United Airlines flight UA 6664: Dallas Fort Worth - San Salvador

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Select flight date:  Show Calendar
FLIGHT SCHEDULE
Direct Codeshare Flights:
Tue,Fri-Sun 12:55 Dallas Fort Worth (DFW) D 16:20 San Salvador (SAL)
UA 6664 Non-stop Airbus A320neo (32N) 3:25 Effective from 2025-11-02
Codeshare flight, operated by Avianca.(AV 441)
Mon,Wed,Thu 12:55 Dallas Fort Worth (DFW) D 16:20 San Salvador (SAL)
UA 6664 Non-stop Airbus A320 (320) 3:25 Effective from 2025-11-03
Codeshare flight, operated by Avianca.(AV 441)
Daily 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320 (320) 3:20 Valid until 2025-05-07
Codeshare flight, operated by Avianca.(AV 441)
Thu 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320neo (32N) 3:20 Operates only on 2025-05-08
Codeshare flight, operated by Avianca.(AV 441)
Daily 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320 (320) 3:20 Effective 2025-05-09 through 2025-05-19
Codeshare flight, operated by Avianca.(AV 441)
Tue 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320neo (32N) 3:20 Operates only on 2025-05-20
Codeshare flight, operated by Avianca.(AV 441)
Daily 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320 (320) 3:20 Effective 2025-05-21 through 2025-06-12
Codeshare flight, operated by Avianca.(AV 441)
Tue,Fri 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320neo (32N) 3:20 Effective 2025-06-13 through 2025-06-17
Codeshare flight, operated by Avianca.(AV 441)
Mon,Wed-Sun 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320 (320) 3:20 Effective 2025-06-14 through 2025-06-23
Codeshare flight, operated by Avianca.(AV 441)
Daily 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320 (320) 3:20 Effective 2025-06-24 through 2025-07-10
Codeshare flight, operated by Avianca.(AV 441)
Tue,Fri-Sun 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320neo (32N) 3:20 Effective 2025-07-11 through 2025-07-15
Codeshare flight, operated by Avianca.(AV 441)
Mon,Wed-Sun 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320 (320) 3:20 Effective 2025-07-14 through 2025-07-21
Codeshare flight, operated by Avianca.(AV 441)
Daily 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320 (320) 3:20 Effective 2025-07-22 through 2025-07-30
Codeshare flight, operated by Avianca.(AV 441)
Thu 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320neo (32N) 3:20 Operates only on 2025-07-31
Codeshare flight, operated by Avianca.(AV 441)
Daily 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320 (320) 3:20 Effective 2025-08-01 through 2025-08-08
Codeshare flight, operated by Avianca.(AV 441)
Fri-Sun 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320neo (32N) 3:20 Effective 2025-08-09 through 2025-08-15
Codeshare flight, operated by Avianca.(AV 441)
Mon-Thu,Sat,Sun 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320 (320) 3:20 Effective 2025-08-11 through 2025-08-21
Codeshare flight, operated by Avianca.(AV 441)
Mon-Wed,Fri-Sun 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320 (320) 3:20 Effective 2025-08-22 through 2025-08-31
Codeshare flight, operated by Avianca.(AV 441)
Mon,Thu 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320neo (32N) 3:20 Effective 2025-08-28 through 2025-09-01
Codeshare flight, operated by Avianca.(AV 441)
Mon-Thu,Sat,Sun 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320 (320) 3:20 Effective 2025-09-02 through 2025-09-10
Codeshare flight, operated by Avianca.(AV 441)
Thu,Fri 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320neo (32N) 3:20 Effective 2025-09-05 through 2025-09-12
Codeshare flight, operated by Avianca.(AV 441)
Mon,Tue,Thu,Sat,Sun 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320 (320) 3:20 Effective 2025-09-13 through 2025-09-18
Codeshare flight, operated by Avianca.(AV 441)
Mon,Wed,Fri-Sun 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320neo (32N) 3:20 Effective 2025-09-17 through 2025-09-22
Codeshare flight, operated by Avianca.(AV 441)
Mon-Thu,Sat,Sun 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320 (320) 3:20 Effective 2025-09-23 through 2025-09-30
Codeshare flight, operated by Avianca.(AV 441)
Wed-Fri 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320neo (32N) 3:20 Effective 2025-09-26 through 2025-10-03
Codeshare flight, operated by Avianca.(AV 441)
Mon,Wed-Sun 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320neo (32N) 3:20 Effective 2025-10-04 through 2025-10-25
Codeshare flight, operated by Avianca.(AV 441)
Tue 13:50 Dallas Fort Worth (DFW) D 16:10 San Salvador (SAL)
UA 6664 Non-stop Airbus A320 (320) 3:20 Effective 2025-10-07 through 2025-10-21
Codeshare flight, operated by Avianca.(AV 441)
Tue,Fri-Sun 13:55 Dallas Fort Worth (DFW) D 16:20 San Salvador (SAL)
UA 6664 Non-stop Airbus A320neo (32N) 3:25 Effective 2025-10-26 through 2025-11-01
Codeshare flight, operated by Avianca.(AV 441)
Mon,Wed,Thu 13:55 Dallas Fort Worth (DFW) D 16:20 San Salvador (SAL)
UA 6664 Non-stop Airbus A320 (320) 3:25 Effective 2025-10-27 through 2025-10-30
Codeshare flight, operated by Avianca.(AV 441)
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United Airlines flight UA 6664:
Dallas Fort Worth - San Salvador
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Select flight date:  Show Calendar
FLIGHT SCHEDULE
Direct Codeshare Flights:
United Airlines UA6664
12:55
Dallas Fort Worth (DFW) D

16:20
San Salvador (SAL)
Effective from 2025-11-02
Mon
-
Tue
Wed
-
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:25, non-stop
Airbus A320neo (32N)
United Airlines UA6664
12:55
Dallas Fort Worth (DFW) D

16:20
San Salvador (SAL)
Effective from 2025-11-03
Mon
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:25, non-stop
Airbus A320 (320)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Valid until 2025-05-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320 (320)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Operates only on 2025-05-08
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320neo (32N)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-05-09 through 2025-05-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320 (320)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Operates only on 2025-05-20
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320neo (32N)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-05-21 through 2025-06-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320 (320)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-06-13 through 2025-06-17
Mon
-
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320neo (32N)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-06-14 through 2025-06-23
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320 (320)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-06-24 through 2025-07-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320 (320)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-07-11 through 2025-07-15
Mon
-
Tue
Wed
-
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320neo (32N)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-07-14 through 2025-07-21
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320 (320)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-07-22 through 2025-07-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320 (320)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Operates only on 2025-07-31
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320neo (32N)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-08-01 through 2025-08-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320 (320)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-08-09 through 2025-08-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320neo (32N)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-08-11 through 2025-08-21
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320 (320)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-08-22 through 2025-08-31
Mon
Tue
Wed
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320 (320)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-08-28 through 2025-09-01
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320neo (32N)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-09-02 through 2025-09-10
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320 (320)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-09-05 through 2025-09-12
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320neo (32N)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-09-13 through 2025-09-18
Mon
Tue
Wed
-
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320 (320)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-09-17 through 2025-09-22
Mon
Tue
-
Wed
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320neo (32N)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-09-23 through 2025-09-30
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320 (320)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-09-26 through 2025-10-03
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320neo (32N)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-10-04 through 2025-10-25
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320neo (32N)
United Airlines UA6664
13:50
Dallas Fort Worth (DFW) D

16:10
San Salvador (SAL)
Effective 2025-10-07 through 2025-10-21
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:20, non-stop
Airbus A320 (320)
United Airlines UA6664
13:55
Dallas Fort Worth (DFW) D

16:20
San Salvador (SAL)
Effective 2025-10-26 through 2025-11-01
Mon
-
Tue
Wed
-
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:25, non-stop
Airbus A320neo (32N)
United Airlines UA6664
13:55
Dallas Fort Worth (DFW) D

16:20
San Salvador (SAL)
Effective 2025-10-27 through 2025-10-30
Mon
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Avianca. (AV 441)
Duration: 3:25, non-stop
Airbus A320 (320)
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  • UA 6664 is an international flight departing from Dallas Fort Worth airport, United States (DFW) and arriving at San Salvador airport, El Salvador (SAL).
  • The flight distance is 1434 miles, or 2308 km.
  • The timezone of both the departure and the arrival airports is UTC-6 (plus 1h DST). Current time at both airports is 9:22pm.
  • For direct flights, the flight time varies between 3:20 and 3:25.
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