United Airlines flight UA 5538: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 07:35 Houston George Bush (IAH) B 09:13 Tulsa (TUL)
UA 5538 Non-stop Embraer EMB 175 (E7W) 1:38 Valid until 2026-01-05
Daily 15:24 Milwaukee (MKE) 16:30 Chicago O'Hare (ORD) 2
UA 5538 Non-stop Canadair CRJ (CRJ) 1:06 Effective 2026-03-05 through 2026-03-28
Daily 15:24 Milwaukee (MKE) 16:33 Chicago O'Hare (ORD) 2
UA 5538 Non-stop Canadair CRJ (CRJ) 1:09 Effective 2026-03-29 through 2026-04-29
Daily 15:25 Milwaukee (MKE) 16:34 Chicago O'Hare (ORD) 2
UA 5538 Non-stop Canadair CRJ (CRJ) 1:09 Effective 2026-04-30 through 2026-05-20
Daily 15:53 Milwaukee (MKE) 16:54 Chicago O'Hare (ORD) 2
UA 5538 Non-stop Canadair CRJ 550 (CR5) 1:01 Effective from 2026-05-21
Mon-Fri,Sun 18:00 Chicago O'Hare (ORD) 2 21:11 Charlotte (CLT)
UA 5538 Non-stop Embraer EMB 175 (E7W) 2:11 Effective 2026-02-12 through 2026-03-04
Sat 18:10 Chicago O'Hare (ORD) 2 21:21 Charlotte (CLT)
UA 5538 Non-stop Embraer EMB 175 (E7W) 2:11 Effective 2026-02-14 through 2026-02-28
Daily 18:15 Chicago O'Hare (ORD) 2 21:37 Charlotte (CLT)
UA 5538 Non-stop Embraer EMB 175 (E7W) 2:22 Effective 2026-01-06 through 2026-02-02
Daily 18:15 Chicago O'Hare (ORD) 2 21:37 Charlotte (CLT)
UA 5538 Non-stop Embraer EMB 175 (E7W) 2:22 Effective 2026-02-04 through 2026-02-10
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This flight number is listed as serving the following routes:


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United Airlines flight UA 5538: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA5538
07:35
Houston George Bush (IAH) B

09:13
Tulsa (TUL)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:38, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA5538
15:24
Milwaukee (MKE)

16:30
Chicago O'Hare (ORD) 2
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:06, non-stop
Canadair CRJ (CRJ)
Direct Flights:
United Airlines UA5538
15:24
Milwaukee (MKE)

16:33
Chicago O'Hare (ORD) 2
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:09, non-stop
Canadair CRJ (CRJ)
Direct Flights:
United Airlines UA5538
15:25
Milwaukee (MKE)

16:34
Chicago O'Hare (ORD) 2
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:09, non-stop
Canadair CRJ (CRJ)
Direct Flights:
United Airlines UA5538
15:53
Milwaukee (MKE)

16:54
Chicago O'Hare (ORD) 2
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:01, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA5538
18:00
Chicago O'Hare (ORD) 2

21:11
Charlotte (CLT)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:11, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA5538
18:10
Chicago O'Hare (ORD) 2

21:21
Charlotte (CLT)
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:11, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA5538
18:15
Chicago O'Hare (ORD) 2

21:37
Charlotte (CLT)
Effective 2026-01-06 through 2026-02-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:22, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA5538
18:15
Chicago O'Hare (ORD) 2

21:37
Charlotte (CLT)
Effective 2026-02-04 through 2026-02-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:22, non-stop
Embraer EMB 175 (E7W)
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Charlotte (CLT)
  • Houston George Bush (IAH) - Tulsa (TUL)
  • Milwaukee (MKE) - Chicago O'Hare (ORD)
All United Airlines flights
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