HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Missouri to Islip (ISP) from $120

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/17. 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.
STL — ISP
Jun 8 — Jun 151
From?
To?
Sat 6/8
Sat 6/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

How far in advance should I book a flight from Missouri to Islip, New York?

To save on the cost of your flight from Missouri to Islip, New York, book at least 58 days before your planned departure. Booking around this time can save you about 177% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $290 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $562.

What is the cheapest month to fly from Missouri to Islip, New York?

September is one of the best times of the year to fly to Islip, New York from Missouri. Prices for September average $309 per person but you can even find prices for as low as $129. The most expensive prices can be found in the month of June. Opting for a September flight can save you 6% on your journey compared to booking in June

What is the cheapest time of day to fly from MO to ISP?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missouri to Islip, New York as you normally would.

Cheap Frontier flights from Missouri to Islip

Explore cheap flight options specifically provided by Frontier for the route between Missouri and Islip. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,824,458 searches. Data last updated June 3, 2024.
Mon 7/17:29 pmSTL - ISP
1 stop11h 11mFrontier
Fri 7/54:52 pmISP - STL
1 stop16h 44mFrontier
Deal found 6/2$365
Sun 6/307:44 pmSTL - ISP
1 stop10h 56mFrontier
Sun 7/710:22 pmISP - STL
1 stop11h 21mFrontier
Deal found 6/2$398

Cheap Missouri to Islip flights in June & July 2024

Find cheap flight options from Missouri to Islip specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,824,458 searches. Prices were last updated on June 3, 2024.
Mon 7/17:29 pmSTL - ISP
1 stop11h 11mFrontier
Fri 7/54:52 pmISP - STL
1 stop16h 44mFrontier
Deal found 6/2$365
Sun 6/307:44 pmSTL - ISP
1 stop10h 56mFrontier
Sun 7/710:22 pmISP - STL
1 stop11h 21mFrontier
Deal found 6/2$398

Missouri to Islip 2024 flight deals

Discover exclusive flight deals for travel between Missouri and Islip in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,824,458 searches. Data last updated June 3, 2024.
Mon 7/17:29 pmSTL - ISP
1 stop11h 11mFrontier
Fri 7/54:52 pmISP - STL
1 stop16h 44mFrontier
Deal found 6/2$365
Sun 6/307:44 pmSTL - ISP
1 stop10h 56mFrontier
Sun 7/710:22 pmISP - STL
1 stop11h 21mFrontier
Deal found 6/2$398

One-way flights to Islip from Missouri

Search for one-way flight options from Missouri to Islip. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,824,458 searches. Data last updated June 3, 2024.
Wed 7/177:33 pmSTL - ISP
1 stop12h 06mFrontier
Deal found 6/2$120
Sun 6/97:44 pmSTL - ISP
1 stop10h 56mFrontier
Deal found 6/2$155
Fri 7/267:33 pmSTL - ISP
1 stop12h 05mFrontier
Deal found 6/2$205
Wed 7/37:29 pmSTL - ISP
1 stop12h 10mFrontier
Deal found 6/2$235

Find flights from Missouri to Islip within your budget

Customize your flight search to find flights from Missouri to Islip 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, Cheapflights users made 2,824,458 searches. Data last updated June 3, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$365 - $398

Route

Depart

Return

Price

Lambert-St LouisIslip Long Island

STL - ISP

STLISP

Lambert-St Louis

Mon 7/1

1 stop11h 11m

Islip Long Island

Fri 7/5

1 stop16h 44m

$365

Lambert-St LouisIslip Long Island

STL - ISP

STLISP

Lambert-St Louis

Sun 6/30

1 stop10h 56m

Islip Long Island

Sun 7/7

1 stop11h 21m

$398

Flights are sorted by cheapest first

Deals found on 6/2

No data available for this route at this time. Please check back soon.

Best time to book a flight from Missouri to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Missouri with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Islip. Reviews last updated June 3, 2024.
Frontier
6.2
Okay
3,990 reviews
Check prices

Crew

7.0

Food

5.1

Comfort

5.8

Boarding

6.5

Entertainment

4.9

Overall

6.2

Reviews

1 / 10

I'd thought there would be a complimentary drink atleast.

Frontier
6.2
Okay
3,990 reviews
Frontier
6.2
Okay
3,990 reviews
Check prices

Crew

7.0

Food

5.1

Comfort

5.8

Boarding

6.5

Entertainment

4.9

Overall

6.2

Reviews

1 / 10

I'd thought there would be a complimentary drink atleast.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Islip from Missouri?

    If you book a flight to Islip from Missouri, you will be flying to Long Island, which is the city’s only airport. Islip Long Island (ISP) is located 7.2 mi from the center of Islip.

  • Can I find flights from Missouri to Islip, New York for under $400 on Cheapflights?

    Yes, there are multiple flights from Missouri to Islip, New York for under $400. The cheapest flight booked recently is on Frontier for just $365, but on average you can expect to pay $381.

  • What are the most popular routes from Missouri to Islip, New York?

    The most popular route from Missouri to Islip, New York is Lambert-St Louis - Islip Long Island. You may also consider Kansas City - Islip Long Island or Springfield-Branson - Islip Long Island.

  • What does STL to ISP mean?

    STL stands for Lambert-St Louis Airport, while ISP stands for Islip Long Island Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Kansas City Airport (MCI), Springfield-Branson Airport (SGF), Columbia Regional Airport (COU), Kansas City Downtown Airport (MKC), Branson Airport (BKG).

  • Can I find deals for flights from Missouri to Islip that include extra baggage allowance?

    The amount of baggage you can bring on your Missouri to Islip flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Missouri to Islip with specific airlines?

    Yes, Cheapflights allows you to browse and filter Missouri to Islip flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Missouri to Islip that include hotel bookings?

    Yes. In addition to deals on Missouri to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Islip?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Islip.

  • Can I find deals for business class flights from Missouri to Islip?

    Yes. Cheapflights offers flight deals from Missouri to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Missouri to Islip that allow pets onboard?

    Many airlines flying from Missouri to Islip offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Missouri to Islip?

    Yes, you can often find last-minute deals on Missouri to Islip flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Missouri to Islip, New York flight deals updated?

    The Missouri to Islip, New York flight deals you see on this page were last updated on 6/2.

  • What is the cheapest month to book a flight from Missouri to Islip, New York?

    Currently, December is the cheapest month in which you can book a flight from Missouri to Islip, New York (average of $78). Flying from Missouri to Islip, New York in February is currently the most expensive (average of $151). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Missouri to Islip
See prices for flight routes from nearby airports that may be better suited for you.

Los Angeles to John F Kennedy Intl flights
Los Angeles to Newark flights
Dallas/Fort Worth to LaGuardia flights
Fort Lauderdale to Newark flights
San Francisco to John F Kennedy Intl flights
Dallas/Fort Worth to Newark flights
Fort Lauderdale to LaGuardia flights
Los Angeles to LaGuardia flights
San Francisco to Newark flights
Orlando to Newark flights
Dallas/Fort Worth to John F Kennedy Intl flights
Orlando to LaGuardia flights
O'Hare Intl to LaGuardia flights
Seattle to John F Kennedy Intl flights
Miami to Newark flights
Atlanta to Newark flights
Atlanta to LaGuardia flights
San Francisco to LaGuardia flights
Ontario to John F Kennedy Intl flights
O'Hare Intl to Newark flights
Miami to LaGuardia flights
Miami to John F Kennedy Intl flights
O'Hare Intl to John F Kennedy Intl flights
Seattle to Newark flights
Burbank to Newark flights
Hobby to Newark flights
Fort Lauderdale to John F Kennedy Intl flights
Tampa to Newark flights
Atlanta to John F Kennedy Intl flights
Oakland to Newark flights
Hobby to LaGuardia flights
Denver to LaGuardia flights
Tampa to LaGuardia flights
Orlando to John F Kennedy Intl flights
Seattle to LaGuardia flights
Midway to LaGuardia flights
Raleigh to Newark flights
Austin to John F Kennedy Intl flights
Raleigh to LaGuardia flights
George Bush Intcntl to Newark flights
George Bush Intcntl to LaGuardia flights
Burbank to LaGuardia flights
San Diego to John F Kennedy Intl flights
Midway to Newark flights
Oakland to LaGuardia flights
Minneapolis to LaGuardia flights
Denver to Newark flights
Minneapolis to Newark flights
Ontario to LaGuardia flights
Austin to Newark flights
Atlanta to Miami flights
Philadelphia to Tampa flights
New York to Miami flights
Fort Lauderdale to Boston flights
Las Vegas to Sacramento flights
Chicago to Toronto flights
New York to Lisbon flights
Boston to Montreal flights
Milwaukee to Las Vegas flights
Hartford to Orlando flights
Seattle to Atlanta flights
Missouri to Istanbul Airport flights

Search flights from Missouri to Islip by cabin class

Find flights from Missouri to Islip, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Gaziantep
Flights to Miyakojima Hirara
Flights to Figari-Sud Corse
Flights to Mason City
Flights to Komatsu
Flights to Sendai
Flights to Rhinelander Oneida County
Flights to Constanţa Mihail Kogalniceanu
Flights to Brainerd Crow Wing County
Flights to Reus
Flights to Virac
Flights to Neiva La Marguita
Flights to Pellston Emmet County
Flights to Urumqi
Flights to Bastia Poretta
Flights to Samos
Flights to Hyannis Barnstable
Flights to Provincetown
Flights to Alghero-Fertilia
Flights to Laayoune Hassan I
Flights to Devils Lake
Flights to Vava'u Lupepau'U
Flights to Hakodate
Flights to Edremit/Korfez

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Missouri to Islip?

Cheapflights helps you search for flights from Missouri to Islip via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Missouri to Islip?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Missouri to Islip.

Can Cheapflights find flights from Missouri to Islip with no change fees?

Yes! Cheapflights helps users easily find flights from Missouri to Islip with no change fees.

Can Cheapflights notify me if prices for flights from Missouri to Islip become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines