How does KAYAK find such low prices on flights from Missouri to Islip?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Missouri to Islip. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Missouri to Islip?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Missouri is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Missouri to Islip?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Islip with an airline and back to Missouri with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Missouri to Islip?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Islip from Missouri up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$80 CHEAP FLIGHTS from Missouri to Islip

ISP

KAYAK searches hundreds of travel sites at once for deals on flights to Islip

...and more

Travelers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals

Cheap Flights from Missouri to Islip

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Missouri to Islip that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Missouri to Islip

Thu, Oct 30 - Sun, Nov 2

8:40 pm - 10:37 amSTL-ISP

12h 57m2 stops

9:27 pm - 9:40 amISP-STL

13h 13m1 stop

$202Frontier

Find Deal

Thu, Dec 4 - Mon, Dec 8

9:45 am - 3:20 pmSTL-ISP

4h 35m1 stop

3:55 pm - 10:00 pmISP-STL

7h 05m1 stop

$239Southwest

Find Deal

Thu, Dec 4 - Mon, Dec 8

1:15 pm - 10:05 pmSTL-ISP

7h 50m2 stops

3:55 pm - 10:00 pmISP-STL

7h 05m1 stop

$244Southwest

Find Deal

Fri, Dec 5 - Sun, Dec 7

6:05 am - 12:15 pmSTL-ISP

5h 10m1 stop

3:25 pm - 11:50 pmISP-STL

9h 25m1 stop

$282Southwest

Find Deal

Fri, Dec 5 - Sun, Dec 7

1:15 pm - 10:05 pmSTL-ISP

7h 50m2 stops

3:25 pm - 11:50 pmISP-STL

9h 25m1 stop

$287Southwest

Find Deal

Thu, Dec 4 - Mon, Dec 8

1:15 pm - 10:05 pmSTL-ISP

7h 50m2 stops

5:40 am - 12:35 pmISP-STL

7h 55m2 stops

$291Southwest

Find Deal

Thu, Oct 16 - Sun, Oct 19

8:38 pm - 10:37 amMCI-ISP

12h 59m2 stops

9:47 pm - 10:42 amISP-MCI

13h 55m2 stops

$302Frontier

Find Deal

Fri, Dec 5 - Sun, Dec 7

1:15 pm - 10:05 pmSTL-ISP

7h 50m2 stops

1:40 pm - 11:50 pmISP-STL

11h 10m2 stops

$324Southwest

Find Deal

Tue, Sep 30 - Sat, Oct 4

5:15 am - 10:40 amMCI-ISP

28h 25m1 stop

5:05 pm - 9:58 amISP-MCI

41h 53m2 stops

$327Multiple Airlines

Find Deal

Fri, Oct 10 - Sun, Oct 12

11:37 am - 10:37 amMCI-ISP

22h 00m2 stops

9:47 pm - 10:42 amISP-MCI

13h 55m2 stops

$342Frontier

Find Deal

Cheapest round-trip

$202

Frontier

Thu 10/30Sun 11/2

STL - ISP • 2 stops

Cheapest one-way

$80

Frontier

Thu 10/23

STL - ISP • 1 stop

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Islip!

Useful Info

Low season	January
High season	July
Cheapest flight	$80

Best time to beat the crowds with an average 12% drop in price.

Most popular time to fly with an average 7% increase in price.

Flight from St. Louis to Islip

How does KAYAK find such low prices on flights from Missouri to Islip?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Missouri to Islip.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Missouri to Islip?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Missouri is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Missouri to Islip?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Islip with an airline and back to Missouri with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Missouri to Islip?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Islip from Missouri up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Riverhead

Amagansett

Everything you need to know for your flight to Islip

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Islip

Islip (ISP)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

ISP

$80 Find Cheap Flights from Missouri to Islip

KAYAK searches hundreds of travel sites at once for deals on flights to Islip

Cheap Flights from Missouri to Islip

Recent round-trip flight deals from Missouri to Islip

Recent one-way flight deals from Missouri to Islip

Recent last minute flight deals from Missouri to Islip

Everything you should know

Good to know

FAQs for booking flights from Missouri to Islip

How does KAYAK find such low prices on flights from Missouri to Islip?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Missouri to Islip.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Missouri to Islip?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Missouri is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Missouri to Islip?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Islip with an airline and back to Missouri with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Missouri to Islip?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Islip from Missouri up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Islip?

Everything you need to know for your flight to Islip

Information on the airport you'll fly into in Islip

Cabin class types available on flights to Missouri

Complete your trip to Islip with a hotel stay or car rental

Find direct flights for Islip

Flights to other popular destinations

Flights from domestic origins to Islip

Choose which airport to fly into in Islip

Find deals for your return flight