United Airlines flight UA 4066: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon-Fri 08:35 Washington Dulles (IAD) 09:43 Richmond (RIC)
UA 4066 Non-stop Embraer EMB 175 (E7W) 1:08 Valid until 2026-01-05
Mon-Fri,Sun 09:44 Houston George Bush (IAH) B 11:26 Colorado Springs (COS)
UA 4066 Non-stop Embraer EMB 175 (E7W) 2:42 Effective 2026-01-06 through 2026-02-11
Daily 09:45 Houston George Bush (IAH) B 11:28 Colorado Springs (COS)
UA 4066 Non-stop Embraer EMB 175 (E7W) 2:43 Effective 2026-04-30 through 2026-05-20
Daily 09:49 Houston George Bush (IAH) B 11:32 Colorado Springs (COS)
UA 4066 Non-stop Embraer EMB 175 (E7W) 2:43 Effective 2026-03-05 through 2026-04-29
Daily 09:50 Houston George Bush (IAH) B 11:33 Colorado Springs (COS)
UA 4066 Non-stop Embraer EMB 175 (E7W) 2:43 Effective 2026-02-12 through 2026-03-04
This flight number is listed as serving the following routes:


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United Airlines flight UA 4066: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA4066
08:35
Washington Dulles (IAD)

09:43
Richmond (RIC)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 1:08, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA4066
09:44
Houston George Bush (IAH) B

11:26
Colorado Springs (COS)
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:42, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA4066
09:45
Houston George Bush (IAH) B

11:28
Colorado Springs (COS)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:43, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA4066
09:49
Houston George Bush (IAH) B

11:32
Colorado Springs (COS)
Effective 2026-03-05 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:43, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA4066
09:50
Houston George Bush (IAH) B

11:33
Colorado Springs (COS)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:43, non-stop
Embraer EMB 175 (E7W)
This flight number is listed as serving the following routes:
  • Houston George Bush (IAH) - Colorado Springs (COS)
  • Washington Dulles (IAD) - Richmond (RIC)
All United Airlines flights
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