SFO) 3 17:43 Ontario, Los Angeles (ONT) 2
UA 373 Non-stop Boeing 737 MAX 9 (7M9) 1:23 Effective 2026-01-19 through 2026-01-26
Thu,Fri,Sun 16:20 San Francisco (SFO) 3 17:43 Ontario, Los Angeles (ONT) 2
UA 373 Non-stop Airbus A320 (320) 1:23 Effective 2026-01-22 through 2026-02-08
Mon,Tue 16:20 San Francisco (SFO) 3 17:43 Ontario, Los Angeles (ONT) 2
UA 373 Non-stop Boeing 737 MAX 9 (7M9) 1:23 Effective 2026-01-27 through 2026-02-02
Mon,Tue 16:20 San Francisco (SFO) 3 17:43 Ontario, Los Angeles (ONT) 2
UA 373 Non-stop Boeing 737 MAX 9 (7M9) 1:23 Effective 2026-02-09 through 2026-02-10
Wed 16:20 San Francisco (SFO) 3 17:43 Ontario, Los Angeles (ONT) 2
UA 373 Non-stop Airbus A319 (319) 1:23 Operates only on 2026-02-11
Daily 16:23 San Francisco (SFO) 3 19:26 Phoenix Sky Harbor (PHX) 3
UA 373 Non-stop Boeing 737-800 (738) 2:03 Effective 2026-02-12 through 2026-03-04
Wed 16:27 San Francisco (SFO) 3 17:50 Ontario, Los Angeles (ONT) 2
UA 373 Non-stop Airbus A319 (319) 1:23 Operates only on 2026-02-04
Tue 16:32 San Francisco (SFO) 3 17:55 Ontario, Los Angeles (ONT) 2
UA 373 Non-stop Boeing 737 MAX 9 (7M9) 1:23 Operates only on 2026-02-03
Daily 16:50 San Francisco (SFO) 3 22:37 Austin (AUS)
UA 373 Non-stop Airbus A320 (320) 3:47 Effective 2026-03-29 through 2026-04-29
Daily 16:50 San Francisco (SFO) 3 22:37 Austin (AUS)
UA 373 Non-stop Boeing 737 MAX 8 (7M8) 3:47 Effective 2026-04-30 through 2026-05-20
Daily 16:50 San Francisco (SFO) 3 22:37 Austin (AUS)
UA 373 Non-stop Airbus A320 (320) 3:47 Effective from 2026-05-21
Daily 17:11 San Francisco (SFO) 3 20:53 Denver (DEN)
UA 373 Non-stop Airbus A321neo (32Q) 2:42 Valid until 2026-01-04
Mon 17:11 San Francisco (SFO) 3 20:52 Denver (DEN)
UA 373 Non-stop Airbus A321neo (32Q) 2:41 Operates only on 2026-01-05
Non-Direct Flights:
Sun 07:00 Honolulu (HNL) 2 22:37 Austin (AUS)
UA 373 1-stop Boeing 757-300 (753) 10:37 Operates only on 2026-03-29
Daily 07:00 Honolulu (HNL) 2 22:37 Austin (AUS)
UA 373 1-stop Boeing 777 (777) 10:37 Effective 2026-03-30 through 2026-04-30
Daily 07:00 Honolulu (HNL) 2 22:37 Austin (AUS)
UA 373 1-stop Boeing 737 MAX 9 (7M9) 10:37 Effective 2026-05-01 through 2026-05-20
Thu 07:00 Honolulu (HNL) 2 22:37 Austin (AUS)
UA 373 1-stop Boeing 737 MAX 9 (7M9) 10:37 Operates only on 2026-05-21
Daily 07:00 Honolulu (HNL) 2 22:37 Austin (AUS)
UA 373 1-stop Boeing 757-300 (753) 10:37 Effective 2026-05-22 through 2026-08-11
Daily 07:00 Honolulu (HNL) 2 22:37 Austin (AUS)
UA 373 1-stop Boeing 757-300 (753) 10:37 Effective 2026-08-12 through 2026-09-24
Daily 07:00 Honolulu (HNL) 2 22:37 Austin (AUS)
UA 373 1-stop Boeing 737 MAX 9 (7M9) 10:37 Effective 2026-09-25 through 2026-10-25
Mon-Sat 07:00 Honolulu (HNL) 2 22:37 Austin (AUS)
UA 373 1-stop Boeing 757-300 (753) 10:37 Effective from 2026-10-26
Daily 08:00 Honolulu (HNL) 2 20:53 Denver (DEN)
UA 373 1-stop Boeing 757-300 (753) 9:53 Valid until 2026-01-04
Mon 08:00 Honolulu (HNL) 2 20:52 Denver (DEN)
UA 373 1-stop Boeing 757-300 (753) 9:52 Operates only on 2026-01-05
Mon,Wed-Fri,Sun 08:00 Honolulu (HNL) 2 17:43 Ontario, Los Angeles (ONT) 2
UA 373 1-stop Boeing 757-300 (753) 7:43 Effective 2026-01-07 through 2026-01-26
Mon-Fri,Sun 08:00 Honolulu (HNL) 2 17:43 Ontario, Los Angeles (ONT) 2
UA 373 1-stop Boeing 757-300 (753) 7:43 Effective 2026-01-27 through 2026-02-02
Tue 08:00 Honolulu (HNL) 2 17:55 Ontario, Los Angeles (ONT) 2
UA 373 1-stop Boeing 757-300 (753) 7:55 Operates only on 2026-02-03
Wed 08:00 Honolulu (HNL) 2 17:50 Ontario, Los Angeles (ONT) 2
UA 373 1-stop Boeing 757-300 (753) 7:50 Operates only on 2026-02-04
Mon-Fri,Sun 08:00 Honolulu (HNL) 2 17:43 Ontario, Los Angeles (ONT) 2
UA 373 1-stop Boeing 757-300 (753) 7:43 Effective 2026-02-05 through 2026-02-11
Daily 08:00 Honolulu (HNL) 2 19:26 Phoenix Sky Harbor (PHX) 3
UA 373 1-stop Boeing 757-300 (753) 8:26 Effective 2026-02-12 through 2026-03-04
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This flight number is listed as serving the following routes:


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United Airlines flight UA 373: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA373
07:00
Honolulu (HNL) 2

15:12
San Francisco (SFO) 3
Effective 2026-03-08 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:12, non-stop
Boeing 757-300 (753)
Direct Flights:
United Airlines UA373
07:00
Honolulu (HNL) 2

15:16
San Francisco (SFO) 3
Operates only on 2026-03-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:16, non-stop
Boeing 757-300 (753)
Direct Flights:
United Airlines UA373
07:00
Honolulu (HNL) 2

15:10
San Francisco (SFO) 3
Effective 2026-03-30 through 2026-04-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:10, non-stop
Boeing 777 (777)
Direct Flights:
United Airlines UA373
07:00
Honolulu (HNL) 2

15:19
San Francisco (SFO) 3
Effective 2026-05-01 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:19, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA373
07:00
Honolulu (HNL) 2

15:16
San Francisco (SFO) 3
Operates only on 2026-05-21
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 5:16, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA373
07:00
Honolulu (HNL) 2

15:14
San Francisco (SFO) 3
Effective 2026-05-22 through 2026-08-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:14, non-stop
Boeing 757-300 (753)
Direct Flights:
United Airlines UA373
07:00
Honolulu (HNL) 2

15:15
San Francisco (SFO) 3
Effective 2026-08-12 through 2026-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:15, non-stop
Boeing 757-300 (753)
Direct Flights:
United Airlines UA373
07:00
Honolulu (HNL) 2

15:16
San Francisco (SFO) 3
Effective 2026-09-25 through 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:16, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA373
07:00
Honolulu (HNL) 2

15:14
San Francisco (SFO) 3
Effective from 2026-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 5:14, non-stop
Boeing 757-300 (753)
Direct Flights:
United Airlines UA373
08:00
Honolulu (HNL) 2

15:23
San Francisco (SFO) 3
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:23, non-stop
Boeing 757-300 (753)
Direct Flights:
United Airlines UA373
08:00
Honolulu (HNL) 2

15:16
San Francisco (SFO) 3
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:16, non-stop
Boeing 757-300 (753)
Direct Flights:
United Airlines UA373
08:00
Honolulu (HNL) 2

15:12
San Francisco (SFO) 3
Effective 2026-02-12 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:12, non-stop
Boeing 757-300 (753)
Direct Flights:
United Airlines UA373
16:20
San Francisco (SFO) 3

17:43
Ontario, Los Angeles (ONT) 2
Effective 2026-01-07 through 2026-01-28
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:23, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA373
16:20
San Francisco (SFO) 3

17:43
Ontario, Los Angeles (ONT) 2
Effective 2026-01-08 through 2026-01-18
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:23, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA373
16:20
San Francisco (SFO) 3

17:43
Ontario, Los Angeles (ONT) 2
Effective 2026-01-19 through 2026-01-26
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:23, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA373
16:20
San Francisco (SFO) 3

17:43
Ontario, Los Angeles (ONT) 2
Effective 2026-01-22 through 2026-02-08
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:23, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA373
16:20
San Francisco (SFO) 3

17:43
Ontario, Los Angeles (ONT) 2
Effective 2026-01-27 through 2026-02-02
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:23, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA373
16:20
San Francisco (SFO) 3

17:43
Ontario, Los Angeles (ONT) 2
Effective 2026-02-09 through 2026-02-10
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:23, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA373
16:20
San Francisco (SFO) 3

17:43
Ontario, Los Angeles (ONT) 2
Operates only on 2026-02-11
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:23, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA373
16:23
San Francisco (SFO) 3

19:26
Phoenix Sky Harbor (PHX) 3
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:03, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA373
16:27
San Francisco (SFO) 3

17:50
Ontario, Los Angeles (ONT) 2
Operates only on 2026-02-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:23, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA373
16:32
San Francisco (SFO) 3

17:55
Ontario, Los Angeles (ONT) 2
Operates only on 2026-02-03
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:23, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA373
16:50
San Francisco (SFO) 3

22:37
Austin (AUS)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:47, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA373
16:50
San Francisco (SFO) 3

22:37
Austin (AUS)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:47, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA373
16:50
San Francisco (SFO) 3

22:37
Austin (AUS)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:47, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA373
17:11
San Francisco (SFO) 3

20:53
Denver (DEN)
Valid until 2026-01-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:42, non-stop
Airbus A321neo (32Q)
Direct Flights:
United Airlines UA373
17:11
San Francisco (SFO) 3

20:52
Denver (DEN)
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:41, non-stop
Airbus A321neo (32Q)
Non-Direct Flights:
United Airlines UA373
07:00
Honolulu (HNL) 2

22:37
Austin (AUS)
Operates only on 2026-03-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 10:37, 1-stop
Boeing 757-300 (753)
Non-Direct Flights:
United Airlines UA373
07:00
Honolulu (HNL) 2

22:37
Austin (AUS)
Effective 2026-03-30 through 2026-04-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:37, 1-stop
Boeing 777 (777)
Non-Direct Flights:
United Airlines UA373
07:00
Honolulu (HNL) 2

22:37
Austin (AUS)
Effective 2026-05-01 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:37, 1-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA373
07:00
Honolulu (HNL) 2

22:37
Austin (AUS)
Operates only on 2026-05-21
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 10:37, 1-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA373
07:00
Honolulu (HNL) 2

22:37
Austin (AUS)
Effective 2026-05-22 through 2026-08-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:37, 1-stop
Boeing 757-300 (753)
Non-Direct Flights:
United Airlines UA373
07:00
Honolulu (HNL) 2

22:37
Austin (AUS)
Effective 2026-08-12 through 2026-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:37, 1-stop
Boeing 757-300 (753)
Non-Direct Flights:
United Airlines UA373
07:00
Honolulu (HNL) 2

22:37
Austin (AUS)
Effective 2026-09-25 through 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:37, 1-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA373
07:00
Honolulu (HNL) 2

22:37
Austin (AUS)
Effective from 2026-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 10:37, 1-stop
Boeing 757-300 (753)
Non-Direct Flights:
United Airlines UA373
08:00
Honolulu (HNL) 2

20:53
Denver (DEN)
Valid until 2026-01-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 9:53, 1-stop
Boeing 757-300 (753)
Non-Direct Flights:
United Airlines UA373
08:00
Honolulu (HNL) 2

20:52
Denver (DEN)
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 9:52, 1-stop
Boeing 757-300 (753)
Non-Direct Flights:
United Airlines UA373
08:00
Honolulu (HNL) 2

17:43
Ontario, Los Angeles (ONT) 2
Effective 2026-01-07 through 2026-01-26
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 7:43, 1-stop
Boeing 757-300 (753)
Non-Direct Flights:
United Airlines UA373
08:00
Honolulu (HNL) 2

17:43
Ontario, Los Angeles (ONT) 2
Effective 2026-01-27 through 2026-02-02
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 7:43, 1-stop
Boeing 757-300 (753)
Non-Direct Flights:
United Airlines UA373
08:00
Honolulu (HNL) 2

17:55
Ontario, Los Angeles (ONT) 2
Operates only on 2026-02-03
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 7:55, 1-stop
Boeing 757-300 (753)
Non-Direct Flights:
United Airlines UA373
08:00
Honolulu (HNL) 2

17:50
Ontario, Los Angeles (ONT) 2
Operates only on 2026-02-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 7:50, 1-stop
Boeing 757-300 (753)
Non-Direct Flights:
United Airlines UA373
08:00
Honolulu (HNL) 2

17:43
Ontario, Los Angeles (ONT) 2
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 7:43, 1-stop
Boeing 757-300 (753)
Non-Direct Flights:
United Airlines UA373
08:00
Honolulu (HNL) 2

19:26
Phoenix Sky Harbor (PHX) 3
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:26, 1-stop
Boeing 757-300 (753)
Ad mobi box here (300x250px) 8888825773 M FlightWNum Bottom Box
Parallax here -
This flight number is listed as serving the following routes:
  • Honolulu (HNL) - Austin (AUS)
  • Honolulu (HNL) - Denver (DEN)
  • Honolulu (HNL) - Ontario, Los Angeles (ONT)
  • Honolulu (HNL) - Phoenix Sky Harbor (PHX)
  • Honolulu (HNL) - San Francisco (SFO)
  • San Francisco (SFO) - Austin (AUS)
  • San Francisco (SFO) - Denver (DEN)
  • San Francisco (SFO) - Ontario, Los Angeles (ONT)
  • San Francisco (SFO) - Phoenix Sky Harbor (PHX)
All United Airlines flights
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