United Airlines flight UA 1688: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 08:55 Chicago O'Hare (ORD) 1 12:00 Austin (AUS)
UA 1688 Non-stop Boeing 737-800 (738) 3:05 Effective from 2026-03-29
Sat 14:30 Austin (AUS) 16:38 San Francisco (SFO) 3
UA 1688 Non-stop Boeing 737-900 (739) 4:08 Effective 2026-01-10 through 2026-02-07
Mon,Thu,Fri,Sun 15:10 Austin (AUS) 17:18 San Francisco (SFO) 3
UA 1688 Non-stop Boeing 737-900 (739) 4:08 Effective 2026-01-08 through 2026-02-02
Mon-Fri,Sun 15:10 Austin (AUS) 17:18 San Francisco (SFO) 3
UA 1688 Non-stop Boeing 737-900 (739) 4:08 Effective 2026-02-03 through 2026-02-09
Daily 15:12 Austin (AUS) 17:20 San Francisco (SFO) 3
UA 1688 Non-stop Boeing 737 MAX 8 (7M8) 4:08 Effective 2026-03-05 through 2026-03-28
Daily 15:12 Austin (AUS) 17:15 San Francisco (SFO) 3
UA 1688 Non-stop Airbus A319 (319) 4:03 Effective 2026-03-29 through 2026-04-29
Daily 15:12 Austin (AUS) 17:15 San Francisco (SFO) 3
UA 1688 Non-stop Airbus A320 (320) 4:03 Effective from 2026-05-21
Mon 18:55 San Francisco (SFO) 3 00:24 Dallas Fort Worth (DFW) E
UA 1688 Non-stop Boeing 737-900 (739) 3:29 Operates only on 2026-01-05
The flight arrives 1 day after departure.
Daily 20:25 San Francisco (SFO) 3 21:58 Burbank (BUR)
UA 1688 Non-stop Airbus A319 (319) 1:33 Effective 2026-03-29 through 2026-04-29
Mon-Wed 20:39 San Francisco (SFO) 3 21:59 Burbank (BUR)
UA 1688 Non-stop Airbus A319 (319) 1:20 Effective 2026-02-16 through 2026-03-04
Daily 20:39 San Francisco (SFO) 3 21:59 Burbank (BUR)
UA 1688 Non-stop Airbus A320 (320) 1:20 Effective 2026-03-05 through 2026-03-28
Thu-Sun 20:45 San Francisco (SFO) 3 22:05 Burbank (BUR)
UA 1688 Non-stop Airbus A319 (319) 1:20 Effective 2026-02-12 through 2026-03-01
Daily 20:45 San Francisco (SFO) 3 22:08 Burbank (BUR)
UA 1688 Non-stop Boeing 737 MAX 8 (7M8) 1:23 Effective from 2026-05-21
Daily 20:47 San Francisco (SFO) 3 05:11 Philadelphia (PHL) D
UA 1688 Non-stop Boeing 737 MAX 8 (7M8) 5:24 Valid until 2026-01-04
The flight arrives 1 day after departure.
Non-Direct Flights:
Daily 08:55 Chicago O'Hare (ORD) 1 17:15 San Francisco (SFO) 3
UA 1688 1-stop Boeing 737-800 (738) 10:20 Effective 2026-03-29 through 2026-04-29
Daily 08:55 Chicago O'Hare (ORD) 1 17:15 San Francisco (SFO) 3
UA 1688 1-stop Boeing 737-800 (738) 10:20 Effective from 2026-05-21
Daily 15:12 Austin (AUS) 21:59 Burbank (BUR)
UA 1688 1-stop Boeing 737 MAX 8 (7M8) 8:47 Effective 2026-03-05 through 2026-03-28
Daily 15:12 Austin (AUS) 21:58 Burbank (BUR)
UA 1688 1-stop Airbus A319 (319) 8:46 Effective 2026-03-29 through 2026-04-29
Daily 15:12 Austin (AUS) 22:08 Burbank (BUR)
UA 1688 1-stop Airbus A320 (320) 8:56 Effective from 2026-05-21
Daily 08:55 Chicago O'Hare (ORD) 1 21:58 Burbank (BUR)
UA 1688 2-stop Boeing 737-800 (738) 15:03 Effective 2026-03-29 through 2026-04-29
Daily 08:55 Chicago O'Hare (ORD) 1 22:08 Burbank (BUR)
UA 1688 2-stop Boeing 737-800 (738) 15:13 Effective from 2026-05-21
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This flight number is listed as serving the following routes:


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United Airlines flight UA 1688: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA1688
08:55
Chicago O'Hare (ORD) 1

12:00
Austin (AUS)
Effective from 2026-03-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:05, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA1688
14:30
Austin (AUS)

16:38
San Francisco (SFO) 3
Effective 2026-01-10 through 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:08, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1688
15:10
Austin (AUS)

17:18
San Francisco (SFO) 3
Effective 2026-01-08 through 2026-02-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:08, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1688
15:10
Austin (AUS)

17:18
San Francisco (SFO) 3
Effective 2026-02-03 through 2026-02-09
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 4:08, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1688
15:12
Austin (AUS)

17:20
San Francisco (SFO) 3
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:08, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1688
15:12
Austin (AUS)

17:15
San Francisco (SFO) 3
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:03, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA1688
15:12
Austin (AUS)

17:15
San Francisco (SFO) 3
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:03, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA1688
18:55
San Francisco (SFO) 3

00:24(+1)
Dallas Fort Worth (DFW) E
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:29, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
Direct Flights:
United Airlines UA1688
20:25
San Francisco (SFO) 3

21:58
Burbank (BUR)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:33, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA1688
20:39
San Francisco (SFO) 3

21:59
Burbank (BUR)
Effective 2026-02-16 through 2026-03-04
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:20, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA1688
20:39
San Francisco (SFO) 3

21:59
Burbank (BUR)
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:20, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA1688
20:45
San Francisco (SFO) 3

22:05
Burbank (BUR)
Effective 2026-02-12 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
Sun
Duration: 1:20, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA1688
20:45
San Francisco (SFO) 3

22:08
Burbank (BUR)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:23, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1688
20:47
San Francisco (SFO) 3

05:11(+1)
Philadelphia (PHL) D
Valid until 2026-01-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:24, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1688
08:55
Chicago O'Hare (ORD) 1

17:15
San Francisco (SFO) 3
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:20, 1-stop
Boeing 737-800 (738)
Non-Direct Flights:
United Airlines UA1688
08:55
Chicago O'Hare (ORD) 1

17:15
San Francisco (SFO) 3
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:20, 1-stop
Boeing 737-800 (738)
Non-Direct Flights:
United Airlines UA1688
15:12
Austin (AUS)

21:59
Burbank (BUR)
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:47, 1-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
United Airlines UA1688
15:12
Austin (AUS)

21:58
Burbank (BUR)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:46, 1-stop
Airbus A319 (319)
Non-Direct Flights:
United Airlines UA1688
15:12
Austin (AUS)

22:08
Burbank (BUR)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:56, 1-stop
Airbus A320 (320)
Non-Direct Flights:
United Airlines UA1688
08:55
Chicago O'Hare (ORD) 1

21:58
Burbank (BUR)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 15:03, 2-stop
Boeing 737-800 (738)
Non-Direct Flights:
United Airlines UA1688
08:55
Chicago O'Hare (ORD) 1

22:08
Burbank (BUR)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 15:13, 2-stop
Boeing 737-800 (738)
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This flight number is listed as serving the following routes:
  • Austin (AUS) - Burbank (BUR)
  • Austin (AUS) - San Francisco (SFO)
  • Chicago O'Hare (ORD) - Austin (AUS)
  • Chicago O'Hare (ORD) - Burbank (BUR)
  • Chicago O'Hare (ORD) - San Francisco (SFO)
  • San Francisco (SFO) - Burbank (BUR)
  • San Francisco (SFO) - Dallas Fort Worth (DFW)
  • San Francisco (SFO) - Philadelphia (PHL)
All United Airlines flights
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