Flight deals from Portland to Islip

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

Round-trip
One way

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

Flight Information from Portland to Islip

Cheapest one-way flight price	MYR 1,005
Off-season travel month	January
Peak season for travel	December
Flight distance	391.5km
Popular airline	American Airlines

Find the best time to fly from Portland to Islip

We monitor flight fares to help you find the best deals effortlessly

Cheapest flights

From price

11 18
18 25
Jun

25 1
1 8
8 15
15 22
22 29
Jul

29 6
6 13
13 20
20 27
Aug

27 3

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

FAQ

When are flight tickets from Portland (PWM) 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 cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much are flights from Portland (PWM) to Islip (ISP) cost?

According to Trip.com's data, the lowest price is around MYR 2,303.
How many airports in Islip (ISP)?

There are 1 airport(s) in 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.

Be flexible with your travel dates to get the cheapest flight from Portland to Islip.

Simply tap "Date" on the flight search bar to browse through the calendar and check out airfare from Portland to Islip over the next 6 months in 2025. If you're planning to fly within the next three months, it looks like the most affordable option is on Sat, Jul 12, with one-way flights priced at just MYR 1006.

Compare cheap flight deals from Portland to Islip across hundreds of airlines.

With our extensive search, you can compare prices from over 500 airlines to find the cheapest flight tickets from Portland to Islip. The cheapest airline for this route is Frontier Airlines.

Set up a Price Alert

By setting up a Price Alert for your journey from Portland to Islip, you can easily keep an eye on ticket prices without having to check every day.

Don't miss out on cheap flight deals and promo codes from Portland to Islip.

You can always find the latest offers through Trip.com Deals and Promo Codes for cheap flights. By signing up for a free membership, you'll get access to even more deals for your flights.

Book early or wait until the last minute.

It's usually best to book early. Flight tickets are often cheapest when they're first released, typically about a year before the departure date. So, have a look online as soon as the flights you're interested in become available. If you miss the cheapest time, you might still find some good deals as the departure date gets closer.

Search for flights on the go.

For the best travel flight booking experience, download the Trip.com app. You can search for cheap flights from Portland to Islip and snag some exclusive deals just for you.