United Airlines flight UA 1734: Boston Logan - Los Angeles via Washington Dulles

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 05:20 Boston Logan (BOS) B 07:06 Washington Dulles (IAD)
UA 1734 Non-stop Boeing 737-900 (739) 1:46 Valid until 2026-01-05
Tue 05:20 Boston Logan (BOS) B 07:06 Washington Dulles (IAD)
UA 1734 Non-stop Airbus A320 (320) 1:46 Operates only on 2026-01-06
Sun 05:30 Boston Logan (BOS) B 07:14 Washington Dulles (IAD)
UA 1734 Non-stop Boeing 737 MAX 9 (7M9) 1:44 Effective 2026-02-15 through 2026-03-01
Mon-Sat 05:35 Boston Logan (BOS) B 07:19 Washington Dulles (IAD)
UA 1734 Non-stop Boeing 737 MAX 9 (7M9) 1:44 Effective 2026-02-12 through 2026-03-04
Thu 05:45 Boston Logan (BOS) B 07:31 Washington Dulles (IAD)
UA 1734 Non-stop Boeing 737-900 (739) 1:46 Effective 2026-01-08 through 2026-02-05
Mon,Fri,Sun 05:45 Boston Logan (BOS) B 07:31 Washington Dulles (IAD)
UA 1734 Non-stop Boeing 737-800 (738) 1:46 Effective 2026-01-09 through 2026-01-16
Mon,Fri,Sun 05:45 Boston Logan (BOS) B 07:31 Washington Dulles (IAD)
UA 1734 Non-stop Boeing 737-800 (738) 1:46 Effective 2026-01-19 through 2026-02-09
Wed-Fri,Sun 05:45 Boston Logan (BOS) B 07:29 Washington Dulles (IAD)
UA 1734 Non-stop Boeing 737 MAX 9 (7M9) 1:44 Effective 2026-03-05 through 2026-03-27
Mon,Sat 05:45 Boston Logan (BOS) B 07:29 Washington Dulles (IAD)
UA 1734 Non-stop Boeing 737 MAX 8 (7M8) 1:44 Effective 2026-03-07 through 2026-03-28
Daily 05:45 Boston Logan (BOS) B 07:24 Washington Dulles (IAD)
UA 1734 Non-stop Boeing 737 MAX 8 (7M8) 1:39 Effective 2026-03-29 through 2026-04-29
Daily 06:00 Boston Logan (BOS) B 07:34 Washington Dulles (IAD)
UA 1734 Non-stop Boeing 737 MAX 9 (7M9) 1:34 Effective 2026-04-30 through 2026-05-20
Daily 06:00 Boston Logan (BOS) B 07:34 Washington Dulles (IAD)
UA 1734 Non-stop Boeing 737-800 (738) 1:34 Effective from 2026-05-21
Sun 08:15 Washington Dulles (IAD) 11:13 Los Angeles (LAX) 7
UA 1734 Non-stop Boeing 737 MAX 9 (7M9) 5:58 Effective 2026-02-15 through 2026-03-01
Tue 08:25 Washington Dulles (IAD) 11:08 Los Angeles (LAX) 7
UA 1734 Non-stop Boeing 787-9 (789) 5:43 Operates only on 2026-01-06
Daily 08:25 Washington Dulles (IAD) 11:25 Los Angeles (LAX) 7
UA 1734 Non-stop Boeing 757-300 (753) 6:00 Effective 2026-01-07 through 2026-02-03
Daily 08:25 Washington Dulles (IAD) 11:25 Los Angeles (LAX) 7
UA 1734 Non-stop Boeing 757-300 (753) 6:00 Effective 2026-02-05 through 2026-02-11
Daily 08:30 Washington Dulles (IAD) 11:20 Los Angeles (LAX) 7
UA 1734 Non-stop Boeing 757-300 (753) 5:50 Effective from 2026-05-21
Mon,Thu-Sat 08:35 Washington Dulles (IAD) 11:33 Los Angeles (LAX) 7
UA 1734 Non-stop Boeing 737 MAX 9 (7M9) 5:58 Effective 2026-02-12 through 2026-02-20
Tue,Sat 08:35 Washington Dulles (IAD) 11:33 Los Angeles (LAX) 7
UA 1734 Non-stop Boeing 737-900 (739) 5:58 Effective 2026-02-17 through 2026-03-03
Wed 08:35 Washington Dulles (IAD) 11:32 Los Angeles (LAX) 7
UA 1734 Non-stop Boeing 757-200 (752) 5:57 Effective 2026-02-18 through 2026-03-04
Mon,Thu,Fri 08:35 Washington Dulles (IAD) 11:33 Los Angeles (LAX) 7
UA 1734 Non-stop Boeing 737 MAX 9 (7M9) 5:58 Effective 2026-02-23 through 2026-03-02
Daily 08:45 Washington Dulles (IAD) 11:46 Los Angeles (LAX) 7
UA 1734 Non-stop Boeing 737 MAX 9 (7M9) 6:01 Valid until 2026-01-05
Daily 08:46 Washington Dulles (IAD) 11:40 Los Angeles (LAX) 7
UA 1734 Non-stop Boeing 757-300 (753) 5:54 Effective 2026-03-05 through 2026-03-28
Daily 08:50 Washington Dulles (IAD) 11:37 Los Angeles (LAX) 7
UA 1734 Non-stop Boeing 757-300 (753) 5:47 Effective 2026-03-29 through 2026-05-20
Non-Direct Flights:
Daily 05:20 Boston Logan (BOS) B 11:46 Los Angeles (LAX) 7
UA 1734 1-stop Boeing 737-900 (739) 9:26 Valid until 2026-01-05
Tue 05:20 Boston Logan (BOS) B 11:08 Los Angeles (LAX) 7
UA 1734 1-stop Airbus A320 (320) 8:48 Operates only on 2026-01-06
Sun 05:30 Boston Logan (BOS) B 11:13 Los Angeles (LAX) 7
UA 1734 1-stop Boeing 737 MAX 9 (7M9) 8:43 Effective 2026-02-15 through 2026-03-01
Mon,Tue,Thu-Sat 05:35 Boston Logan (BOS) B 11:33 Los Angeles (LAX) 7
UA 1734 1-stop Boeing 737 MAX 9 (7M9) 8:58 Effective 2026-02-12 through 2026-03-03
Wed 05:35 Boston Logan (BOS) B 11:32 Los Angeles (LAX) 7
UA 1734 1-stop Boeing 737 MAX 9 (7M9) 8:57 Effective 2026-02-18 through 2026-03-04
Thu 05:45 Boston Logan (BOS) B 11:25 Los Angeles (LAX) 7
UA 1734 1-stop Boeing 737-900 (739) 8:40 Effective 2026-01-08 through 2026-02-05
Mon,Fri,Sun 05:45 Boston Logan (BOS) B 11:25 Los Angeles (LAX) 7
UA 1734 1-stop Boeing 737-800 (738) 8:40 Effective 2026-01-09 through 2026-01-16
Mon,Fri,Sun 05:45 Boston Logan (BOS) B 11:25 Los Angeles (LAX) 7
UA 1734 1-stop Boeing 737-800 (738) 8:40 Effective 2026-01-19 through 2026-02-09
Wed-Fri,Sun 05:45 Boston Logan (BOS) B 11:40 Los Angeles (LAX) 7
UA 1734 1-stop Boeing 737 MAX 9 (7M9) 8:55 Effective 2026-03-05 through 2026-03-27
Mon,Sat 05:45 Boston Logan (BOS) B 11:40 Los Angeles (LAX) 7
UA 1734 1-stop Boeing 737 MAX 8 (7M8) 8:55 Effective 2026-03-07 through 2026-03-28
Daily 05:45 Boston Logan (BOS) B 11:37 Los Angeles (LAX) 7
UA 1734 1-stop Boeing 737 MAX 8 (7M8) 8:52 Effective 2026-03-29 through 2026-04-29
Daily 06:00 Boston Logan (BOS) B 11:37 Los Angeles (LAX) 7
UA 1734 1-stop Boeing 737 MAX 9 (7M9) 8:37 Effective 2026-04-30 through 2026-05-20
Daily 06:00 Boston Logan (BOS) B 11:20 Los Angeles (LAX) 7
UA 1734 1-stop Boeing 737-800 (738) 8:20 Effective from 2026-05-21
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United Airlines flight UA 1734:
Boston Logan - Los Angeles via Washington Dulles
Ad mobi flat here (320x100px) 6074960173 M FlightWNum Top Flat
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA1734
05:20
Boston Logan (BOS) B

07:06
Washington Dulles (IAD)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:46, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1734
05:20
Boston Logan (BOS) B

07:06
Washington Dulles (IAD)
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:46, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA1734
05:30
Boston Logan (BOS) B

07:14
Washington Dulles (IAD)
Effective 2026-02-15 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:44, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA1734
05:35
Boston Logan (BOS) B

07:19
Washington Dulles (IAD)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 1:44, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA1734
05:45
Boston Logan (BOS) B

07:31
Washington Dulles (IAD)
Effective 2026-01-08 through 2026-02-05
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:46, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1734
05:45
Boston Logan (BOS) B

07:31
Washington Dulles (IAD)
Effective 2026-01-09 through 2026-01-16
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:46, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA1734
05:45
Boston Logan (BOS) B

07:31
Washington Dulles (IAD)
Effective 2026-01-19 through 2026-02-09
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:46, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA1734
05:45
Boston Logan (BOS) B

07:29
Washington Dulles (IAD)
Effective 2026-03-05 through 2026-03-27
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:44, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA1734
05:45
Boston Logan (BOS) B

07:29
Washington Dulles (IAD)
Effective 2026-03-07 through 2026-03-28
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:44, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1734
05:45
Boston Logan (BOS) B

07:24
Washington Dulles (IAD)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:39, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1734
06:00
Boston Logan (BOS) B

07:34
Washington Dulles (IAD)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:34, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA1734
06:00
Boston Logan (BOS) B

07:34
Washington Dulles (IAD)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:34, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA1734
08:15
Washington Dulles (IAD)

11:13
Los Angeles (LAX) 7
Effective 2026-02-15 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:58, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA1734
08:25
Washington Dulles (IAD)

11:08
Los Angeles (LAX) 7
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:43, non-stop
Boeing 787-9 (789)
Direct Flights:
United Airlines UA1734
08:25
Washington Dulles (IAD)

11:25
Los Angeles (LAX) 7
Effective 2026-01-07 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:00, non-stop
Boeing 757-300 (753)
Direct Flights:
United Airlines UA1734
08:25
Washington Dulles (IAD)

11:25
Los Angeles (LAX) 7
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:00, non-stop
Boeing 757-300 (753)
Direct Flights:
United Airlines UA1734
08:30
Washington Dulles (IAD)

11:20
Los Angeles (LAX) 7
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:50, non-stop
Boeing 757-300 (753)
Direct Flights:
United Airlines UA1734
08:35
Washington Dulles (IAD)

11:33
Los Angeles (LAX) 7
Effective 2026-02-12 through 2026-02-20
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
-
Duration: 5:58, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA1734
08:35
Washington Dulles (IAD)

11:33
Los Angeles (LAX) 7
Effective 2026-02-17 through 2026-03-03
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:58, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1734
08:35
Washington Dulles (IAD)

11:32
Los Angeles (LAX) 7
Effective 2026-02-18 through 2026-03-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:57, non-stop
Boeing 757-200 (752)
Direct Flights:
United Airlines UA1734
08:35
Washington Dulles (IAD)

11:33
Los Angeles (LAX) 7
Effective 2026-02-23 through 2026-03-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 5:58, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA1734
08:45
Washington Dulles (IAD)

11:46
Los Angeles (LAX) 7
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:01, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA1734
08:46
Washington Dulles (IAD)

11:40
Los Angeles (LAX) 7
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:54, non-stop
Boeing 757-300 (753)
Direct Flights:
United Airlines UA1734
08:50
Washington Dulles (IAD)

11:37
Los Angeles (LAX) 7
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:47, non-stop
Boeing 757-300 (753)
Non-Direct Flights:
United Airlines UA1734
05:20
Boston Logan (BOS) B

11:46
Los Angeles (LAX) 7
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 9:26, 1-stop
Boeing 737-900 (739)
Non-Direct Flights:
United Airlines UA1734
05:20
Boston Logan (BOS) B

11:08
Los Angeles (LAX) 7
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 8:48, 1-stop
Airbus A320 (320)
Non-Direct Flights:
United Airlines UA1734
05:30
Boston Logan (BOS) B

11:13
Los Angeles (LAX) 7
Effective 2026-02-15 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 8:43, 1-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA1734
05:35
Boston Logan (BOS) B

11:33
Los Angeles (LAX) 7
Effective 2026-02-12 through 2026-03-03
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
-
Duration: 8:58, 1-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA1734
05:35
Boston Logan (BOS) B

11:32
Los Angeles (LAX) 7
Effective 2026-02-18 through 2026-03-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 8:57, 1-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA1734
05:45
Boston Logan (BOS) B

11:25
Los Angeles (LAX) 7
Effective 2026-01-08 through 2026-02-05
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 8:40, 1-stop
Boeing 737-900 (739)
Non-Direct Flights:
United Airlines UA1734
05:45
Boston Logan (BOS) B

11:25
Los Angeles (LAX) 7
Effective 2026-01-09 through 2026-01-16
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 8:40, 1-stop
Boeing 737-800 (738)
Non-Direct Flights:
United Airlines UA1734
05:45
Boston Logan (BOS) B

11:25
Los Angeles (LAX) 7
Effective 2026-01-19 through 2026-02-09
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 8:40, 1-stop
Boeing 737-800 (738)
Non-Direct Flights:
United Airlines UA1734
05:45
Boston Logan (BOS) B

11:40
Los Angeles (LAX) 7
Effective 2026-03-05 through 2026-03-27
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 8:55, 1-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA1734
05:45
Boston Logan (BOS) B

11:40
Los Angeles (LAX) 7
Effective 2026-03-07 through 2026-03-28
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 8:55, 1-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
United Airlines UA1734
05:45
Boston Logan (BOS) B

11:37
Los Angeles (LAX) 7
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:52, 1-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
United Airlines UA1734
06:00
Boston Logan (BOS) B

11:37
Los Angeles (LAX) 7
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:37, 1-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA1734
06:00
Boston Logan (BOS) B

11:20
Los Angeles (LAX) 7
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:20, 1-stop
Boeing 737-800 (738)
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  • UA 1734 is a domestic flight departing from the Boston Logan airport (BOS) and arriving at Los Angeles airport (LAX).
  • The flight runs via Washington Dulles (IAD).
  • The flight distance is 2603 miles, or 4190 km.
  • The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-8 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
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