All airlines flying from Guanacaste (LIR) to Atlanta (ATL).

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon-Fri,Sun 13:25 Guanacaste (LIR) 19:29 Atlanta (ATL) I Air France AF 5724 Non-stop Boeing 737-900 (739) 4:04 Effective 2026-05-07 through 2026-06-05 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Sat 13:25 Guanacaste (LIR) 19:29 Atlanta (ATL) I Air France AF 5724 Non-stop Boeing 757 (757) 4:04 Effective 2026-05-09 through 2026-05-30 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Mon-Fri,Sun 13:25 Guanacaste (LIR) 19:31 Atlanta (ATL) I Air France AF 5724 Non-stop Boeing 737-900 (739) 4:06 Effective 2026-06-07 through 2026-07-06 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Mon-Fri,Sun 13:25 Guanacaste (LIR) 19:25 Atlanta (ATL) I Air France AF 5724 Non-stop Boeing 737-900 (739) 4:00 Effective 2026-07-07 through 2026-08-09 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Daily 13:25 Guanacaste (LIR) 19:32 Atlanta (ATL) I Air France AF 5724 Non-stop Boeing 737-900 (739) 4:07 Effective 2026-08-10 through 2026-09-09 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Daily 13:25 Guanacaste (LIR) 19:15 Atlanta (ATL) I Air France AF 5724 Non-stop Boeing 737-900 (739) 3:50 Effective from 2026-09-10 Codeshare flight, operated by Delta Air Lines.(DL 1812)
Tue 14:05 Guanacaste (LIR) 19:03 Atlanta (ATL) I Air France AF 5724 Non-stop Boeing 757 (757) 3:58 Effective 2026-01-27 through 2026-02-03 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Mon-Wed 14:05 Guanacaste (LIR) 19:03 Atlanta (ATL) I Air France AF 5724 Non-stop Boeing 757 (757) 3:58 Effective 2026-02-09 through 2026-02-16 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Mon,Wed 14:05 Guanacaste (LIR) 19:03 Atlanta (ATL) I Air France AF 5724 Non-stop Boeing 757 (757) 3:58 Effective 2026-02-18 through 2026-03-04 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Sat 11:50 Guanacaste (LIR) 17:51 Atlanta (ATL) I KLM KL 6508 Non-stop Boeing 757 (757) 4:01 Operates only on 2026-03-28 Codeshare flight, operated by Delta Air Lines.(DL 1798)
Daily 14:15 Guanacaste (LIR) 20:19 Atlanta (ATL) I KLM KL 6508 Non-stop Boeing 757 (757) 4:04 Effective 2026-03-08 through 2026-03-27 Codeshare flight, operated by Delta Air Lines.(DL 1784)
Daily 15:05 Guanacaste (LIR) 20:10 Atlanta (ATL) I KLM KL 6508 Non-stop Airbus A321 (321) 4:05 Valid until 2026-01-04 Codeshare flight, operated by Delta Air Lines.(DL 1784)
Daily 15:05 Guanacaste (LIR) 20:05 Atlanta (ATL) I KLM KL 6508 Non-stop Boeing 757 (757) 4:00 Effective 2026-01-05 through 2026-01-26 Codeshare flight, operated by Delta Air Lines.(DL 1784)
Mon,Wed-Sun 15:05 Guanacaste (LIR) 20:05 Atlanta (ATL) I KLM KL 6508 Non-stop Boeing 757 (757) 4:00 Effective 2026-01-28 through 2026-02-16 Codeshare flight, operated by Delta Air Lines.(DL 1784)
Daily 15:05 Guanacaste (LIR) 20:05 Atlanta (ATL) I KLM KL 6508 Non-stop Boeing 757 (757) 4:00 Effective 2026-02-17 through 2026-02-24 Codeshare flight, operated by Delta Air Lines.(DL 1784)
Daily 15:05 Guanacaste (LIR) 20:05 Atlanta (ATL) I KLM KL 6508 Non-stop Boeing 757 (757) 4:00 Effective 2026-02-26 through 2026-03-07 Codeshare flight, operated by Delta Air Lines.(DL 1784)
Sat 11:50 Guanacaste (LIR) 17:51 Atlanta (ATL) I KLM KL 6699 Non-stop Boeing 757 (757) 4:01 Effective 2026-03-14 through 2026-03-21 Codeshare flight, operated by Delta Air Lines.(DL 1798)
Sat 12:35 Guanacaste (LIR) 17:35 Atlanta (ATL) I KLM KL 6699 Non-stop Airbus A321 (321) 4:00 Operates only on 2026-01-03 Codeshare flight, operated by Delta Air Lines.(DL 1833)
Sat 12:35 Guanacaste (LIR) 17:30 Atlanta (ATL) I KLM KL 6699 Non-stop Boeing 757 (757) 3:55 Effective 2026-01-10 through 2026-03-07 Codeshare flight, operated by Delta Air Lines.(DL 1798)
Sat 14:15 Guanacaste (LIR) 20:19 Atlanta (ATL) I KLM KL 6699 Non-stop Boeing 757 (757) 4:04 Operates only on 2026-03-28 Codeshare flight, operated by Delta Air Lines.(DL 1784)
Sat 11:50 Guanacaste (LIR) 17:51 Atlanta (ATL) I KLM KL 6866 Non-stop Boeing 757 (757) 4:01 Effective 2026-04-04 through 2026-04-11 Codeshare flight, operated by Delta Air Lines.(DL 1798)
Daily 13:25 Guanacaste (LIR) 19:15 Atlanta (ATL) I KLM KL 6866 Non-stop Boeing 737-900 (739) 3:50 Effective 2026-09-10 through 2026-10-05 Codeshare flight, operated by Delta Air Lines.(DL 1812)
Mon-Fri,Sun 14:15 Guanacaste (LIR) 20:19 Atlanta (ATL) I KLM KL 6866 Non-stop Boeing 757 (757) 4:04 Effective 2026-03-29 through 2026-04-12 Codeshare flight, operated by Delta Air Lines.(DL 1784)
Sat 14:15 Guanacaste (LIR) 20:19 Atlanta (ATL) I KLM KL 6890 Non-stop Boeing 757 (757) 4:04 Effective 2026-04-04 through 2026-04-11 Codeshare flight, operated by Delta Air Lines.(DL 1784)
Sat 14:40 Guanacaste (LIR) 20:45 Atlanta (ATL) I KLM KL 6890 Non-stop Boeing 757 (757) 4:05 Effective 2026-04-18 through 2026-05-02 Codeshare flight, operated by Delta Air Lines.(DL 1784)
Sat 14:40 Guanacaste (LIR) 20:49 Atlanta (ATL) I KLM KL 6890 Non-stop Boeing 737-900 (739) 4:09 Effective 2026-06-13 through 2026-07-04 Codeshare flight, operated by Delta Air Lines.(DL 1784)
Sat 14:40 Guanacaste (LIR) 20:40 Atlanta (ATL) I KLM KL 6890 Non-stop Boeing 737-900 (739) 4:00 Effective 2026-07-11 through 2026-08-08 Codeshare flight, operated by Delta Air Lines.(DL 1784)
Sat 14:55 Guanacaste (LIR) 21:00 Atlanta (ATL) I KLM KL 6890 Non-stop Boeing 737-900 (739) 4:05 Effective 2026-05-09 through 2026-06-06 Codeshare flight, operated by Delta Air Lines.(DL 1784)
Sat 13:05 Guanacaste (LIR) 19:13 Atlanta (ATL) I KLM KL 6891 Non-stop Airbus A321 (321) 4:08 Effective 2026-06-13 through 2026-07-04 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Sat 13:05 Guanacaste (LIR) 19:07 Atlanta (ATL) I KLM KL 6891 Non-stop Airbus A321 (321) 4:02 Effective 2026-07-11 through 2026-08-08 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Daily 13:15 Guanacaste (LIR) 19:17 Atlanta (ATL) I KLM KL 6891 Non-stop Boeing 757 (757) 4:02 Effective 2026-03-29 through 2026-04-12 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Daily 13:25 Guanacaste (LIR) 19:29 Atlanta (ATL) I KLM KL 6891 Non-stop Boeing 757 (757) 4:04 Effective 2026-04-13 through 2026-05-06 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Mon-Fri,Sun 13:25 Guanacaste (LIR) 19:29 Atlanta (ATL) I KLM KL 6891 Non-stop Boeing 737-900 (739) 4:04 Effective 2026-05-07 through 2026-06-05 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Sat 13:25 Guanacaste (LIR) 19:29 Atlanta (ATL) I KLM KL 6891 Non-stop Boeing 757 (757) 4:04 Effective 2026-05-09 through 2026-06-06 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Mon-Fri,Sun 13:25 Guanacaste (LIR) 19:31 Atlanta (ATL) I KLM KL 6891 Non-stop Boeing 737-900 (739) 4:06 Effective 2026-06-07 through 2026-07-06 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Mon-Fri,Sun 13:25 Guanacaste (LIR) 19:25 Atlanta (ATL) I KLM KL 6891 Non-stop Boeing 737-900 (739) 4:00 Effective 2026-07-07 through 2026-08-09 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Daily 13:25 Guanacaste (LIR) 19:32 Atlanta (ATL) I KLM KL 6891 Non-stop Boeing 737-900 (739) 4:07 Effective 2026-08-10 through 2026-09-09 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Daily 13:25 Guanacaste (LIR) 19:15 Atlanta (ATL) I KLM KL 6891 Non-stop Boeing 737-900 (739) 3:50 Effective 2026-10-06 through 2026-10-24 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Daily 13:15 Guanacaste (LIR) 19:17 Atlanta (ATL) I KLM KL 7125 Non-stop Boeing 757 (757) 4:02 Effective 2026-03-08 through 2026-03-28 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Daily 14:05 Guanacaste (LIR) 19:06 Atlanta (ATL) I KLM KL 7125 Non-stop Airbus A321 (321) 4:01 Valid until 2026-01-18 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Mon 14:05 Guanacaste (LIR) 19:03 Atlanta (ATL) I KLM KL 7125 Non-stop Boeing 757 (757) 3:58 Effective 2026-01-19 through 2026-01-26 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Tue-Sun 14:05 Guanacaste (LIR) 19:00 Atlanta (ATL) I KLM KL 7125 Non-stop Boeing 757 (757) 3:55 Effective 2026-01-20 through 2026-01-25 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Mon,Tue,Thu-Sun 14:05 Guanacaste (LIR) 19:03 Atlanta (ATL) I KLM KL 7125 Non-stop Boeing 757 (757) 3:58 Effective 2026-01-27 through 2026-02-03 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Wed 14:05 Guanacaste (LIR) 19:00 Atlanta (ATL) I KLM KL 7125 Non-stop Boeing 757 (757) 3:55 Operates only on 2026-01-28 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Mon-Fri,Sun 14:05 Guanacaste (LIR) 19:03 Atlanta (ATL) I KLM KL 7125 Non-stop Boeing 757 (757) 3:58 Effective 2026-02-04 through 2026-02-13 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Sat 14:05 Guanacaste (LIR) 19:00 Atlanta (ATL) I KLM KL 7125 Non-stop Boeing 757 (757) 3:55 Operates only on 2026-02-07 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Daily 14:05 Guanacaste (LIR) 19:03 Atlanta (ATL) I KLM KL 7125 Non-stop Boeing 757 (757) 3:58 Effective 2026-02-14 through 2026-02-24 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Daily 14:05 Guanacaste (LIR) 19:03 Atlanta (ATL) I KLM KL 7125 Non-stop Boeing 757 (757) 3:58 Effective 2026-02-26 through 2026-03-07 Codeshare flight, operated by Delta Air Lines.(DL 1820)
Daily 13:25 Guanacaste (LIR) 19:15 Atlanta (ATL) I KLM KL 7308 Non-stop Boeing 737-900 (739) 3:50 Effective from 2026-10-25 Codeshare flight, operated by Delta Air Lines.(DL 1820)

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An international route departing from Guanacaste airport, Costa Rica (LIR) and arriving at Atlanta airport, United States (ATL).
The flight distance is 1593 miles, or 2563 km.
The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-5 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
For direct flights, the flight time varies between 3:50 and 4:09.

Return (ATL-LIR) flights

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All airlines flying from Guanacaste (LIR) to Atlanta (ATL).

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FLIGHT SCHEDULE

Direct Codeshare Flights:

Air France AF5724

13:25

Guanacaste (LIR)

19:29

Atlanta (ATL) I

Effective 2026-05-07 through 2026-06-05

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 4:04, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air France AF5724

13:25

Guanacaste (LIR)

19:29

Atlanta (ATL) I

Effective 2026-05-09 through 2026-05-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 4:04, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

Air France AF5724

13:25

Guanacaste (LIR)

19:31

Atlanta (ATL) I

Effective 2026-06-07 through 2026-07-06

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 4:06, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air France AF5724

13:25

Guanacaste (LIR)

19:25

Atlanta (ATL) I

Effective 2026-07-07 through 2026-08-09

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 4:00, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air France AF5724

13:25

Guanacaste (LIR)

19:32

Atlanta (ATL) I

Effective 2026-08-10 through 2026-09-09

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 4:07, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air France AF5724

13:25

Guanacaste (LIR)

19:15

Atlanta (ATL) I

Effective from 2026-09-10

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1812)

Duration: 3:50, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air France AF5724

14:05

Guanacaste (LIR)

19:03

Atlanta (ATL) I

Effective 2026-01-27 through 2026-02-03

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 3:58, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

Air France AF5724

14:05

Guanacaste (LIR)

19:03

Atlanta (ATL) I

Effective 2026-02-09 through 2026-02-16

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 3:58, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

Air France AF5724

14:05

Guanacaste (LIR)

19:03

Atlanta (ATL) I

Effective 2026-02-18 through 2026-03-04

Mon

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 3:58, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL6508

11:50

Guanacaste (LIR)

17:51

Atlanta (ATL) I

Operates only on 2026-03-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1798)

Duration: 4:01, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL6508

14:15

Guanacaste (LIR)

20:19

Atlanta (ATL) I

Effective 2026-03-08 through 2026-03-27

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1784)

Duration: 4:04, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL6508

15:05

Guanacaste (LIR)

20:10

Atlanta (ATL) I

Valid until 2026-01-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1784)

Duration: 4:05, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

KLM KL6508

15:05

Guanacaste (LIR)

20:05

Atlanta (ATL) I

Effective 2026-01-05 through 2026-01-26

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1784)

Duration: 4:00, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL6508

15:05

Guanacaste (LIR)

20:05

Atlanta (ATL) I

Effective 2026-01-28 through 2026-02-16

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1784)

Duration: 4:00, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL6508

15:05

Guanacaste (LIR)

20:05

Atlanta (ATL) I

Effective 2026-02-17 through 2026-02-24

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1784)

Duration: 4:00, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL6508

15:05

Guanacaste (LIR)

20:05

Atlanta (ATL) I

Effective 2026-02-26 through 2026-03-07

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1784)

Duration: 4:00, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL6699

11:50

Guanacaste (LIR)

17:51

Atlanta (ATL) I

Effective 2026-03-14 through 2026-03-21

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1798)

Duration: 4:01, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL6699

12:35

Guanacaste (LIR)

17:35

Atlanta (ATL) I

Operates only on 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1833)

Duration: 4:00, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

KLM KL6699

12:35

Guanacaste (LIR)

17:30

Atlanta (ATL) I

Effective 2026-01-10 through 2026-03-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1798)

Duration: 3:55, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL6699

14:15

Guanacaste (LIR)

20:19

Atlanta (ATL) I

Operates only on 2026-03-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1784)

Duration: 4:04, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL6866

11:50

Guanacaste (LIR)

17:51

Atlanta (ATL) I

Effective 2026-04-04 through 2026-04-11

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1798)

Duration: 4:01, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL6866

13:25

Guanacaste (LIR)

19:15

Atlanta (ATL) I

Effective 2026-09-10 through 2026-10-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1812)

Duration: 3:50, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

KLM KL6866

14:15

Guanacaste (LIR)

20:19

Atlanta (ATL) I

Effective 2026-03-29 through 2026-04-12

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1784)

Duration: 4:04, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL6890

14:15

Guanacaste (LIR)

20:19

Atlanta (ATL) I

Effective 2026-04-04 through 2026-04-11

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1784)

Duration: 4:04, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL6890

14:40

Guanacaste (LIR)

20:45

Atlanta (ATL) I

Effective 2026-04-18 through 2026-05-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1784)

Duration: 4:05, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL6890

14:40

Guanacaste (LIR)

20:49

Atlanta (ATL) I

Effective 2026-06-13 through 2026-07-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1784)

Duration: 4:09, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

KLM KL6890

14:40

Guanacaste (LIR)

20:40

Atlanta (ATL) I

Effective 2026-07-11 through 2026-08-08

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1784)

Duration: 4:00, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

KLM KL6890

14:55

Guanacaste (LIR)

21:00

Atlanta (ATL) I

Effective 2026-05-09 through 2026-06-06

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1784)

Duration: 4:05, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

KLM KL6891

13:05

Guanacaste (LIR)

19:13

Atlanta (ATL) I

Effective 2026-06-13 through 2026-07-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 4:08, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

KLM KL6891

13:05

Guanacaste (LIR)

19:07

Atlanta (ATL) I

Effective 2026-07-11 through 2026-08-08

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 4:02, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

KLM KL6891

13:15

Guanacaste (LIR)

19:17

Atlanta (ATL) I

Effective 2026-03-29 through 2026-04-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 4:02, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL6891

13:25

Guanacaste (LIR)

19:29

Atlanta (ATL) I

Effective 2026-04-13 through 2026-05-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 4:04, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL6891

13:25

Guanacaste (LIR)

19:29

Atlanta (ATL) I

Effective 2026-05-07 through 2026-06-05

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 4:04, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

KLM KL6891

13:25

Guanacaste (LIR)

19:29

Atlanta (ATL) I

Effective 2026-05-09 through 2026-06-06

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 4:04, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL6891

13:25

Guanacaste (LIR)

19:31

Atlanta (ATL) I

Effective 2026-06-07 through 2026-07-06

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 4:06, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

KLM KL6891

13:25

Guanacaste (LIR)

19:25

Atlanta (ATL) I

Effective 2026-07-07 through 2026-08-09

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 4:00, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

KLM KL6891

13:25

Guanacaste (LIR)

19:32

Atlanta (ATL) I

Effective 2026-08-10 through 2026-09-09

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 4:07, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

KLM KL6891

13:25

Guanacaste (LIR)

19:15

Atlanta (ATL) I

Effective 2026-10-06 through 2026-10-24

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 3:50, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

KLM KL7125

13:15

Guanacaste (LIR)

19:17

Atlanta (ATL) I

Effective 2026-03-08 through 2026-03-28

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 4:02, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL7125

14:05

Guanacaste (LIR)

19:06

Atlanta (ATL) I

Valid until 2026-01-18

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 4:01, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

KLM KL7125

14:05

Guanacaste (LIR)

19:03

Atlanta (ATL) I

Effective 2026-01-19 through 2026-01-26

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 3:58, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL7125

14:05

Guanacaste (LIR)

19:00

Atlanta (ATL) I

Effective 2026-01-20 through 2026-01-25

Mon
-

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 3:55, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL7125

14:05

Guanacaste (LIR)

19:03

Atlanta (ATL) I

Effective 2026-01-27 through 2026-02-03

Mon

Tue

Wed
-

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 3:58, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL7125

14:05

Guanacaste (LIR)

19:00

Atlanta (ATL) I

Operates only on 2026-01-28

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 3:55, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL7125

14:05

Guanacaste (LIR)

19:03

Atlanta (ATL) I

Effective 2026-02-04 through 2026-02-13

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 3:58, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL7125

14:05

Guanacaste (LIR)

19:00

Atlanta (ATL) I

Operates only on 2026-02-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 3:55, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL7125

14:05

Guanacaste (LIR)

19:03

Atlanta (ATL) I

Effective 2026-02-14 through 2026-02-24

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 3:58, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL7125

14:05

Guanacaste (LIR)

19:03

Atlanta (ATL) I

Effective 2026-02-26 through 2026-03-07

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 3:58, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

KLM KL7308

13:25

Guanacaste (LIR)

19:15

Atlanta (ATL) I

Effective from 2026-10-25

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 1820)

Duration: 3:50, non-stop
Boeing 737-900 (739)

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An international route departing from Guanacaste airport, Costa Rica (LIR) and arriving at Atlanta airport, United States (ATL).
The flight distance is 1593 miles, or 2563 km.
The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-5 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
For direct flights, the flight time varies between 3:50 and 4:09.

Return (ATL-LIR) flights

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