To save up to 117% on this flight, we recommend booking at least 47 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Islip, New York to St. Louis from $445 1-2 weeks out and tickets from $562 for flights departing within the next 72 hours.
Due to multiple factors, expect to potentially pay more when booking in December. For low rates, September can be a great choice for travel to St. Louis. Flights to St. Louis from Islip, New York in September are about $333 on average during September, but can be found for as low as $119.
Unlike in the morning, when flights are generally more expensive, you can save up to 8% on flights from Islip, New York to St. Louis by exploring options for tickets at noon.
Fly from
Fly to
Budget
$194 - $194
Route
Depart
Return
Price
Islip Long IslandLambert-St Louis
ISP - STL
ISPSTL
Islip Long Island
Thu 5/30
1 stop9h 41m
Lambert-St Louis
Sat 6/1
1 stop9h 44m
No data available for this route at this time. Please check back soon.
Crew
Boarding
Food
Comfort
Entertainment
Overall
Reviews
Inexpensive flight, and everything is an extra charge, so okay, fair deal!
Sunday | 1daily flight |
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Monday | 0daily flights |
Tuesday | 0daily flights |
Wednesday | 0daily flights |
Thursday | 0daily flights |
Friday | 0daily flights |
Saturday | 0daily flights |
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Cheapflights simply makes it quick and affordable to book flights from Islip to St. Louis by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Certainly. Search results for flights to St. Louis from Islip shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
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