United Airlines flight UA 1851: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Thu 06:00 Burlington (BTV) 07:32 Chicago O'Hare (ORD) 1
UA 1851 Non-stop Airbus A319 (319) 2:32 Operates only on 2025-05-01
Tue-Sat 06:00 Burlington (BTV) 07:32 Chicago O'Hare (ORD) 1
UA 1851 Non-stop Boeing 737-900 (739) 2:32 Effective 2025-05-02 through 2025-05-10
Mon,Sun 06:00 Burlington (BTV) 07:32 Chicago O'Hare (ORD) 1
UA 1851 Non-stop Boeing 737-700 (73G) 2:32 Effective 2025-05-04 through 2025-05-05
Tue-Sun 06:00 Burlington (BTV) 07:32 Chicago O'Hare (ORD) 1
UA 1851 Non-stop Boeing 737-900 (739) 2:32 Effective 2025-05-11 through 2025-05-18
Mon 06:00 Burlington (BTV) 07:32 Chicago O'Hare (ORD) 1
UA 1851 Non-stop Boeing 737-700 (73G) 2:32 Operates only on 2025-05-12
Mon-Wed 06:00 Burlington (BTV) 07:32 Chicago O'Hare (ORD) 1
UA 1851 Non-stop Boeing 737-900 (739) 2:32 Effective 2025-05-19 through 2025-05-21
Thu 06:00 Burlington (BTV) 07:37 Chicago O'Hare (ORD) 1
UA 1851 Non-stop Boeing 737-700 (73G) 2:37 Operates only on 2025-05-22
Daily 06:00 Burlington (BTV) 07:37 Chicago O'Hare (ORD) 1
UA 1851 Non-stop Airbus A319 (319) 2:37 Effective 2025-05-23 through 2025-06-25
Mon 06:05 Burlington (BTV) 07:42 Chicago O'Hare (ORD) 1
UA 1851 Non-stop Boeing 737-700 (73G) 2:37 Effective 2025-06-30 through 2025-08-18
Sun 06:10 Burlington (BTV) 07:47 Chicago O'Hare (ORD) 1
UA 1851 Non-stop Airbus A320 (320) 2:37 Effective 2025-08-03 through 2025-08-17
Thu,Sat,Sun 06:15 Burlington (BTV) 07:52 Chicago O'Hare (ORD) 1
UA 1851 Non-stop Airbus A319 (319) 2:37 Effective 2025-06-26 through 2025-06-29
Tue-Fri 06:15 Burlington (BTV) 07:52 Chicago O'Hare (ORD) 1
UA 1851 Non-stop Boeing 737-800 (738) 2:37 Effective 2025-06-27 through 2025-08-15
Sat 06:15 Burlington (BTV) 07:52 Chicago O'Hare (ORD) 1
UA 1851 Non-stop Boeing 737-900 (739) 2:37 Operates only on 2025-07-05
Sat,Sun 06:15 Burlington (BTV) 07:52 Chicago O'Hare (ORD) 1
UA 1851 Non-stop Airbus A319 (319) 2:37 Effective 2025-07-06 through 2025-08-02
Sat 06:15 Burlington (BTV) 07:52 Chicago O'Hare (ORD) 1
UA 1851 Non-stop Airbus A319 (319) 2:37 Effective 2025-08-09 through 2025-08-16
Tue,Wed 08:55 Chicago O'Hare (ORD) 1 12:05 Albany (ALB)
UA 1851 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2025-08-05 through 2025-08-13
Mon-Fri,Sun 09:00 Chicago O'Hare (ORD) 1 11:56 Ronald Reagan Washington (DCA) 2
UA 1851 Non-stop Boeing 737-700 (73G) 1:56 Valid until 2025-05-21
Mon-Fri,Sun 09:00 Chicago O'Hare (ORD) 1 11:59 Ronald Reagan Washington (DCA) 2
UA 1851 Non-stop Airbus A320 (320) 1:59 Effective 2025-06-26 through 2025-07-31
Mon,Thu,Fri 09:00 Chicago O'Hare (ORD) 1 12:11 Albany (ALB)
UA 1851 Non-stop Airbus A319 (319) 2:11 Effective 2025-08-01 through 2025-08-18
Thu 09:23 Chicago O'Hare (ORD) 1 12:23 San Antonio (SAT) B
UA 1851 Non-stop Airbus A320 (320) 3:00 Operates only on 2025-05-22
Daily 17:25 Jacksonville (JAX) 19:05 George Bush, Houston (IAH) C
UA 1851 Non-stop Airbus A319 (319) 2:40 Effective 2025-10-26 through 2025-12-01
Sat,Sun 17:25 Jacksonville (JAX) 19:05 George Bush, Houston (IAH) C
UA 1851 Non-stop Airbus A319 (319) 2:40 Effective 2025-12-20 through 2026-01-04
Daily 17:25 Jacksonville (JAX) 19:05 George Bush, Houston (IAH) C
UA 1851 Non-stop Airbus A319 (319) 2:40 Effective from 2026-02-12
Daily 22:00 George Bush, Houston (IAH) C 23:33 Los Angeles (LAX) 7
UA 1851 Non-stop Boeing 737-900 (739) 3:33 Effective 2025-08-19 through 2025-09-24
Daily 22:00 George Bush, Houston (IAH) C 23:24 Los Angeles (LAX) 7
UA 1851 Non-stop Boeing 737 MAX 9 (7M9) 3:24 Effective from 2025-10-26
Daily 22:03 George Bush, Houston (IAH) C 23:36 Los Angeles (LAX) 7
UA 1851 Non-stop Boeing 737 MAX 9 (7M9) 3:33 Effective 2025-09-25 through 2025-10-25
Non-Direct Flights:
Thu 06:00 Burlington (BTV) 11:56 Ronald Reagan Washington (DCA) 2
UA 1851 1-stop Airbus A319 (319) 5:56 Operates only on 2025-05-01
Tue-Fri 06:00 Burlington (BTV) 11:56 Ronald Reagan Washington (DCA) 2
UA 1851 1-stop Boeing 737-900 (739) 5:56 Effective 2025-05-02 through 2025-05-09
Mon,Sun 06:00 Burlington (BTV) 11:56 Ronald Reagan Washington (DCA) 2
UA 1851 1-stop Boeing 737-700 (73G) 5:56 Effective 2025-05-04 through 2025-05-05
Tue-Fri,Sun 06:00 Burlington (BTV) 11:56 Ronald Reagan Washington (DCA) 2
UA 1851 1-stop Boeing 737-900 (739) 5:56 Effective 2025-05-11 through 2025-05-18
Mon 06:00 Burlington (BTV) 11:56 Ronald Reagan Washington (DCA) 2
UA 1851 1-stop Boeing 737-700 (73G) 5:56 Operates only on 2025-05-12
Mon-Wed 06:00 Burlington (BTV) 11:56 Ronald Reagan Washington (DCA) 2
UA 1851 1-stop Boeing 737-900 (739) 5:56 Effective 2025-05-19 through 2025-05-21
Thu 06:00 Burlington (BTV) 12:23 San Antonio (SAT) B
UA 1851 1-stop Boeing 737-700 (73G) 7:23 Operates only on 2025-05-22
Mon 06:05 Burlington (BTV) 11:59 Ronald Reagan Washington (DCA) 2
UA 1851 1-stop Boeing 737-700 (73G) 5:54 Effective 2025-06-30 through 2025-07-28
Mon 06:05 Burlington (BTV) 12:11 Albany (ALB)
UA 1851 1-stop Boeing 737-700 (73G) 6:06 Effective 2025-08-04 through 2025-08-18
Thu,Sun 06:15 Burlington (BTV) 11:59 Ronald Reagan Washington (DCA) 2
UA 1851 1-stop Airbus A319 (319) 5:44 Effective 2025-06-26 through 2025-06-29
Tue-Fri 06:15 Burlington (BTV) 11:59 Ronald Reagan Washington (DCA) 2
UA 1851 1-stop Boeing 737-800 (738) 5:44 Effective 2025-06-27 through 2025-07-31
Sun 06:15 Burlington (BTV) 11:59 Ronald Reagan Washington (DCA) 2
UA 1851 1-stop Airbus A319 (319) 5:44 Effective 2025-07-06 through 2025-07-27
Thu,Fri 06:15 Burlington (BTV) 12:11 Albany (ALB)
UA 1851 1-stop Boeing 737-800 (738) 5:56 Effective 2025-08-01 through 2025-08-15
Tue,Wed 06:15 Burlington (BTV) 12:05 Albany (ALB)
UA 1851 1-stop Boeing 737-800 (738) 5:50 Effective 2025-08-05 through 2025-08-13
Daily 17:25 Jacksonville (JAX) 23:24 Los Angeles (LAX) 7
UA 1851 1-stop Airbus A319 (319) 8:59 Effective 2025-10-26 through 2025-12-01
Sat,Sun 17:25 Jacksonville (JAX) 23:24 Los Angeles (LAX) 7
UA 1851 1-stop Airbus A319 (319) 8:59 Effective 2025-12-20 through 2026-01-04
Daily 17:25 Jacksonville (JAX) 23:24 Los Angeles (LAX) 7
UA 1851 1-stop Airbus A319 (319) 8:59 Effective from 2026-02-12
This flight number is listed as serving the following routes:


Feedback - Disclaimer - Privacy
FlightMapper.net Flight Search Countries Airlines
LANGUAGES
United Airlines flight UA 1851: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA1851
06:00
Burlington (BTV)

07:32
Chicago O'Hare (ORD) 1
Operates only on 2025-05-01
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:32, non-stop
Airbus A319 (319)
United Airlines UA1851
06:00
Burlington (BTV)

07:32
Chicago O'Hare (ORD) 1
Effective 2025-05-02 through 2025-05-10
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 2:32, non-stop
Boeing 737-900 (739)
United Airlines UA1851
06:00
Burlington (BTV)

07:32
Chicago O'Hare (ORD) 1
Effective 2025-05-04 through 2025-05-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:32, non-stop
Boeing 737-700 (73G)
United Airlines UA1851
06:00
Burlington (BTV)

07:32
Chicago O'Hare (ORD) 1
Effective 2025-05-11 through 2025-05-18
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:32, non-stop
Boeing 737-900 (739)
United Airlines UA1851
06:00
Burlington (BTV)

07:32
Chicago O'Hare (ORD) 1
Operates only on 2025-05-12
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:32, non-stop
Boeing 737-700 (73G)
United Airlines UA1851
06:00
Burlington (BTV)

07:32
Chicago O'Hare (ORD) 1
Effective 2025-05-19 through 2025-05-21
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:32, non-stop
Boeing 737-900 (739)
United Airlines UA1851
06:00
Burlington (BTV)

07:37
Chicago O'Hare (ORD) 1
Operates only on 2025-05-22
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:37, non-stop
Boeing 737-700 (73G)
United Airlines UA1851
06:00
Burlington (BTV)

07:37
Chicago O'Hare (ORD) 1
Effective 2025-05-23 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:37, non-stop
Airbus A319 (319)
United Airlines UA1851
06:05
Burlington (BTV)

07:42
Chicago O'Hare (ORD) 1
Effective 2025-06-30 through 2025-08-18
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:37, non-stop
Boeing 737-700 (73G)
United Airlines UA1851
06:10
Burlington (BTV)

07:47
Chicago O'Hare (ORD) 1
Effective 2025-08-03 through 2025-08-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:37, non-stop
Airbus A320 (320)
United Airlines UA1851
06:15
Burlington (BTV)

07:52
Chicago O'Hare (ORD) 1
Effective 2025-06-26 through 2025-06-29
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
Sun
Duration: 2:37, non-stop
Airbus A319 (319)
United Airlines UA1851
06:15
Burlington (BTV)

07:52
Chicago O'Hare (ORD) 1
Effective 2025-06-27 through 2025-08-15
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:37, non-stop
Boeing 737-800 (738)
United Airlines UA1851
06:15
Burlington (BTV)

07:52
Chicago O'Hare (ORD) 1
Operates only on 2025-07-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:37, non-stop
Boeing 737-900 (739)
United Airlines UA1851
06:15
Burlington (BTV)

07:52
Chicago O'Hare (ORD) 1
Effective 2025-07-06 through 2025-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 2:37, non-stop
Airbus A319 (319)
United Airlines UA1851
06:15
Burlington (BTV)

07:52
Chicago O'Hare (ORD) 1
Effective 2025-08-09 through 2025-08-16
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:37, non-stop
Airbus A319 (319)
United Airlines UA1851
08:55
Chicago O'Hare (ORD) 1

12:05
Albany (ALB)
Effective 2025-08-05 through 2025-08-13
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA1851
09:00
Chicago O'Hare (ORD) 1

11:56
Ronald Reagan Washington (DCA) 2
Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:56, non-stop
Boeing 737-700 (73G)
United Airlines UA1851
09:00
Chicago O'Hare (ORD) 1

11:59
Ronald Reagan Washington (DCA) 2
Effective 2025-06-26 through 2025-07-31
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:59, non-stop
Airbus A320 (320)
United Airlines UA1851
09:00
Chicago O'Hare (ORD) 1

12:11
Albany (ALB)
Effective 2025-08-01 through 2025-08-18
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:11, non-stop
Airbus A319 (319)
United Airlines UA1851
09:23
Chicago O'Hare (ORD) 1

12:23
San Antonio (SAT) B
Operates only on 2025-05-22
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 3:00, non-stop
Airbus A320 (320)
United Airlines UA1851
17:25
Jacksonville (JAX)

19:05
George Bush, Houston (IAH) C
Effective 2025-10-26 through 2025-12-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:40, non-stop
Airbus A319 (319)
United Airlines UA1851
17:25
Jacksonville (JAX)

19:05
George Bush, Houston (IAH) C
Effective 2025-12-20 through 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 2:40, non-stop
Airbus A319 (319)
United Airlines UA1851
17:25
Jacksonville (JAX)

19:05
George Bush, Houston (IAH) C
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:40, non-stop
Airbus A319 (319)
United Airlines UA1851
22:00
George Bush, Houston (IAH) C

23:33
Los Angeles (LAX) 7
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:33, non-stop
Boeing 737-900 (739)
United Airlines UA1851
22:00
George Bush, Houston (IAH) C

23:24
Los Angeles (LAX) 7
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:24, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1851
22:03
George Bush, Houston (IAH) C

23:36
Los Angeles (LAX) 7
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:33, non-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA1851
06:00
Burlington (BTV)

11:56
Ronald Reagan Washington (DCA) 2
Operates only on 2025-05-01
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 5:56, 1-stop
Airbus A319 (319)
United Airlines UA1851
06:00
Burlington (BTV)

11:56
Ronald Reagan Washington (DCA) 2
Effective 2025-05-02 through 2025-05-09
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 5:56, 1-stop
Boeing 737-900 (739)
United Airlines UA1851
06:00
Burlington (BTV)

11:56
Ronald Reagan Washington (DCA) 2
Effective 2025-05-04 through 2025-05-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:56, 1-stop
Boeing 737-700 (73G)
United Airlines UA1851
06:00
Burlington (BTV)

11:56
Ronald Reagan Washington (DCA) 2
Effective 2025-05-11 through 2025-05-18
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 5:56, 1-stop
Boeing 737-900 (739)
United Airlines UA1851
06:00
Burlington (BTV)

11:56
Ronald Reagan Washington (DCA) 2
Operates only on 2025-05-12
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:56, 1-stop
Boeing 737-700 (73G)
United Airlines UA1851
06:00
Burlington (BTV)

11:56
Ronald Reagan Washington (DCA) 2
Effective 2025-05-19 through 2025-05-21
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:56, 1-stop
Boeing 737-900 (739)
United Airlines UA1851
06:00
Burlington (BTV)

12:23
San Antonio (SAT) B
Operates only on 2025-05-22
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 7:23, 1-stop
Boeing 737-700 (73G)
United Airlines UA1851
06:05
Burlington (BTV)

11:59
Ronald Reagan Washington (DCA) 2
Effective 2025-06-30 through 2025-07-28
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:54, 1-stop
Boeing 737-700 (73G)
United Airlines UA1851
06:05
Burlington (BTV)

12:11
Albany (ALB)
Effective 2025-08-04 through 2025-08-18
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 6:06, 1-stop
Boeing 737-700 (73G)
United Airlines UA1851
06:15
Burlington (BTV)

11:59
Ronald Reagan Washington (DCA) 2
Effective 2025-06-26 through 2025-06-29
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
Duration: 5:44, 1-stop
Airbus A319 (319)
United Airlines UA1851
06:15
Burlington (BTV)

11:59
Ronald Reagan Washington (DCA) 2
Effective 2025-06-27 through 2025-07-31
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 5:44, 1-stop
Boeing 737-800 (738)
United Airlines UA1851
06:15
Burlington (BTV)

11:59
Ronald Reagan Washington (DCA) 2
Effective 2025-07-06 through 2025-07-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:44, 1-stop
Airbus A319 (319)
United Airlines UA1851
06:15
Burlington (BTV)

12:11
Albany (ALB)
Effective 2025-08-01 through 2025-08-15
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 5:56, 1-stop
Boeing 737-800 (738)
United Airlines UA1851
06:15
Burlington (BTV)

12:05
Albany (ALB)
Effective 2025-08-05 through 2025-08-13
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:50, 1-stop
Boeing 737-800 (738)
United Airlines UA1851
17:25
Jacksonville (JAX)

23:24
Los Angeles (LAX) 7
Effective 2025-10-26 through 2025-12-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:59, 1-stop
Airbus A319 (319)
United Airlines UA1851
17:25
Jacksonville (JAX)

23:24
Los Angeles (LAX) 7
Effective 2025-12-20 through 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 8:59, 1-stop
Airbus A319 (319)
United Airlines UA1851
17:25
Jacksonville (JAX)

23:24
Los Angeles (LAX) 7
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:59, 1-stop
Airbus A319 (319)
This flight number is listed as serving the following routes:
  • Burlington (BTV) - Albany (ALB)
  • Burlington (BTV) - Chicago O'Hare (ORD)
  • Burlington (BTV) - Ronald Reagan Washington (DCA)
  • Burlington (BTV) - San Antonio (SAT)
  • Chicago O'Hare (ORD) - Albany (ALB)
  • Chicago O'Hare (ORD) - Ronald Reagan Washington (DCA)
  • Chicago O'Hare (ORD) - San Antonio (SAT)
  • George Bush, Houston (IAH) - Los Angeles (LAX)
  • Jacksonville (JAX) - George Bush, Houston (IAH)
  • Jacksonville (JAX) - Los Angeles (LAX)
All United Airlines flights
Feedback     -     Disclaimer     -     Privacy