United Airlines flight UA 5591: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 16:04 Knoxville (TYS) 17:49 Denver (DEN)
UA 5591 Non-stop Embraer EMB 175 (E7W) 3:45 Valid until 2026-01-05
Sat 16:15 Wilmington (ILM) 18:41 Denver (DEN)
UA 5591 Non-stop Embraer EMB 175 (E7W) 4:26 Effective 2026-05-23 through 2026-08-15
Daily 16:28 Chicago O'Hare (ORD) 2 18:50 Cincinnati (CVG)
UA 5591 Non-stop Embraer EMB 175 (E7W) 1:22 Effective 2026-03-05 through 2026-03-28
Daily 16:30 Los Angeles (LAX) 7 17:46 Fresno (FAT)
UA 5591 Non-stop Embraer EMB 175 (E7W) 1:16 Effective 2026-01-06 through 2026-02-11
Daily 16:45 Los Angeles (LAX) 7 17:41 Fresno (FAT)
UA 5591 Non-stop Embraer EMB 175 (E7W) 0:56 Effective 2026-08-18 through 2026-10-24
Daily 16:45 Los Angeles (LAX) 7 18:07 Fresno (FAT)
UA 5591 Non-stop Embraer EMB 175 (E7W) 1:22 Effective from 2026-10-25
Daily 18:20 Chicago O'Hare (ORD) 2 20:31 Dayton (DAY)
UA 5591 Non-stop Embraer EMB 175 (E7W) 1:11 Effective 2026-04-30 through 2026-05-20
Daily 19:40 Chicago O'Hare (ORD) 2 21:58 Dayton (DAY)
UA 5591 Non-stop Canadair CRJ 550 (CR5) 1:18 Effective 2026-03-29 through 2026-04-29
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This flight number is listed as serving the following routes:


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United Airlines flight UA 5591: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA5591
16:04
Knoxville (TYS)

17:49
Denver (DEN)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:45, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA5591
16:15
Wilmington (ILM)

18:41
Denver (DEN)
Effective 2026-05-23 through 2026-08-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:26, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA5591
16:28
Chicago O'Hare (ORD) 2

18:50
Cincinnati (CVG)
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:22, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA5591
16:30
Los Angeles (LAX) 7

17:46
Fresno (FAT)
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:16, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA5591
16:45
Los Angeles (LAX) 7

17:41
Fresno (FAT)
Effective 2026-08-18 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 0:56, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA5591
16:45
Los Angeles (LAX) 7

18:07
Fresno (FAT)
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:22, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA5591
18:20
Chicago O'Hare (ORD) 2

20:31
Dayton (DAY)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:11, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA5591
19:40
Chicago O'Hare (ORD) 2

21:58
Dayton (DAY)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:18, non-stop
Canadair CRJ 550 (CR5)
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Cincinnati (CVG)
  • Chicago O'Hare (ORD) - Dayton (DAY)
  • Knoxville (TYS) - Denver (DEN)
  • Los Angeles (LAX) - Fresno (FAT)
  • Wilmington (ILM) - Denver (DEN)
All United Airlines flights
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