United Airlines flight UA 1720: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 07:45 Denver (DEN) 11:15 Houston George Bush (IAH) C
UA 1720 Non-stop Boeing 777 (777) 2:30 Valid until 2026-01-05
Daily 07:45 Denver (DEN) 11:20 Houston George Bush (IAH) C
UA 1720 Non-stop Airbus A321neo (32Q) 2:35 Effective 2026-01-06 through 2026-02-11
Thu 07:45 Denver (DEN) 11:15 Houston George Bush (IAH) C
UA 1720 Non-stop Boeing 757-200 (752) 2:30 Operates only on 2026-02-12
Daily 07:45 Denver (DEN) 11:15 Houston George Bush (IAH) C
UA 1720 Non-stop Boeing 777 (777) 2:30 Effective 2026-02-13 through 2026-03-07
Daily 07:45 Denver (DEN) 11:15 Houston George Bush (IAH) C
UA 1720 Non-stop Airbus A321neo (32Q) 2:30 Effective 2026-03-08 through 2026-03-28
Daily 07:45 Denver (DEN) 11:13 Houston George Bush (IAH) C
UA 1720 Non-stop Boeing 777 (777) 2:28 Effective 2026-03-29 through 2026-04-29
Daily 07:50 Denver (DEN) 11:10 Houston George Bush (IAH) C
UA 1720 Non-stop Boeing 757-300 (753) 2:20 Effective 2026-04-30 through 2026-05-20
Daily 07:50 Denver (DEN) 11:10 Houston George Bush (IAH) C
UA 1720 Non-stop Airbus A321neo (32Q) 2:20 Effective from 2026-05-21
Daily 11:55 Houston George Bush (IAH) C 16:02 Baltimore (BWI)
UA 1720 Non-stop Boeing 737-800 (738) 3:07 Effective 2026-03-29 through 2026-04-29
Mon-Fri,Sun 11:57 Houston George Bush (IAH) C 15:58 Baltimore (BWI)
UA 1720 Non-stop Boeing 737-900 (739) 3:01 Effective 2026-03-05 through 2026-03-27
Daily 12:08 Houston George Bush (IAH) C 16:10 Baltimore (BWI)
UA 1720 Non-stop Airbus A319 (319) 3:02 Effective 2026-02-12 through 2026-03-04
Daily 12:20 Houston George Bush (IAH) C 16:25 Baltimore (BWI)
UA 1720 Non-stop Boeing 737-900 (739) 3:05 Effective 2026-04-30 through 2026-05-20
Daily 12:20 Houston George Bush (IAH) C 16:25 Baltimore (BWI)
UA 1720 Non-stop Boeing 737-800 (738) 3:05 Effective from 2026-05-21
Sat 13:31 Houston George Bush (IAH) C 17:22 Pittsburgh (PIT)
UA 1720 Non-stop Airbus A320 (320) 2:51 Effective 2026-03-07 through 2026-03-28
Non-Direct Flights:
Thu 07:45 Denver (DEN) 16:10 Baltimore (BWI)
UA 1720 1-stop Boeing 757-200 (752) 6:25 Operates only on 2026-02-12
Daily 07:45 Denver (DEN) 16:10 Baltimore (BWI)
UA 1720 1-stop Boeing 777 (777) 6:25 Effective 2026-02-13 through 2026-03-04
Thu,Fri 07:45 Denver (DEN) 15:58 Baltimore (BWI)
UA 1720 1-stop Boeing 777 (777) 6:13 Effective 2026-03-05 through 2026-03-06
Sat 07:45 Denver (DEN) 17:22 Pittsburgh (PIT)
UA 1720 1-stop Boeing 777 (777) 7:37 Operates only on 2026-03-07
Mon-Fri,Sun 07:45 Denver (DEN) 15:58 Baltimore (BWI)
UA 1720 1-stop Airbus A321neo (32Q) 6:13 Effective 2026-03-08 through 2026-03-27
Sat 07:45 Denver (DEN) 17:22 Pittsburgh (PIT)
UA 1720 1-stop Airbus A321neo (32Q) 7:37 Effective 2026-03-14 through 2026-03-28
Daily 07:45 Denver (DEN) 16:02 Baltimore (BWI)
UA 1720 1-stop Boeing 777 (777) 6:17 Effective 2026-03-29 through 2026-04-29
Daily 07:50 Denver (DEN) 16:25 Baltimore (BWI)
UA 1720 1-stop Boeing 757-300 (753) 6:35 Effective 2026-04-30 through 2026-05-20
Daily 07:50 Denver (DEN) 16:25 Baltimore (BWI)
UA 1720 1-stop Airbus A321neo (32Q) 6:35 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 1720: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA1720
07:45
Denver (DEN)

11:15
Houston George Bush (IAH) C
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:30, non-stop
Boeing 777 (777)
Direct Flights:
United Airlines UA1720
07:45
Denver (DEN)

11:20
Houston George Bush (IAH) C
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:35, non-stop
Airbus A321neo (32Q)
Direct Flights:
United Airlines UA1720
07:45
Denver (DEN)

11:15
Houston George Bush (IAH) C
Operates only on 2026-02-12
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:30, non-stop
Boeing 757-200 (752)
Direct Flights:
United Airlines UA1720
07:45
Denver (DEN)

11:15
Houston George Bush (IAH) C
Effective 2026-02-13 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:30, non-stop
Boeing 777 (777)
Direct Flights:
United Airlines UA1720
07:45
Denver (DEN)

11:15
Houston George Bush (IAH) C
Effective 2026-03-08 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:30, non-stop
Airbus A321neo (32Q)
Direct Flights:
United Airlines UA1720
07:45
Denver (DEN)

11:13
Houston George Bush (IAH) C
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:28, non-stop
Boeing 777 (777)
Direct Flights:
United Airlines UA1720
07:50
Denver (DEN)

11:10
Houston George Bush (IAH) C
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:20, non-stop
Boeing 757-300 (753)
Direct Flights:
United Airlines UA1720
07:50
Denver (DEN)

11:10
Houston George Bush (IAH) C
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:20, non-stop
Airbus A321neo (32Q)
Direct Flights:
United Airlines UA1720
11:55
Houston George Bush (IAH) C

16:02
Baltimore (BWI)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:07, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA1720
11:57
Houston George Bush (IAH) C

15:58
Baltimore (BWI)
Effective 2026-03-05 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 3:01, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1720
12:08
Houston George Bush (IAH) C

16:10
Baltimore (BWI)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:02, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA1720
12:20
Houston George Bush (IAH) C

16:25
Baltimore (BWI)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:05, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1720
12:20
Houston George Bush (IAH) C

16:25
Baltimore (BWI)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:05, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA1720
13:31
Houston George Bush (IAH) C

17:22
Pittsburgh (PIT)
Effective 2026-03-07 through 2026-03-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:51, non-stop
Airbus A320 (320)
Non-Direct Flights:
United Airlines UA1720
07:45
Denver (DEN)

16:10
Baltimore (BWI)
Operates only on 2026-02-12
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 6:25, 1-stop
Boeing 757-200 (752)
Non-Direct Flights:
United Airlines UA1720
07:45
Denver (DEN)

16:10
Baltimore (BWI)
Effective 2026-02-13 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:25, 1-stop
Boeing 777 (777)
Non-Direct Flights:
United Airlines UA1720
07:45
Denver (DEN)

15:58
Baltimore (BWI)
Effective 2026-03-05 through 2026-03-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 6:13, 1-stop
Boeing 777 (777)
Non-Direct Flights:
United Airlines UA1720
07:45
Denver (DEN)

17:22
Pittsburgh (PIT)
Operates only on 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 7:37, 1-stop
Boeing 777 (777)
Non-Direct Flights:
United Airlines UA1720
07:45
Denver (DEN)

15:58
Baltimore (BWI)
Effective 2026-03-08 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 6:13, 1-stop
Airbus A321neo (32Q)
Non-Direct Flights:
United Airlines UA1720
07:45
Denver (DEN)

17:22
Pittsburgh (PIT)
Effective 2026-03-14 through 2026-03-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 7:37, 1-stop
Airbus A321neo (32Q)
Non-Direct Flights:
United Airlines UA1720
07:45
Denver (DEN)

16:02
Baltimore (BWI)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:17, 1-stop
Boeing 777 (777)
Non-Direct Flights:
United Airlines UA1720
07:50
Denver (DEN)

16:25
Baltimore (BWI)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:35, 1-stop
Boeing 757-300 (753)
Non-Direct Flights:
United Airlines UA1720
07:50
Denver (DEN)

16:25
Baltimore (BWI)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:35, 1-stop
Airbus A321neo (32Q)
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Parallax here -
This flight number is listed as serving the following routes:
  • Denver (DEN) - Baltimore (BWI)
  • Denver (DEN) - Houston George Bush (IAH)
  • Denver (DEN) - Pittsburgh (PIT)
  • Houston George Bush (IAH) - Baltimore (BWI)
  • Houston George Bush (IAH) - Pittsburgh (PIT)
All United Airlines flights
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