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Cheap flights from Missouri to New York from $260

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to New York departing on 3/19. 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

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Cheap one-way flights

Enter your travel dates to find the best prices.
Frontier Logo
7:47 am - 3:49 pm
STL
-
ISP
7h 02m1 stop
$260Frontier
Thu, Mar 19
Southwest Logo
6:50 am - 11:55 am
STL
-
ISP
4h 05m1 stop
$300Southwest
Tue, Jan 20
Southwest Logo
11:55 am - 9:55 pm
STL
-
ISP
9h 00m2 stops
$305Southwest
Tue, Jan 20
Frontier Logo
7:47 am - 3:49 pm
STL
-
ISP
7h 02m1 stop
$499Frontier
Sun, Mar 22
Multiple Airlines Logo
5:42 pm - 4:10 pm
STL
-
ISP
45h 28m3 stops
$503Multiple Airlines
Tue, Jan 20
Frontier Logo
7:47 am - 3:49 pm
STL
-
ISP
7h 02m1 stop
$598Frontier
Sun, Mar 15

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Islip, New York 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 January 12, 2026.
Use the filters below to find and compare flights from Missouri to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisIslip

STL - ISP

STLISP

Lambert-St Louis

Thu 3/19

7:47 am-3:49 pm

1 stop7h 02m

$260

St. LouisIslip

STL - ISP

STLISP

Lambert-St Louis

Tue 1/20

6:50 am-11:55 am

1 stop4h 05m

$300

St. LouisIslip

STL - ISP

STLISP

Lambert-St Louis

Tue 1/20

11:55 am-9:55 pm

2 stops9h 00m

$305

St. LouisIslip

STL - ISP

STLISP

Lambert-St Louis

Sun 3/22

7:47 am-3:49 pm

1 stop7h 02m

$499

St. LouisIslip

STL - ISP

STLISP

Lambert-St Louis

Tue 1/20

5:42 pm-4:10 pm

3 stops45h 28m

$503

St. LouisIslip

STL - ISP

STLISP

Lambert-St Louis

Sun 3/15

7:47 am-3:49 pm

1 stop7h 02m

$598

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from Missouri to Islip, New York

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

Can stopping save me money on Missouri to Islip, New York flights?

You could potentially save up to 53% on your flight if you consider stops on a Missouri to Islip, New York flight.

Cheap Missouri to Islip, New York flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to Islip, New York

Fastest flight time

5h 45m

Direct flights

None
The fastest flight from Missouri to Islip, New York takes 5h 45m
There are no direct flights from Missouri to Islip, New York. There are no popular flight routes from Missouri to Islip, New York.
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  • When did momondo last update prices for flights from Missouri to Islip Long Island Airport?

    Prices for flights from Missouri to Islip Long Island Airport were last updated today.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Missouri to Islip Long Island Airport.

  • What documentation or ID do you need to fly to Islip Long Island Airport?

    The travel and health documents you'll need for your trip to Islip Long Island 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 Islip Long Island Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Missouri to Islip, New York

Compare and see reviews for airlines that fly from Missouri to Islip, New York with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $259Free CancellationRating
8.0
4,253 reviews
Search Southwest flights

Traveling to a place near New York?

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Montauk
Riverhead
Sag Harbor
Southampton
Amagansett

Why use momondo?

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

It is quick and easy to find Missouri to Islip flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Islip that suits you.

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

Yes. All flights to Islip from Missouri on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Islip from Missouri. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

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

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