United Airlines flight UA 664: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon-Wed,Fri-Sun 07:00 Las Vegas Harry Reid (LAS) 3 12:44 Chicago O'Hare (ORD) 1
UA 664 Non-stop Boeing 737-900 (739) 3:44 Valid until 2026-01-05
Daily 07:00 Las Vegas Harry Reid (LAS) 3 12:46 Chicago O'Hare (ORD) 1
UA 664 Non-stop Airbus A321neo (32Q) 3:46 Effective 2026-03-05 through 2026-03-28
Daily 07:00 Las Vegas Harry Reid (LAS) 3 12:47 Chicago O'Hare (ORD) 1
UA 664 Non-stop Airbus A321neo (32Q) 3:47 Effective 2026-03-29 through 2026-05-20
Daily 07:00 Las Vegas Harry Reid (LAS) 3 12:46 Chicago O'Hare (ORD) 1
UA 664 Non-stop Boeing 737-900 (739) 3:46 Effective from 2026-05-21
Daily 07:05 Las Vegas Harry Reid (LAS) 3 12:51 Chicago O'Hare (ORD) 1
UA 664 Non-stop Airbus A321neo (32Q) 3:46 Effective 2026-02-12 through 2026-03-04
Mon-Sat 07:15 Las Vegas Harry Reid (LAS) 3 13:01 Chicago O'Hare (ORD) 1
UA 664 Non-stop Airbus A321neo (32Q) 3:46 Effective 2026-01-06 through 2026-02-11
Sun 07:15 Las Vegas Harry Reid (LAS) 3 12:57 Chicago O'Hare (ORD) 1
UA 664 Non-stop Boeing 737-800 (738) 3:42 Effective 2026-01-11 through 2026-02-08
Thu 09:00 Cincinnati (CVG) 09:33 Chicago O'Hare (ORD) 1
UA 664 Non-stop Airbus A319 (319) 1:33 Valid until 2026-01-01
Daily 15:49 Chicago O'Hare (ORD) 1 17:34 Kansas City (MCI)
UA 664 Non-stop Airbus A320 (320) 1:45 Effective 2026-04-30 through 2026-05-20
Daily 15:50 Chicago O'Hare (ORD) 1 17:21 Kansas City (MCI)
UA 664 Non-stop Airbus A320 (320) 1:31 Effective from 2026-05-21
Mon-Thu,Sat,Sun 16:14 Chicago O'Hare (ORD) 1 20:07 Sarasota/Bradenton (SRQ)
UA 664 Non-stop Boeing 737-700 (73G) 2:53 Effective 2026-03-05 through 2026-03-28
Fri 16:14 Chicago O'Hare (ORD) 1 20:08 Sarasota/Bradenton (SRQ)
UA 664 Non-stop Airbus A320 (320) 2:54 Effective 2026-03-06 through 2026-03-27
Daily 16:14 Chicago O'Hare (ORD) 1 20:20 Sarasota/Bradenton (SRQ)
UA 664 Non-stop Airbus A320 (320) 3:06 Effective 2026-03-29 through 2026-04-29
Mon,Thu,Sat,Sun 16:18 Chicago O'Hare (ORD) 1 20:29 West Palm Beach (PBI)
UA 664 Non-stop Boeing 737-900 (739) 3:11 Effective 2026-02-12 through 2026-03-02
Tue,Wed,Fri 16:18 Chicago O'Hare (ORD) 1 20:29 West Palm Beach (PBI)
UA 664 Non-stop Boeing 737-800 (738) 3:11 Effective 2026-02-13 through 2026-03-04
Non-Direct Flights:
Mon-Thu,Sat,Sun 07:00 Las Vegas Harry Reid (LAS) 3 20:07 Sarasota/Bradenton (SRQ)
UA 664 1-stop Airbus A321neo (32Q) 10:07 Effective 2026-03-05 through 2026-03-28
Fri 07:00 Las Vegas Harry Reid (LAS) 3 20:08 Sarasota/Bradenton (SRQ)
UA 664 1-stop Airbus A321neo (32Q) 10:08 Effective 2026-03-06 through 2026-03-27
Daily 07:00 Las Vegas Harry Reid (LAS) 3 20:20 Sarasota/Bradenton (SRQ)
UA 664 1-stop Airbus A321neo (32Q) 10:20 Effective 2026-03-29 through 2026-04-29
Daily 07:00 Las Vegas Harry Reid (LAS) 3 17:34 Kansas City (MCI)
UA 664 1-stop Airbus A321neo (32Q) 8:34 Effective 2026-04-30 through 2026-05-20
Daily 07:00 Las Vegas Harry Reid (LAS) 3 17:21 Kansas City (MCI)
UA 664 1-stop Boeing 737-900 (739) 8:21 Effective from 2026-05-21
Daily 07:05 Las Vegas Harry Reid (LAS) 3 20:29 West Palm Beach (PBI)
UA 664 1-stop Airbus A321neo (32Q) 10:24 Effective 2026-02-12 through 2026-03-04
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This flight number is listed as serving the following routes:


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United Airlines flight UA 664: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA664
07:00
Las Vegas Harry Reid (LAS) 3

12:44
Chicago O'Hare (ORD) 1
Valid until 2026-01-05
Mon
Tue
Wed
Thu
-
Fri
Sat
Sun
Duration: 3:44, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA664
07:00
Las Vegas Harry Reid (LAS) 3

12:46
Chicago O'Hare (ORD) 1
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:46, non-stop
Airbus A321neo (32Q)
Direct Flights:
United Airlines UA664
07:00
Las Vegas Harry Reid (LAS) 3

12:47
Chicago O'Hare (ORD) 1
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:47, non-stop
Airbus A321neo (32Q)
Direct Flights:
United Airlines UA664
07:00
Las Vegas Harry Reid (LAS) 3

12:46
Chicago O'Hare (ORD) 1
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:46, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA664
07:05
Las Vegas Harry Reid (LAS) 3

12:51
Chicago O'Hare (ORD) 1
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:46, non-stop
Airbus A321neo (32Q)
Direct Flights:
United Airlines UA664
07:15
Las Vegas Harry Reid (LAS) 3

13:01
Chicago O'Hare (ORD) 1
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 3:46, non-stop
Airbus A321neo (32Q)
Direct Flights:
United Airlines UA664
07:15
Las Vegas Harry Reid (LAS) 3

12:57
Chicago O'Hare (ORD) 1
Effective 2026-01-11 through 2026-02-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:42, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA664
09:00
Cincinnati (CVG)

09:33
Chicago O'Hare (ORD) 1
Valid until 2026-01-01
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:33, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA664
15:49
Chicago O'Hare (ORD) 1

17:34
Kansas City (MCI)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:45, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA664
15:50
Chicago O'Hare (ORD) 1

17:21
Kansas City (MCI)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:31, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA664
16:14
Chicago O'Hare (ORD) 1

20:07
Sarasota/Bradenton (SRQ)
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Duration: 2:53, non-stop
Boeing 737-700 (73G)
Direct Flights:
United Airlines UA664
16:14
Chicago O'Hare (ORD) 1

20:08
Sarasota/Bradenton (SRQ)
Effective 2026-03-06 through 2026-03-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:54, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA664
16:14
Chicago O'Hare (ORD) 1

20:20
Sarasota/Bradenton (SRQ)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:06, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA664
16:18
Chicago O'Hare (ORD) 1

20:29
West Palm Beach (PBI)
Effective 2026-02-12 through 2026-03-02
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
Sun
Duration: 3:11, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA664
16:18
Chicago O'Hare (ORD) 1

20:29
West Palm Beach (PBI)
Effective 2026-02-13 through 2026-03-04
Mon
-
Tue
Wed
Thu
-
Fri
Sat
-
Sun
-
Duration: 3:11, non-stop
Boeing 737-800 (738)
Non-Direct Flights:
United Airlines UA664
07:00
Las Vegas Harry Reid (LAS) 3

20:07
Sarasota/Bradenton (SRQ)
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Duration: 10:07, 1-stop
Airbus A321neo (32Q)
Non-Direct Flights:
United Airlines UA664
07:00
Las Vegas Harry Reid (LAS) 3

20:08
Sarasota/Bradenton (SRQ)
Effective 2026-03-06 through 2026-03-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 10:08, 1-stop
Airbus A321neo (32Q)
Non-Direct Flights:
United Airlines UA664
07:00
Las Vegas Harry Reid (LAS) 3

20:20
Sarasota/Bradenton (SRQ)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:20, 1-stop
Airbus A321neo (32Q)
Non-Direct Flights:
United Airlines UA664
07:00
Las Vegas Harry Reid (LAS) 3

17:34
Kansas City (MCI)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:34, 1-stop
Airbus A321neo (32Q)
Non-Direct Flights:
United Airlines UA664
07:00
Las Vegas Harry Reid (LAS) 3

17:21
Kansas City (MCI)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:21, 1-stop
Boeing 737-900 (739)
Non-Direct Flights:
United Airlines UA664
07:05
Las Vegas Harry Reid (LAS) 3

20:29
West Palm Beach (PBI)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:24, 1-stop
Airbus A321neo (32Q)
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Parallax here -
This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Kansas City (MCI)
  • Chicago O'Hare (ORD) - Sarasota/Bradenton (SRQ)
  • Chicago O'Hare (ORD) - West Palm Beach (PBI)
  • Cincinnati (CVG) - Chicago O'Hare (ORD)
  • Las Vegas Harry Reid (LAS) - Chicago O'Hare (ORD)
  • Las Vegas Harry Reid (LAS) - Kansas City (MCI)
  • Las Vegas Harry Reid (LAS) - Sarasota/Bradenton (SRQ)
  • Las Vegas Harry Reid (LAS) - West Palm Beach (PBI)
All United Airlines flights
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