Korean Air flight KE 3700: Atlanta - Ronald Reagan Washington

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Sat 11:00 Atlanta (ATL) S 12:47 Ronald Reagan Washington (DCA) 2
KE 3700 Non-stop Airbus A321 (321) 1:47 Effective 2026-09-05 through 2026-10-03
Codeshare flight, operated by Delta Air Lines.(DL 737)
Sat 11:00 Atlanta (ATL) S 12:44 Ronald Reagan Washington (DCA) 2
KE 3700 Non-stop Airbus A321 (321) 1:44 Effective 2026-10-10 through 2026-10-24
Codeshare flight, operated by Delta Air Lines.(DL 737)
Sat 16:30 Atlanta (ATL) S 18:20 Ronald Reagan Washington (DCA) 2
KE 3700 Non-stop Airbus A320 (320) 1:50 Effective 2026-04-18 through 2026-08-08
Codeshare flight, operated by Delta Air Lines.(DL 950)
Sat 16:30 Atlanta (ATL) S 18:23 Ronald Reagan Washington (DCA) 2
KE 3700 Non-stop Airbus A320 (320) 1:53 Effective 2026-08-15 through 2026-08-29
Codeshare flight, operated by Delta Air Lines.(DL 950)
Mon-Fri,Sun 18:30 Atlanta (ATL) S 20:19 Ronald Reagan Washington (DCA) 2
KE 3700 Non-stop Airbus A321 (321) 1:49 Effective 2026-04-13 through 2026-04-30
Codeshare flight, operated by Delta Air Lines.(DL 325)
Mon,Thu,Fri,Sun 18:30 Atlanta (ATL) S 20:19 Ronald Reagan Washington (DCA) 2
KE 3700 Non-stop Airbus A321 (321) 1:49 Effective 2026-10-01 through 2026-10-05
Codeshare flight, operated by Delta Air Lines.(DL 325)
Mon-Fri,Sun 18:30 Atlanta (ATL) S 20:13 Ronald Reagan Washington (DCA) 2
KE 3700 Non-stop Airbus A321 (321) 1:43 Effective 2026-10-06 through 2026-10-23
Codeshare flight, operated by Delta Air Lines.(DL 703)
Daily 18:59 Atlanta (ATL) S 20:40 Ronald Reagan Washington (DCA) 2
KE 3700 Non-stop Airbus A320 (320) 1:41 Effective 2026-03-29 through 2026-04-12
Codeshare flight, operated by Delta Air Lines.(DL 325)
Mon,Wed-Fri,Sun 20:32 Atlanta (ATL) S 22:20 Ronald Reagan Washington (DCA) 2
KE 3700 Non-stop Airbus A320 (320) 1:48 Effective 2026-05-01 through 2026-06-08
Codeshare flight, operated by Delta Air Lines.(DL 378)
Mon,Thu,Fri,Sun 20:32 Atlanta (ATL) S 22:20 Ronald Reagan Washington (DCA) 2
KE 3700 Non-stop Airbus A320 (320) 1:48 Effective 2026-06-11 through 2026-08-09
Codeshare flight, operated by Delta Air Lines.(DL 378)
Mon-Fri,Sun 20:32 Atlanta (ATL) S 22:21 Ronald Reagan Washington (DCA) 2
KE 3700 Non-stop Airbus A320 (320) 1:49 Effective 2026-08-10 through 2026-09-30
Codeshare flight, operated by Delta Air Lines.(DL 378)
Mon-Fri,Sun 20:32 Atlanta (ATL) S 22:15 Ronald Reagan Washington (DCA) 2
KE 3700 Non-stop Airbus A320 (320) 1:43 Effective from 2026-10-25
Codeshare flight, operated by Delta Air Lines.(DL 378)
Sat,Sun 20:55 Atlanta (ATL) S 22:36 Ronald Reagan Washington (DCA) 2
KE 3700 Non-stop Airbus A320 (320) 1:41 Effective 2026-01-03 through 2026-01-04
Codeshare flight, operated by Delta Air Lines.(DL 378)
Mon,Wed-Fri,Sun 20:55 Atlanta (ATL) S 22:33 Ronald Reagan Washington (DCA) 2
KE 3700 Non-stop Airbus A320 (320) 1:38 Effective 2026-01-05 through 2026-01-18
Codeshare flight, operated by Delta Air Lines.(DL 378)
Mon,Wed 20:55 Atlanta (ATL) S 22:33 Ronald Reagan Washington (DCA) 2
KE 3700 Non-stop Airbus A320 (320) 1:38 Effective 2026-01-21 through 2026-01-28
Codeshare flight, operated by Delta Air Lines.(DL 378)
Mon,Wed-Fri,Sun 20:55 Atlanta (ATL) S 22:33 Ronald Reagan Washington (DCA) 2
KE 3700 Non-stop Airbus A320 (320) 1:38 Effective 2026-01-29 through 2026-03-06
Codeshare flight, operated by Delta Air Lines.(DL 378)
Mon,Thu,Fri,Sun 20:59 Atlanta (ATL) S 22:37 Ronald Reagan Washington (DCA) 2
KE 3700 Non-stop Airbus A320 (320) 1:38 Effective 2026-01-19 through 2026-01-25
Codeshare flight, operated by Delta Air Lines.(DL 378)
Mon,Wed-Fri,Sun 20:59 Atlanta (ATL) S 22:42 Ronald Reagan Washington (DCA) 2
KE 3700 Non-stop Airbus A320 (320) 1:43 Effective 2026-03-08 through 2026-03-27
Codeshare flight, operated by Delta Air Lines.(DL 378)


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Korean Air flight KE 3700:
Atlanta - Ronald Reagan Washington
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Korean Air KE3700
11:00
Atlanta (ATL) S

12:47
Ronald Reagan Washington (DCA) 2
Effective 2026-09-05 through 2026-10-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 737)
Duration: 1:47, non-stop
Airbus A321 (321)
Direct Codeshare Flights:
Korean Air KE3700
11:00
Atlanta (ATL) S

12:44
Ronald Reagan Washington (DCA) 2
Effective 2026-10-10 through 2026-10-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 737)
Duration: 1:44, non-stop
Airbus A321 (321)
Direct Codeshare Flights:
Korean Air KE3700
16:30
Atlanta (ATL) S

18:20
Ronald Reagan Washington (DCA) 2
Effective 2026-04-18 through 2026-08-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 950)
Duration: 1:50, non-stop
Airbus A320 (320)
Direct Codeshare Flights:
Korean Air KE3700
16:30
Atlanta (ATL) S

18:23
Ronald Reagan Washington (DCA) 2
Effective 2026-08-15 through 2026-08-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 950)
Duration: 1:53, non-stop
Airbus A320 (320)
Direct Codeshare Flights:
Korean Air KE3700
18:30
Atlanta (ATL) S

20:19
Ronald Reagan Washington (DCA) 2
Effective 2026-04-13 through 2026-04-30
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 325)
Duration: 1:49, non-stop
Airbus A321 (321)
Direct Codeshare Flights:
Korean Air KE3700
18:30
Atlanta (ATL) S

20:19
Ronald Reagan Washington (DCA) 2
Effective 2026-10-01 through 2026-10-05
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 325)
Duration: 1:49, non-stop
Airbus A321 (321)
Direct Codeshare Flights:
Korean Air KE3700
18:30
Atlanta (ATL) S

20:13
Ronald Reagan Washington (DCA) 2
Effective 2026-10-06 through 2026-10-23
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 703)
Duration: 1:43, non-stop
Airbus A321 (321)
Direct Codeshare Flights:
Korean Air KE3700
18:59
Atlanta (ATL) S

20:40
Ronald Reagan Washington (DCA) 2
Effective 2026-03-29 through 2026-04-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 325)
Duration: 1:41, non-stop
Airbus A320 (320)
Direct Codeshare Flights:
Korean Air KE3700
20:32
Atlanta (ATL) S

22:20
Ronald Reagan Washington (DCA) 2
Effective 2026-05-01 through 2026-06-08
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 378)
Duration: 1:48, non-stop
Airbus A320 (320)
Direct Codeshare Flights:
Korean Air KE3700
20:32
Atlanta (ATL) S

22:20
Ronald Reagan Washington (DCA) 2
Effective 2026-06-11 through 2026-08-09
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 378)
Duration: 1:48, non-stop
Airbus A320 (320)
Direct Codeshare Flights:
Korean Air KE3700
20:32
Atlanta (ATL) S

22:21
Ronald Reagan Washington (DCA) 2
Effective 2026-08-10 through 2026-09-30
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 378)
Duration: 1:49, non-stop
Airbus A320 (320)
Direct Codeshare Flights:
Korean Air KE3700
20:32
Atlanta (ATL) S

22:15
Ronald Reagan Washington (DCA) 2
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 378)
Duration: 1:43, non-stop
Airbus A320 (320)
Direct Codeshare Flights:
Korean Air KE3700
20:55
Atlanta (ATL) S

22:36
Ronald Reagan Washington (DCA) 2
Effective 2026-01-03 through 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 378)
Duration: 1:41, non-stop
Airbus A320 (320)
Direct Codeshare Flights:
Korean Air KE3700
20:55
Atlanta (ATL) S

22:33
Ronald Reagan Washington (DCA) 2
Effective 2026-01-05 through 2026-01-18
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 378)
Duration: 1:38, non-stop
Airbus A320 (320)
Direct Codeshare Flights:
Korean Air KE3700
20:55
Atlanta (ATL) S

22:33
Ronald Reagan Washington (DCA) 2
Effective 2026-01-21 through 2026-01-28
Mon
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 378)
Duration: 1:38, non-stop
Airbus A320 (320)
Direct Codeshare Flights:
Korean Air KE3700
20:55
Atlanta (ATL) S

22:33
Ronald Reagan Washington (DCA) 2
Effective 2026-01-29 through 2026-03-06
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 378)
Duration: 1:38, non-stop
Airbus A320 (320)
Direct Codeshare Flights:
Korean Air KE3700
20:59
Atlanta (ATL) S

22:37
Ronald Reagan Washington (DCA) 2
Effective 2026-01-19 through 2026-01-25
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 378)
Duration: 1:38, non-stop
Airbus A320 (320)
Direct Codeshare Flights:
Korean Air KE3700
20:59
Atlanta (ATL) S

22:42
Ronald Reagan Washington (DCA) 2
Effective 2026-03-08 through 2026-03-27
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 378)
Duration: 1:43, non-stop
Airbus A320 (320)
  • KE 3700 is a domestic flight departing from the Atlanta airport (ATL) and arriving at Ronald Reagan Washington airport (DCA).
  • The flight distance is 546 miles, or 880 km.
  • The timezone of both the departure and the arrival airports is UTC-5 . Current time at both airports is (loading...).
  • For direct flights, the flight time varies between 1:38 and 1:53.
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