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Cheap flights from St. Louis to Islip, New York from $219

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Islip, New York departing on 7/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to New York

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from St. Louis to New York.
4:57 pm - 10:00 amSTL-ISP
16h 03m1 stop
9:00 am - 11:46 pmISP-STL
15h 46m1 stop
$247Frontier
Find Deal
lun., abr. 14 - vie., abr. 18
5:45 pm - 7:34 pmSTL-ISP
24h 49m1 stop
8:21 pm - 11:52 pmISP-STL
28h 31m1 stop
$298Frontier
Find Deal
jue., may. 22 - dom., may. 25
8:50 am - 5:25 pmSTL-ISP
7h 35m2 stops
6:45 am - 10:25 amISP-STL
4h 40m1 stop
$382Southwest
Find Deal
jue., may. 22 - dom., may. 25
8:50 am - 5:25 pmSTL-ISP
7h 35m2 stops
6:45 am - 2:40 pmISP-STL
8h 55m2 stops
$397Southwest
Find Deal
jue., may. 22 - dom., may. 25

Frontier flights from St. Louis to Islip, New York

Our best Frontier deals on St. Louis to Islip, New York flight tickets
Frontier
Apr 14
STL4:57 pmLambert-St Louis
16h 03m
1 stop
ISP10:00 amIslip Long Island
Apr 18
ISP9:00 amIslip Long Island
15h 46m
1 stop
STL11:46 pmLambert-St Louis
Frontier
Apr 7
STL4:57 pmLambert-St Louis
16h 03m
1 stop
ISP10:00 amIslip Long Island
Apr 14
ISP9:29 pmIslip Long Island
27h 17m
1 stop
STL11:46 pmLambert-St Louis
Frontier
May 22
STL5:45 pmLambert-St Louis
24h 49m
1 stop
ISP7:34 pmIslip Long Island
May 25
ISP8:21 pmIslip Long Island
28h 31m
1 stop
STL11:52 pmLambert-St Louis

Southwest flights from St. Louis to Islip, New York

Our best Southwest deals on St. Louis to Islip, New York flight tickets
Southwest
May 22
STL8:50 amLambert-St Louis
7h 35m
2 stops
ISP5:25 pmIslip Long Island
May 25
ISP6:45 amIslip Long Island
4h 40m
1 stop
STL10:25 amLambert-St Louis
Southwest
May 22
STL8:50 amLambert-St Louis
7h 35m
2 stops
ISP5:25 pmIslip Long Island
May 25
ISP6:45 amIslip Long Island
8h 55m
2 stops
STL2:40 pmLambert-St Louis
Southwest
Apr 2
STL8:15 amLambert-St Louis
6h 20m
1 stop
ISP3:35 pmIslip Long Island
Apr 3
ISP10:20 amIslip Long Island
8h 25m
2 stops
STL5:45 pmLambert-St Louis

See travel insights to New York from

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

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Islip, New York according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

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

Best Price Found

$219

Fastest flight time

6h 45m

Direct flights

None

Airports in Islip, New York

1 airport
The best one-way flight to Islip, New York from St. Louis in the past 72 hours is $219. The best round-trip flight deal from St. Louis to Islip, New York found on momondo in the last 72 hours is $247.
The fastest flight from St. Louis to Islip, New York takes 6h 45m
There are no direct flights from St. Louis to Islip, New York. Popular non-direct route for this connection is Lambert-St Louis Airport - Islip Long Island Airport.
There is 1 airport near Islip, New York: Islip Long Island (ISP)

  • 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. 7h 35m 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?

  • 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?


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
SouthwestPriceFrom $339Free CancellationRating
8.0
4,275 reviews
Search Southwest flights

Traveling to a place near New York?

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Riverhead
Amagansett
Sag Harbor
Southampton

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Why should I use momondo to find a flight deal from St. Louis to Islip?

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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.


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