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.

$133 CHEAP FLIGHTS from Missouri to Islip

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals

Cheap Flights from Missouri to Islip

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

Fri, Nov 13 - Sun, Nov 15

4:26 pm - 5:31 pmSTL Lambert-St Louis-ISP Islip Long Island

24h 05m1 stop Orlando

6:33 pm - 11:16 pmISP Islip Long Island-STL Lambert-St Louis

29h 43m1 stop Orlando

$341Frontier

Fri, Nov 13 - Sun, Nov 15

1:05 pm - 11:35 pmSTL Lambert-St Louis-ISP Islip Long Island

9h 30m2 stops Chicago Midway Baltimore/Washington

4:45 pm - 12:10 amISP Islip Long Island-STL Lambert-St Louis

8h 25m1 stop Orlando

$361Southwest

Fri, Nov 13 - Sun, Nov 15

4:40 pm - 11:35 pmSTL Lambert-St Louis-ISP Islip Long Island

5h 55m2 stops Charlotte Douglas Baltimore/Washington

5:35 am - 12:20 pmISP Islip Long Island-STL Lambert-St Louis

7h 45m2 stops Baltimore/Washington Chicago Midway

$366Southwest

Fri, Sep 25 - Tue, Sep 29

5:19 pm - 4:58 pmSTL Lambert-St Louis-ISP Islip Long Island

22h 39m1 stop Orlando

5:43 pm - 1:10 pmISP Islip Long Island-STL Lambert-St Louis

20h 27m2 stops Orlando Atlanta Hartsfield-Jackson

$393Frontier

Fri, Oct 2 - Mon, Oct 5

4:05 pm - 11:10 pmSTL Lambert-St Louis-ISP Islip Long Island

6h 05m1 stop Orlando

5:40 pm - 11:20 pmISP Islip Long Island-STL Lambert-St Louis

6h 40m1 stop Baltimore/Washington

$422Southwest

Fri, Oct 2 - Mon, Oct 5

4:05 pm - 11:10 pmSTL Lambert-St Louis-ISP Islip Long Island

6h 05m1 stop Orlando

5:40 pm - 12:35 amISP Islip Long Island-STL Lambert-St Louis

7h 55m2 stops Baltimore/Washington Orlando

$427Southwest

Fri, Oct 2 - Mon, Oct 5

4:30 pm - 11:35 pmSTL Lambert-St Louis-ISP Islip Long Island

6h 05m2 stops Charleston Baltimore/Washington

5:40 pm - 12:35 amISP Islip Long Island-STL Lambert-St Louis

7h 55m2 stops Baltimore/Washington Orlando

$432Southwest

Sat, Sep 26 - Wed, Sep 30

6:45 am - 2:30 pmSTL Lambert-St Louis-ISP Islip Long Island

6h 45m1 stop Baltimore/Washington

3:20 pm - 9:15 pmISP Islip Long Island-STL Lambert-St Louis

6h 55m1 stop Baltimore/Washington

$441Southwest

Fri, Oct 23 - Sun, Oct 25

5:50 pm - 11:40 pmMCI Kansas City-ISP Islip Long Island

4h 50m1 stop Baltimore/Washington

5:40 am - 10:05 amISP Islip Long Island-MCI Kansas City

5h 25m1 stop Baltimore/Washington

$445Southwest

Sat, Sep 26 - Wed, Sep 30

6:45 am - 2:30 pmSTL Lambert-St Louis-ISP Islip Long Island

6h 45m1 stop Baltimore/Washington

6:05 am - 12:10 pmISP Islip Long Island-STL Lambert-St Louis

7h 05m2 stops Baltimore/Washington Atlanta Hartsfield-Jackson

$446Southwest

Useful Info

Low season	January
High season	July
Cheapest flight	$133

Best time to beat the crowds with an average 22% drop in price.

Most popular time to fly with an average 12% 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.