United Airlines
flight
UA 5921:
Multiple routes
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA5921
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:04, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA5921
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:04, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA5921
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:57, non-stop
Canadair CRJ 550 (CR5)
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA5921
Effective 2026-02-24 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 2:07, non-stop
Canadair CRJ (CRJ)
Canadair CRJ (CRJ)
Direct Flights:
United Airlines UA5921
Effective 2026-02-12 through 2026-02-23
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:04, non-stop
Canadair CRJ 550 (CR5)
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA5921
Effective 2026-02-28 through 2026-03-06
Mon
-
-
Tue
-
-
Wed
-
-
Thu
Fri
Sat
Sun
-
-
Duration: 2:04, non-stop
Canadair CRJ 550 (CR5)
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA5921
Effective 2026-03-08 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 2:04, non-stop
Canadair CRJ 550 (CR5)
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA5921
Valid until 2026-01-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:18, non-stop
Embraer EMB 175 (E7W)
Embraer EMB 175 (E7W)
This flight number is listed as serving the following routes:
- Knoxville (TYS) - Chicago O'Hare (ORD)
- San Francisco (SFO) - Santa Barbara (SBA)