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Southwest flights from St. Louis to Islip, New York
Our best Southwest deals on St. Louis to Islip, New York flight tickets
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How to get the cheapest flight ticket from St. Louis 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 St. Louis to Islip, New York is on a Saturday. Travelers who choose to depart for Islip, New York on a Saturday will often find tickets for as low as $156. The most expensive day to fly to Islip, New York is Thursday, 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 St. Louis in the evening is the least expensive time of day to depart. momondo users have found prices as low as $156 when looking at flights departing in the evening. Flights to Islip, New York are more costly in the morning, with an average ticket price of $386. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
When to book flights from St. Louis to Islip, New York
Cheap St. Louis to Islip, New York (STL to ISP) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Islip, New York
How far is Lambert-St Louis to Islip Long Island by plane?
The straight-line distance from Lambert-St Louis to Islip Long Island is 912.8 mi. 6h 00m is a normal flight duration for this route.
When did momondo last update prices for flights from Lambert-St Louis Airport to Islip Long Island Airport?
Prices for flights from Lambert-St Louis Airport to Islip Long Island Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Islip Long Island Airport?
The number of operators available for flights from Lambert-St Louis Airport to Islip Long Island Airport is 1 as of April 2025.
How old do you have to be to fly from Lambert-St Louis Airport to Islip Long Island Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport 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.
What is the most popular airline from St. Louis to Islip, New York?
momondo data reveals that the most frequently booked airline on the route from St. Louis to Islip, New York is Southwest, representing 100% of all bookings.
Best airlines flying from St. Louis to Islip, New York
Compare and see reviews for airlines that fly from St. Louis to Islip, New York with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $339 | Free Cancellation | Rating 8.0 4,287 reviews |
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Why should I use momondo to find a flight deal from St. Louis to Islip?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Islip. momondo saves you time and could save you money on your trip.
Can I find flights from St. Louis to Islip with flexible booking policies on momondo?
All flight searches from St. Louis to Islip on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from St. Louis to Islip?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Islip.
I’m not ready to book a flight from St. Louis to Islip right now. Can momondo alert me if prices change?
Price alerts on flights to Islip from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.