Cheap flights from Las Vegas to Islip

One-way fares from $255 · LAS → ISP · prices found by travellers in the last 48 hours

Cheapest fare
$255

Frontier Airlines · Tue, Nov 24

Cheapest month
November

from $255

Direct flights
Not recently

Usually 1+ stop

Quickest trip
7h 03m

3,660 km

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Cheapest month to fly from Las Vegas to Islip

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 Cheapest $255

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About flights from Las Vegas to Islip

Las Vegas (LAS) and Islip (ISP) are about 3,660 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 7h 03m. Over the next few months, one-way fares start from $255, and November 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Las Vegas to Islip?

The cheapest one-way fare we've seen recently is $255 with Frontier Airlines, departing Tuesday, November 24, 2026.

What is the cheapest month to fly from Las Vegas to Islip?

November 2026 currently has the lowest fares, from $255 one way.

Are there direct flights from Las Vegas to Islip?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Las Vegas to Islip?

The quickest journey we've seen takes about 7h 03m. Las Vegas and Islip are around 3,660 km apart.

Which airlines fly from Las Vegas to Islip?

Recent fares on this route were with Frontier Airlines.

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