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Not ready to book? to track prices.Find the cheapest flights from Illinois to New York
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Frontier flights from Illinois to Islip, New York
Our best Frontier deals on Illinois to Islip, New York flight tickets
Southwest flights from Illinois to Islip, New York
Our best Southwest deals on Illinois to Islip, New York flight tickets
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How to get the cheapest flight ticket from Illinois 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
What is the cheapest day to depart on your flight to Islip, New York?
The cheapest day to depart from Illinois to Islip, New York is on a Thursday. Travelers who choose to depart for Islip, New York on a Thursday will often find tickets for as low as $223. The most expensive day to fly to Islip, New York is Wednesday, with ticket prices averaging around $416.
What is the cheapest time of day to depart on your flight to Islip, New York?
Flying to Islip, New York from Illinois at noon is the least expensive time of day to depart. momondo users have found prices as low as $141 when looking at flights departing at noon. Flights to Islip, New York are more costly in the morning, with an average ticket price of $369. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest airline that flies from Illinois to Islip Long Island?
Frontier and Southwest are the most popular carriers operating from Illinois to Islip Long Island
What airlines fly to Islip, New York?
American Airlines, United Airlines and Spirit Airlines are the top three most popular airlines that fly to Islip, New York from Illinois according to our data. American Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 7 different airlines that fly to Islip, New York on a routine basis, so you have a few additional options to choose from.
Cheap Illinois to Islip, New York flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Illinois to Islip, New York
When did momondo last update prices for flights from Illinois to Islip Long Island Airport?
Prices for flights from Illinois to Islip Long Island Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Illinois to Islip Long Island Airport?
As of June 2025, there is 1 operator available to choose from for flights from Illinois to Islip Long Island Airport.
How old do you have to be to fly from Illinois 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 Illinois to Islip Long Island Airport.
What documentation or ID do you need to fly to Islip Long Island Airport?
The travel and health documents required for your trip to Islip Long Island Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Islip Long Island Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Illinois to Islip, New York
Compare and see reviews for airlines that fly from Illinois to Islip, New York with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $318 | Free Cancellation | Rating 8.0 4,278 reviews |
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Why should I use momondo to find a flight deal from Illinois to Islip?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Islip for you.
Can I find flights from Illinois to Islip with flexible booking policies on momondo?
Yes. All flights to Islip from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Illinois to Islip?
momondo helps you find the best flight between Illinois and Islip by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Illinois to Islip right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Illinois to Islip flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.