United Airlines flight UA 5739: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 08:45 Chicago O'Hare (ORD) 2 11:07 Dayton (DAY)
UA 5739 Non-stop Canadair CRJ 550 (CR5) 1:22 Effective 2025-09-25 through 2025-10-25
Wed 16:35 George Bush, Houston (IAH) B 17:45 Lafayette (LFT)
UA 5739 Non-stop Embraer EMB 175 (E7W) 1:10 Operates only on 2025-05-21
Daily 18:15 Chicago O'Hare (ORD) 2 20:58 Knoxville (TYS)
UA 5739 Non-stop Embraer EMB 175 (E7W) 1:43 Effective 2025-12-02 through 2026-01-05
Daily 19:40 Chicago O'Hare (ORD) 2 22:23 Knoxville (TYS)
UA 5739 Non-stop Embraer EMB 175 (E7W) 1:43 Effective 2025-10-26 through 2025-12-01
Daily 19:50 Chicago O'Hare (ORD) 2 22:33 Knoxville (TYS)
UA 5739 Non-stop Embraer EMB 175 (E7W) 1:43 Effective 2026-01-06 through 2026-02-11
Daily 20:15 Chicago O'Hare (ORD) 2 22:58 Knoxville (TYS)
UA 5739 Non-stop Embraer EMB 175 (E7W) 1:43 Effective from 2026-02-12
Daily 20:40 Denver (DEN) 23:59 Saint Louis (STL) 1
UA 5739 Non-stop Embraer EMB 175 (E7W) 2:19 Effective 2025-05-22 through 2025-08-18
Daily 20:45 Denver (DEN) 23:58 Saint Louis (STL) 1
UA 5739 Non-stop Embraer EMB 175 (E7W) 2:13 Valid until 2025-05-20
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This flight number is listed as serving the following routes:


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United Airlines flight UA 5739: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA5739
08:45
Chicago O'Hare (ORD) 2

11:07
Dayton (DAY)
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:22, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA5739
16:35
George Bush, Houston (IAH) B

17:45
Lafayette (LFT)
Operates only on 2025-05-21
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:10, non-stop
Embraer EMB 175 (E7W)
United Airlines UA5739
18:15
Chicago O'Hare (ORD) 2

20:58
Knoxville (TYS)
Effective 2025-12-02 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:43, non-stop
Embraer EMB 175 (E7W)
United Airlines UA5739
19:40
Chicago O'Hare (ORD) 2

22:23
Knoxville (TYS)
Effective 2025-10-26 through 2025-12-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:43, non-stop
Embraer EMB 175 (E7W)
United Airlines UA5739
19:50
Chicago O'Hare (ORD) 2

22:33
Knoxville (TYS)
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:43, non-stop
Embraer EMB 175 (E7W)
United Airlines UA5739
20:15
Chicago O'Hare (ORD) 2

22:58
Knoxville (TYS)
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:43, non-stop
Embraer EMB 175 (E7W)
United Airlines UA5739
20:40
Denver (DEN)

23:59
Saint Louis (STL) 1
Effective 2025-05-22 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:19, non-stop
Embraer EMB 175 (E7W)
United Airlines UA5739
20:45
Denver (DEN)

23:58
Saint Louis (STL) 1
Valid until 2025-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:13, non-stop
Embraer EMB 175 (E7W)
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Dayton (DAY)
  • Chicago O'Hare (ORD) - Knoxville (TYS)
  • Denver (DEN) - Saint Louis (STL)
  • George Bush, Houston (IAH) - Lafayette (LFT)
All United Airlines flights
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