United Airlines flight UA 1644: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 06:45 Luis Munoz Marin, San Juan (SJU) B 10:52 George Bush, Houston (IAH) C
UA 1644 Non-stop Boeing 737 MAX 9 (7M9) 5:07 Effective 2024-10-27 through 2024-11-02
Daily 06:45 Luis Munoz Marin, San Juan (SJU) B 10:52 George Bush, Houston (IAH) C
UA 1644 Non-stop Boeing 737-900 (739) 5:07 Effective 2025-03-09 through 2025-03-29
Daily 07:00 Luis Munoz Marin, San Juan (SJU) B 10:50 George Bush, Houston (IAH) C
UA 1644 Non-stop Boeing 737 MAX 9 (7M9) 4:50 Effective 2024-09-27 through 2024-10-26
Daily 07:00 Luis Munoz Marin, San Juan (SJU) B 10:51 George Bush, Houston (IAH) C
UA 1644 Non-stop Boeing 737-900 (739) 4:51 Effective from 2025-03-30
Daily 07:45 Luis Munoz Marin, San Juan (SJU) B 10:52 George Bush, Houston (IAH) C
UA 1644 Non-stop Boeing 737 MAX 9 (7M9) 5:07 Effective 2024-11-03 through 2025-01-06
Tue 07:45 Luis Munoz Marin, San Juan (SJU) B 10:52 George Bush, Houston (IAH) C
UA 1644 Non-stop Boeing 737-900 (739) 5:07 Operates only on 2025-01-07
Daily 07:45 Luis Munoz Marin, San Juan (SJU) B 10:54 George Bush, Houston (IAH) C
UA 1644 Non-stop Boeing 767-300 (763) 5:09 Effective 2025-01-08 through 2025-02-13
Daily 07:45 Luis Munoz Marin, San Juan (SJU) B 10:52 George Bush, Houston (IAH) C
UA 1644 Non-stop Boeing 737-900 (739) 5:07 Effective 2025-02-14 through 2025-03-08
Daily 12:10 George Bush, Houston (IAH) C 15:46 John Glenn Columbus (CMH)
UA 1644 Non-stop Airbus A319 (319) 2:36 Effective 2025-01-07 through 2025-02-12
Daily 12:15 George Bush, Houston (IAH) C 15:50 John Glenn Columbus (CMH)
UA 1644 Non-stop Boeing 737-800 (738) 2:35 Effective from 2025-02-13
Mon-Wed,Fri-Sun 18:30 Chicago O'Hare (ORD) 1 21:42 Burlington (BTV)
UA 1644 Non-stop Boeing 737-700 (73G) 2:12 Valid until 2024-09-07
Thu 18:30 Chicago O'Hare (ORD) 1 21:42 Burlington (BTV)
UA 1644 Non-stop Boeing 737 MAX 8 (7M8) 2:12 Effective 2024-09-05 through 2024-09-12
Sun 18:30 Chicago O'Hare (ORD) 1 21:42 Burlington (BTV)
UA 1644 Non-stop Airbus A319 (319) 2:12 Effective 2024-09-08 through 2024-09-15
Mon-Wed,Fri,Sat 18:30 Chicago O'Hare (ORD) 1 21:42 Burlington (BTV)
UA 1644 Non-stop Boeing 737-700 (73G) 2:12 Effective 2024-09-09 through 2024-09-25
Thu,Sun 18:30 Chicago O'Hare (ORD) 1 21:42 Burlington (BTV)
UA 1644 Non-stop Airbus A319 (319) 2:12 Effective 2024-09-19 through 2024-09-22
Non-Direct Flights:
Daily 06:45 Luis Munoz Marin, San Juan (SJU) B 15:50 John Glenn Columbus (CMH)
UA 1644 1-stop Boeing 737-900 (739) 9:05 Effective 2025-03-09 through 2025-03-29
Daily 07:00 Luis Munoz Marin, San Juan (SJU) B 15:50 John Glenn Columbus (CMH)
UA 1644 1-stop Boeing 737-900 (739) 8:50 Effective from 2025-03-30
Tue 07:45 Luis Munoz Marin, San Juan (SJU) B 15:46 John Glenn Columbus (CMH)
UA 1644 1-stop Boeing 737-900 (739) 9:01 Operates only on 2025-01-07
Daily 07:45 Luis Munoz Marin, San Juan (SJU) B 15:46 John Glenn Columbus (CMH)
UA 1644 1-stop Boeing 767-300 (763) 9:01 Effective 2025-01-08 through 2025-02-12
Thu 07:45 Luis Munoz Marin, San Juan (SJU) B 15:50 John Glenn Columbus (CMH)
UA 1644 1-stop Boeing 767-300 (763) 9:05 Operates only on 2025-02-13
Daily 07:45 Luis Munoz Marin, San Juan (SJU) B 15:50 John Glenn Columbus (CMH)
UA 1644 1-stop Boeing 737-900 (739) 9:05 Effective 2025-02-14 through 2025-03-08
This flight number is listed as serving the following routes:


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United Airlines flight UA 1644: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA1644
06:45
Luis Munoz Marin, San Juan (SJU) B

10:52
George Bush, Houston (IAH) C
Effective 2024-10-27 through 2024-11-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:07, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1644
06:45
Luis Munoz Marin, San Juan (SJU) B

10:52
George Bush, Houston (IAH) C
Effective 2025-03-09 through 2025-03-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:07, non-stop
Boeing 737-900 (739)
United Airlines UA1644
07:00
Luis Munoz Marin, San Juan (SJU) B

10:50
George Bush, Houston (IAH) C
Effective 2024-09-27 through 2024-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:50, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1644
07:00
Luis Munoz Marin, San Juan (SJU) B

10:51
George Bush, Houston (IAH) C
Effective from 2025-03-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:51, non-stop
Boeing 737-900 (739)
United Airlines UA1644
07:45
Luis Munoz Marin, San Juan (SJU) B

10:52
George Bush, Houston (IAH) C
Effective 2024-11-03 through 2025-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:07, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1644
07:45
Luis Munoz Marin, San Juan (SJU) B

10:52
George Bush, Houston (IAH) C
Operates only on 2025-01-07
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:07, non-stop
Boeing 737-900 (739)
United Airlines UA1644
07:45
Luis Munoz Marin, San Juan (SJU) B

10:54
George Bush, Houston (IAH) C
Effective 2025-01-08 through 2025-02-13
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:09, non-stop
Boeing 767-300 (763)
United Airlines UA1644
07:45
Luis Munoz Marin, San Juan (SJU) B

10:52
George Bush, Houston (IAH) C
Effective 2025-02-14 through 2025-03-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:07, non-stop
Boeing 737-900 (739)
United Airlines UA1644
12:10
George Bush, Houston (IAH) C

15:46
John Glenn Columbus (CMH)
Effective 2025-01-07 through 2025-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:36, non-stop
Airbus A319 (319)
United Airlines UA1644
12:15
George Bush, Houston (IAH) C

15:50
John Glenn Columbus (CMH)
Effective from 2025-02-13
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:35, non-stop
Boeing 737-800 (738)
United Airlines UA1644
18:30
Chicago O'Hare (ORD) 1

21:42
Burlington (BTV)
Valid until 2024-09-07
Mon
Tue
Wed
Thu
-
Fri
Sat
Sun
Duration: 2:12, non-stop
Boeing 737-700 (73G)
United Airlines UA1644
18:30
Chicago O'Hare (ORD) 1

21:42
Burlington (BTV)
Effective 2024-09-05 through 2024-09-12
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:12, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA1644
18:30
Chicago O'Hare (ORD) 1

21:42
Burlington (BTV)
Effective 2024-09-08 through 2024-09-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:12, non-stop
Airbus A319 (319)
United Airlines UA1644
18:30
Chicago O'Hare (ORD) 1

21:42
Burlington (BTV)
Effective 2024-09-09 through 2024-09-25
Mon
Tue
Wed
Thu
-
Fri
Sat
Sun
-
Duration: 2:12, non-stop
Boeing 737-700 (73G)
United Airlines UA1644
18:30
Chicago O'Hare (ORD) 1

21:42
Burlington (BTV)
Effective 2024-09-19 through 2024-09-22
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
Duration: 2:12, non-stop
Airbus A319 (319)
Non-Direct Flights:
United Airlines UA1644
06:45
Luis Munoz Marin, San Juan (SJU) B

15:50
John Glenn Columbus (CMH)
Effective 2025-03-09 through 2025-03-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 9:05, 1-stop
Boeing 737-900 (739)
United Airlines UA1644
07:00
Luis Munoz Marin, San Juan (SJU) B

15:50
John Glenn Columbus (CMH)
Effective from 2025-03-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:50, 1-stop
Boeing 737-900 (739)
United Airlines UA1644
07:45
Luis Munoz Marin, San Juan (SJU) B

15:46
John Glenn Columbus (CMH)
Operates only on 2025-01-07
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 9:01, 1-stop
Boeing 737-900 (739)
United Airlines UA1644
07:45
Luis Munoz Marin, San Juan (SJU) B

15:46
John Glenn Columbus (CMH)
Effective 2025-01-08 through 2025-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 9:01, 1-stop
Boeing 767-300 (763)
United Airlines UA1644
07:45
Luis Munoz Marin, San Juan (SJU) B

15:50
John Glenn Columbus (CMH)
Operates only on 2025-02-13
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 9:05, 1-stop
Boeing 767-300 (763)
United Airlines UA1644
07:45
Luis Munoz Marin, San Juan (SJU) B

15:50
John Glenn Columbus (CMH)
Effective 2025-02-14 through 2025-03-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 9:05, 1-stop
Boeing 737-900 (739)
This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Burlington (BTV)
  • George Bush, Houston (IAH) - John Glenn Columbus (CMH)
  • Luis Munoz Marin, San Juan (SJU) - George Bush, Houston (IAH)
  • Luis Munoz Marin, San Juan (SJU) - John Glenn Columbus (CMH)
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