United Airlines flight UA 400: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sun 07:25 O'Hare, Chicago (ORD) 1 10:06 Buffalo (BUF)
UA 400 Non-stop Airbus A319 (319) 1:41 Effective 2024-02-18 through 2024-03-03
Tue-Sat 07:30 George Bush, Houston (IAH) C 08:31 Austin (AUS)
UA 400 Non-stop Airbus A319 (319) 1:01 Effective 2024-01-09 through 2024-01-27
Sun 07:30 George Bush, Houston (IAH) C 08:31 Austin (AUS)
UA 400 Non-stop Boeing 737-800 (738) 1:01 Effective 2024-01-14 through 2024-02-11
Mon 07:30 George Bush, Houston (IAH) C 08:31 Austin (AUS)
UA 400 Non-stop Airbus A320 (320) 1:01 Effective 2024-01-15 through 2024-01-22
Mon-Sat 07:30 George Bush, Houston (IAH) C 08:31 Austin (AUS)
UA 400 Non-stop Airbus A319 (319) 1:01 Effective 2024-01-29 through 2024-02-03
Mon 07:30 George Bush, Houston (IAH) C 08:31 Austin (AUS)
UA 400 Non-stop Airbus A320 (320) 1:01 Operates only on 2024-02-05
Mon-Sat 07:30 George Bush, Houston (IAH) C 08:31 Austin (AUS)
UA 400 Non-stop Airbus A319 (319) 1:01 Effective 2024-02-06 through 2024-02-12
Tue 07:30 George Bush, Houston (IAH) C 08:31 Austin (AUS)
UA 400 Non-stop Airbus A320 (320) 1:01 Operates only on 2024-02-13
Wed 07:30 George Bush, Houston (IAH) C 08:31 Austin (AUS)
UA 400 Non-stop Airbus A319 (319) 1:01 Operates only on 2024-02-14
Daily 11:59 Austin (AUS) 16:10 Dulles, Washington (IAD)
UA 400 Non-stop Boeing 737-800 (738) 3:11 Effective 2024-03-31 through 2024-05-22
Daily 11:59 Austin (AUS) 16:08 Dulles, Washington (IAD)
UA 400 Non-stop Boeing 737-800 (738) 3:09 Effective from 2024-05-23
Daily 12:05 Austin (AUS) 16:03 Dulles, Washington (IAD)
UA 400 Non-stop Boeing 737 MAX 9 (7M9) 2:58 Valid until 2024-01-05
Sat,Sun 12:05 Austin (AUS) 16:03 Dulles, Washington (IAD)
UA 400 Non-stop Boeing 737 MAX 8 (7M8) 2:58 Effective 2024-01-06 through 2024-01-07
Mon 12:05 Austin (AUS) 16:03 Dulles, Washington (IAD)
UA 400 Non-stop Boeing 737 MAX 9 (7M9) 2:58 Operates only on 2024-01-08
Sat 12:10 Austin (AUS) 16:14 Dulles, Washington (IAD)
UA 400 Non-stop Boeing 737-900 (739) 3:04 Effective 2024-02-17 through 2024-03-02
Mon-Fri,Sun 12:13 Austin (AUS) 16:17 Dulles, Washington (IAD)
UA 400 Non-stop Boeing 737 MAX 8 (7M8) 3:04 Effective 2024-03-07 through 2024-03-29
Mon-Fri 12:15 Austin (AUS) 16:19 Dulles, Washington (IAD)
UA 400 Non-stop Boeing 737 MAX 8 (7M8) 3:04 Effective 2024-02-15 through 2024-03-06
Sat 12:35 Kansas City (MCI) 15:54 Dulles, Washington (IAD)
UA 400 Non-stop Airbus A319 (319) 2:19 Effective 2024-03-09 through 2024-03-30
This flight number is listed as serving the following routes:


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United Airlines flight UA 400: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA400
07:25
O'Hare, Chicago (ORD) 1

10:06
Buffalo (BUF)
Effective 2024-02-18 through 2024-03-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:41, non-stop
Airbus A319 (319)
United Airlines UA400
07:30
George Bush, Houston (IAH) C

08:31
Austin (AUS)
Effective 2024-01-09 through 2024-01-27
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 1:01, non-stop
Airbus A319 (319)
United Airlines UA400
07:30
George Bush, Houston (IAH) C

08:31
Austin (AUS)
Effective 2024-01-14 through 2024-02-11
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:01, non-stop
Boeing 737-800 (738)
United Airlines UA400
07:30
George Bush, Houston (IAH) C

08:31
Austin (AUS)
Effective 2024-01-15 through 2024-01-22
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:01, non-stop
Airbus A320 (320)
United Airlines UA400
07:30
George Bush, Houston (IAH) C

08:31
Austin (AUS)
Effective 2024-01-29 through 2024-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 1:01, non-stop
Airbus A319 (319)
United Airlines UA400
07:30
George Bush, Houston (IAH) C

08:31
Austin (AUS)
Operates only on 2024-02-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:01, non-stop
Airbus A320 (320)
United Airlines UA400
07:30
George Bush, Houston (IAH) C

08:31
Austin (AUS)
Effective 2024-02-06 through 2024-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 1:01, non-stop
Airbus A319 (319)
United Airlines UA400
07:30
George Bush, Houston (IAH) C

08:31
Austin (AUS)
Operates only on 2024-02-13
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:01, non-stop
Airbus A320 (320)
United Airlines UA400
07:30
George Bush, Houston (IAH) C

08:31
Austin (AUS)
Operates only on 2024-02-14
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:01, non-stop
Airbus A319 (319)
United Airlines UA400
11:59
Austin (AUS)

16:10
Dulles, Washington (IAD)
Effective 2024-03-31 through 2024-05-22
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:11, non-stop
Boeing 737-800 (738)
United Airlines UA400
11:59
Austin (AUS)

16:08
Dulles, Washington (IAD)
Effective from 2024-05-23
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:09, non-stop
Boeing 737-800 (738)
United Airlines UA400
12:05
Austin (AUS)

16:03
Dulles, Washington (IAD)
Valid until 2024-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:58, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA400
12:05
Austin (AUS)

16:03
Dulles, Washington (IAD)
Effective 2024-01-06 through 2024-01-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 2:58, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA400
12:05
Austin (AUS)

16:03
Dulles, Washington (IAD)
Operates only on 2024-01-08
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:58, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA400
12:10
Austin (AUS)

16:14
Dulles, Washington (IAD)
Effective 2024-02-17 through 2024-03-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:04, non-stop
Boeing 737-900 (739)
United Airlines UA400
12:13
Austin (AUS)

16:17
Dulles, Washington (IAD)
Effective 2024-03-07 through 2024-03-29
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 3:04, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA400
12:15
Austin (AUS)

16:19
Dulles, Washington (IAD)
Effective 2024-02-15 through 2024-03-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 3:04, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA400
12:35
Kansas City (MCI)

15:54
Dulles, Washington (IAD)
Effective 2024-03-09 through 2024-03-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:19, non-stop
Airbus A319 (319)
This flight number is listed as serving the following routes:
  • Austin (AUS) - Dulles, Washington (IAD)
  • George Bush, Houston (IAH) - Austin (AUS)
  • Kansas City (MCI) - Dulles, Washington (IAD)
  • O'Hare, Chicago (ORD) - Buffalo (BUF)
All United Airlines flights
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