United Airlines flight UA 604: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Thu 00:57 Denver (DEN) 06:00 Atlanta (ATL) N
UA 604 Non-stop Airbus A320 (320) 3:03 Operates only on 2025-05-22
Tue,Thu-Sat 00:57 Denver (DEN) 06:00 Atlanta (ATL) N
UA 604 Non-stop Boeing 737 MAX 9 (7M9) 3:03 Effective 2025-05-23 through 2025-05-31
Mon,Tue,Thu-Sat 00:57 Denver (DEN) 06:00 Atlanta (ATL) N
UA 604 Non-stop Boeing 737 MAX 9 (7M9) 3:03 Effective 2025-06-02 through 2025-06-24
Mon,Tue,Thu,Fri 00:57 Denver (DEN) 06:00 Atlanta (ATL) N
UA 604 Non-stop Boeing 737 MAX 9 (7M9) 3:03 Effective 2025-06-26 through 2025-08-18
Sat 00:57 Denver (DEN) 06:00 Atlanta (ATL) N
UA 604 Non-stop Boeing 737-900 (739) 3:03 Operates only on 2025-06-28
Sat 00:57 Denver (DEN) 06:00 Atlanta (ATL) N
UA 604 Non-stop Boeing 737-900 (739) 3:03 Effective 2025-07-12 through 2025-08-16
Sun 07:10 Chicago O'Hare (ORD) 1 08:54 Nashville (BNA)
UA 604 Non-stop Airbus A320 (320) 1:44 Effective 2025-08-03 through 2025-08-17
Sun 07:30 Portland (PWM) 10:08 Denver (DEN)
UA 604 Non-stop Boeing 737-800 (738) 4:38 Effective 2025-06-29 through 2025-07-27
Sun 08:00 Fort Myers (RSW) 10:13 Denver (DEN)
UA 604 Non-stop Boeing 737-800 (738) 4:13 Effective 2025-06-01 through 2025-06-22
Daily 09:50 Denver (DEN) 10:50 Las Vegas Harry Reid (LAS) 3
UA 604 Non-stop Boeing 737-900 (739) 2:00 Effective 2025-09-25 through 2025-10-25
Daily 10:02 Denver (DEN) 11:04 Las Vegas Harry Reid (LAS) 3
UA 604 Non-stop Boeing 737-900 (739) 2:02 Effective 2025-10-26 through 2025-12-17
Daily 10:02 Denver (DEN) 11:04 Las Vegas Harry Reid (LAS) 3
UA 604 Non-stop Boeing 737-900 (739) 2:02 Effective from 2026-01-06
Mon-Fri,Sun 10:07 Denver (DEN) 11:11 Las Vegas Harry Reid (LAS) 3
UA 604 Non-stop Boeing 737-900 (739) 2:04 Valid until 2025-05-02
Mon-Fri,Sun 10:07 Denver (DEN) 11:11 Las Vegas Harry Reid (LAS) 3
UA 604 Non-stop Boeing 737-900 (739) 2:04 Effective 2025-05-05 through 2025-05-21
Sun 10:15 Denver (DEN) 11:19 Las Vegas Harry Reid (LAS) 3
UA 604 Non-stop Boeing 737-900 (739) 2:04 Operates only on 2025-05-04
Daily 12:47 Dulles, Washington (IAD) 14:05 John Glenn Columbus (CMH)
UA 604 Non-stop Boeing 737-700 (73G) 1:18 Effective 2025-08-19 through 2025-09-24
Wed 14:38 Milwaukee (MKE) 16:18 Denver (DEN)
UA 604 Non-stop Airbus A320 (320) 2:40 Effective 2025-06-04 through 2025-06-25
Daily 15:19 Vail/Eagle (EGE) 19:01 George Bush, Houston (IAH) C
UA 604 Non-stop Boeing 737-700 (73G) 2:42 Effective 2025-12-18 through 2026-01-05
Sat 17:20 Denver (DEN) 21:54 Louisville (SDF)
UA 604 Non-stop Boeing 737 MAX 8 (7M8) 2:34 Operates only on 2025-05-03
Wed 19:11 Denver (DEN) 01:03 Newark Liberty, New York (EWR) C
UA 604 Non-stop Boeing 737 MAX 9 (7M9) 3:52 Operates only on 2025-06-25
The flight arrives 1 day after departure.
Non-Direct Flights:
Wed 14:38 Milwaukee (MKE) 01:03 Newark Liberty, New York (EWR) C
UA 604 1-stop Airbus A320 (320) 9:25 Operates only on 2025-06-25
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:
United Airlines flight UA 604: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:

United Airlines UA604
00:57

06:00
Operates only on 2025-05-22
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 3:03, non-stop
Airbus A320 (320)

United Airlines UA604
00:57

06:00
Effective 2025-05-23 through 2025-05-31
Mon
-
Tue
Wed
-
Thu
Fri
Sat
Sun
-
Duration: 3:03, non-stop
Boeing 737 MAX 9 (7M9)

United Airlines UA604
00:57

06:00
Effective 2025-06-02 through 2025-06-24
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
-
Duration: 3:03, non-stop
Boeing 737 MAX 9 (7M9)

United Airlines UA604
00:57

06:00
Effective 2025-06-26 through 2025-08-18
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:03, non-stop
Boeing 737 MAX 9 (7M9)

United Airlines UA604
00:57

06:00
Operates only on 2025-06-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:03, non-stop
Boeing 737-900 (739)

United Airlines UA604
00:57

06:00
Effective 2025-07-12 through 2025-08-16
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:03, non-stop
Boeing 737-900 (739)

United Airlines UA604
Effective 2025-08-03 through 2025-08-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:44, non-stop
Airbus A320 (320)

United Airlines UA604
Effective 2025-06-29 through 2025-07-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:38, non-stop
Boeing 737-800 (738)

United Airlines UA604
Effective 2025-06-01 through 2025-06-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:13, non-stop
Boeing 737-800 (738)

United Airlines UA604
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:00, non-stop
Boeing 737-900 (739)

United Airlines UA604
Effective 2025-10-26 through 2025-12-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:02, non-stop
Boeing 737-900 (739)

United Airlines UA604
Effective from 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:02, non-stop
Boeing 737-900 (739)

United Airlines UA604
Valid until 2025-05-02
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:04, non-stop
Boeing 737-900 (739)

United Airlines UA604
Effective 2025-05-05 through 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:04, non-stop
Boeing 737-900 (739)

United Airlines UA604
Operates only on 2025-05-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:04, non-stop
Boeing 737-900 (739)

United Airlines UA604
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:18, non-stop
Boeing 737-700 (73G)

United Airlines UA604
Effective 2025-06-04 through 2025-06-25
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:40, non-stop
Airbus A320 (320)

United Airlines UA604
Effective 2025-12-18 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:42, non-stop
Boeing 737-700 (73G)

United Airlines UA604
Operates only on 2025-05-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:34, non-stop
Boeing 737 MAX 8 (7M8)

United Airlines UA604
Operates only on 2025-06-25
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:52, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Non-Direct Flights:

United Airlines UA604
Operates only on 2025-06-25
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 9:25, 1-stop
Airbus A320 (320)
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Nashville (BNA)
  • Denver (DEN) - Atlanta (ATL)
  • Denver (DEN) - Las Vegas Harry Reid (LAS)
  • Denver (DEN) - Louisville (SDF)
  • Denver (DEN) - Newark Liberty, New York (EWR)
  • Dulles, Washington (IAD) - John Glenn Columbus (CMH)
  • Fort Myers (RSW) - Denver (DEN)
  • Milwaukee (MKE) - Denver (DEN)
  • Milwaukee (MKE) - Newark Liberty, New York (EWR)
  • Portland (PWM) - Denver (DEN)
  • Vail/Eagle (EGE) - George Bush, Houston (IAH)