Cheap flights from Islip to Dallas

One-way fares from $260 · ISP → DFW · prices found by travellers in the last 48 hours

Compare all dates Dallas → Islip
Cheapest fare
$260

Frontier Airlines · Sun, Nov 8

Cheapest month
November

from $260

Direct flights
Not recently

Usually 1+ stop

Quickest trip
6h 18m

2,280 km

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Cheapest month to fly from Islip to Dallas

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

  1. November 2026 Cheapest $260

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About flights from Islip to Dallas

Islip (ISP) and Dallas (DFW) are about 2,280 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 6h 18m. Over the next few months, one-way fares start from $260, 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 Islip to Dallas?

The cheapest one-way fare we've seen recently is $260 with Frontier Airlines, departing Sunday, November 8, 2026.

What is the cheapest month to fly from Islip to Dallas?

November 2026 currently has the lowest fares, from $260 one way.

Are there direct flights from Islip to Dallas?

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

How long is the flight from Islip to Dallas?

The quickest journey we've seen takes about 6h 18m. Islip and Dallas are around 2,280 km apart.

Which airlines fly from Islip to Dallas?

Recent fares on this route were with Frontier Airlines.

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