United Airlines flight UA 1660: Multiple routes

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Select flight date:  Show Calendar
FLIGHT SCHEDULE
Direct Flights:
Daily 07:30 Portland (PDX) 09:23 San Francisco (SFO) 3
UA 1660 Non-stop Airbus A320 (320) 1:53 Effective 2025-09-25 through 2025-10-25
Mon,Thu-Sun 07:30 Phoenix Sky Harbor (PHX) 3 12:52 Chicago O'Hare (ORD) 1
UA 1660 Non-stop Boeing 737-900 (739) 3:22 Effective 2025-10-26 through 2025-11-01
Daily 07:30 Portland (PDX) 09:26 San Francisco (SFO) 3
UA 1660 Non-stop Boeing 737-800 (738) 1:56 Effective 2026-01-06 through 2026-02-11
Daily 07:40 Portland (PDX) 09:36 San Francisco (SFO) 3
UA 1660 Non-stop Boeing 737-800 (738) 1:56 Effective 2025-12-02 through 2025-12-17
Daily 07:40 Portland (PDX) 09:36 San Francisco (SFO) 3
UA 1660 Non-stop Boeing 737-800 (738) 1:56 Effective from 2026-02-12
Daily 07:45 Portland (PDX) 09:38 San Francisco (SFO) 3
UA 1660 Non-stop Airbus A319 (319) 1:53 Effective 2025-08-19 through 2025-09-24
Mon-Fri,Sun 11:25 New York LaGuardia (LGA) B 13:03 Chicago O'Hare (ORD) 1
UA 1660 Non-stop Boeing 737-800 (738) 2:38 Effective 2025-08-01 through 2025-08-18
Daily 13:10 San Francisco (SFO) 3 21:29 Baltimore (BWI)
UA 1660 Non-stop Boeing 737 MAX 9 (7M9) 5:19 Effective 2025-09-25 through 2025-10-25
Daily 16:10 Chicago O'Hare (ORD) 1 19:17 Philadelphia (PHL) D
UA 1660 Non-stop Boeing 737-800 (738) 2:07 Effective 2025-10-26 through 2025-12-01
Daily 16:48 Chicago O'Hare (ORD) 1 19:38 San Francisco (SFO) 3
UA 1660 Non-stop Airbus A321neo (32Q) 4:50 Effective 2025-05-22 through 2025-06-24
Wed 16:48 Chicago O'Hare (ORD) 1 19:38 San Francisco (SFO) 3
UA 1660 Non-stop Boeing 737-900 (739) 4:50 Operates only on 2025-06-25
Thu 16:50 Chicago O'Hare (ORD) 1 19:41 San Francisco (SFO) 3
UA 1660 Non-stop Airbus A321neo (32Q) 4:51 Operates only on 2025-06-26
Daily 16:50 Chicago O'Hare (ORD) 1 19:36 San Francisco (SFO) 3
UA 1660 Non-stop Boeing 757-300 (753) 4:46 Effective 2025-06-27 through 2025-08-18
Daily 18:12 George Bush, Houston (IAH) E 21:55 San Jose (SJO) M
UA 1660 Non-stop Boeing 737 MAX 8 (7M8) 3:43 Effective 2025-12-18 through 2026-01-05
Mon,Wed-Sun 21:30 San Francisco (SFO) 3 05:10 Detroit (DTW) E
UA 1660 Non-stop Airbus A319 (319) 4:40 Effective 2025-06-26 through 2025-07-03
The flight arrives 1 day after departure.
Mon,Wed-Sun 21:30 San Francisco (SFO) 3 05:10 Detroit (DTW) E
UA 1660 Non-stop Airbus A319 (319) 4:40 Effective 2025-07-05 through 2025-07-31
The flight arrives 1 day after departure.
Daily 22:30 Dulles, Washington (IAD) 23:52 Cleveland Hopkins (CLE)
UA 1660 Non-stop Boeing 737-800 (738) 1:22 Valid until 2025-05-21
Daily 22:35 San Francisco (SFO) 3 00:10 Los Angeles (LAX) 7
UA 1660 Non-stop Boeing 737-900 (739) 1:35 Effective 2025-08-01 through 2025-08-18
The flight arrives 1 day after departure.
Non-Direct Flights:
Daily 07:30 Portland (PDX) 21:29 Baltimore (BWI)
UA 1660 1-stop Airbus A320 (320) 10:59 Effective 2025-09-25 through 2025-10-25
Mon,Thu-Sun 07:30 Phoenix Sky Harbor (PHX) 3 19:17 Philadelphia (PHL) D
UA 1660 1-stop Boeing 737-900 (739) 8:47 Effective 2025-10-26 through 2025-11-01
Mon-Fri,Sun 11:25 New York LaGuardia (LGA) B 19:36 San Francisco (SFO) 3
UA 1660 1-stop Boeing 737-800 (738) 11:11 Effective 2025-08-01 through 2025-08-18
Thu 16:50 Chicago O'Hare (ORD) 1 05:10 Detroit (DTW) E
UA 1660 1-stop Airbus A321neo (32Q) 11:20 Operates only on 2025-06-26
The flight arrives 1 day after departure.
Mon,Wed-Sun 16:50 Chicago O'Hare (ORD) 1 05:10 Detroit (DTW) E
UA 1660 1-stop Boeing 757-300 (753) 11:20 Effective 2025-06-27 through 2025-07-03
The flight arrives 1 day after departure.
Mon,Wed-Sun 16:50 Chicago O'Hare (ORD) 1 05:10 Detroit (DTW) E
UA 1660 1-stop Boeing 757-300 (753) 11:20 Effective 2025-07-05 through 2025-07-31
The flight arrives 1 day after departure.
Daily 16:50 Chicago O'Hare (ORD) 1 00:10 Los Angeles (LAX) 7
UA 1660 1-stop Boeing 757-300 (753) 9:20 Effective 2025-08-01 through 2025-08-18
The flight arrives 1 day after departure.
Mon-Fri,Sun 11:25 New York LaGuardia (LGA) B 00:10 Los Angeles (LAX) 7
UA 1660 2-stop Boeing 737-800 (738) 15:45 Effective 2025-08-01 through 2025-08-18
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:


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United Airlines flight UA 1660: Multiple routes
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Select flight date:  Show Calendar
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA1660
07:30
Portland (PDX)

09:23
San Francisco (SFO) 3
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:53, non-stop
Airbus A320 (320)
United Airlines UA1660
07:30
Phoenix Sky Harbor (PHX) 3

12:52
Chicago O'Hare (ORD) 1
Effective 2025-10-26 through 2025-11-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
Duration: 3:22, non-stop
Boeing 737-900 (739)
United Airlines UA1660
07:30
Portland (PDX)

09:26
San Francisco (SFO) 3
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:56, non-stop
Boeing 737-800 (738)
United Airlines UA1660
07:40
Portland (PDX)

09:36
San Francisco (SFO) 3
Effective 2025-12-02 through 2025-12-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:56, non-stop
Boeing 737-800 (738)
United Airlines UA1660
07:40
Portland (PDX)

09:36
San Francisco (SFO) 3
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:56, non-stop
Boeing 737-800 (738)
United Airlines UA1660
07:45
Portland (PDX)

09:38
San Francisco (SFO) 3
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:53, non-stop
Airbus A319 (319)
United Airlines UA1660
11:25
New York LaGuardia (LGA) B

13:03
Chicago O'Hare (ORD) 1
Effective 2025-08-01 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:38, non-stop
Boeing 737-800 (738)
United Airlines UA1660
13:10
San Francisco (SFO) 3

21:29
Baltimore (BWI)
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:19, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1660
16:10
Chicago O'Hare (ORD) 1

19:17
Philadelphia (PHL) D
Effective 2025-10-26 through 2025-12-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:07, non-stop
Boeing 737-800 (738)
United Airlines UA1660
16:48
Chicago O'Hare (ORD) 1

19:38
San Francisco (SFO) 3
Effective 2025-05-22 through 2025-06-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:50, non-stop
Airbus A321neo (32Q)
United Airlines UA1660
16:48
Chicago O'Hare (ORD) 1

19:38
San Francisco (SFO) 3
Operates only on 2025-06-25
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:50, non-stop
Boeing 737-900 (739)
United Airlines UA1660
16:50
Chicago O'Hare (ORD) 1

19:41
San Francisco (SFO) 3
Operates only on 2025-06-26
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 4:51, non-stop
Airbus A321neo (32Q)
United Airlines UA1660
16:50
Chicago O'Hare (ORD) 1

19:36
San Francisco (SFO) 3
Effective 2025-06-27 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:46, non-stop
Boeing 757-300 (753)
United Airlines UA1660
18:12
George Bush, Houston (IAH) E

21:55
San Jose (SJO) M
Effective 2025-12-18 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:43, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA1660
21:30
San Francisco (SFO) 3

05:10(+1)
Detroit (DTW) E
Effective 2025-06-26 through 2025-07-03
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Duration: 4:40, non-stop
Airbus A319 (319)
The flight arrives 1 day after departure.
United Airlines UA1660
21:30
San Francisco (SFO) 3

05:10(+1)
Detroit (DTW) E
Effective 2025-07-05 through 2025-07-31
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Duration: 4:40, non-stop
Airbus A319 (319)
The flight arrives 1 day after departure.
United Airlines UA1660
22:30
Dulles, Washington (IAD)

23:52
Cleveland Hopkins (CLE)
Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:22, non-stop
Boeing 737-800 (738)
United Airlines UA1660
22:35
San Francisco (SFO) 3

00:10(+1)
Los Angeles (LAX) 7
Effective 2025-08-01 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:35, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1660
07:30
Portland (PDX)

21:29
Baltimore (BWI)
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:59, 1-stop
Airbus A320 (320)
United Airlines UA1660
07:30
Phoenix Sky Harbor (PHX) 3

19:17
Philadelphia (PHL) D
Effective 2025-10-26 through 2025-11-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
Duration: 8:47, 1-stop
Boeing 737-900 (739)
United Airlines UA1660
11:25
New York LaGuardia (LGA) B

19:36
San Francisco (SFO) 3
Effective 2025-08-01 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 11:11, 1-stop
Boeing 737-800 (738)
United Airlines UA1660
16:50
Chicago O'Hare (ORD) 1

05:10(+1)
Detroit (DTW) E
Operates only on 2025-06-26
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 11:20, 1-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
United Airlines UA1660
16:50
Chicago O'Hare (ORD) 1

05:10(+1)
Detroit (DTW) E
Effective 2025-06-27 through 2025-07-03
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Duration: 11:20, 1-stop
Boeing 757-300 (753)
The flight arrives 1 day after departure.
United Airlines UA1660
16:50
Chicago O'Hare (ORD) 1

05:10(+1)
Detroit (DTW) E
Effective 2025-07-05 through 2025-07-31
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Duration: 11:20, 1-stop
Boeing 757-300 (753)
The flight arrives 1 day after departure.
United Airlines UA1660
16:50
Chicago O'Hare (ORD) 1

00:10(+1)
Los Angeles (LAX) 7
Effective 2025-08-01 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 9:20, 1-stop
Boeing 757-300 (753)
The flight arrives 1 day after departure.
United Airlines UA1660
11:25
New York LaGuardia (LGA) B

00:10(+1)
Los Angeles (LAX) 7
Effective 2025-08-01 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 15:45, 2-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:
  • Chicago O'Hare (ORD) - Detroit (DTW)
  • Chicago O'Hare (ORD) - Los Angeles (LAX)
  • Chicago O'Hare (ORD) - Philadelphia (PHL)
  • Chicago O'Hare (ORD) - San Francisco (SFO)
  • Dulles, Washington (IAD) - Cleveland Hopkins (CLE)
  • George Bush, Houston (IAH) - San Jose (SJO)
  • New York LaGuardia (LGA) - Chicago O'Hare (ORD)
  • New York LaGuardia (LGA) - Los Angeles (LAX)
  • New York LaGuardia (LGA) - San Francisco (SFO)
  • Phoenix Sky Harbor (PHX) - Chicago O'Hare (ORD)
  • Phoenix Sky Harbor (PHX) - Philadelphia (PHL)
  • Portland (PDX) - Baltimore (BWI)
  • Portland (PDX) - San Francisco (SFO)
  • San Francisco (SFO) - Baltimore (BWI)
  • San Francisco (SFO) - Detroit (DTW)
  • San Francisco (SFO) - Los Angeles (LAX)
All United Airlines flights
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