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Flights from Portland to Islip

Cheap flight deals from Portland to Islip

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • Round-trip
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flight Info | Portland to Islip

Off-season for travel March
Peak season for travel March
Flight distance 3,983.6 km
Popular airline Alaska Airlines

When is the cheapest time to fly from Portland to Islip?

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Cheapest flights
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  • 4 11
  • 11 18
  • 18 25

  • Jun

    25 1
  • 1 8
  • 8 15
  • 15 22
  • 22 29

  • Jul

    29 6
  • 6 13
  • 13 20
  • 20 27
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Portland (PDX) to Islip (ISP) the cheapest?

    Airlines adjust prices for flights from Portland to Islip based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Portland (PDX) to Islip (ISP) cost?

    According to Trip.com's data, the lowest price is around AED 2,885.

  • How many airports are there in Islip (ISP)?

    There are 1 airport(s) near Islip (ISP): Long Island Macarthur Airport.

How to find a cheap flight from Portland to Islip

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Portland to Islip. Book your flights at the right time and save more.
1
Being flexible with your dates to get the cheapest Portland to Islip ticket.
Tap "Date" on flight search bar to get the calender for Portland to Islip airfare over next 6 months in 2025.
2
Compare cheap Portland to Islip flight deals from over hundreds of airlines.
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3
Set up a Price Alert
By setting up a Price Alert for your Portland to Islip route, you can easily track the price of your airline tickets from without manually checking every day.
4
Don't miss cheap Portland to Islip flight deals and promo codes.
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5
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
6
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com and search for cheap flight tickets from Portland to Islip to get exclusive deals for you.

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