United Airlines
flight
UA 3666:
Multiple routes
Ad mobi flat here (320x100px) 6074960173 M FlightWNum Top Flat
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA3666
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:38, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3666
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:02, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3666
Effective 2026-02-12 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 2:07, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3666
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:10, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3666
Effective 2026-02-14 through 2026-02-28
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Duration: 1:21, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3666
Effective 2026-01-09 through 2026-01-18
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
Sat
Sun
Duration: 2:59, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3666
Effective 2026-01-19 through 2026-01-25
Mon
Tue
-
-
Wed
-
-
Thu
-
-
Fri
Sat
Sun
Duration: 2:59, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3666
Effective 2026-01-30 through 2026-02-08
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
Sat
Sun
Duration: 2:59, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3666
Effective from 2026-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:01, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3666
Valid until 2026-01-05
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 1:45, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3666
Valid until 2026-01-04
Mon
Tue
Wed
-
-
Thu
Fri
Sat
Sun
Duration: 1:22, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3666
Operates only on 2026-01-05
Mon
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 1:22, non-stop
Embraer EMB 170 / EMB 175 (E70)
Embraer EMB 170 / EMB 175 (E70)
Direct Flights:
United Airlines UA3666
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:22, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Non-Direct Flights:
United Airlines UA3666
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:32, 1-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Non-Direct Flights:
United Airlines UA3666
Effective from 2026-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:01, 1-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Non-Direct Flights:
United Airlines UA3666
Valid until 2026-01-05
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 4:22, 1-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
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This flight number is listed as serving the following routes:
- Burlington (BTV) - Chicago O'Hare (ORD)
- Chicago O'Hare (ORD) - Ronald Reagan Washington (DCA)
- Chicago O'Hare (ORD) - Traverse City (TVC)
- Cleveland (CLE) - Newark Liberty, New York (EWR)
- Cleveland (CLE) - Syracuse (SYR)
- Kansas City (MCI) - Newark Liberty, New York (EWR)
- Kansas City (MCI) - Syracuse (SYR)
- Newark Liberty, New York (EWR) - Asheville/Hendersonville (AVL)
- Newark Liberty, New York (EWR) - Syracuse (SYR)
- Portland (PWM) - Asheville/Hendersonville (AVL)
- Portland (PWM) - Newark Liberty, New York (EWR)