United Airlines flight UA 3621: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon-Sat 06:00 Greenville/Spartanburg (GSP) 07:59 Newark Liberty, New York (EWR) C
UA 3621 Non-stop Embraer EMB 175 (E7W) 1:59 Effective 2025-06-26 through 2025-08-18
Sun 06:05 Greenville/Spartanburg (GSP) 08:04 Newark Liberty, New York (EWR) C
UA 3621 Non-stop Embraer EMB 175 (E7W) 1:59 Effective 2025-06-29 through 2025-08-17
Mon-Wed,Fri 10:30 Greensboro/High Point (GSO) 11:53 Chicago O'Hare (ORD) 2
UA 3621 Non-stop Embraer EMB 175 (E7W) 2:23 Effective 2025-05-27 through 2025-06-04
Thu,Fri 10:30 Greensboro/High Point (GSO) 11:53 Chicago O'Hare (ORD) 2
UA 3621 Non-stop Embraer EMB 175 (E7W) 2:23 Effective 2025-06-05 through 2025-06-06
Mon,Thu,Fri 11:03 Pittsburgh (PIT) 11:53 Chicago O'Hare (ORD) 2
UA 3621 Non-stop Embraer EMB 175 (E7W) 1:50 Effective 2025-05-22 through 2025-05-29
Sun 11:03 Pittsburgh (PIT) 11:53 Chicago O'Hare (ORD) 2
UA 3621 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:50 Effective 2025-05-25 through 2025-06-01
Mon-Fri,Sun 11:03 Pittsburgh (PIT) 11:53 Chicago O'Hare (ORD) 2
UA 3621 Non-stop Embraer EMB 175 (E7W) 1:50 Effective 2025-06-08 through 2025-06-25
Daily 11:29 Newark Liberty, New York (EWR) C 13:04 Montreal-Trudeau (YUL)
UA 3621 Non-stop Embraer EMB 175 (E7W) 1:35 Effective 2025-08-19 through 2025-09-24
Daily 11:34 Newark Liberty, New York (EWR) C 13:09 Montreal-Trudeau (YUL)
UA 3621 Non-stop Embraer EMB 175 (E7W) 1:35 Effective 2025-09-25 through 2025-10-25
Sat 12:49 Jacksonville (JAX) 14:48 Dulles, Washington (IAD)
UA 3621 Non-stop Embraer EMB 175 (E7W) 1:59 Effective 2025-05-24 through 2025-06-21
Daily 20:29 Newark Liberty, New York (EWR) C 22:10 Madison (MSN)
UA 3621 Non-stop Embraer EMB 175 (E7W) 2:41 Effective 2025-10-26 through 2026-02-11
Daily 21:05 Chicago O'Hare (ORD) 2 23:58 Toronto Pearson (YYZ) 1
UA 3621 Non-stop Embraer EMB 175 (E7W) 1:53 Valid until 2025-05-21
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This flight number is listed as serving the following routes:


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United Airlines flight UA 3621: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA3621
06:00
Greenville/Spartanburg (GSP)

07:59
Newark Liberty, New York (EWR) C
Effective 2025-06-26 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 1:59, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3621
06:05
Greenville/Spartanburg (GSP)

08:04
Newark Liberty, New York (EWR) C
Effective 2025-06-29 through 2025-08-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:59, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3621
10:30
Greensboro/High Point (GSO)

11:53
Chicago O'Hare (ORD) 2
Effective 2025-05-27 through 2025-06-04
Mon
Tue
Wed
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:23, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3621
10:30
Greensboro/High Point (GSO)

11:53
Chicago O'Hare (ORD) 2
Effective 2025-06-05 through 2025-06-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:23, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3621
11:03
Pittsburgh (PIT)

11:53
Chicago O'Hare (ORD) 2
Effective 2025-05-22 through 2025-05-29
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:50, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3621
11:03
Pittsburgh (PIT)

11:53
Chicago O'Hare (ORD) 2
Effective 2025-05-25 through 2025-06-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:50, non-stop
Embraer EMB 170 / EMB 175 (E70)
United Airlines UA3621
11:03
Pittsburgh (PIT)

11:53
Chicago O'Hare (ORD) 2
Effective 2025-06-08 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:50, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3621
11:29
Newark Liberty, New York (EWR) C

13:04
Montreal-Trudeau (YUL)
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:35, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3621
11:34
Newark Liberty, New York (EWR) C

13:09
Montreal-Trudeau (YUL)
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:35, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3621
12:49
Jacksonville (JAX)

14:48
Dulles, Washington (IAD)
Effective 2025-05-24 through 2025-06-21
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:59, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3621
20:29
Newark Liberty, New York (EWR) C

22:10
Madison (MSN)
Effective 2025-10-26 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:41, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3621
21:05
Chicago O'Hare (ORD) 2

23:58
Toronto Pearson (YYZ) 1
Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:53, non-stop
Embraer EMB 175 (E7W)
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Toronto Pearson (YYZ)
  • Greensboro/High Point (GSO) - Chicago O'Hare (ORD)
  • Greenville/Spartanburg (GSP) - Newark Liberty, New York (EWR)
  • Jacksonville (JAX) - Dulles, Washington (IAD)
  • Newark Liberty, New York (EWR) - Madison (MSN)
  • Newark Liberty, New York (EWR) - Montreal-Trudeau (YUL)
  • Pittsburgh (PIT) - Chicago O'Hare (ORD)
All United Airlines flights
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