United Airlines flight UA 1918: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 11:30 Phoenix Sky Harbor (PHX) 3 14:17 Denver (DEN)
UA 1918 Non-stop Boeing 737-800 (738) 1:47 Effective 2025-08-19 through 2025-09-24
Mon-Fri,Sun 11:43 Phoenix Sky Harbor (PHX) 3 14:34 Denver (DEN)
UA 1918 Non-stop Boeing 737-900 (739) 1:51 Effective 2025-09-25 through 2025-10-24
Daily 11:49 Guanacaste (LIR) 17:17 Denver (DEN)
UA 1918 Non-stop Boeing 737 MAX 8 (7M8) 5:28 Valid until 2025-05-05
Mon,Thu-Sun 11:49 Guanacaste (LIR) 17:17 Denver (DEN)
UA 1918 Non-stop Boeing 737 MAX 8 (7M8) 5:28 Effective 2025-05-08 through 2025-05-26
Daily 11:49 Guanacaste (LIR) 17:17 Denver (DEN)
UA 1918 Non-stop Boeing 737 MAX 8 (7M8) 5:28 Effective 2025-05-27 through 2025-08-18
Sat 11:49 Guanacaste (LIR) 17:06 Denver (DEN)
UA 1918 Non-stop Boeing 737-800 (738) 5:17 Effective 2025-09-27 through 2025-10-25
Daily 11:50 Guanacaste (LIR) 17:20 Denver (DEN)
UA 1918 Non-stop Boeing 737-900 (739) 5:30 Effective 2025-10-26 through 2025-11-01
Daily 12:50 Guanacaste (LIR) 17:20 Denver (DEN)
UA 1918 Non-stop Boeing 737-900 (739) 5:30 Effective from 2025-11-02
Daily 17:53 Denver (DEN) 21:13 George Bush, Houston (IAH) C
UA 1918 Non-stop Airbus A321neo (32Q) 2:20 Effective 2025-08-19 through 2025-09-24
Mon-Fri,Sun 17:53 Denver (DEN) 21:17 George Bush, Houston (IAH) C
UA 1918 Non-stop Airbus A321neo (32Q) 2:24 Effective 2025-09-25 through 2025-10-24
Non-Direct Flights:
Daily 11:30 Phoenix Sky Harbor (PHX) 3 21:13 George Bush, Houston (IAH) C
UA 1918 1-stop Boeing 737-800 (738) 7:43 Effective 2025-08-19 through 2025-09-24
Mon-Fri,Sun 11:43 Phoenix Sky Harbor (PHX) 3 21:17 George Bush, Houston (IAH) C
UA 1918 1-stop Boeing 737-900 (739) 7:34 Effective 2025-09-25 through 2025-10-24
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This flight number is listed as serving the following routes:


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United Airlines flight UA 1918: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA1918
11:30
Phoenix Sky Harbor (PHX) 3

14:17
Denver (DEN)
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:47, non-stop
Boeing 737-800 (738)
United Airlines UA1918
11:43
Phoenix Sky Harbor (PHX) 3

14:34
Denver (DEN)
Effective 2025-09-25 through 2025-10-24
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:51, non-stop
Boeing 737-900 (739)
United Airlines UA1918
11:49
Guanacaste (LIR)

17:17
Denver (DEN)
Valid until 2025-05-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:28, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA1918
11:49
Guanacaste (LIR)

17:17
Denver (DEN)
Effective 2025-05-08 through 2025-05-26
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
Duration: 5:28, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA1918
11:49
Guanacaste (LIR)

17:17
Denver (DEN)
Effective 2025-05-27 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:28, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA1918
11:49
Guanacaste (LIR)

17:06
Denver (DEN)
Effective 2025-09-27 through 2025-10-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:17, non-stop
Boeing 737-800 (738)
United Airlines UA1918
11:50
Guanacaste (LIR)

17:20
Denver (DEN)
Effective 2025-10-26 through 2025-11-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:30, non-stop
Boeing 737-900 (739)
United Airlines UA1918
12:50
Guanacaste (LIR)

17:20
Denver (DEN)
Effective from 2025-11-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:30, non-stop
Boeing 737-900 (739)
United Airlines UA1918
17:53
Denver (DEN)

21:13
George Bush, Houston (IAH) C
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:20, non-stop
Airbus A321neo (32Q)
United Airlines UA1918
17:53
Denver (DEN)

21:17
George Bush, Houston (IAH) C
Effective 2025-09-25 through 2025-10-24
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:24, non-stop
Airbus A321neo (32Q)
Non-Direct Flights:
United Airlines UA1918
11:30
Phoenix Sky Harbor (PHX) 3

21:13
George Bush, Houston (IAH) C
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 7:43, 1-stop
Boeing 737-800 (738)
United Airlines UA1918
11:43
Phoenix Sky Harbor (PHX) 3

21:17
George Bush, Houston (IAH) C
Effective 2025-09-25 through 2025-10-24
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 7:34, 1-stop
Boeing 737-900 (739)
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This flight number is listed as serving the following routes:
  • Denver (DEN) - George Bush, Houston (IAH)
  • Guanacaste (LIR) - Denver (DEN)
  • Phoenix Sky Harbor (PHX) - Denver (DEN)
  • Phoenix Sky Harbor (PHX) - George Bush, Houston (IAH)
All United Airlines flights
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