United Airlines flight UA 3521: Multiple routes

Ad box here 1220564027 I FlightWNum Top Box
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sun 05:50 Buffalo (BUF) 07:28 Newark Liberty, New York (EWR) C
UA 3521 Non-stop Embraer EMB 175 (E7W) 1:38 Operates only on 2026-03-08
Thu-Sat 06:00 Buffalo (BUF) 07:38 Newark Liberty, New York (EWR) C
UA 3521 Non-stop Embraer EMB 175 (E7W) 1:38 Effective 2026-03-05 through 2026-03-07
Daily 06:00 Buffalo (BUF) 07:38 Newark Liberty, New York (EWR) C
UA 3521 Non-stop Embraer EMB 175 (E7W) 1:38 Effective 2026-03-09 through 2026-03-28
Mon,Thu,Fri 07:15 Chicago O'Hare (ORD) 2 10:33 Hartford (BDL)
UA 3521 Non-stop Embraer EMB 175 (E7W) 2:18 Effective 2026-02-12 through 2026-03-02
Mon,Tue,Thu-Sun 12:03 Minneapolis/Saint Paul (MSP) 1 15:57 Newark Liberty, New York (EWR) C
UA 3521 Non-stop Embraer EMB 175 (E7W) 2:54 Valid until 2026-01-05
Daily 14:20 Cleveland (CLE) 15:57 Newark Liberty, New York (EWR) C
UA 3521 Non-stop Embraer EMB 175 (E7W) 1:37 Effective 2026-03-29 through 2026-04-29
Daily 14:25 Cleveland (CLE) 16:02 Newark Liberty, New York (EWR) C
UA 3521 Non-stop Embraer EMB 175 (E7W) 1:37 Effective 2026-04-30 through 2026-05-20
Daily 15:10 Cedar Rapids (CID) 16:40 Chicago O'Hare (ORD) 2
UA 3521 Non-stop Embraer EMB 175 (E7W) 1:30 Effective 2026-01-06 through 2026-02-03
Daily 15:10 Cedar Rapids (CID) 16:40 Chicago O'Hare (ORD) 2
UA 3521 Non-stop Embraer EMB 175 (E7W) 1:30 Effective 2026-02-05 through 2026-02-11
Daily 15:30 Cedar Rapids (CID) 16:45 Chicago O'Hare (ORD) 2
UA 3521 Non-stop Embraer EMB 175 (E7W) 1:15 Effective from 2026-05-21
Daily 18:10 Chicago O'Hare (ORD) 2 21:54 Bangor (BGR)
UA 3521 Non-stop Embraer EMB 175 (E7W) 2:44 Effective from 2026-06-25
Non-Direct Flights:
Daily 15:30 Cedar Rapids (CID) 21:54 Bangor (BGR)
UA 3521 1-stop Embraer EMB 175 (E7W) 5:24 Effective from 2026-06-25
Ad flat here 1377413384 I FlightWNum Lower
Parallax here
This flight number is listed as serving the following routes:


Feedback - Disclaimer - Privacy - new_base.html - DESKTOP - CACHE: False - LANG: en - IS_EU: False
FlightMapper.net Flight Search Countries Airlines
LANGUAGES
United Airlines flight UA 3521: Multiple routes
Ad mobi flat here (320x100px) 6074960173 M FlightWNum Top Flat
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA3521
05:50
Buffalo (BUF)

07:28
Newark Liberty, New York (EWR) C
Operates only on 2026-03-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:38, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3521
06:00
Buffalo (BUF)

07:38
Newark Liberty, New York (EWR) C
Effective 2026-03-05 through 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
Sun
-
Duration: 1:38, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3521
06:00
Buffalo (BUF)

07:38
Newark Liberty, New York (EWR) C
Effective 2026-03-09 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:38, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3521
07:15
Chicago O'Hare (ORD) 2

10:33
Hartford (BDL)
Effective 2026-02-12 through 2026-03-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:18, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3521
12:03
Minneapolis/Saint Paul (MSP) 1

15:57
Newark Liberty, New York (EWR) C
Valid until 2026-01-05
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Duration: 2:54, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3521
14:20
Cleveland (CLE)

15:57
Newark Liberty, New York (EWR) C
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:37, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3521
14:25
Cleveland (CLE)

16:02
Newark Liberty, New York (EWR) C
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:37, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3521
15:10
Cedar Rapids (CID)

16:40
Chicago O'Hare (ORD) 2
Effective 2026-01-06 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:30, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3521
15:10
Cedar Rapids (CID)

16:40
Chicago O'Hare (ORD) 2
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:30, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3521
15:30
Cedar Rapids (CID)

16:45
Chicago O'Hare (ORD) 2
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:15, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3521
18:10
Chicago O'Hare (ORD) 2

21:54
Bangor (BGR)
Effective from 2026-06-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:44, non-stop
Embraer EMB 175 (E7W)
Non-Direct Flights:
United Airlines UA3521
15:30
Cedar Rapids (CID)

21:54
Bangor (BGR)
Effective from 2026-06-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:24, 1-stop
Embraer EMB 175 (E7W)
Ad mobi box here (300x250px) 8888825773 M FlightWNum Bottom Box
Parallax here
This flight number is listed as serving the following routes:
  • Buffalo (BUF) - Newark Liberty, New York (EWR)
  • Cedar Rapids (CID) - Bangor (BGR)
  • Cedar Rapids (CID) - Chicago O'Hare (ORD)
  • Chicago O'Hare (ORD) - Bangor (BGR)
  • Chicago O'Hare (ORD) - Hartford (BDL)
  • Cleveland (CLE) - Newark Liberty, New York (EWR)
  • Minneapolis/Saint Paul (MSP) - Newark Liberty, New York (EWR)
All United Airlines flights
Feedback     -     Disclaimer     -     Privacy - new_base.html - MOBILE

- CACHE: False - LANG: en - IS_EU: False