United Airlines flight UA 4637: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Thu 07:45 Denver (DEN) 08:53 Tucson (TUS)
UA 4637 Non-stop Canadair CRJ 700 (CR7) 2:08 Operates only on 2025-05-01
Daily 07:45 Denver (DEN) 08:56 Tucson (TUS)
UA 4637 Non-stop Embraer EMB 175 (E7W) 2:11 Effective 2025-05-02 through 2025-05-21
Daily 07:50 Denver (DEN) 09:01 Tucson (TUS)
UA 4637 Non-stop Embraer EMB 175 (E7W) 2:11 Effective 2025-10-26 through 2025-11-01
Daily 07:50 Denver (DEN) 10:01 Tucson (TUS)
UA 4637 Non-stop Embraer EMB 175 (E7W) 2:11 Effective from 2025-11-02
Daily 14:00 Baton Rouge (BTR) 15:23 George Bush, Houston (IAH) B
UA 4637 Non-stop Canadair CRJ (CRJ) 1:23 Effective 2025-06-26 through 2025-08-18
Daily 17:39 Boise (BOI) 19:40 Denver (DEN)
UA 4637 Non-stop Canadair CRJ 700 (CR7) 2:01 Effective 2025-08-19 through 2025-10-25
Mon,Wed-Fri,Sun 18:30 Albany (ALB) 20:10 Chicago O'Hare (ORD) 2
UA 4637 Non-stop Embraer EMB 175 (E7W) 2:40 Effective 2025-06-04 through 2025-06-25
Tue,Sat 18:39 Santa Barbara (SBA) 19:51 San Francisco (SFO) 3
UA 4637 Non-stop Embraer EMB 175 (E7W) 1:12 Effective 2025-05-24 through 2025-05-31
Mon,Wed-Fri 18:43 Albany (ALB) 20:23 Chicago O'Hare (ORD) 2
UA 4637 Non-stop Embraer EMB 175 (E7W) 2:40 Effective 2025-05-22 through 2025-05-30
Mon,Sun 18:43 Albany (ALB) 20:23 Chicago O'Hare (ORD) 2
UA 4637 Non-stop Embraer EMB 175 (E7W) 2:40 Effective 2025-06-01 through 2025-06-02
Tue,Sat 18:50 Santa Barbara (SBA) 20:02 San Francisco (SFO) 3
UA 4637 Non-stop Embraer EMB 175 (E7W) 1:12 Effective 2025-06-03 through 2025-06-24
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This flight number is listed as serving the following routes:


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United Airlines flight UA 4637: Multiple routes
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Select flight date:  Show Calendar
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA4637
07:45
Denver (DEN)

08:53
Tucson (TUS)
Operates only on 2025-05-01
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:08, non-stop
Canadair CRJ 700 (CR7)
United Airlines UA4637
07:45
Denver (DEN)

08:56
Tucson (TUS)
Effective 2025-05-02 through 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:11, non-stop
Embraer EMB 175 (E7W)
United Airlines UA4637
07:50
Denver (DEN)

09:01
Tucson (TUS)
Effective 2025-10-26 through 2025-11-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:11, non-stop
Embraer EMB 175 (E7W)
United Airlines UA4637
07:50
Denver (DEN)

10:01
Tucson (TUS)
Effective from 2025-11-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:11, non-stop
Embraer EMB 175 (E7W)
United Airlines UA4637
14:00
Baton Rouge (BTR)

15:23
George Bush, Houston (IAH) B
Effective 2025-06-26 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:23, non-stop
Canadair CRJ (CRJ)
United Airlines UA4637
17:39
Boise (BOI)

19:40
Denver (DEN)
Effective 2025-08-19 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:01, non-stop
Canadair CRJ 700 (CR7)
United Airlines UA4637
18:30
Albany (ALB)

20:10
Chicago O'Hare (ORD) 2
Effective 2025-06-04 through 2025-06-25
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:40, non-stop
Embraer EMB 175 (E7W)
United Airlines UA4637
18:39
Santa Barbara (SBA)

19:51
San Francisco (SFO) 3
Effective 2025-05-24 through 2025-05-31
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:12, non-stop
Embraer EMB 175 (E7W)
United Airlines UA4637
18:43
Albany (ALB)

20:23
Chicago O'Hare (ORD) 2
Effective 2025-05-22 through 2025-05-30
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:40, non-stop
Embraer EMB 175 (E7W)
United Airlines UA4637
18:43
Albany (ALB)

20:23
Chicago O'Hare (ORD) 2
Effective 2025-06-01 through 2025-06-02
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:40, non-stop
Embraer EMB 175 (E7W)
United Airlines UA4637
18:50
Santa Barbara (SBA)

20:02
San Francisco (SFO) 3
Effective 2025-06-03 through 2025-06-24
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:12, non-stop
Embraer EMB 175 (E7W)
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This flight number is listed as serving the following routes:
  • Albany (ALB) - Chicago O'Hare (ORD)
  • Baton Rouge (BTR) - George Bush, Houston (IAH)
  • Boise (BOI) - Denver (DEN)
  • Denver (DEN) - Tucson (TUS)
  • Santa Barbara (SBA) - San Francisco (SFO)
All United Airlines flights
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