Q: E

Most accurate provider : When it comes to deals on St. Louis-Islip, New York flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Islip, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Islip, New York flight searches over the past month and is updated monthly.

Question 1

What is the cheapest airline to fly from St. Louis to Islip, New York round-trip?

Accepted Answer

Our cheapest airline available from St. Louis to Islip, New York is Frontier. Our recent data shows that you can find tickets from as low as $510 on this airline.

Question 2

What is the cheapest month to book a flight from St. Louis to Islip, New York?

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from St. Louis to Islip, New York (average of $108). Flying from St. Louis to Islip, New York in February is currently the most expensive (average of $220). 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.

Question 3

What is the cheapest day to fly from St. Louis to Islip, New York?

Accepted Answer

Travelers seeking maximum savings on their St. Louis to Islip, New York flight should consider departing on Saturday evenings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 4

E

Accepted Answer

In terms of precipitation, rainfall in Islip, New York ranges from 3.3 - 4.4 inches per month. March is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Islip, New York when rainfall is around 3.3 in.

Question 5

E

Accepted Answer

If weather is an important factor for your trip to Islip, New York, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Question 6

What is the cheapest day to fly round-trip from St. Louis to Islip, New York?

Accepted Answer

Departing on a Friday is a good option for securing a great price. You can expect to save up to 166% when planning your travel around this day of the week.

Question 7

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

Accepted Answer

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 58 days in advance, which can save you up to 79% on flights from St. Louis to Islip, New York compared to booking the week you need them. Waiting 58 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $415. For sooner than that we have options available in the next 3 days from $492.

Question 8

What is the cheapest month to fly from St. Louis to Islip, New York?

Accepted Answer

Due to multiple factors, expect to potentially pay more when booking in November. For low rates, September can be a great choice for travel to Islip, New York. Flights to Islip, New York from St. Louis in September are about $322 on average during September, but can be found for as low as $183.

Question 9

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

Accepted Answer

A simple way to save on the total cost of your ticket is to fly from St. Louis to Islip, New York at noon. If you’re flexible enough to do this you can expect to save up to 60% on your trip compared to booking a flight in the morning.

Question 10

E

Accepted Answer

Most accurate provider: When it comes to deals on St. Louis-Islip, New York flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Islip, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Islip, New York flight searches over the past month and is updated monthly.

Question 11

E

Accepted Answer

Most trusted provider: When it comes to deals on St. Louis-Islip, New York flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Islip, New York flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Question 12

Can I find deals for flights from St. Louis to Islip that include hotel bookings?

Accepted Answer

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

Question 13

How can I find direct flights from St. Louis to Islip?

Accepted Answer

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

Question 14

Can I find deals for business class flights from St. Louis to Islip?

Accepted Answer

Yes. Cheapflights offers flight deals from St. Louis 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.

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$510 (CheapOair)
Popular in	May
Cheapest in	January
Average price	$99

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars

$510+ Cheap flights from St. Louis to Islip, NY (STL - ISP)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/21. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapest flights from St. Louis to IslipExplore the most affordable flight options available from St. Louis to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 17, 2025.

Explore the most affordable flight options available from St. Louis to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 17, 2025.

Find flights from St. Louis to Islip within your budget

Compare providers for flights from St. Louis to Islip

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Islip in January.

Best time to book a flight from St. Louis to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from St. Louis with our price prediction graph.

Travel insights for flights from St. Louis to Islip

Get recent, data-driven insights about flights from St. Louis to Islip including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from St. Louis to Islip, New York?

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

Find hourly flight availability from St. Louis to Islip. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 17, 2025.

Rainfall in Islip by month

Plan your trip to Islip by taking into account the average rainfall totals by month.

Temperature in Islip by month

Plan your trip to Islip by taking into account the average temperature totals by month.

Reviews of airlines servicing Islip

Related info for your journey

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

What is the cheapest airline to fly from St. Louis to Islip, New York round-trip?

Can I find deals for flights from St. Louis to Islip that include hotel bookings?

How can I find direct flights from St. Louis to Islip?

Can I find deals for business class flights from St. Louis to Islip?

What is the cheapest month to book a flight from St. Louis to Islip, New York?

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Cheapest flights from St. Louis to Islip
Explore the most affordable flight options available from St. Louis to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 17, 2025.