What airlines fly to Portland?

United Airlines, Alaska Airlines and Delta are the top three most popular airlines that fly to Portland from Islip, New York according to our data. United Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Portland. Keep in mind that there are 9 different airlines that fly to Portland on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Islip Long Island to Portland?

JetBlue is the most popular carrier operating from Islip Long Island to Portland

When did momondo last update prices for flights from Islip Long Island Airport to Portland Airport?

Prices for flights from Islip Long Island Airport to Portland Airport were last updated today.

How old do you have to be to fly from Islip Long Island Airport to Portland Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Islip Long Island Airport to Portland Airport.

What documentation or ID do you need to fly to Portland Airport?

The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$299 Cheap Flights from Islip to Portland in 2025

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Find the cheapest flights from Islip, New York to Portland

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Cheap round-trip flights

These are some of the best round-trip flight deals from Islip, New York to Portland that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Islip, New York to Portland.

Cheap last minute flights

Planning a quick getaway from Islip, New York to Portland? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Portland, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Islip, New York to Portland

Find recent round-trip train or bus tickets from Islip, New York to Portland.

All round-trip flight deals from Islip, New York to Portland

The cheapest plane tickets from Islip, New York to Portland found on KAYAK recently.

12:50 pm - 10:30 pmISP-PDX

12h 40m2 stops

5:40 pm - 10:30 amPDX-ISP

13h 50m2 stops

$557Southwest

Find Deal

Thu, Feb 13 - Sun, Feb 16

6:00 am - 12:06 pmISP-PDX

9h 06m1 stop

$541JetBlue

Find Deal

Sat, Jun 28

How to get the cheapest flight ticket from Islip, New York to Portland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Portland?

The cheapest day to depart on your flight to Portland is on a Wednesday when prices can be found for as low as $376. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Sunday, with ticket prices averaging around $451.

What is the cheapest time of day to depart on your flight to Portland?

The cheapest time of day to fly to Portland is at noon when flights can be purchased for as low as $305. In the morning is when there is more demand to fly to Portland, so prices are often more expensive at around $426 per ticket.

When to book flights from Islip, New York to Portland

Are you open to changing your travel dates? Check out the ideal times to fly from Islip, New York to Portland according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Islip, New York to Portland (ISP to PDX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip, New York to Portland

Best Price Found	$541
Fastest flight time	9h 06m
Direct flights	None
Airports in Portland	1 airport

The best one-way flight to Portland from Islip, New York in the past 72 hours is $541. The best round-trip flight deal from Islip, New York to Portland found on momondo in the last 72 hours is $557.

The fastest flight from Islip, New York to Portland takes 9h 06m

There are no direct flights from Islip, New York to Portland. Popular non-direct route for this connection is Islip Long Island Airport - Portland Airport.

There is 1 airport near Portland: Portland (PDX)

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How far is Islip Long Island to Portland by plane?
The distance between Islip Long Island and Portland is about 2474.8 mi. A reasonable flight in good conditions will take 12h 40m.
When did momondo last update prices for flights from Islip Long Island Airport to Portland Airport?
Prices for flights from Islip Long Island Airport to Portland Airport were last updated today.
How old do you have to be to fly from Islip Long Island Airport to Portland Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Islip Long Island Airport to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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Why use momondo?

Why should I use momondo to find a flight deal from Islip to Portland?

Finding the right flight to Portland from Islip is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Portland quick and easy, saving you time and money.

Can I find flights from Islip to Portland with flexible booking policies on momondo?

Yes. All flights to Portland from Islip on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Islip to Portland?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Portland from Islip.

I’m not ready to book a flight from Islip to Portland right now. Can momondo alert me if prices change?

Price alerts on flights to Portland from Islip are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.