
Discover tips and strategies to find the most affordable flight options for your journey from LaGuardia (LGA) to Islip (ISP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 2, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $718 (Expedia) |
One-way from | $309 (Kiwi.com) |
Fly from
Fly to
Route
Depart
Return
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Mon 3/29
6:30 am-1:09 pm
2 stops30h 39m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Mon 3/29
8:59 pm-8:55 am
1 stop11h 56m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Sat 12/26
8:55 pm-10:33 am
3 stops37h 38m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Sat 12/26
8:30 pm-10:31 am
2 stops38h 01m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Thu 12/17
12:00 pm-9:50 pm
1 stop9h 50m
Islip Long Island
Mon 12/21
10:42 am-9:59 pm
1 stop11h 17m
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Thu 12/17
5:30 pm-10:31 am
2 stops17h 01m
Islip Long Island
Mon 12/21
11:26 am-11:15 pm
1 stop11h 49m
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Mon 11/16
7:40 am-9:37 pm
1 stop13h 57m
Islip Long Island
Thu 11/19
9:40 am-9:33 pm
1 stop11h 53m
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Mon 11/30
8:55 pm-9:47 am
1 stop12h 52m
Islip Long Island
Mon 12/7
6:00 am-7:32 pm
1 stop13h 32m
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Thu 12/17
6:00 am-5:42 pm
1 stop11h 42m
Islip Long Island
Sun 12/20
10:42 am-11:59 pm
2 stops13h 17m
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