United Airlines flight UA 5821: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 08:56 Chicago O'Hare (ORD) 2 09:49 Milwaukee (MKE)
UA 5821 Non-stop Embraer EMB 175 (E7W) 0:53 Effective 2026-05-21 through 2026-10-24
Daily 08:56 Chicago O'Hare (ORD) 2 09:49 Milwaukee (MKE)
UA 5821 Non-stop Canadair CRJ 550 (CR5) 0:53 Effective from 2026-10-25
Daily 09:15 Chicago O'Hare (ORD) 2 10:20 Milwaukee (MKE)
UA 5821 Non-stop Canadair CRJ (CRJ) 1:05 Effective 2026-04-30 through 2026-05-20
Daily 09:25 Chicago O'Hare (ORD) 2 10:34 Milwaukee (MKE)
UA 5821 Non-stop Canadair CRJ (CRJ) 1:09 Effective 2026-01-06 through 2026-02-03
Daily 09:25 Chicago O'Hare (ORD) 2 10:34 Milwaukee (MKE)
UA 5821 Non-stop Canadair CRJ (CRJ) 1:09 Effective 2026-02-05 through 2026-02-11
Daily 09:25 Chicago O'Hare (ORD) 2 10:30 Milwaukee (MKE)
UA 5821 Non-stop Canadair CRJ (CRJ) 1:05 Effective 2026-02-12 through 2026-04-29
Mon,Tue,Thu-Sun 16:28 San Francisco (SFO) 3 21:59 Omaha (OMA)
UA 5821 Non-stop Embraer EMB 175 (E7W) 3:31 Valid until 2026-01-05
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This flight number is listed as serving the following routes:


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United Airlines flight UA 5821: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA5821
08:56
Chicago O'Hare (ORD) 2

09:49
Milwaukee (MKE)
Effective 2026-05-21 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 0:53, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA5821
08:56
Chicago O'Hare (ORD) 2

09:49
Milwaukee (MKE)
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 0:53, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA5821
09:15
Chicago O'Hare (ORD) 2

10:20
Milwaukee (MKE)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:05, non-stop
Canadair CRJ (CRJ)
Direct Flights:
United Airlines UA5821
09:25
Chicago O'Hare (ORD) 2

10:34
Milwaukee (MKE)
Effective 2026-01-06 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:09, non-stop
Canadair CRJ (CRJ)
Direct Flights:
United Airlines UA5821
09:25
Chicago O'Hare (ORD) 2

10:34
Milwaukee (MKE)
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:09, non-stop
Canadair CRJ (CRJ)
Direct Flights:
United Airlines UA5821
09:25
Chicago O'Hare (ORD) 2

10:30
Milwaukee (MKE)
Effective 2026-02-12 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:05, non-stop
Canadair CRJ (CRJ)
Direct Flights:
United Airlines UA5821
16:28
San Francisco (SFO) 3

21:59
Omaha (OMA)
Valid until 2026-01-05
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Duration: 3:31, non-stop
Embraer EMB 175 (E7W)
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Milwaukee (MKE)
  • San Francisco (SFO) - Omaha (OMA)
All United Airlines flights
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