United Airlines flight UA 638: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 13:30 Denver (DEN) 18:46 Dulles, Washington (IAD)
UA 638 Non-stop Boeing 777 (777) 3:16 Valid until 2024-09-21
Sun 13:30 Denver (DEN) 18:55 Dulles, Washington (IAD)
UA 638 Non-stop Boeing 737 MAX 9 (7M9) 3:25 Operates only on 2024-09-22
Mon-Wed 13:30 Denver (DEN) 18:46 Dulles, Washington (IAD)
UA 638 Non-stop Boeing 777 (777) 3:16 Effective 2024-09-23 through 2024-09-25
Daily 18:40 San Francisco (SFO) 3 21:23 Honolulu (HNL) 2
UA 638 Non-stop Boeing 757-300 (753) 5:43 Effective 2024-10-27 through 2024-11-02
Daily 18:40 San Francisco (SFO) 3 22:23 Honolulu (HNL) 2
UA 638 Non-stop Boeing 757-300 (753) 5:43 Effective 2024-11-03 through 2024-12-02
Thu,Fri 18:40 San Francisco (SFO) 3 22:37 Honolulu (HNL) 2
UA 638 Non-stop Boeing 737-900 (739) 5:57 Effective 2025-03-06 through 2025-03-07
Sat 18:40 San Francisco (SFO) 3 22:17 Honolulu (HNL) 2
UA 638 Non-stop Boeing 737-900 (739) 5:37 Operates only on 2025-03-08
Mon-Fri,Sun 18:40 San Francisco (SFO) 3 21:37 Honolulu (HNL) 2
UA 638 Non-stop Boeing 737-900 (739) 5:57 Effective 2025-03-09 through 2025-03-28
Sat 18:40 San Francisco (SFO) 3 21:17 Honolulu (HNL) 2
UA 638 Non-stop Boeing 737-900 (739) 5:37 Effective 2025-03-15 through 2025-03-29
Daily 18:40 San Francisco (SFO) 3 21:28 Honolulu (HNL) 2
UA 638 Non-stop Boeing 737 MAX 9 (7M9) 5:48 Effective from 2025-03-30
Daily 18:45 San Francisco (SFO) 3 22:28 Honolulu (HNL) 2
UA 638 Non-stop Boeing 757-300 (753) 5:43 Effective 2024-12-03 through 2024-12-18
Daily 18:45 San Francisco (SFO) 3 22:45 Honolulu (HNL) 2
UA 638 Non-stop Boeing 737 MAX 9 (7M9) 6:00 Effective 2024-12-19 through 2025-01-06
Daily 18:53 San Francisco (SFO) 3 21:30 Honolulu (HNL) 2
UA 638 Non-stop Boeing 737 MAX 9 (7M9) 5:37 Effective 2024-09-26 through 2024-10-26
This flight number is listed as serving the following routes:


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United Airlines flight UA 638: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA638
13:30
Denver (DEN)

18:46
Dulles, Washington (IAD)
Valid until 2024-09-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:16, non-stop
Boeing 777 (777)
United Airlines UA638
13:30
Denver (DEN)

18:55
Dulles, Washington (IAD)
Operates only on 2024-09-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:25, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA638
13:30
Denver (DEN)

18:46
Dulles, Washington (IAD)
Effective 2024-09-23 through 2024-09-25
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:16, non-stop
Boeing 777 (777)
United Airlines UA638
18:40
San Francisco (SFO) 3

21:23
Honolulu (HNL) 2
Effective 2024-10-27 through 2024-11-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:43, non-stop
Boeing 757-300 (753)
United Airlines UA638
18:40
San Francisco (SFO) 3

22:23
Honolulu (HNL) 2
Effective 2024-11-03 through 2024-12-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:43, non-stop
Boeing 757-300 (753)
United Airlines UA638
18:40
San Francisco (SFO) 3

22:37
Honolulu (HNL) 2
Effective 2025-03-06 through 2025-03-07
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 5:57, non-stop
Boeing 737-900 (739)
United Airlines UA638
18:40
San Francisco (SFO) 3

22:17
Honolulu (HNL) 2
Operates only on 2025-03-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:37, non-stop
Boeing 737-900 (739)
United Airlines UA638
18:40
San Francisco (SFO) 3

21:37
Honolulu (HNL) 2
Effective 2025-03-09 through 2025-03-28
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 5:57, non-stop
Boeing 737-900 (739)
United Airlines UA638
18:40
San Francisco (SFO) 3

21:17
Honolulu (HNL) 2
Effective 2025-03-15 through 2025-03-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:37, non-stop
Boeing 737-900 (739)
United Airlines UA638
18:40
San Francisco (SFO) 3

21:28
Honolulu (HNL) 2
Effective from 2025-03-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:48, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA638
18:45
San Francisco (SFO) 3

22:28
Honolulu (HNL) 2
Effective 2024-12-03 through 2024-12-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:43, non-stop
Boeing 757-300 (753)
United Airlines UA638
18:45
San Francisco (SFO) 3

22:45
Honolulu (HNL) 2
Effective 2024-12-19 through 2025-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:00, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA638
18:53
San Francisco (SFO) 3

21:30
Honolulu (HNL) 2
Effective 2024-09-26 through 2024-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:37, non-stop
Boeing 737 MAX 9 (7M9)
This flight number is listed as serving the following routes:
  • Denver (DEN) - Dulles, Washington (IAD)
  • San Francisco (SFO) - Honolulu (HNL)
All United Airlines flights
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