United Airlines flight UA 1665: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sat 18:30 Santa Barbara (SBA) 19:47 San Francisco (SFO) 3
UA 1665 Non-stop Boeing 737-800 (738) 1:17 Valid until 2026-01-03
Tue-Sun 18:37 Ontario, Los Angeles (ONT) 2 20:10 San Francisco (SFO) 3
UA 1665 Non-stop Airbus A320 (320) 1:33 Effective 2026-03-05 through 2026-03-15
Mon 18:37 Ontario, Los Angeles (ONT) 2 20:10 San Francisco (SFO) 3
UA 1665 Non-stop Boeing 737-800 (738) 1:33 Operates only on 2026-03-09
Daily 18:37 Ontario, Los Angeles (ONT) 2 20:10 San Francisco (SFO) 3
UA 1665 Non-stop Airbus A320 (320) 1:33 Effective 2026-03-16 through 2026-03-27
Sat 18:37 Ontario, Los Angeles (ONT) 2 20:10 San Francisco (SFO) 3
UA 1665 Non-stop Boeing 737-800 (738) 1:33 Operates only on 2026-03-28
Daily 18:53 Ontario, Los Angeles (ONT) 2 20:22 San Francisco (SFO) 3
UA 1665 Non-stop Boeing 737 MAX 8 (7M8) 1:29 Effective 2026-03-29 through 2026-04-29
Daily 18:53 Ontario, Los Angeles (ONT) 2 20:22 San Francisco (SFO) 3
UA 1665 Non-stop Boeing 737 MAX 8 (7M8) 1:29 Effective from 2026-05-21
Daily 18:54 Ontario, Los Angeles (ONT) 2 20:23 San Francisco (SFO) 3
UA 1665 Non-stop Boeing 737-900 (739) 1:29 Effective 2026-04-30 through 2026-05-20
Sat 19:01 Atlanta (ATL) N 21:49 San Francisco (SFO) 3
UA 1665 Non-stop Boeing 737 MAX 9 (7M9) 5:48 Effective 2026-02-14 through 2026-02-28
Mon,Wed-Fri,Sun 19:02 Atlanta (ATL) N 21:50 San Francisco (SFO) 3
UA 1665 Non-stop Boeing 737 MAX 8 (7M8) 5:48 Effective 2026-02-12 through 2026-03-04
Wed 19:23 Seattle-Tacoma (SEA) 21:38 San Francisco (SFO) 3
UA 1665 Non-stop Airbus A320 (320) 2:15 Operates only on 2026-02-11
Mon,Wed-Fri,Sun 19:30 Seattle-Tacoma (SEA) 21:48 San Francisco (SFO) 3
UA 1665 Non-stop Boeing 737-800 (738) 2:18 Effective 2026-01-07 through 2026-01-16
Mon 19:30 Seattle-Tacoma (SEA) 21:48 San Francisco (SFO) 3
UA 1665 Non-stop Airbus A320 (320) 2:18 Effective 2026-01-19 through 2026-02-09
Wed-Fri,Sun 19:30 Seattle-Tacoma (SEA) 21:48 San Francisco (SFO) 3
UA 1665 Non-stop Boeing 737-800 (738) 2:18 Effective 2026-01-21 through 2026-01-25
Thu,Fri,Sun 19:30 Seattle-Tacoma (SEA) 21:48 San Francisco (SFO) 3
UA 1665 Non-stop Boeing 737-800 (738) 2:18 Effective 2026-01-29 through 2026-02-08
Wed 19:32 Seattle-Tacoma (SEA) 21:50 San Francisco (SFO) 3
UA 1665 Non-stop Boeing 737-900 (739) 2:18 Operates only on 2026-01-28
Mon,Tue,Fri,Sun 20:33 Santa Barbara (SBA) 21:50 San Francisco (SFO) 3
UA 1665 Non-stop Boeing 737-800 (738) 1:17 Valid until 2026-01-05
Daily 23:20 San Francisco (SFO) 3 07:58 Boston Logan (BOS) B
UA 1665 Non-stop Boeing 757-200 (752) 5:38 Effective 2026-02-12 through 2026-02-27
The flight arrives 1 day after departure.
Mon-Fri,Sun 23:20 San Francisco (SFO) 3 07:58 Boston Logan (BOS) B
UA 1665 Non-stop Boeing 757-200 (752) 5:38 Effective 2026-03-01 through 2026-03-06
The flight arrives 1 day after departure.
Sat 23:20 San Francisco (SFO) 3 08:58 Boston Logan (BOS) B
UA 1665 Non-stop Boeing 757-200 (752) 5:38 Operates only on 2026-03-07
The flight arrives 1 day after departure.
Daily 23:20 San Francisco (SFO) 3 08:23 Boston Logan (BOS) B
UA 1665 Non-stop Boeing 737-900 (739) 6:03 Effective 2026-03-29 through 2026-04-29
The flight arrives 1 day after departure.
Daily 23:20 San Francisco (SFO) 3 08:23 Boston Logan (BOS) B
UA 1665 Non-stop Boeing 737 MAX 9 (7M9) 6:03 Effective 2026-04-30 through 2026-05-20
The flight arrives 1 day after departure.
Daily 23:20 San Francisco (SFO) 3 08:18 Boston Logan (BOS) B
UA 1665 Non-stop Boeing 737 MAX 9 (7M9) 5:58 Effective 2026-05-21 through 2026-08-10
The flight arrives 1 day after departure.
Daily 23:20 San Francisco (SFO) 3 08:09 Boston Logan (BOS) B
UA 1665 Non-stop Boeing 737 MAX 9 (7M9) 5:49 Effective 2026-08-11 through 2026-09-23
The flight arrives 1 day after departure.
Daily 23:20 San Francisco (SFO) 3 08:23 Boston Logan (BOS) B
UA 1665 Non-stop Boeing 757-200 (752) 6:03 Effective from 2026-09-24
The flight arrives 1 day after departure.
Mon,Tue,Fri-Sun 23:25 San Francisco (SFO) 3 08:10 Boston Logan (BOS) B
UA 1665 Non-stop Boeing 737 MAX 9 (7M9) 5:45 Valid until 2026-01-04
The flight arrives 1 day after departure.
Mon,Thu-Sun 23:25 San Francisco (SFO) 3 08:10 Boston Logan (BOS) B
UA 1665 Non-stop Boeing 757-200 (752) 5:45 Effective 2026-01-05 through 2026-02-09
The flight arrives 1 day after departure.
Daily 23:35 San Francisco (SFO) 3 08:13 Boston Logan (BOS) B
UA 1665 Non-stop Boeing 757-200 (752) 5:38 Effective 2026-03-08 through 2026-03-28
The flight arrives 1 day after departure.
Non-Direct Flights:
Sat 18:30 Santa Barbara (SBA) 08:10 Boston Logan (BOS) B
UA 1665 1-stop Boeing 737-800 (738) 10:40 Valid until 2026-01-03
The flight arrives 1 day after departure.
Thu,Fri 18:37 Ontario, Los Angeles (ONT) 2 07:58 Boston Logan (BOS) B
UA 1665 1-stop Airbus A320 (320) 10:21 Effective 2026-03-05 through 2026-03-06
The flight arrives 1 day after departure.
Sat 18:37 Ontario, Los Angeles (ONT) 2 08:58 Boston Logan (BOS) B
UA 1665 1-stop Airbus A320 (320) 10:21 Operates only on 2026-03-07
The flight arrives 1 day after departure.
Tue-Sun 18:37 Ontario, Los Angeles (ONT) 2 08:13 Boston Logan (BOS) B
UA 1665 1-stop Airbus A320 (320) 10:36 Effective 2026-03-08 through 2026-03-15
The flight arrives 1 day after departure.
Mon 18:37 Ontario, Los Angeles (ONT) 2 08:13 Boston Logan (BOS) B
UA 1665 1-stop Boeing 737-800 (738) 10:36 Operates only on 2026-03-09
The flight arrives 1 day after departure.
Daily 18:37 Ontario, Los Angeles (ONT) 2 08:13 Boston Logan (BOS) B
UA 1665 1-stop Airbus A320 (320) 10:36 Effective 2026-03-16 through 2026-03-27
The flight arrives 1 day after departure.
Sat 18:37 Ontario, Los Angeles (ONT) 2 08:13 Boston Logan (BOS) B
UA 1665 1-stop Boeing 737-800 (738) 10:36 Operates only on 2026-03-28
The flight arrives 1 day after departure.
Daily 18:53 Ontario, Los Angeles (ONT) 2 08:23 Boston Logan (BOS) B
UA 1665 1-stop Boeing 737 MAX 8 (7M8) 10:30 Effective 2026-03-29 through 2026-04-29
The flight arrives 1 day after departure.
Daily 18:53 Ontario, Los Angeles (ONT) 2 08:18 Boston Logan (BOS) B
UA 1665 1-stop Boeing 737 MAX 8 (7M8) 10:25 Effective 2026-05-21 through 2026-08-10
The flight arrives 1 day after departure.
Daily 18:53 Ontario, Los Angeles (ONT) 2 08:09 Boston Logan (BOS) B
UA 1665 1-stop Boeing 737 MAX 8 (7M8) 10:16 Effective 2026-08-11 through 2026-09-23
The flight arrives 1 day after departure.
Daily 18:53 Ontario, Los Angeles (ONT) 2 08:23 Boston Logan (BOS) B
UA 1665 1-stop Boeing 737 MAX 8 (7M8) 10:30 Effective from 2026-09-24
The flight arrives 1 day after departure.
Daily 18:54 Ontario, Los Angeles (ONT) 2 08:23 Boston Logan (BOS) B
UA 1665 1-stop Boeing 737-900 (739) 10:29 Effective 2026-04-30 through 2026-05-20
The flight arrives 1 day after departure.
Sat 19:01 Atlanta (ATL) N 07:58 Boston Logan (BOS) B
UA 1665 1-stop Boeing 737 MAX 9 (7M9) 12:57 Effective 2026-02-14 through 2026-02-21
The flight arrives 1 day after departure.
Mon,Wed-Fri,Sun 19:02 Atlanta (ATL) N 07:58 Boston Logan (BOS) B
UA 1665 1-stop Boeing 737 MAX 8 (7M8) 12:56 Effective 2026-02-12 through 2026-03-04
The flight arrives 1 day after departure.
Mon,Thu,Fri,Sun 19:30 Seattle-Tacoma (SEA) 08:10 Boston Logan (BOS) B
UA 1665 1-stop Boeing 737-800 (738) 9:40 Effective 2026-01-08 through 2026-01-16
The flight arrives 1 day after departure.
Mon 19:30 Seattle-Tacoma (SEA) 08:10 Boston Logan (BOS) B
UA 1665 1-stop Airbus A320 (320) 9:40 Effective 2026-01-19 through 2026-02-09
The flight arrives 1 day after departure.
Thu,Fri,Sun 19:30 Seattle-Tacoma (SEA) 08:10 Boston Logan (BOS) B
UA 1665 1-stop Boeing 737-800 (738) 9:40 Effective 2026-01-22 through 2026-02-08
The flight arrives 1 day after departure.
Mon,Tue,Fri,Sun 20:33 Santa Barbara (SBA) 08:10 Boston Logan (BOS) B
UA 1665 1-stop Boeing 737-800 (738) 8:37 Valid until 2026-01-05
The flight arrives 1 day after departure.
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United Airlines flight UA 1665: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA1665
18:30
Santa Barbara (SBA)

19:47
San Francisco (SFO) 3
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:17, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA1665
18:37
Ontario, Los Angeles (ONT) 2

20:10
San Francisco (SFO) 3
Effective 2026-03-05 through 2026-03-15
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:33, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA1665
18:37
Ontario, Los Angeles (ONT) 2

20:10
San Francisco (SFO) 3
Operates only on 2026-03-09
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:33, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA1665
18:37
Ontario, Los Angeles (ONT) 2

20:10
San Francisco (SFO) 3
Effective 2026-03-16 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:33, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA1665
18:37
Ontario, Los Angeles (ONT) 2

20:10
San Francisco (SFO) 3
Operates only on 2026-03-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:33, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA1665
18:53
Ontario, Los Angeles (ONT) 2

20:22
San Francisco (SFO) 3
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:29, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1665
18:53
Ontario, Los Angeles (ONT) 2

20:22
San Francisco (SFO) 3
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:29, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1665
18:54
Ontario, Los Angeles (ONT) 2

20:23
San Francisco (SFO) 3
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:29, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1665
19:01
Atlanta (ATL) N

21:49
San Francisco (SFO) 3
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:48, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA1665
19:02
Atlanta (ATL) N

21:50
San Francisco (SFO) 3
Effective 2026-02-12 through 2026-03-04
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 5:48, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1665
19:23
Seattle-Tacoma (SEA)

21:38
San Francisco (SFO) 3
Operates only on 2026-02-11
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:15, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA1665
19:30
Seattle-Tacoma (SEA)

21:48
San Francisco (SFO) 3
Effective 2026-01-07 through 2026-01-16
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:18, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA1665
19:30
Seattle-Tacoma (SEA)

21:48
San Francisco (SFO) 3
Effective 2026-01-19 through 2026-02-09
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:18, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA1665
19:30
Seattle-Tacoma (SEA)

21:48
San Francisco (SFO) 3
Effective 2026-01-21 through 2026-01-25
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:18, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA1665
19:30
Seattle-Tacoma (SEA)

21:48
San Francisco (SFO) 3
Effective 2026-01-29 through 2026-02-08
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:18, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA1665
19:32
Seattle-Tacoma (SEA)

21:50
San Francisco (SFO) 3
Operates only on 2026-01-28
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:18, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1665
20:33
Santa Barbara (SBA)

21:50
San Francisco (SFO) 3
Valid until 2026-01-05
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:17, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA1665
23:20
San Francisco (SFO) 3

07:58(+1)
Boston Logan (BOS) B
Effective 2026-02-12 through 2026-02-27
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:38, non-stop
Boeing 757-200 (752)
The flight arrives 1 day after departure.
Direct Flights:
United Airlines UA1665
23:20
San Francisco (SFO) 3

07:58(+1)
Boston Logan (BOS) B
Effective 2026-03-01 through 2026-03-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 5:38, non-stop
Boeing 757-200 (752)
The flight arrives 1 day after departure.
Direct Flights:
United Airlines UA1665
23:20
San Francisco (SFO) 3

08:58(+1)
Boston Logan (BOS) B
Operates only on 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:38, non-stop
Boeing 757-200 (752)
The flight arrives 1 day after departure.
Direct Flights:
United Airlines UA1665
23:20
San Francisco (SFO) 3

08:23(+1)
Boston Logan (BOS) B
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:03, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
Direct Flights:
United Airlines UA1665
23:20
San Francisco (SFO) 3

08:23(+1)
Boston Logan (BOS) B
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:03, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Direct Flights:
United Airlines UA1665
23:20
San Francisco (SFO) 3

08:18(+1)
Boston Logan (BOS) B
Effective 2026-05-21 through 2026-08-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:58, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Direct Flights:
United Airlines UA1665
23:20
San Francisco (SFO) 3

08:09(+1)
Boston Logan (BOS) B
Effective 2026-08-11 through 2026-09-23
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:49, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Direct Flights:
United Airlines UA1665
23:20
San Francisco (SFO) 3

08:23(+1)
Boston Logan (BOS) B
Effective from 2026-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:03, non-stop
Boeing 757-200 (752)
The flight arrives 1 day after departure.
Direct Flights:
United Airlines UA1665
23:25
San Francisco (SFO) 3

08:10(+1)
Boston Logan (BOS) B
Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
Sun
Duration: 5:45, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Direct Flights:
United Airlines UA1665
23:25
San Francisco (SFO) 3

08:10(+1)
Boston Logan (BOS) B
Effective 2026-01-05 through 2026-02-09
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
Duration: 5:45, non-stop
Boeing 757-200 (752)
The flight arrives 1 day after departure.
Direct Flights:
United Airlines UA1665
23:35
San Francisco (SFO) 3

08:13(+1)
Boston Logan (BOS) B
Effective 2026-03-08 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:38, non-stop
Boeing 757-200 (752)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1665
18:30
Santa Barbara (SBA)

08:10(+1)
Boston Logan (BOS) B
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 10:40, 1-stop
Boeing 737-800 (738)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1665
18:37
Ontario, Los Angeles (ONT) 2

07:58(+1)
Boston Logan (BOS) B
Effective 2026-03-05 through 2026-03-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 10:21, 1-stop
Airbus A320 (320)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1665
18:37
Ontario, Los Angeles (ONT) 2

08:58(+1)
Boston Logan (BOS) B
Operates only on 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 10:21, 1-stop
Airbus A320 (320)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1665
18:37
Ontario, Los Angeles (ONT) 2

08:13(+1)
Boston Logan (BOS) B
Effective 2026-03-08 through 2026-03-15
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:36, 1-stop
Airbus A320 (320)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1665
18:37
Ontario, Los Angeles (ONT) 2

08:13(+1)
Boston Logan (BOS) B
Operates only on 2026-03-09
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 10:36, 1-stop
Boeing 737-800 (738)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1665
18:37
Ontario, Los Angeles (ONT) 2

08:13(+1)
Boston Logan (BOS) B
Effective 2026-03-16 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:36, 1-stop
Airbus A320 (320)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1665
18:37
Ontario, Los Angeles (ONT) 2

08:13(+1)
Boston Logan (BOS) B
Operates only on 2026-03-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 10:36, 1-stop
Boeing 737-800 (738)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1665
18:53
Ontario, Los Angeles (ONT) 2

08:23(+1)
Boston Logan (BOS) B
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:30, 1-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1665
18:53
Ontario, Los Angeles (ONT) 2

08:18(+1)
Boston Logan (BOS) B
Effective 2026-05-21 through 2026-08-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:25, 1-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1665
18:53
Ontario, Los Angeles (ONT) 2

08:09(+1)
Boston Logan (BOS) B
Effective 2026-08-11 through 2026-09-23
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:16, 1-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1665
18:53
Ontario, Los Angeles (ONT) 2

08:23(+1)
Boston Logan (BOS) B
Effective from 2026-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:30, 1-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1665
18:54
Ontario, Los Angeles (ONT) 2

08:23(+1)
Boston Logan (BOS) B
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:29, 1-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1665
19:01
Atlanta (ATL) N

07:58(+1)
Boston Logan (BOS) B
Effective 2026-02-14 through 2026-02-21
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 12:57, 1-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1665
19:02
Atlanta (ATL) N

07:58(+1)
Boston Logan (BOS) B
Effective 2026-02-12 through 2026-03-04
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 12:56, 1-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1665
19:30
Seattle-Tacoma (SEA)

08:10(+1)
Boston Logan (BOS) B
Effective 2026-01-08 through 2026-01-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 9:40, 1-stop
Boeing 737-800 (738)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1665
19:30
Seattle-Tacoma (SEA)

08:10(+1)
Boston Logan (BOS) B
Effective 2026-01-19 through 2026-02-09
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 9:40, 1-stop
Airbus A320 (320)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1665
19:30
Seattle-Tacoma (SEA)

08:10(+1)
Boston Logan (BOS) B
Effective 2026-01-22 through 2026-02-08
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 9:40, 1-stop
Boeing 737-800 (738)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1665
20:33
Santa Barbara (SBA)

08:10(+1)
Boston Logan (BOS) B
Valid until 2026-01-05
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 8:37, 1-stop
Boeing 737-800 (738)
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:
  • Atlanta (ATL) - Boston Logan (BOS)
  • Atlanta (ATL) - San Francisco (SFO)
  • Ontario, Los Angeles (ONT) - Boston Logan (BOS)
  • Ontario, Los Angeles (ONT) - San Francisco (SFO)
  • San Francisco (SFO) - Boston Logan (BOS)
  • Santa Barbara (SBA) - Boston Logan (BOS)
  • Santa Barbara (SBA) - San Francisco (SFO)
  • Seattle-Tacoma (SEA) - Boston Logan (BOS)
  • Seattle-Tacoma (SEA) - San Francisco (SFO)
All United Airlines flights
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