Find cheap flights to Islip from $95

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1 stop

Wed, Sep 17

Columbus LCKIslip ISP

$95

1 stop

Tue, Sep 16

Columbus CMHIslip ISP

$112

1 stop

Wed, Sep 17

Columbus CMHIslip ISP

$127

1 stop

Wed, Sep 17

Columbus CMHIslip ISP

$127

1 stop

Mon, Sep 15

Columbus CMHIslip ISP

$153

1 stop

Fri, Sep 19

Columbus CMHIslip ISP

$165

Prices updated: 08/28/2025

1 stop

Fri, Sep 19 – Wed, Sep 24

Columbus CMHIslip ISP

$219

1 stop

Fri, Sep 19 – Wed, Sep 24

Columbus CMHIslip ISP

$219

1 stop

Fri, Sep 19 – Wed, Sep 24

Columbus CMHIslip ISP

$229

1 stop

Fri, Sep 19 – Wed, Sep 24

Columbus CMHIslip ISP

$229

1 stop

Tue, Sep 16 – Fri, Sep 19

Columbus CMHIslip ISP

$289

1 stop

Tue, Sep 16 – Fri, Sep 19

Columbus CMHIslip ISP

$289

Prices updated: 08/28/2025

Cheap flights to Islip

Weather in Islip

Average Weather

Month	Average monthly max temperature	Average monthly min temperature
January	3°C	-1°C
February	4°C	-1°C
March	7°C	2°C
April	12°C	7°C
May	17°C	12°C
June	22°C	17°C
July	26°C	21°C
August	26°C	21°C
September	22°C	18°C
October	17°C	13°C
November	11°C	6°C
December	7°C	2°C

Hottest Month

26°C

July

Coldest month

-1°C

January

Sunny days

276

days per year

Snow days

days per year

14 day forecast

Friday

29 Aug

26°C20°C

5 Sep

23°C17°C

Saturday

30 Aug

25°C15°C

6 Sep

85%

27°C20°C

Sunday

31 Aug

25°C17°C

7 Sep

23°C17°C

Monday

1 Sep

26°C19°C

8 Sep

22°C17°C

Tuesday

2 Sep

24°C17°C

9 Sep

24°C17°C

Wednesday

3 Sep

23°C18°C

10 Sep

27°C19°C

Thursday

4 Sep

75%

23°C19°C

11 Sep

30°C21°C

Cheapest month to fly to Islip

Explore price trends for trips to Islip

Showing prices in USD

Annual Avg. Price	91 USD
September 2025	45 USD
October 2025	45 USD
November 2025	45 USD
December 2025	76 USD
January 2026	107 USD
February 2026	107 USD
March 2026	107 USD
April 2026	108 USD
May 2026	108 USD
June 2026	125 USD
July 2026	125 USD