United Airlines flight UA 3668: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Mon-Fri,Sun 07:12 Chicago O'Hare (ORD) 2 09:31 Indianapolis (IND)
UA 3668 Non-stop Embraer EMB 175 (E7W) 1:19 Effective 2025-05-22 through 2025-06-25
Sat 07:15 Chicago O'Hare (ORD) 2 09:58 Buffalo (BUF)
UA 3668 Non-stop Embraer EMB 175 (E7W) 1:43 Effective 2025-08-02 through 2025-08-16
Daily 07:17 Chicago O'Hare (ORD) 2 09:21 Indianapolis (IND)
UA 3668 Non-stop Embraer EMB 175 (E7W) 1:04 Effective from 2025-10-26
Sun 07:20 Chicago O'Hare (ORD) 2 10:03 Buffalo (BUF)
UA 3668 Non-stop Embraer EMB 175 (E7W) 1:43 Effective 2025-08-03 through 2025-08-17
Daily 08:45 Chicago O'Hare (ORD) 2 11:01 Indianapolis (IND)
UA 3668 Non-stop Embraer EMB 175 (E7W) 1:16 Valid until 2025-05-21
Mon,Tue,Thu 08:45 Chicago O'Hare (ORD) 2 11:04 Indianapolis (IND)
UA 3668 Non-stop Embraer EMB 175 (E7W) 1:19 Effective 2025-06-26 through 2025-08-18
Sun 13:45 Chicago O'Hare (ORD) 2 16:49 Syracuse (SYR)
UA 3668 Non-stop Embraer EMB 175 (E7W) 2:04 Effective 2025-06-29 through 2025-07-27
Wed 13:48 Chicago O'Hare (ORD) 2 16:52 Syracuse (SYR)
UA 3668 Non-stop Embraer EMB 175 (E7W) 2:04 Effective 2025-07-02 through 2025-07-30
Sat 14:15 Chicago O'Hare (ORD) 2 16:19 Grand Rapids (GRR)
UA 3668 Non-stop Embraer EMB 175 (E7W) 1:04 Operates only on 2025-05-24
Daily 17:15 Dulles, Washington (IAD) 18:51 Detroit (DTW) E
UA 3668 Non-stop Embraer EMB 175 (E7W) 1:36 Effective 2025-08-19 through 2025-09-24
Daily 17:15 Dulles, Washington (IAD) 18:54 Detroit (DTW) E
UA 3668 Non-stop Embraer EMB 175 (E7W) 1:39 Effective 2025-09-25 through 2025-10-25
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This flight number is listed as serving the following routes:


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United Airlines flight UA 3668: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA3668
07:12
Chicago O'Hare (ORD) 2

09:31
Indianapolis (IND)
Effective 2025-05-22 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:19, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3668
07:15
Chicago O'Hare (ORD) 2

09:58
Buffalo (BUF)
Effective 2025-08-02 through 2025-08-16
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:43, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3668
07:17
Chicago O'Hare (ORD) 2

09:21
Indianapolis (IND)
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:04, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3668
07:20
Chicago O'Hare (ORD) 2

10:03
Buffalo (BUF)
Effective 2025-08-03 through 2025-08-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:43, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3668
08:45
Chicago O'Hare (ORD) 2

11:01
Indianapolis (IND)
Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:16, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3668
08:45
Chicago O'Hare (ORD) 2

11:04
Indianapolis (IND)
Effective 2025-06-26 through 2025-08-18
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:19, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3668
13:45
Chicago O'Hare (ORD) 2

16:49
Syracuse (SYR)
Effective 2025-06-29 through 2025-07-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:04, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3668
13:48
Chicago O'Hare (ORD) 2

16:52
Syracuse (SYR)
Effective 2025-07-02 through 2025-07-30
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:04, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3668
14:15
Chicago O'Hare (ORD) 2

16:19
Grand Rapids (GRR)
Operates only on 2025-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:04, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3668
17:15
Dulles, Washington (IAD)

18:51
Detroit (DTW) E
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:36, non-stop
Embraer EMB 175 (E7W)
United Airlines UA3668
17:15
Dulles, Washington (IAD)

18:54
Detroit (DTW) E
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:39, non-stop
Embraer EMB 175 (E7W)
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Buffalo (BUF)
  • Chicago O'Hare (ORD) - Grand Rapids (GRR)
  • Chicago O'Hare (ORD) - Indianapolis (IND)
  • Chicago O'Hare (ORD) - Syracuse (SYR)
  • Dulles, Washington (IAD) - Detroit (DTW)
All United Airlines flights
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