United Airlines flight UA 623: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sat 07:48 Santa Barbara (SBA) 09:00 San Francisco (SFO) 3
UA 623 Non-stop Boeing 737-800 (738) 1:12 Effective 2026-02-14 through 2026-02-28
Daily 09:00 New York LaGuardia (LGA) B 10:29 Chicago O'Hare (ORD) 1
UA 623 Non-stop Boeing 737-800 (738) 2:29 Effective from 2026-03-29
Mon-Fri,Sun 09:10 New York LaGuardia (LGA) B 10:55 Chicago O'Hare (ORD) 1
UA 623 Non-stop Boeing 737-800 (738) 2:45 Effective 2026-02-12 through 2026-03-27
Daily 09:15 New York LaGuardia (LGA) B 11:03 Chicago O'Hare (ORD) 1
UA 623 Non-stop Boeing 737-800 (738) 2:48 Effective 2026-01-04 through 2026-02-11
Daily 12:45 Chicago O'Hare (ORD) 1 14:11 Nashville (BNA)
UA 623 Non-stop Airbus A319 (319) 1:26 Effective from 2026-05-21
Mon-Sat 12:50 Chicago O'Hare (ORD) 1 16:52 Fort Myers (RSW)
UA 623 Non-stop Boeing 737-900 (739) 3:02 Effective 2026-03-05 through 2026-03-28
Sun 12:50 Chicago O'Hare (ORD) 1 16:52 Fort Myers (RSW)
UA 623 Non-stop Boeing 737-800 (738) 3:02 Effective 2026-03-08 through 2026-03-22
Daily 13:15 Chicago O'Hare (ORD) 1 15:53 Seattle-Tacoma (SEA)
UA 623 Non-stop Boeing 737 MAX 9 (7M9) 4:38 Effective 2026-04-30 through 2026-05-20
Daily 13:47 Chicago O'Hare (ORD) 1 16:25 Seattle-Tacoma (SEA)
UA 623 Non-stop Boeing 737 MAX 8 (7M8) 4:38 Effective 2026-03-29 through 2026-04-29
Mon,Wed-Sun 15:22 Salt Lake City (SLC) 19:23 Houston George Bush (IAH) C
UA 623 Non-stop Boeing 737-800 (738) 3:01 Valid until 2026-01-03
Sun 17:45 Fort Myers (RSW) 20:41 Los Angeles (LAX) 7
UA 623 Non-stop Boeing 737 MAX 9 (7M9) 5:56 Effective 2026-03-08 through 2026-03-22
Wed 17:45 Fort Myers (RSW) 20:41 Los Angeles (LAX) 7
UA 623 Non-stop Boeing 737 MAX 8 (7M8) 5:56 Effective 2026-03-11 through 2026-03-25
Non-Direct Flights:
Daily 09:00 New York LaGuardia (LGA) B 16:25 Seattle-Tacoma (SEA)
UA 623 1-stop Boeing 737-800 (738) 10:25 Effective 2026-03-29 through 2026-04-29
Daily 09:00 New York LaGuardia (LGA) B 15:53 Seattle-Tacoma (SEA)
UA 623 1-stop Boeing 737-800 (738) 9:53 Effective 2026-04-30 through 2026-05-20
Daily 09:00 New York LaGuardia (LGA) B 14:11 Nashville (BNA)
UA 623 1-stop Boeing 737-800 (738) 6:11 Effective from 2026-05-21
Mon-Fri,Sun 09:10 New York LaGuardia (LGA) B 16:52 Fort Myers (RSW)
UA 623 1-stop Boeing 737-800 (738) 7:42 Effective 2026-03-05 through 2026-03-27
Sun 12:50 Chicago O'Hare (ORD) 1 20:41 Los Angeles (LAX) 7
UA 623 1-stop Boeing 737-800 (738) 9:51 Effective 2026-03-08 through 2026-03-22
Wed 12:50 Chicago O'Hare (ORD) 1 20:41 Los Angeles (LAX) 7
UA 623 1-stop Boeing 737-900 (739) 9:51 Effective 2026-03-11 through 2026-03-25
Wed,Sun 09:10 New York LaGuardia (LGA) B 20:41 Los Angeles (LAX) 7
UA 623 2-stop Boeing 737-800 (738) 14:31 Effective 2026-03-08 through 2026-03-25
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This flight number is listed as serving the following routes:


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United Airlines flight UA 623: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA623
07:48
Santa Barbara (SBA)

09:00
San Francisco (SFO) 3
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:12, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA623
09:00
New York LaGuardia (LGA) B

10:29
Chicago O'Hare (ORD) 1
Effective from 2026-03-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:29, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA623
09:10
New York LaGuardia (LGA) B

10:55
Chicago O'Hare (ORD) 1
Effective 2026-02-12 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:45, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA623
09:15
New York LaGuardia (LGA) B

11:03
Chicago O'Hare (ORD) 1
Effective 2026-01-04 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:48, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA623
12:45
Chicago O'Hare (ORD) 1

14:11
Nashville (BNA)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:26, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA623
12:50
Chicago O'Hare (ORD) 1

16:52
Fort Myers (RSW)
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 3:02, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA623
12:50
Chicago O'Hare (ORD) 1

16:52
Fort Myers (RSW)
Effective 2026-03-08 through 2026-03-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:02, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA623
13:15
Chicago O'Hare (ORD) 1

15:53
Seattle-Tacoma (SEA)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:38, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA623
13:47
Chicago O'Hare (ORD) 1

16:25
Seattle-Tacoma (SEA)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:38, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA623
15:22
Salt Lake City (SLC)

19:23
Houston George Bush (IAH) C
Valid until 2026-01-03
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Duration: 3:01, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA623
17:45
Fort Myers (RSW)

20:41
Los Angeles (LAX) 7
Effective 2026-03-08 through 2026-03-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:56, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA623
17:45
Fort Myers (RSW)

20:41
Los Angeles (LAX) 7
Effective 2026-03-11 through 2026-03-25
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:56, non-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
United Airlines UA623
09:00
New York LaGuardia (LGA) B

16:25
Seattle-Tacoma (SEA)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:25, 1-stop
Boeing 737-800 (738)
Non-Direct Flights:
United Airlines UA623
09:00
New York LaGuardia (LGA) B

15:53
Seattle-Tacoma (SEA)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 9:53, 1-stop
Boeing 737-800 (738)
Non-Direct Flights:
United Airlines UA623
09:00
New York LaGuardia (LGA) B

14:11
Nashville (BNA)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:11, 1-stop
Boeing 737-800 (738)
Non-Direct Flights:
United Airlines UA623
09:10
New York LaGuardia (LGA) B

16:52
Fort Myers (RSW)
Effective 2026-03-05 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 7:42, 1-stop
Boeing 737-800 (738)
Non-Direct Flights:
United Airlines UA623
12:50
Chicago O'Hare (ORD) 1

20:41
Los Angeles (LAX) 7
Effective 2026-03-08 through 2026-03-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 9:51, 1-stop
Boeing 737-800 (738)
Non-Direct Flights:
United Airlines UA623
12:50
Chicago O'Hare (ORD) 1

20:41
Los Angeles (LAX) 7
Effective 2026-03-11 through 2026-03-25
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 9:51, 1-stop
Boeing 737-900 (739)
Non-Direct Flights:
United Airlines UA623
09:10
New York LaGuardia (LGA) B

20:41
Los Angeles (LAX) 7
Effective 2026-03-08 through 2026-03-25
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 14:31, 2-stop
Boeing 737-800 (738)
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Fort Myers (RSW)
  • Chicago O'Hare (ORD) - Los Angeles (LAX)
  • Chicago O'Hare (ORD) - Nashville (BNA)
  • Chicago O'Hare (ORD) - Seattle-Tacoma (SEA)
  • Fort Myers (RSW) - Los Angeles (LAX)
  • New York LaGuardia (LGA) - Chicago O'Hare (ORD)
  • New York LaGuardia (LGA) - Fort Myers (RSW)
  • New York LaGuardia (LGA) - Los Angeles (LAX)
  • New York LaGuardia (LGA) - Nashville (BNA)
  • New York LaGuardia (LGA) - Seattle-Tacoma (SEA)
  • Salt Lake City (SLC) - Houston George Bush (IAH)
  • Santa Barbara (SBA) - San Francisco (SFO)
All United Airlines flights
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