United Airlines flight UA 4573: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Fri 09:59 Fayetteville/Springdale (XNA) 12:00 Chicago O'Hare (ORD) 2
UA 4573 Non-stop Canadair CRJ 550 (CR5) 2:01 Valid until 2026-01-02
Wed,Sat 11:00 Syracuse (SYR) 12:26 Newark Liberty, New York (EWR) C
UA 4573 Non-stop Canadair CRJ 550 (CR5) 1:26 Valid until 2026-01-03
Tue,Wed 15:13 Lincoln (LNK) 17:10 Chicago O'Hare (ORD) 2
UA 4573 Non-stop Canadair CRJ 550 (CR5) 1:57 Effective 2026-01-06 through 2026-01-07
Wed 15:13 Lincoln (LNK) 17:10 Chicago O'Hare (ORD) 2
UA 4573 Non-stop Canadair CRJ 550 (CR5) 1:57 Effective 2026-01-14 through 2026-01-28
Wed 15:13 Lincoln (LNK) 17:10 Chicago O'Hare (ORD) 2
UA 4573 Non-stop Canadair CRJ 550 (CR5) 1:57 Operates only on 2026-02-11
Daily 17:22 Moline (MLI) 18:35 Chicago O'Hare (ORD) 2
UA 4573 Non-stop Canadair CRJ 550 (CR5) 1:13 Effective 2026-02-12 through 2026-03-04
Mon,Tue,Thu,Fri,Sun 17:23 Buffalo (BUF) 18:30 Chicago O'Hare (ORD) 2
UA 4573 Non-stop Canadair CRJ 550 (CR5) 2:07 Effective 2026-02-02 through 2026-02-08
Mon,Tue,Thu,Sun 17:33 Moline (MLI) 18:50 Chicago O'Hare (ORD) 2
UA 4573 Non-stop Canadair CRJ 550 (CR5) 1:17 Valid until 2026-01-05
Daily 17:37 Moline (MLI) 18:50 Chicago O'Hare (ORD) 2
UA 4573 Non-stop Canadair CRJ 550 (CR5) 1:13 Effective 2026-03-05 through 2026-03-28
Daily 17:37 Moline (MLI) 18:52 Chicago O'Hare (ORD) 2
UA 4573 Non-stop Canadair CRJ 550 (CR5) 1:15 Effective 2026-03-29 through 2026-04-29
Daily 18:36 Houston George Bush (IAH) 20:34 Huntsville (HSV)
UA 4573 Non-stop Canadair CRJ 550 (CR5) 1:58 Effective 2026-04-30 through 2026-05-20
Daily 20:00 Houston George Bush (IAH) 21:58 Huntsville (HSV)
UA 4573 Non-stop Canadair CRJ 550 (CR5) 1:58 Effective 2026-05-21 through 2026-08-17
Daily 20:00 Houston George Bush (IAH) 21:55 Huntsville (HSV)
UA 4573 Non-stop Canadair CRJ 550 (CR5) 1:55 Effective 2026-08-18 through 2026-10-24
Daily 20:00 Houston George Bush (IAH) 21:52 Huntsville (HSV)
UA 4573 Non-stop Canadair CRJ 550 (CR5) 1:52 Effective from 2026-10-25
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This flight number is listed as serving the following routes:


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United Airlines flight UA 4573: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA4573
09:59
Fayetteville/Springdale (XNA)

12:00
Chicago O'Hare (ORD) 2
Valid until 2026-01-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:01, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4573
11:00
Syracuse (SYR)

12:26
Newark Liberty, New York (EWR) C
Valid until 2026-01-03
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:26, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4573
15:13
Lincoln (LNK)

17:10
Chicago O'Hare (ORD) 2
Effective 2026-01-06 through 2026-01-07
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:57, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4573
15:13
Lincoln (LNK)

17:10
Chicago O'Hare (ORD) 2
Effective 2026-01-14 through 2026-01-28
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:57, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4573
15:13
Lincoln (LNK)

17:10
Chicago O'Hare (ORD) 2
Operates only on 2026-02-11
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:57, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4573
17:22
Moline (MLI)

18:35
Chicago O'Hare (ORD) 2
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:13, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4573
17:23
Buffalo (BUF)

18:30
Chicago O'Hare (ORD) 2
Effective 2026-02-02 through 2026-02-08
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:07, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4573
17:33
Moline (MLI)

18:50
Chicago O'Hare (ORD) 2
Valid until 2026-01-05
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
Duration: 1:17, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4573
17:37
Moline (MLI)

18:50
Chicago O'Hare (ORD) 2
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:13, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4573
17:37
Moline (MLI)

18:52
Chicago O'Hare (ORD) 2
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:15, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4573
18:36
Houston George Bush (IAH)

20:34
Huntsville (HSV)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:58, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4573
20:00
Houston George Bush (IAH)

21:58
Huntsville (HSV)
Effective 2026-05-21 through 2026-08-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:58, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4573
20:00
Houston George Bush (IAH)

21:55
Huntsville (HSV)
Effective 2026-08-18 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:55, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4573
20:00
Houston George Bush (IAH)

21:52
Huntsville (HSV)
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:52, non-stop
Canadair CRJ 550 (CR5)
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This flight number is listed as serving the following routes:
  • Buffalo (BUF) - Chicago O'Hare (ORD)
  • Fayetteville/Springdale (XNA) - Chicago O'Hare (ORD)
  • Houston George Bush (IAH) - Huntsville (HSV)
  • Lincoln (LNK) - Chicago O'Hare (ORD)
  • Moline (MLI) - Chicago O'Hare (ORD)
  • Syracuse (SYR) - Newark Liberty, New York (EWR)
All United Airlines flights
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