Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Islip to Jacksonville from $157

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Islip to Jacksonville departing on 10/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Islip to Jacksonville

Cheap round-trip flights

Southwest Logo
3:55 pm - 8:15 pmISP-JAX
4h 20m1 stop
Southwest Logo
7:50 am - 11:50 amJAX-ISP
4h 00m1 stop
$305Southwest
Find Deal
Wed, Nov 5 - Sat, Nov 8
Southwest Logo
5:40 am - 10:25 amISP-JAX
4h 45m1 stop
Southwest Logo
6:35 am - 3:00 pmJAX-ISP
8h 25m2 stops
$310Southwest
Find Deal
Wed, Nov 5 - Sat, Nov 8
Southwest Logo
5:40 am - 10:25 amISP-JAX
4h 45m1 stop
Southwest Logo
7:55 am - 12:50 pmJAX-ISP
4h 55m1 stop
$313Southwest
Find Deal
Mon, Nov 3 - Mon, Nov 10
Southwest Logo
6:15 am - 3:20 pmISP-JAX
9h 05m2 stops
Southwest Logo
12:00 pm - 9:45 pmJAX-ISP
9h 45m2 stops
$323Southwest
Find Deal
Wed, Nov 5 - Sat, Nov 8
Southwest Logo
11:40 am - 8:50 pmISP-JAX
9h 10m1 stop
Southwest Logo
7:10 am - 12:25 pmJAX-ISP
5h 15m1 stop
$331Southwest
Find Deal
Tue, Oct 14 - Tue, Oct 21
Southwest Logo
11:40 am - 8:50 pmISP-JAX
9h 10m1 stop
Southwest Logo
6:25 am - 12:25 pmJAX-ISP
6h 00m2 stops
$337Southwest
Find Deal
Tue, Oct 14 - Tue, Oct 21
Frontier Logo
4:58 pm - 10:51 amISP-JAX
17h 53m2 stops
Frontier Logo
6:05 pm - 10:37 amJAX-ISP
16h 32m2 stops
$364Frontier
Find Deal
Fri, Oct 10 - Sun, Oct 12
Breeze Airways Logo
8:21 pm - 5:10 pmISP-JAX
20h 49m2 stops
Breeze Airways Logo
8:28 pm - 9:58 amJAX-ISP
13h 30m1 stop
$386Breeze Airways
Find Deal
Wed, Dec 24 - Mon, Dec 29
Breeze Airways Logo
7:36 pm - 8:58 amISP-JAX
13h 22m1 stop
Breeze Airways Logo
9:38 am - 6:28 pmJAX-ISP
32h 50m2 stops
$400Breeze Airways
Find Deal
Sun, Oct 19 - Sun, Oct 26
Breeze Airways Logo
2:19 pm - 8:58 amISP-JAX
18h 39m2 stops
Breeze Airways Logo
9:38 am - 6:28 pmJAX-ISP
32h 50m2 stops
$690Breeze Airways
Find Deal
Sun, Oct 19 - Sun, Oct 26

Southwest flights from Islip to Jacksonville

Our best Southwest deals on Islip to Jacksonville flight tickets
Southwest
Nov 5
ISP3:55 pmIslip Long Island
4h 20m
1 stop
JAX8:15 pmJacksonville
Nov 8
JAX7:50 amJacksonville
4h 00m
1 stop
ISP11:50 amIslip Long Island
$305
Find similar
Southwest
Nov 5
ISP5:40 amIslip Long Island
4h 45m
1 stop
JAX10:25 amJacksonville
Nov 8
JAX6:35 amJacksonville
8h 25m
2 stops
ISP3:00 pmIslip Long Island
$310
Find similar
Southwest
Nov 3
ISP5:40 amIslip Long Island
4h 45m
1 stop
JAX10:25 amJacksonville
Nov 10
JAX7:55 amJacksonville
4h 55m
1 stop
ISP12:50 pmIslip Long Island
$313
Find similar

Breeze Airways flights from Islip to Jacksonville

Our best Breeze Airways deals on Islip to Jacksonville flight tickets
Breeze Airways
Dec 24
ISP8:21 pmIslip Long Island
20h 49m
2 stops
JAX5:10 pmJacksonville
Dec 29
JAX8:28 pmJacksonville
13h 30m
1 stop
ISP9:58 amIslip Long Island
$386
Find similar
Breeze Airways
Oct 19
ISP7:36 pmIslip Long Island
13h 22m
1 stop
JAX8:58 amJacksonville
Oct 26
JAX9:38 amJacksonville
32h 50m
2 stops
ISP6:28 pmIslip Long Island
$400
Find similar
Breeze Airways
Sep 18
ISP2:19 pmIslip Long Island
23h 35m
1 stop
JAX1:54 pmJacksonville
Sep 21
JAX5:48 pmJacksonville
19h 57m
1 stop
ISP1:45 pmIslip Long Island
$499
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Islip to Jacksonville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Islip to Jacksonville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IslipJacksonville

ISP - JAX

ISPJAX

Islip Long Island

Wed 11/5

3:55 pm-8:15 pm

1 stop4h 20m

Jacksonville

Sat 11/8

7:50 am-11:50 am

1 stop4h 00m

$305

IslipJacksonville

ISP - JAX

ISPJAX

Islip Long Island

Wed 11/5

5:40 am-10:25 am

1 stop4h 45m

Jacksonville

Sat 11/8

6:35 am-3:00 pm

2 stops8h 25m

$310

IslipJacksonville

ISP - JAX

ISPJAX

Islip Long Island

Mon 11/3

5:40 am-10:25 am

1 stop4h 45m

Jacksonville

Mon 11/10

7:55 am-12:50 pm

1 stop4h 55m

$313

IslipJacksonville

ISP - JAX

ISPJAX

Islip Long Island

Wed 11/5

6:15 am-3:20 pm

2 stops9h 05m

Jacksonville

Sat 11/8

12:00 pm-9:45 pm

2 stops9h 45m

$323

IslipJacksonville

ISP - JAX

ISPJAX

Islip Long Island

Tue 10/14

11:40 am-8:50 pm

1 stop9h 10m

Jacksonville

Tue 10/21

7:10 am-12:25 pm

1 stop5h 15m

$331

IslipJacksonville

ISP - JAX

ISPJAX

Islip Long Island

Tue 10/14

11:40 am-8:50 pm

1 stop9h 10m

Jacksonville

Tue 10/21

6:25 am-12:25 pm

2 stops6h 00m

$337

IslipJacksonville

ISP - JAX

ISPJAX

Islip Long Island

Fri 10/10

4:58 pm-10:51 am

2 stops17h 53m

Jacksonville

Sun 10/12

6:05 pm-10:37 am

2 stops16h 32m

$364

IslipJacksonville

ISP - JAX

ISPJAX

Islip Long Island

Wed 12/24

8:21 pm-5:10 pm

2 stops20h 49m

Jacksonville

Mon 12/29

8:28 pm-9:58 am

1 stop13h 30m

$386

IslipJacksonville

ISP - JAX

ISPJAX

Islip Long Island

Sun 10/19

7:36 pm-8:58 am

1 stop13h 22m

Jacksonville

Sun 10/26

9:38 am-6:28 pm

2 stops32h 50m

$400

IslipJacksonville

ISP - JAX

ISPJAX

Islip Long Island

Sun 10/19

2:19 pm-8:58 am

2 stops18h 39m

Jacksonville

Sun 10/26

9:38 am-6:28 pm

2 stops32h 50m

$690

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Jacksonville from

How to get the cheapest flight ticket from Islip to Jacksonville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Jacksonville?

If you are unable to visit Jacksonville during the month of July, then departing from Islip during the month August is also very affordable. Most momondo users find prices during this month for around $318.

What is the cheapest day to depart on your flight to Jacksonville?

According to our data, Tuesday is the cheapest day to fly to Jacksonville from Islip. The lowest ticket price found for a Tuesday departure recently was $262. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Sunday is the most expensive day to depart from Islip because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $357.

What is the cheapest time of day to depart on your flight to Jacksonville?

Flying to Jacksonville from Islip at noon is the least expensive time of day to depart. momondo users have found prices as low as $281 when looking at flights departing at noon. Flights to Jacksonville are more costly in the evening, with an average ticket price of $336. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Islip to Jacksonville

Are you open to changing your travel dates? Check out the ideal times to fly from Islip to Jacksonville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Islip to Jacksonville (ISP to JAX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip to Jacksonville

Direct flights

None
There are no direct flights from Islip to Jacksonville. There are no popular flight routes from Islip to Jacksonville.
Search flight deals

  • How far is Islip Long Island to Jacksonville by plane?

    The straight-line distance from Islip Long Island to Jacksonville is 859.6 mi. Typically, this will take 4h 15m by plane in normal conditions.

  • When did momondo last update prices for flights from Islip Long Island Airport to Jacksonville Airport?

    Prices for flights from Islip Long Island Airport to Jacksonville Airport refresh daily.

  • How many operators does momondo search for flights from Islip Long Island Airport to Jacksonville Airport?

  • How old do you have to be to fly from Islip Long Island Airport to Jacksonville Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Islip Long Island Airport to Jacksonville Airport.

  • What documentation or ID do you need to fly to Jacksonville Airport?

    The travel and health documents you'll need for your trip to Jacksonville Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Jacksonville Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Islip to Jacksonville?

Best airlines flying from Islip to Jacksonville

Compare and see reviews for airlines that fly from Islip to Jacksonville with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $302Free CancellationRating
8.0
4,242 reviews
Search Southwest flights

Traveling to a place near Jacksonville?

Book flights to Jacksonville if you plan to visit one of these locations
Fernandina Beach
Jacksonville Beach
Orange Park
Ponte Vedra Beach
Kingsland
Waycross
Atlantic Beach
Neptune Beach
St Johns
Yulee
Cumberland Island

Why use momondo?

Why should I use momondo to find a flight deal from Islip to Jacksonville?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Jacksonville from Islip.

Can I find flights from Islip to Jacksonville with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Jacksonville from Islip with this policy.

How can momondo help me find flights from Islip to Jacksonville?

momondo helps you find the best flight between Islip and Jacksonville by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Islip to Jacksonville right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Islip to Jacksonville flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Jacksonville trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 10/15
Wed 10/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States