United Airlines flight UA 5251: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 10:13 Vail/Eagle (EGE) 12:09 San Francisco (SFO) 3
UA 5251 Non-stop Embraer EMB 175 (E7W) 2:56 Effective 2026-01-06 through 2026-02-03
Wed 10:13 Vail/Eagle (EGE) 12:08 San Francisco (SFO) 3
UA 5251 Non-stop Embraer EMB 175 (E7W) 2:55 Operates only on 2026-02-04
Daily 10:13 Vail/Eagle (EGE) 12:09 San Francisco (SFO) 3
UA 5251 Non-stop Embraer EMB 175 (E7W) 2:56 Effective 2026-02-05 through 2026-02-11
Daily 11:18 Vail/Eagle (EGE) 12:45 Denver (DEN)
UA 5251 Non-stop Embraer EMB 175 (E7W) 1:27 Effective 2026-02-12 through 2026-03-28
Daily 17:30 Green Bay (GRB) 18:53 Chicago O'Hare (ORD) 2
UA 5251 Non-stop Canadair CRJ (CRJ) 1:23 Effective 2026-04-30 through 2026-05-20
Daily 19:15 Denver (DEN) 20:16 Colorado Springs (COS)
UA 5251 Non-stop Embraer EMB 175 (E7W) 1:01 Valid until 2026-01-05
Daily 19:48 Chicago O'Hare (ORD) 2 22:00 Fayetteville/Springdale (XNA)
UA 5251 Non-stop Embraer EMB 175 (E7W) 2:12 Effective 2026-03-29 through 2026-04-29
Daily 19:51 Chicago O'Hare (ORD) 2 21:47 Fayetteville/Springdale (XNA)
UA 5251 Non-stop Embraer EMB 175 (E7W) 1:56 Effective from 2026-05-21
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This flight number is listed as serving the following routes:


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United Airlines flight UA 5251: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA5251
10:13
Vail/Eagle (EGE)

12:09
San Francisco (SFO) 3
Effective 2026-01-06 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:56, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA5251
10:13
Vail/Eagle (EGE)

12:08
San Francisco (SFO) 3
Operates only on 2026-02-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:55, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA5251
10:13
Vail/Eagle (EGE)

12:09
San Francisco (SFO) 3
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:56, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA5251
11:18
Vail/Eagle (EGE)

12:45
Denver (DEN)
Effective 2026-02-12 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:27, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA5251
17:30
Green Bay (GRB)

18:53
Chicago O'Hare (ORD) 2
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:23, non-stop
Canadair CRJ (CRJ)
Direct Flights:
United Airlines UA5251
19:15
Denver (DEN)

20:16
Colorado Springs (COS)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:01, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA5251
19:48
Chicago O'Hare (ORD) 2

22:00
Fayetteville/Springdale (XNA)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:12, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA5251
19:51
Chicago O'Hare (ORD) 2

21:47
Fayetteville/Springdale (XNA)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:56, non-stop
Embraer EMB 175 (E7W)
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Fayetteville/Springdale (XNA)
  • Denver (DEN) - Colorado Springs (COS)
  • Green Bay (GRB) - Chicago O'Hare (ORD)
  • Vail/Eagle (EGE) - Denver (DEN)
  • Vail/Eagle (EGE) - San Francisco (SFO)
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