United Airlines flight UA 1866: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon-Sat 08:30 Saint Louis (STL) 1 10:00 Denver (DEN)
UA 1866 Non-stop Airbus A320 (320) 2:30 Effective 2024-12-03 through 2024-12-18
Sun 08:30 Saint Louis (STL) 1 10:00 Denver (DEN)
UA 1866 Non-stop Boeing 737-900 (739) 2:30 Effective 2024-12-08 through 2024-12-15
Tue 11:25 Denver (DEN) 13:26 Phoenix Sky Harbor (PHX) 3
UA 1866 Non-stop Boeing 737-800 (738) 2:01 Effective 2024-12-03 through 2024-12-17
Mon,Wed-Fri,Sun 11:25 Denver (DEN) 13:26 Phoenix Sky Harbor (PHX) 3
UA 1866 Non-stop Airbus A321neo (32Q) 2:01 Effective 2024-12-04 through 2024-12-18
Sat 11:25 Denver (DEN) 13:26 Phoenix Sky Harbor (PHX) 3
UA 1866 Non-stop Boeing 737-900 (739) 2:01 Effective 2024-12-07 through 2024-12-14
Daily 11:30 Denver (DEN) 12:26 Phoenix Sky Harbor (PHX) 3
UA 1866 Non-stop Boeing 737-900 (739) 1:56 Valid until 2024-09-05
Fri 11:30 Denver (DEN) 12:26 Phoenix Sky Harbor (PHX) 3
UA 1866 Non-stop Boeing 737 MAX 9 (7M9) 1:56 Operates only on 2024-09-06
Daily 11:30 Denver (DEN) 12:26 Phoenix Sky Harbor (PHX) 3
UA 1866 Non-stop Boeing 737-900 (739) 1:56 Effective 2024-09-07 through 2024-10-05
Sun 11:30 Denver (DEN) 12:26 Phoenix Sky Harbor (PHX) 3
UA 1866 Non-stop Boeing 737 MAX 8 (7M8) 1:56 Operates only on 2024-10-06
Daily 11:30 Denver (DEN) 12:26 Phoenix Sky Harbor (PHX) 3
UA 1866 Non-stop Boeing 737-900 (739) 1:56 Effective 2024-10-07 through 2024-10-22
Wed,Thu 11:30 Denver (DEN) 12:26 Phoenix Sky Harbor (PHX) 3
UA 1866 Non-stop Boeing 737 MAX 8 (7M8) 1:56 Effective 2024-10-23 through 2024-10-24
Fri,Sat 11:30 Denver (DEN) 12:26 Phoenix Sky Harbor (PHX) 3
UA 1866 Non-stop Boeing 737-900 (739) 1:56 Effective 2024-10-25 through 2024-10-26
Daily 11:30 Denver (DEN) 12:31 Phoenix Sky Harbor (PHX) 3
UA 1866 Non-stop Boeing 737-900 (739) 2:01 Effective 2024-10-27 through 2024-11-02
Mon-Thu,Sat,Sun 11:30 Denver (DEN) 13:31 Phoenix Sky Harbor (PHX) 3
UA 1866 Non-stop Boeing 737-900 (739) 2:01 Effective 2024-11-03 through 2024-11-21
Fri 11:30 Denver (DEN) 13:31 Phoenix Sky Harbor (PHX) 3
UA 1866 Non-stop Boeing 737-800 (738) 2:01 Effective 2024-11-08 through 2024-11-15
Daily 11:30 Denver (DEN) 13:31 Phoenix Sky Harbor (PHX) 3
UA 1866 Non-stop Boeing 737-900 (739) 2:01 Effective 2024-11-22 through 2024-12-02
Daily 12:15 Fort Lauderdale (FLL) 1 15:17 Newark Liberty, New York (EWR) C
UA 1866 Non-stop Boeing 737-900 (739) 3:02 Effective 2025-01-07 through 2025-02-12
Daily 12:15 Fort Lauderdale (FLL) 1 15:14 Newark Liberty, New York (EWR) C
UA 1866 Non-stop Boeing 737 MAX 8 (7M8) 2:59 Effective from 2025-02-13
Daily 12:56 Fort Lauderdale (FLL) 1 16:00 Newark Liberty, New York (EWR) C
UA 1866 Non-stop Boeing 737 MAX 8 (7M8) 3:04 Effective 2024-12-19 through 2025-01-06
Mon-Thu,Sat,Sun 14:05 Phoenix Sky Harbor (PHX) 3 20:44 Newark Liberty, New York (EWR) C
UA 1866 Non-stop Boeing 737-900 (739) 4:39 Effective 2024-12-03 through 2024-12-18
Fri 14:05 Phoenix Sky Harbor (PHX) 3 20:44 Newark Liberty, New York (EWR) C
UA 1866 Non-stop Boeing 737 MAX 8 (7M8) 4:39 Effective 2024-12-06 through 2024-12-13
Non-Direct Flights:
Mon-Sat 08:30 Saint Louis (STL) 1 13:26 Phoenix Sky Harbor (PHX) 3
UA 1866 1-stop Airbus A320 (320) 5:56 Effective 2024-12-03 through 2024-12-18
Sun 08:30 Saint Louis (STL) 1 13:26 Phoenix Sky Harbor (PHX) 3
UA 1866 1-stop Boeing 737-900 (739) 5:56 Effective 2024-12-08 through 2024-12-15
Tue 11:25 Denver (DEN) 20:44 Newark Liberty, New York (EWR) C
UA 1866 1-stop Boeing 737-800 (738) 7:19 Effective 2024-12-03 through 2024-12-17
Mon,Wed-Fri,Sun 11:25 Denver (DEN) 20:44 Newark Liberty, New York (EWR) C
UA 1866 1-stop Airbus A321neo (32Q) 7:19 Effective 2024-12-04 through 2024-12-18
Sat 11:25 Denver (DEN) 20:44 Newark Liberty, New York (EWR) C
UA 1866 1-stop Boeing 737-900 (739) 7:19 Effective 2024-12-07 through 2024-12-14
Mon-Sat 08:30 Saint Louis (STL) 1 20:44 Newark Liberty, New York (EWR) C
UA 1866 2-stop Airbus A320 (320) 11:14 Effective 2024-12-03 through 2024-12-18
Sun 08:30 Saint Louis (STL) 1 20:44 Newark Liberty, New York (EWR) C
UA 1866 2-stop Boeing 737-900 (739) 11:14 Effective 2024-12-08 through 2024-12-15
This flight number is listed as serving the following routes:


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United Airlines flight UA 1866: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA1866
08:30
Saint Louis (STL) 1

10:00
Denver (DEN)
Effective 2024-12-03 through 2024-12-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 2:30, non-stop
Airbus A320 (320)
United Airlines UA1866
08:30
Saint Louis (STL) 1

10:00
Denver (DEN)
Effective 2024-12-08 through 2024-12-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737-900 (739)
United Airlines UA1866
11:25
Denver (DEN)

13:26
Phoenix Sky Harbor (PHX) 3
Effective 2024-12-03 through 2024-12-17
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:01, non-stop
Boeing 737-800 (738)
United Airlines UA1866
11:25
Denver (DEN)

13:26
Phoenix Sky Harbor (PHX) 3
Effective 2024-12-04 through 2024-12-18
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:01, non-stop
Airbus A321neo (32Q)
United Airlines UA1866
11:25
Denver (DEN)

13:26
Phoenix Sky Harbor (PHX) 3
Effective 2024-12-07 through 2024-12-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:01, non-stop
Boeing 737-900 (739)
United Airlines UA1866
11:30
Denver (DEN)

12:26
Phoenix Sky Harbor (PHX) 3
Valid until 2024-09-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:56, non-stop
Boeing 737-900 (739)
United Airlines UA1866
11:30
Denver (DEN)

12:26
Phoenix Sky Harbor (PHX) 3
Operates only on 2024-09-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:56, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1866
11:30
Denver (DEN)

12:26
Phoenix Sky Harbor (PHX) 3
Effective 2024-09-07 through 2024-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:56, non-stop
Boeing 737-900 (739)
United Airlines UA1866
11:30
Denver (DEN)

12:26
Phoenix Sky Harbor (PHX) 3
Operates only on 2024-10-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:56, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA1866
11:30
Denver (DEN)

12:26
Phoenix Sky Harbor (PHX) 3
Effective 2024-10-07 through 2024-10-22
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:56, non-stop
Boeing 737-900 (739)
United Airlines UA1866
11:30
Denver (DEN)

12:26
Phoenix Sky Harbor (PHX) 3
Effective 2024-10-23 through 2024-10-24
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:56, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA1866
11:30
Denver (DEN)

12:26
Phoenix Sky Harbor (PHX) 3
Effective 2024-10-25 through 2024-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
Sun
-
Duration: 1:56, non-stop
Boeing 737-900 (739)
United Airlines UA1866
11:30
Denver (DEN)

12:31
Phoenix Sky Harbor (PHX) 3
Effective 2024-10-27 through 2024-11-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:01, non-stop
Boeing 737-900 (739)
United Airlines UA1866
11:30
Denver (DEN)

13:31
Phoenix Sky Harbor (PHX) 3
Effective 2024-11-03 through 2024-11-21
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Duration: 2:01, non-stop
Boeing 737-900 (739)
United Airlines UA1866
11:30
Denver (DEN)

13:31
Phoenix Sky Harbor (PHX) 3
Effective 2024-11-08 through 2024-11-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:01, non-stop
Boeing 737-800 (738)
United Airlines UA1866
11:30
Denver (DEN)

13:31
Phoenix Sky Harbor (PHX) 3
Effective 2024-11-22 through 2024-12-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:01, non-stop
Boeing 737-900 (739)
United Airlines UA1866
12:15
Fort Lauderdale (FLL) 1

15:17
Newark Liberty, New York (EWR) C
Effective 2025-01-07 through 2025-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:02, non-stop
Boeing 737-900 (739)
United Airlines UA1866
12:15
Fort Lauderdale (FLL) 1

15:14
Newark Liberty, New York (EWR) C
Effective from 2025-02-13
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:59, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA1866
12:56
Fort Lauderdale (FLL) 1

16:00
Newark Liberty, New York (EWR) C
Effective 2024-12-19 through 2025-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:04, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA1866
14:05
Phoenix Sky Harbor (PHX) 3

20:44
Newark Liberty, New York (EWR) C
Effective 2024-12-03 through 2024-12-18
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Duration: 4:39, non-stop
Boeing 737-900 (739)
United Airlines UA1866
14:05
Phoenix Sky Harbor (PHX) 3

20:44
Newark Liberty, New York (EWR) C
Effective 2024-12-06 through 2024-12-13
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 4:39, non-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
United Airlines UA1866
08:30
Saint Louis (STL) 1

13:26
Phoenix Sky Harbor (PHX) 3
Effective 2024-12-03 through 2024-12-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 5:56, 1-stop
Airbus A320 (320)
United Airlines UA1866
08:30
Saint Louis (STL) 1

13:26
Phoenix Sky Harbor (PHX) 3
Effective 2024-12-08 through 2024-12-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:56, 1-stop
Boeing 737-900 (739)
United Airlines UA1866
11:25
Denver (DEN)

20:44
Newark Liberty, New York (EWR) C
Effective 2024-12-03 through 2024-12-17
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 7:19, 1-stop
Boeing 737-800 (738)
United Airlines UA1866
11:25
Denver (DEN)

20:44
Newark Liberty, New York (EWR) C
Effective 2024-12-04 through 2024-12-18
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 7:19, 1-stop
Airbus A321neo (32Q)
United Airlines UA1866
11:25
Denver (DEN)

20:44
Newark Liberty, New York (EWR) C
Effective 2024-12-07 through 2024-12-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 7:19, 1-stop
Boeing 737-900 (739)
United Airlines UA1866
08:30
Saint Louis (STL) 1

20:44
Newark Liberty, New York (EWR) C
Effective 2024-12-03 through 2024-12-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 11:14, 2-stop
Airbus A320 (320)
United Airlines UA1866
08:30
Saint Louis (STL) 1

20:44
Newark Liberty, New York (EWR) C
Effective 2024-12-08 through 2024-12-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 11:14, 2-stop
Boeing 737-900 (739)
This flight number is listed as serving the following routes:
  • Denver (DEN) - Newark Liberty, New York (EWR)
  • Denver (DEN) - Phoenix Sky Harbor (PHX)
  • Fort Lauderdale (FLL) - Newark Liberty, New York (EWR)
  • Phoenix Sky Harbor (PHX) - Newark Liberty, New York (EWR)
  • Saint Louis (STL) - Denver (DEN)
  • Saint Louis (STL) - Newark Liberty, New York (EWR)
  • Saint Louis (STL) - Phoenix Sky Harbor (PHX)
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