ISP

$214 Find Cheap Flights from Missouri to Islip

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Islip departing on 4/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$221
Frontier
Sat 2/14Wed 2/18
STL - ISP • 1 stop
Cheapest one-way
$214
Southwest
Fri 4/10
STL - ISP • 1 stop
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Flight Deals
Useful Info
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.

Recent round-trip flight deals from Missouri to Islip

Sat, Feb 14 - Wed, Feb 18
Frontier Logo
9:41 am - 7:28 pm
STL
-
ISP
8h 47m
1 stop
Frontier Logo
2:03 pm - 10:27 pm
ISP
-
STL
9h 24m
1 stop
$221Frontier
Sat, Feb 14 - Sat, Feb 21
Frontier Logo
9:41 am - 7:28 pm
STL
-
ISP
8h 47m
1 stop
Frontier Logo
11:41 am - 11:59 pm
ISP
-
STL
13h 18m
1 stop
$242Frontier
Fri, May 1 - Sun, May 3
Southwest Logo
5:35 pm - 11:30 pm
MCI
-
ISP
4h 55m
1 stop
Southwest Logo
6:05 am - 10:05 am
ISP
-
MCI
5h 00m
1 stop
$407Southwest
Fri, May 1 - Sun, May 3
Southwest Logo
2:50 pm - 11:30 pm
MCI
-
ISP
7h 40m
2 stops
Southwest Logo
6:05 am - 10:05 am
ISP
-
MCI
5h 00m
1 stop
$432Southwest
Fri, May 1 - Sun, May 3
Southwest Logo
2:50 pm - 11:30 pm
MCI
-
ISP
7h 40m
2 stops
Southwest Logo
5:25 pm - 11:05 pm
ISP
-
MCI
6h 40m
2 stops
$457Southwest
Sun, Mar 29 - Sun, Apr 5
Frontier Logo
7:52 am - 4:13 pm
STL
-
ISP
7h 21m
1 stop
Frontier Logo
8:36 pm - 7:51 am
ISP
-
STL
12h 15m
1 stop
$660Frontier
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$214
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from St. Louis to Islip

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?

Book flights to Islip if you plan to visit one of these locations
Riverhead
Amagansett

Everything you need to know for your flight to Islip

Information on the airport you'll fly into in Islip

Islip (ISP)