United Airlines flight UA 3531: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Wed 12:28 Newark Liberty, New York (EWR) C 15:01 Louisville (SDF)
UA 3531 Non-stop Embraer EMB 175 (E7W) 2:33 Operates only on 2026-02-04
Daily 15:00 Chicago O'Hare (ORD) 2 17:58 Toronto Pearson (YYZ) 1
UA 3531 Non-stop Embraer EMB 175 (E7W) 1:58 Effective 2026-04-30 through 2026-10-24
Sat 16:55 Newark Liberty, New York (EWR) C 19:21 Louisville (SDF)
UA 3531 Non-stop Embraer EMB 175 (E7W) 2:26 Operates only on 2026-03-28
Daily 16:58 Newark Liberty, New York (EWR) C 19:31 Louisville (SDF)
UA 3531 Non-stop Embraer EMB 175 (E7W) 2:33 Effective 2026-01-06 through 2026-02-03
Daily 16:58 Newark Liberty, New York (EWR) C 19:31 Louisville (SDF)
UA 3531 Non-stop Embraer EMB 175 (E7W) 2:33 Effective 2026-02-05 through 2026-02-11
Mon-Sat 16:59 Newark Liberty, New York (EWR) C 19:25 Louisville (SDF)
UA 3531 Non-stop Embraer EMB 175 (E7W) 2:26 Effective 2026-02-12 through 2026-02-19
Mon,Sat 16:59 Newark Liberty, New York (EWR) C 19:25 Louisville (SDF)
UA 3531 Non-stop Embraer EMB 175 (E7W) 2:26 Effective 2026-02-21 through 2026-03-02
Daily 17:05 Newark Liberty, New York (EWR) C 19:31 Louisville (SDF)
UA 3531 Non-stop Embraer EMB 175 (E7W) 2:26 Effective 2026-03-05 through 2026-03-27
Fri,Sun 17:29 Newark Liberty, New York (EWR) C 19:55 Louisville (SDF)
UA 3531 Non-stop Embraer EMB 175 (E7W) 2:26 Effective 2026-02-15 through 2026-02-22
Tue-Fri,Sun 17:29 Newark Liberty, New York (EWR) C 19:55 Louisville (SDF)
UA 3531 Non-stop Embraer EMB 175 (E7W) 2:26 Effective 2026-02-24 through 2026-03-04
Mon,Sun 20:10 Ronald Reagan Washington (DCA) 2 21:39 Chicago O'Hare (ORD) 2
UA 3531 Non-stop Embraer EMB 175 (E7W) 2:29 Effective 2026-01-04 through 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 3531: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA3531
12:28
Newark Liberty, New York (EWR) C

15:01
Louisville (SDF)
Operates only on 2026-02-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:33, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3531
15:00
Chicago O'Hare (ORD) 2

17:58
Toronto Pearson (YYZ) 1
Effective 2026-04-30 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:58, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3531
16:55
Newark Liberty, New York (EWR) C

19:21
Louisville (SDF)
Operates only on 2026-03-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:26, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3531
16:58
Newark Liberty, New York (EWR) C

19:31
Louisville (SDF)
Effective 2026-01-06 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:33, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3531
16:58
Newark Liberty, New York (EWR) C

19:31
Louisville (SDF)
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:33, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3531
16:59
Newark Liberty, New York (EWR) C

19:25
Louisville (SDF)
Effective 2026-02-12 through 2026-02-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 2:26, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3531
16:59
Newark Liberty, New York (EWR) C

19:25
Louisville (SDF)
Effective 2026-02-21 through 2026-03-02
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:26, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3531
17:05
Newark Liberty, New York (EWR) C

19:31
Louisville (SDF)
Effective 2026-03-05 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:26, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3531
17:29
Newark Liberty, New York (EWR) C

19:55
Louisville (SDF)
Effective 2026-02-15 through 2026-02-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:26, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3531
17:29
Newark Liberty, New York (EWR) C

19:55
Louisville (SDF)
Effective 2026-02-24 through 2026-03-04
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:26, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3531
20:10
Ronald Reagan Washington (DCA) 2

21:39
Chicago O'Hare (ORD) 2
Effective 2026-01-04 through 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:29, non-stop
Embraer EMB 175 (E7W)
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Parallax here -
This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Toronto Pearson (YYZ)
  • Newark Liberty, New York (EWR) - Louisville (SDF)
  • Ronald Reagan Washington (DCA) - Chicago O'Hare (ORD)
All United Airlines flights
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