United Airlines UA551 Flight Status Today

Domestic flight United Airlines UA551 takes off from Saint Louis (STL) United States to Denver (DEN) United States. It's operated by United Airlines. The plane leaves Lambert-St. Louis International Airport at 18:00 19 January 2026 America/Chicago. The flight is expected to land at Denver International Airport at 19:38 19 January 2026 America/Denver. The flight will last about 2 hours 38 minutes.

Current status of UA551 is Scheduled On time Estimated Depart in 15 hours, 53 minutes

UA551 - UAL551 United Airlines (UA)
STL Saint Louis United States
Flight STL to DEN
DEN Denver United States
Scheduled On time Estimated Depart in 15 hours, 53 minutes
Departure Lambert-St. Louis International Airport
IATA: STLICAO: KSTL
Scheduled 18:00 19 January 2026
Estimated 18:00 19 January 2026
1 A16
Arrival Denver International Airport
IATA: DENICAO: KDEN
Scheduled 19:38 19 January 2026
Estimated 19:38 19 January 2026
None A18
UA551 Detail
  • Type: Domestic Flight
  • Code Shares: AC 4897
  • Flight Duration: 2 hours 38 minutes
  • Flight Distance: 1238 kms / 769 miles
Airline
  • United Airlines
  • IATA: UA
  • ICAO: UAL
  • Operating Days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
Passenger Services
  • Service type: Normal passenger
  • Seats: 128
  • Freight capacity: 6.7 tons
  • Passenger classes: First Class, Economy, Business Class, Shuttle
More Detail
  • Aircraft: Boeing 737-800 (Scimitar Winglets) Passenger
  • Callsign: F-KLEX5
  • Departure Timezone: America/Chicago
  • Arrival Timezone: America/Denver
  • Current Time in Saint Louis: Monday 2026-01-19 02:07 AM
  • Current Time in Denver: Monday 2026-01-19 01:07 AM

United Airlines UA551 Flight Statistics

United Airlines
United Airlines
FLIGHT NO UA551
AIRPLANE Boeing 737-800 (Scimitar Winglets) Passenger
ON TIME 13
DELAYED 1
CANCELLED 0
ON TIME 25
DELAYED 1
CANCELLED 0
ON TIME 35
DELAYED 5
CANCELLED 0
ON TIME 60
DELAYED 9
CANCELLED 1
Last 14 days flight data
14 30 60 90
On Time Rate

United Airlines UA551 Flight Schedule and Histories

Time Departure Arrival Actual departure Actual arrival
Sun 18 Jan
Arrived On time
Saint Louis (STL) 2026-01-18T18:00
Denver (DEN) 2026-01-18T19:38
2026-01-18T17:56
2026-01-18T19:33
Sat 17 Jan
Arrived Delayed by 18m
Saint Louis (STL) 2026-01-17T07:15
Denver (DEN) 2026-01-17T09:03
2026-01-17T07:09
2026-01-17T09:21
Fri 16 Jan
Arrived On time
Saint Louis (STL) 2026-01-16T18:00
Denver (DEN) 2026-01-16T19:38
2026-01-16T17:59
2026-01-16T19:26
Thu 15 Jan
Arrived On time
Saint Louis (STL) 2026-01-15T18:00
Denver (DEN) 2026-01-15T19:38
2026-01-15T17:57
2026-01-15T19:29
Wed 14 Jan
Arrived On time
Saint Louis (STL) 2026-01-14T18:00
Denver (DEN) 2026-01-14T19:38
2026-01-14T17:51
2026-01-14T19:37
Sun 11 Jan
Arrived On time
Saint Louis (STL) 2026-01-11T18:00
Denver (DEN) 2026-01-11T19:38
2026-01-11T17:59
2026-01-11T19:28
Sat 10 Jan
Arrived On time
Saint Louis (STL) 2026-01-10T07:15
Denver (DEN) 2026-01-10T09:03
2026-01-10T07:12
2026-01-10T09:02
Fri 09 Jan
Arrived On time
Saint Louis (STL) 2026-01-09T18:00
Denver (DEN) 2026-01-09T19:38
2026-01-09T17:51
2026-01-09T19:36
Thu 08 Jan
Arrived Delayed by 1h 15m
Saint Louis (STL) 2026-01-08T18:00
Denver (DEN) 2026-01-08T19:38
2026-01-08T19:29
2026-01-08T20:53
Wed 07 Jan
Arrived On time
Saint Louis (STL) 2026-01-07T18:00
Denver (DEN) 2026-01-07T19:38
2026-01-07T18:09
2026-01-07T19:48

Flight routes similar to United Airlines UA551

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Southwest Airlines WN2140
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10:35 		2 hours 35 minutes
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Air Canada AC4897
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United Airlines Flight UA551 FAQs

What is the scheduled flight duration for United Airlines UA551 flight?

On average, nonstop flight takes 2 hour(s) 38 minutes, with the flight distance of 1238 km (769 miles).

What is the current status of United Airlines UA551 flight?

The current status of flight United Airlines UA551 is Scheduled On time.

What type of aircraft is used for the United Airlines UA551 flight?

All United Airlines UA551 flights are operated using Boeing 737-800 (Scimitar Winglets) Passenger aircraft.

How many United Airlines UA551 flights are operated a week?

7 flights per week. The Flight United Airlines UA551 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday .