Delta Air Lines flight DL 4939: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Sat 06:00 Saint Louis (STL) 1 09:28 New York LaGuardia (LGA) C DL 4939 Non-stop Canadair CRJ 900 (CR9) 2:28 Effective 2026-08-15 through 2026-10-03
Sat 06:00 Saint Louis (STL) 1 09:27 New York LaGuardia (LGA) C DL 4939 Non-stop Canadair CRJ 900 (CR9) 2:27 Effective from 2026-10-10
Fri 06:29 New York LaGuardia (LGA) C 08:27 Saint Louis (STL) 1 DL 4939 Non-stop Canadair CRJ 900 (CR9) 2:58 Operates only on 2026-01-30
Mon-Fri 06:30 New York LaGuardia (LGA) C 08:34 Saint Louis (STL) 1 DL 4939 Non-stop Canadair CRJ 900 (CR9) 3:04 Effective 2026-01-05 through 2026-01-29
Mon-Fri 06:30 New York LaGuardia (LGA) C 08:34 Saint Louis (STL) 1 DL 4939 Non-stop Canadair CRJ 900 (CR9) 3:04 Effective 2026-02-02 through 2026-02-11
Mon-Fri 06:55 New York LaGuardia (LGA) C 08:57 Saint Louis (STL) 1 DL 4939 Non-stop Canadair CRJ 900 (CR9) 3:02 Effective 2026-02-12 through 2026-03-06
Mon-Fri,Sun 06:55 New York LaGuardia (LGA) C 08:44 Saint Louis (STL) 1 DL 4939 Non-stop Canadair CRJ 900 (CR9) 2:49 Effective 2026-03-08 through 2026-04-12
Mon-Fri,Sun 06:59 New York LaGuardia (LGA) C 08:44 Saint Louis (STL) 1 DL 4939 Non-stop Canadair CRJ 900 (CR9) 2:45 Effective 2026-04-13 through 2026-10-05
Mon-Fri,Sun 06:59 New York LaGuardia (LGA) C 08:52 Saint Louis (STL) 1 DL 4939 Non-stop Canadair CRJ 900 (CR9) 2:53 Effective from 2026-10-06
Sat 07:00 Saint Louis (STL) 1 10:28 New York LaGuardia (LGA) C DL 4939 Non-stop Canadair CRJ 900 (CR9) 2:28 Effective 2026-04-18 through 2026-08-08
Mon-Fri,Sun 09:00 Saint Louis (STL) 1 12:28 New York LaGuardia (LGA) C DL 4939 Non-stop Canadair CRJ 900 (CR9) 2:28 Effective 2026-04-13 through 2026-10-05
Mon-Fri,Sun 09:00 Saint Louis (STL) 1 12:23 New York LaGuardia (LGA) C DL 4939 Non-stop Canadair CRJ 900 (CR9) 2:23 Effective from 2026-10-06
Mon-Fri,Sun 09:45 Saint Louis (STL) 1 13:11 New York LaGuardia (LGA) C DL 4939 Non-stop Canadair CRJ 900 (CR9) 2:26 Effective 2026-01-05 through 2026-02-11
Mon-Fri,Sun 09:45 Saint Louis (STL) 1 13:09 New York LaGuardia (LGA) C DL 4939 Non-stop Canadair CRJ 900 (CR9) 2:24 Effective 2026-02-12 through 2026-03-06
Mon-Fri,Sun 09:45 Saint Louis (STL) 1 13:03 New York LaGuardia (LGA) C DL 4939 Non-stop Canadair CRJ 900 (CR9) 2:18 Effective 2026-03-08 through 2026-04-12
Mon,Tue,Fri-Sun 15:30 New York John F. Kennedy (JFK) 4 17:26 Chicago O'Hare (ORD) 5 DL 4939 Non-stop Canadair CRJ 900 (CR9) 2:56 Valid until 2026-01-04
Mon,Tue,Fri-Sun 18:15 Chicago O'Hare (ORD) 5 21:52 New York John F. Kennedy (JFK) 4 DL 4939 Non-stop Canadair CRJ 900 (CR9) 2:37 Valid until 2026-01-04

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This flight number is listed as serving the following routes:

New York John F. Kennedy (JFK) - Chicago O'Hare (ORD)
New York LaGuardia (LGA) - Saint Louis (STL)

All Delta Air Lines flights

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Delta Air Lines flight DL 4939: Multiple routes

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FLIGHT SCHEDULE

Direct Flights:

Delta Air Lines DL4939

06:00

Saint Louis (STL) 1

09:28

New York LaGuardia (LGA) C

Effective 2026-08-15 through 2026-10-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:28, non-stop
Canadair CRJ 900 (CR9)

Direct Flights:

Delta Air Lines DL4939

06:00

Saint Louis (STL) 1

09:27

New York LaGuardia (LGA) C

Effective from 2026-10-10

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:27, non-stop
Canadair CRJ 900 (CR9)

Direct Flights:

Delta Air Lines DL4939

06:29

New York LaGuardia (LGA) C

08:27

Saint Louis (STL) 1

Operates only on 2026-01-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 2:58, non-stop
Canadair CRJ 900 (CR9)

Direct Flights:

Delta Air Lines DL4939

06:30

New York LaGuardia (LGA) C

08:34

Saint Louis (STL) 1

Effective 2026-01-05 through 2026-01-29

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 3:04, non-stop
Canadair CRJ 900 (CR9)

Direct Flights:

Delta Air Lines DL4939

06:30

New York LaGuardia (LGA) C

08:34

Saint Louis (STL) 1

Effective 2026-02-02 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 3:04, non-stop
Canadair CRJ 900 (CR9)

Direct Flights:

Delta Air Lines DL4939

06:55

New York LaGuardia (LGA) C

08:57

Saint Louis (STL) 1

Effective 2026-02-12 through 2026-03-06

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 3:02, non-stop
Canadair CRJ 900 (CR9)

Direct Flights:

Delta Air Lines DL4939

06:55

New York LaGuardia (LGA) C

08:44

Saint Louis (STL) 1

Effective 2026-03-08 through 2026-04-12

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:49, non-stop
Canadair CRJ 900 (CR9)

Direct Flights:

Delta Air Lines DL4939

06:59

New York LaGuardia (LGA) C

08:44

Saint Louis (STL) 1

Effective 2026-04-13 through 2026-10-05

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:45, non-stop
Canadair CRJ 900 (CR9)

Direct Flights:

Delta Air Lines DL4939

06:59

New York LaGuardia (LGA) C

08:52

Saint Louis (STL) 1

Effective from 2026-10-06

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:53, non-stop
Canadair CRJ 900 (CR9)

Direct Flights:

Delta Air Lines DL4939

07:00

Saint Louis (STL) 1

10:28

New York LaGuardia (LGA) C

Effective 2026-04-18 through 2026-08-08

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:28, non-stop
Canadair CRJ 900 (CR9)

Direct Flights:

Delta Air Lines DL4939

09:00

Saint Louis (STL) 1

12:28

New York LaGuardia (LGA) C

Effective 2026-04-13 through 2026-10-05

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:28, non-stop
Canadair CRJ 900 (CR9)

Direct Flights:

Delta Air Lines DL4939

09:00

Saint Louis (STL) 1

12:23

New York LaGuardia (LGA) C

Effective from 2026-10-06

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:23, non-stop
Canadair CRJ 900 (CR9)

Direct Flights:

Delta Air Lines DL4939

09:45

Saint Louis (STL) 1

13:11

New York LaGuardia (LGA) C

Effective 2026-01-05 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:26, non-stop
Canadair CRJ 900 (CR9)

Direct Flights:

Delta Air Lines DL4939

09:45

Saint Louis (STL) 1

13:09

New York LaGuardia (LGA) C

Effective 2026-02-12 through 2026-03-06

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:24, non-stop
Canadair CRJ 900 (CR9)

Direct Flights:

Delta Air Lines DL4939

09:45

Saint Louis (STL) 1

13:03

New York LaGuardia (LGA) C

Effective 2026-03-08 through 2026-04-12

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:18, non-stop
Canadair CRJ 900 (CR9)

Direct Flights:

Delta Air Lines DL4939

15:30

New York John F. Kennedy (JFK) 4

17:26

Chicago O'Hare (ORD) 5

Valid until 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat

Sun

Duration: 2:56, non-stop
Canadair CRJ 900 (CR9)

Direct Flights:

Delta Air Lines DL4939

18:15

Chicago O'Hare (ORD) 5

21:52

New York John F. Kennedy (JFK) 4

Valid until 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat

Sun

Duration: 2:37, non-stop
Canadair CRJ 900 (CR9)

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This flight number is listed as serving the following routes:

New York John F. Kennedy (JFK) - Chicago O'Hare (ORD)
New York LaGuardia (LGA) - Saint Louis (STL)

All Delta Air Lines flights

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