United Airlines flight UA 456: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Mon-Fri,Sun 07:45 Denver (DEN) 11:03 Austin (AUS)
UA 456 Non-stop Airbus A319 (319) 2:18 Valid until 2026-01-05
Daily 08:00 Denver (DEN) 11:07 Austin (AUS)
UA 456 Non-stop Airbus A319 (319) 2:07 Effective from 2026-04-30
Tue 08:05 Denver (DEN) 11:24 Austin (AUS)
UA 456 Non-stop Airbus A320 (320) 2:19 Operates only on 2026-01-06
Tue-Fri,Sun 08:05 Denver (DEN) 11:24 Austin (AUS)
UA 456 Non-stop Airbus A319 (319) 2:19 Effective 2026-01-07 through 2026-01-16
Mon 08:05 Denver (DEN) 11:23 Austin (AUS)
UA 456 Non-stop Boeing 737-800 (738) 2:18 Operates only on 2026-01-12
Mon-Fri,Sun 08:05 Denver (DEN) 11:24 Austin (AUS)
UA 456 Non-stop Airbus A319 (319) 2:19 Effective 2026-01-19 through 2026-01-25
Mon 08:05 Denver (DEN) 11:23 Austin (AUS)
UA 456 Non-stop Boeing 737-800 (738) 2:18 Effective 2026-01-26 through 2026-02-09
Tue-Fri,Sun 08:05 Denver (DEN) 11:24 Austin (AUS)
UA 456 Non-stop Airbus A319 (319) 2:19 Effective 2026-01-27 through 2026-02-01
Tue 08:05 Denver (DEN) 11:23 Austin (AUS)
UA 456 Non-stop Boeing 737 MAX 9 (7M9) 2:18 Operates only on 2026-02-03
Wed 08:05 Denver (DEN) 11:24 Austin (AUS)
UA 456 Non-stop Airbus A320 (320) 2:19 Operates only on 2026-02-04
Tue-Fri,Sun 08:05 Denver (DEN) 11:24 Austin (AUS)
UA 456 Non-stop Airbus A319 (319) 2:19 Effective 2026-02-05 through 2026-02-11
Thu,Fri 08:05 Denver (DEN) 11:20 Austin (AUS)
UA 456 Non-stop Airbus A319 (319) 2:15 Effective 2026-02-12 through 2026-02-13
Sun 08:05 Denver (DEN) 11:19 Austin (AUS)
UA 456 Non-stop Boeing 737 MAX 9 (7M9) 2:14 Effective 2026-02-15 through 2026-03-01
Mon-Fri 08:05 Denver (DEN) 11:20 Austin (AUS)
UA 456 Non-stop Airbus A320 (320) 2:15 Effective 2026-02-16 through 2026-03-06
Tue-Fri,Sun 08:05 Denver (DEN) 11:20 Austin (AUS)
UA 456 Non-stop Airbus A320 (320) 2:15 Effective 2026-03-08 through 2026-03-27
Mon 08:05 Denver (DEN) 11:19 Austin (AUS)
UA 456 Non-stop Boeing 737-800 (738) 2:14 Effective 2026-03-09 through 2026-03-23
Daily 08:05 Denver (DEN) 11:24 Austin (AUS)
UA 456 Non-stop Airbus A320 (320) 2:19 Effective 2026-03-29 through 2026-04-29
Sat 08:30 Washington Dulles (IAD) 11:21 Bozeman (BZN)
UA 456 Non-stop Boeing 737 MAX 8 (7M8) 4:51 Valid until 2026-01-03
Daily 13:10 Austin (AUS) 15:57 Chicago O'Hare (ORD) 1
UA 456 Non-stop Boeing 737-800 (738) 2:47 Effective 2026-03-05 through 2026-03-17
Wed 13:10 Austin (AUS) 15:57 Chicago O'Hare (ORD) 1
UA 456 Non-stop Boeing 737-900 (739) 2:47 Operates only on 2026-03-18
Daily 13:10 Austin (AUS) 15:57 Chicago O'Hare (ORD) 1
UA 456 Non-stop Boeing 737-800 (738) 2:47 Effective 2026-03-19 through 2026-03-28
Daily 14:10 Austin (AUS) 16:51 Chicago O'Hare (ORD) 1
UA 456 Non-stop Boeing 737-800 (738) 2:41 Effective from 2026-03-29
Sat 16:10 Los Angeles (LAX) 7 23:36 Cleveland (CLE)
UA 456 Non-stop Boeing 737 MAX 9 (7M9) 4:26 Effective 2026-02-14 through 2026-02-28
Daily 18:10 Chicago O'Hare (ORD) 1 21:11 Greenville/Spartanburg (GSP)
UA 456 Non-stop Airbus A319 (319) 2:01 Effective from 2026-05-21
Sat 23:35 San Francisco (SFO) 3 05:15 Dallas Fort Worth (DFW) E
UA 456 Non-stop Boeing 737-800 (738) 3:40 Effective 2026-01-10 through 2026-01-17
The flight arrives 1 day after departure.
Sat 23:35 San Francisco (SFO) 3 05:12 Dallas Fort Worth (DFW) E
UA 456 Non-stop Airbus A319 (319) 3:37 Effective 2026-01-24 through 2026-02-07
The flight arrives 1 day after departure.
Non-Direct Flights:
Daily 08:00 Denver (DEN) 16:51 Chicago O'Hare (ORD) 1
UA 456 1-stop Airbus A319 (319) 7:51 Effective from 2026-04-30
Tue-Fri,Sun 08:05 Denver (DEN) 15:57 Chicago O'Hare (ORD) 1
UA 456 1-stop Airbus A320 (320) 6:52 Effective 2026-03-05 through 2026-03-27
Mon 08:05 Denver (DEN) 15:57 Chicago O'Hare (ORD) 1
UA 456 1-stop Boeing 737-800 (738) 6:52 Effective 2026-03-09 through 2026-03-23
Daily 08:05 Denver (DEN) 16:51 Chicago O'Hare (ORD) 1
UA 456 1-stop Airbus A320 (320) 7:46 Effective 2026-03-29 through 2026-04-29
Daily 14:10 Austin (AUS) 21:11 Greenville/Spartanburg (GSP)
UA 456 1-stop Boeing 737-800 (738) 6:01 Effective from 2026-05-21
Daily 08:00 Denver (DEN) 21:11 Greenville/Spartanburg (GSP)
UA 456 2-stop Airbus A319 (319) 11:11 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 456: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA456
07:45
Denver (DEN)

11:03
Austin (AUS)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:18, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA456
08:00
Denver (DEN)

11:07
Austin (AUS)
Effective from 2026-04-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:07, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA456
08:05
Denver (DEN)

11:24
Austin (AUS)
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:19, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA456
08:05
Denver (DEN)

11:24
Austin (AUS)
Effective 2026-01-07 through 2026-01-16
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:19, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA456
08:05
Denver (DEN)

11:23
Austin (AUS)
Operates only on 2026-01-12
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:18, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA456
08:05
Denver (DEN)

11:24
Austin (AUS)
Effective 2026-01-19 through 2026-01-25
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:19, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA456
08:05
Denver (DEN)

11:23
Austin (AUS)
Effective 2026-01-26 through 2026-02-09
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:18, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA456
08:05
Denver (DEN)

11:24
Austin (AUS)
Effective 2026-01-27 through 2026-02-01
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:19, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA456
08:05
Denver (DEN)

11:23
Austin (AUS)
Operates only on 2026-02-03
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:18, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA456
08:05
Denver (DEN)

11:24
Austin (AUS)
Operates only on 2026-02-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:19, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA456
08:05
Denver (DEN)

11:24
Austin (AUS)
Effective 2026-02-05 through 2026-02-11
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:19, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA456
08:05
Denver (DEN)

11:20
Austin (AUS)
Effective 2026-02-12 through 2026-02-13
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:15, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA456
08:05
Denver (DEN)

11:19
Austin (AUS)
Effective 2026-02-15 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:14, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA456
08:05
Denver (DEN)

11:20
Austin (AUS)
Effective 2026-02-16 through 2026-03-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:15, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA456
08:05
Denver (DEN)

11:20
Austin (AUS)
Effective 2026-03-08 through 2026-03-27
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:15, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA456
08:05
Denver (DEN)

11:19
Austin (AUS)
Effective 2026-03-09 through 2026-03-23
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:14, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA456
08:05
Denver (DEN)

11:24
Austin (AUS)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:19, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA456
08:30
Washington Dulles (IAD)

11:21
Bozeman (BZN)
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:51, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA456
13:10
Austin (AUS)

15:57
Chicago O'Hare (ORD) 1
Effective 2026-03-05 through 2026-03-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:47, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA456
13:10
Austin (AUS)

15:57
Chicago O'Hare (ORD) 1
Operates only on 2026-03-18
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:47, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA456
13:10
Austin (AUS)

15:57
Chicago O'Hare (ORD) 1
Effective 2026-03-19 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:47, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA456
14:10
Austin (AUS)

16:51
Chicago O'Hare (ORD) 1
Effective from 2026-03-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:41, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA456
16:10
Los Angeles (LAX) 7

23:36
Cleveland (CLE)
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:26, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA456
18:10
Chicago O'Hare (ORD) 1

21:11
Greenville/Spartanburg (GSP)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:01, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA456
23:35
San Francisco (SFO) 3

05:15(+1)
Dallas Fort Worth (DFW) E
Effective 2026-01-10 through 2026-01-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:40, non-stop
Boeing 737-800 (738)
The flight arrives 1 day after departure.
Direct Flights:
United Airlines UA456
23:35
San Francisco (SFO) 3

05:12(+1)
Dallas Fort Worth (DFW) E
Effective 2026-01-24 through 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:37, non-stop
Airbus A319 (319)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA456
08:00
Denver (DEN)

16:51
Chicago O'Hare (ORD) 1
Effective from 2026-04-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 7:51, 1-stop
Airbus A319 (319)
Non-Direct Flights:
United Airlines UA456
08:05
Denver (DEN)

15:57
Chicago O'Hare (ORD) 1
Effective 2026-03-05 through 2026-03-27
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 6:52, 1-stop
Airbus A320 (320)
Non-Direct Flights:
United Airlines UA456
08:05
Denver (DEN)

15:57
Chicago O'Hare (ORD) 1
Effective 2026-03-09 through 2026-03-23
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 6:52, 1-stop
Boeing 737-800 (738)
Non-Direct Flights:
United Airlines UA456
08:05
Denver (DEN)

16:51
Chicago O'Hare (ORD) 1
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 7:46, 1-stop
Airbus A320 (320)
Non-Direct Flights:
United Airlines UA456
14:10
Austin (AUS)

21:11
Greenville/Spartanburg (GSP)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:01, 1-stop
Boeing 737-800 (738)
Non-Direct Flights:
United Airlines UA456
08:00
Denver (DEN)

21:11
Greenville/Spartanburg (GSP)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 11:11, 2-stop
Airbus A319 (319)
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This flight number is listed as serving the following routes:
  • Austin (AUS) - Chicago O'Hare (ORD)
  • Austin (AUS) - Greenville/Spartanburg (GSP)
  • Chicago O'Hare (ORD) - Greenville/Spartanburg (GSP)
  • Denver (DEN) - Austin (AUS)
  • Denver (DEN) - Chicago O'Hare (ORD)
  • Denver (DEN) - Greenville/Spartanburg (GSP)
  • Los Angeles (LAX) - Cleveland (CLE)
  • San Francisco (SFO) - Dallas Fort Worth (DFW)
  • Washington Dulles (IAD) - Bozeman (BZN)
All United Airlines flights
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