United Airlines flight UA 1821: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sun 06:56 New Orleans (MSY) 08:23 Houston George Bush (IAH) C
UA 1821 Non-stop Boeing 737-900 (739) 1:27 Operates only on 2026-01-04
Mon-Sat 07:00 New Orleans (MSY) 08:27 Houston George Bush (IAH) C
UA 1821 Non-stop Boeing 737-900 (739) 1:27 Valid until 2026-01-10
Daily 07:00 New Orleans (MSY) 08:27 Houston George Bush (IAH) C
UA 1821 Non-stop Boeing 737-900 (739) 1:27 Effective 2026-01-11 through 2026-02-03
Daily 07:00 New Orleans (MSY) 08:27 Houston George Bush (IAH) C
UA 1821 Non-stop Boeing 737-900 (739) 1:27 Effective 2026-02-05 through 2026-02-11
Daily 07:00 New Orleans (MSY) 08:25 Houston George Bush (IAH) C
UA 1821 Non-stop Boeing 737-900 (739) 1:25 Effective 2026-02-12 through 2026-03-04
Mon 11:58 Houston George Bush (IAH) C 15:38 Raleigh/Durham (RDU) 2
UA 1821 Non-stop Boeing 737-900 (739) 2:40 Operates only on 2026-01-19
Mon,Tue,Thu-Sun 11:59 Houston George Bush (IAH) C 15:40 Raleigh/Durham (RDU) 2
UA 1821 Non-stop Boeing 737-900 (739) 2:41 Effective 2026-02-12 through 2026-02-24
Wed 11:59 Houston George Bush (IAH) C 15:41 Raleigh/Durham (RDU) 2
UA 1821 Non-stop Airbus A319 (319) 2:42 Operates only on 2026-02-18
Daily 11:59 Houston George Bush (IAH) C 15:40 Raleigh/Durham (RDU) 2
UA 1821 Non-stop Boeing 737-900 (739) 2:41 Effective 2026-02-25 through 2026-03-04
Mon 12:00 Houston George Bush (IAH) C 15:41 Raleigh/Durham (RDU) 2
UA 1821 Non-stop Boeing 737-800 (738) 2:41 Operates only on 2026-01-05
Mon-Fri,Sun 12:00 Houston George Bush (IAH) C 15:40 Raleigh/Durham (RDU) 2
UA 1821 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-01-06 through 2026-01-18
Sat 12:00 Houston George Bush (IAH) C 15:40 Raleigh/Durham (RDU) 2
UA 1821 Non-stop Boeing 737-800 (738) 2:40 Effective 2026-01-10 through 2026-02-07
Mon-Fri,Sun 12:00 Houston George Bush (IAH) C 15:40 Raleigh/Durham (RDU) 2
UA 1821 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-01-20 through 2026-02-05
Fri 12:00 Houston George Bush (IAH) C 15:40 Raleigh/Durham (RDU) 2
UA 1821 Non-stop Airbus A319 (319) 2:40 Operates only on 2026-02-06
Mon-Wed,Sun 12:00 Houston George Bush (IAH) C 15:40 Raleigh/Durham (RDU) 2
UA 1821 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-02-08 through 2026-02-11
Daily 12:03 Houston George Bush (IAH) C 15:45 Raleigh/Durham (RDU) 2
UA 1821 Non-stop Airbus A320 (320) 2:42 Effective 2026-03-05 through 2026-03-28
Mon,Thu-Sat 12:05 Houston George Bush (IAH) C 15:46 Raleigh/Durham (RDU) 2
UA 1821 Non-stop Airbus A319 (319) 2:41 Valid until 2026-01-03
Wed,Sun 12:05 Houston George Bush (IAH) C 15:46 Raleigh/Durham (RDU) 2
UA 1821 Non-stop Airbus A320 (320) 2:41 Valid until 2026-01-04
Daily 12:05 Houston George Bush (IAH) C 15:40 Raleigh/Durham (RDU) 2
UA 1821 Non-stop Boeing 737-800 (738) 2:35 Effective from 2026-04-30
Daily 12:10 Houston George Bush (IAH) C 15:53 Raleigh/Durham (RDU) 2
UA 1821 Non-stop Airbus A319 (319) 2:43 Effective 2026-03-29 through 2026-04-29
Daily 19:08 Raleigh/Durham (RDU) 2 20:57 Newark Liberty, New York (EWR) A
UA 1821 Non-stop Airbus A319 (319) 1:49 Valid until 2026-01-05
Non-Direct Flights:
Sun 06:56 New Orleans (MSY) 15:46 Raleigh/Durham (RDU) 2
UA 1821 1-stop Boeing 737-900 (739) 7:50 Operates only on 2026-01-04
Mon,Wed-Sat 07:00 New Orleans (MSY) 15:46 Raleigh/Durham (RDU) 2
UA 1821 1-stop Boeing 737-900 (739) 7:46 Valid until 2026-01-03
Mon 07:00 New Orleans (MSY) 15:41 Raleigh/Durham (RDU) 2
UA 1821 1-stop Boeing 737-900 (739) 7:41 Operates only on 2026-01-05
Daily 07:00 New Orleans (MSY) 15:40 Raleigh/Durham (RDU) 2
UA 1821 1-stop Boeing 737-900 (739) 7:40 Effective 2026-01-06 through 2026-01-18
Mon 07:00 New Orleans (MSY) 15:38 Raleigh/Durham (RDU) 2
UA 1821 1-stop Boeing 737-900 (739) 7:38 Operates only on 2026-01-19
Daily 07:00 New Orleans (MSY) 15:40 Raleigh/Durham (RDU) 2
UA 1821 1-stop Boeing 737-900 (739) 7:40 Effective 2026-01-20 through 2026-02-03
Daily 07:00 New Orleans (MSY) 15:40 Raleigh/Durham (RDU) 2
UA 1821 1-stop Boeing 737-900 (739) 7:40 Effective 2026-02-05 through 2026-02-11
Mon,Tue,Thu-Sun 07:00 New Orleans (MSY) 15:40 Raleigh/Durham (RDU) 2
UA 1821 1-stop Boeing 737-900 (739) 7:40 Effective 2026-02-12 through 2026-02-24
Wed 07:00 New Orleans (MSY) 15:41 Raleigh/Durham (RDU) 2
UA 1821 1-stop Boeing 737-900 (739) 7:41 Operates only on 2026-02-18
Daily 07:00 New Orleans (MSY) 15:40 Raleigh/Durham (RDU) 2
UA 1821 1-stop Boeing 737-900 (739) 7:40 Effective 2026-02-25 through 2026-03-04
Mon 12:00 Houston George Bush (IAH) C 20:57 Newark Liberty, New York (EWR) A
UA 1821 1-stop Boeing 737-800 (738) 7:57 Operates only on 2026-01-05
Mon,Thu-Sat 12:05 Houston George Bush (IAH) C 20:57 Newark Liberty, New York (EWR) A
UA 1821 1-stop Airbus A319 (319) 7:52 Valid until 2026-01-03
Wed,Sun 12:05 Houston George Bush (IAH) C 20:57 Newark Liberty, New York (EWR) A
UA 1821 1-stop Airbus A320 (320) 7:52 Valid until 2026-01-04
Sun 06:56 New Orleans (MSY) 20:57 Newark Liberty, New York (EWR) A
UA 1821 2-stop Boeing 737-900 (739) 13:01 Operates only on 2026-01-04
Mon,Wed-Sat 07:00 New Orleans (MSY) 20:57 Newark Liberty, New York (EWR) A
UA 1821 2-stop Boeing 737-900 (739) 12:57 Valid until 2026-01-05
This flight number is listed as serving the following routes:


Feedback - Disclaimer - Privacy
FlightMapper.net Flight Search Countries Airlines
LANGUAGES
United Airlines flight UA 1821: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA1821
06:56
New Orleans (MSY)

08:23
Houston George Bush (IAH) C
Operates only on 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:27, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1821
07:00
New Orleans (MSY)

08:27
Houston George Bush (IAH) C
Valid until 2026-01-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 1:27, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1821
07:00
New Orleans (MSY)

08:27
Houston George Bush (IAH) C
Effective 2026-01-11 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:27, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1821
07:00
New Orleans (MSY)

08:27
Houston George Bush (IAH) C
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:27, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1821
07:00
New Orleans (MSY)

08:25
Houston George Bush (IAH) C
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:25, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1821
11:58
Houston George Bush (IAH) C

15:38
Raleigh/Durham (RDU) 2
Operates only on 2026-01-19
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:40, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1821
11:59
Houston George Bush (IAH) C

15:40
Raleigh/Durham (RDU) 2
Effective 2026-02-12 through 2026-02-24
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Duration: 2:41, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1821
11:59
Houston George Bush (IAH) C

15:41
Raleigh/Durham (RDU) 2
Operates only on 2026-02-18
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:42, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA1821
11:59
Houston George Bush (IAH) C

15:40
Raleigh/Durham (RDU) 2
Effective 2026-02-25 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:41, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1821
12:00
Houston George Bush (IAH) C

15:41
Raleigh/Durham (RDU) 2
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:41, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA1821
12:00
Houston George Bush (IAH) C

15:40
Raleigh/Durham (RDU) 2
Effective 2026-01-06 through 2026-01-18
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1821
12:00
Houston George Bush (IAH) C

15:40
Raleigh/Durham (RDU) 2
Effective 2026-01-10 through 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:40, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA1821
12:00
Houston George Bush (IAH) C

15:40
Raleigh/Durham (RDU) 2
Effective 2026-01-20 through 2026-02-05
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1821
12:00
Houston George Bush (IAH) C

15:40
Raleigh/Durham (RDU) 2
Operates only on 2026-02-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:40, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA1821
12:00
Houston George Bush (IAH) C

15:40
Raleigh/Durham (RDU) 2
Effective 2026-02-08 through 2026-02-11
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1821
12:03
Houston George Bush (IAH) C

15:45
Raleigh/Durham (RDU) 2
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:42, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA1821
12:05
Houston George Bush (IAH) C

15:46
Raleigh/Durham (RDU) 2
Valid until 2026-01-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
-
Duration: 2:41, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA1821
12:05
Houston George Bush (IAH) C

15:46
Raleigh/Durham (RDU) 2
Valid until 2026-01-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:41, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA1821
12:05
Houston George Bush (IAH) C

15:40
Raleigh/Durham (RDU) 2
Effective from 2026-04-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:35, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA1821
12:10
Houston George Bush (IAH) C

15:53
Raleigh/Durham (RDU) 2
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:43, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA1821
19:08
Raleigh/Durham (RDU) 2

20:57
Newark Liberty, New York (EWR) A
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:49, non-stop
Airbus A319 (319)
Non-Direct Flights:
United Airlines UA1821
06:56
New Orleans (MSY)

15:46
Raleigh/Durham (RDU) 2
Operates only on 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 7:50, 1-stop
Boeing 737-900 (739)
Non-Direct Flights:
United Airlines UA1821
07:00
New Orleans (MSY)

15:46
Raleigh/Durham (RDU) 2
Valid until 2026-01-03
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
-
Duration: 7:46, 1-stop
Boeing 737-900 (739)
Non-Direct Flights:
United Airlines UA1821
07:00
New Orleans (MSY)

15:41
Raleigh/Durham (RDU) 2
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 7:41, 1-stop
Boeing 737-900 (739)
Non-Direct Flights:
United Airlines UA1821
07:00
New Orleans (MSY)

15:40
Raleigh/Durham (RDU) 2
Effective 2026-01-06 through 2026-01-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 7:40, 1-stop
Boeing 737-900 (739)
Non-Direct Flights:
United Airlines UA1821
07:00
New Orleans (MSY)

15:38
Raleigh/Durham (RDU) 2
Operates only on 2026-01-19
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 7:38, 1-stop
Boeing 737-900 (739)
Non-Direct Flights:
United Airlines UA1821
07:00
New Orleans (MSY)

15:40
Raleigh/Durham (RDU) 2
Effective 2026-01-20 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 7:40, 1-stop
Boeing 737-900 (739)
Non-Direct Flights:
United Airlines UA1821
07:00
New Orleans (MSY)

15:40
Raleigh/Durham (RDU) 2
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 7:40, 1-stop
Boeing 737-900 (739)
Non-Direct Flights:
United Airlines UA1821
07:00
New Orleans (MSY)

15:40
Raleigh/Durham (RDU) 2
Effective 2026-02-12 through 2026-02-24
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Duration: 7:40, 1-stop
Boeing 737-900 (739)
Non-Direct Flights:
United Airlines UA1821
07:00
New Orleans (MSY)

15:41
Raleigh/Durham (RDU) 2
Operates only on 2026-02-18
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 7:41, 1-stop
Boeing 737-900 (739)
Non-Direct Flights:
United Airlines UA1821
07:00
New Orleans (MSY)

15:40
Raleigh/Durham (RDU) 2
Effective 2026-02-25 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 7:40, 1-stop
Boeing 737-900 (739)
Non-Direct Flights:
United Airlines UA1821
12:00
Houston George Bush (IAH) C

20:57
Newark Liberty, New York (EWR) A
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 7:57, 1-stop
Boeing 737-800 (738)
Non-Direct Flights:
United Airlines UA1821
12:05
Houston George Bush (IAH) C

20:57
Newark Liberty, New York (EWR) A
Valid until 2026-01-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
-
Duration: 7:52, 1-stop
Airbus A319 (319)
Non-Direct Flights:
United Airlines UA1821
12:05
Houston George Bush (IAH) C

20:57
Newark Liberty, New York (EWR) A
Valid until 2026-01-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 7:52, 1-stop
Airbus A320 (320)
Non-Direct Flights:
United Airlines UA1821
06:56
New Orleans (MSY)

20:57
Newark Liberty, New York (EWR) A
Operates only on 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 13:01, 2-stop
Boeing 737-900 (739)
Non-Direct Flights:
United Airlines UA1821
07:00
New Orleans (MSY)

20:57
Newark Liberty, New York (EWR) A
Valid until 2026-01-05
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
-
Duration: 12:57, 2-stop
Boeing 737-900 (739)
This flight number is listed as serving the following routes:
  • Houston George Bush (IAH) - Newark Liberty, New York (EWR)
  • Houston George Bush (IAH) - Raleigh/Durham (RDU)
  • New Orleans (MSY) - Houston George Bush (IAH)
  • New Orleans (MSY) - Newark Liberty, New York (EWR)
  • New Orleans (MSY) - Raleigh/Durham (RDU)
  • Raleigh/Durham (RDU) - Newark Liberty, New York (EWR)
All United Airlines flights
Feedback     -     Disclaimer     -     Privacy