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Cheap flights from Portland to New York from $127

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to New York departing on 10/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Portland to New York

Cheap round-trip flights

Logo
9:30 pm - 10:58 amPDX-ISP
10h 28m2 stops
Logo
4:33 pm - 12:15 amISP-PDX
10h 42m2 stops
$964
Find Deal
Mon, Sep 29 - Fri, Oct 3
Logo
6:51 am - 11:41 pmPDX-ISP
13h 50m2 stops
Logo
2:19 pm - 8:50 pmISP-PDX
9h 31m1 stop
$985
Find Deal
Wed, Aug 27 - Sun, Aug 31
Logo
6:35 pm - 7:04 pmPDX-ISP
21h 29m2 stops
Logo
7:30 am - 10:45 pmISP-PDX
18h 15m2 stops
$990
Find Deal
Wed, Aug 27 - Sun, Aug 31
Logo
8:45 pm - 10:58 amPDX-ISP
11h 13m2 stops
Logo
2:19 pm - 8:07 pmISP-PDX
8h 48m1 stop
$999
Find Deal
Mon, Nov 3 - Fri, Nov 7
Logo
6:14 am - 8:01 pmPDX-ISP
10h 47m2 stops
Logo
2:19 pm - 8:15 pmISP-PDX
8h 56m1 stop
$1,059
Find Deal
Wed, Dec 31 - Wed, Jan 7
Logo
9:30 pm - 10:58 amPDX-ISP
10h 28m2 stops
Logo
4:33 pm - 12:15 amISP-PDX
10h 42m2 stops
$1,074
Find Deal
Sun, Sep 28 - Fri, Oct 3
Logo
9:30 pm - 10:58 amPDX-ISP
10h 28m2 stops
Logo
2:19 pm - 8:50 pmISP-PDX
9h 31m1 stop
$1,099
Find Deal
Mon, Sep 29 - Fri, Oct 3
Logo
9:30 pm - 10:58 amPDX-ISP
10h 28m2 stops
Logo
4:33 pm - 12:15 amISP-PDX
10h 42m2 stops
$1,104
Find Deal
Mon, Sep 8 - Wed, Sep 10
Logo
9:30 pm - 10:58 amPDX-ISP
10h 28m2 stops
Logo
4:33 pm - 12:15 amISP-PDX
10h 42m2 stops
$1,124
Find Deal
Tue, Sep 30 - Fri, Oct 3
Logo
8:38 pm - 10:58 amPDX-ISP
11h 20m2 stops
Logo
2:19 pm - 8:49 pmISP-PDX
9h 30m1 stop
$1,149
Find Deal
Sun, Nov 23 - Tue, Nov 25

Frontier flights from Portland to Islip, New York

Our best Frontier deals on Portland to Islip, New York flight tickets
Frontier
Aug 19
PDX6:51 amPortland
14h 08m
2 stops
ISP11:59 pmIslip Long Island
Aug 26
ISP6:05 amIslip Long Island
19h 34m
2 stops
PDX10:39 pmPortland
$396
Find similar
Frontier
Aug 19
PDX6:51 amPortland
14h 08m
2 stops
ISP11:59 pmIslip Long Island
Aug 26
ISP6:05 amIslip Long Island
19h 34m
2 stops
PDX10:39 pmPortland
$421
Find similar
Frontier
Aug 19
PDX6:51 amPortland
14h 08m
2 stops
ISP11:59 pmIslip Long Island
Aug 24
ISP9:01 pmIslip Long Island
17h 22m
2 stops
PDX11:23 amPortland
$426
Find similar

Southwest flights from Portland to Islip, New York

Our best Southwest deals on Portland to Islip, New York flight tickets
Southwest
Aug 19
PDX9:05 pmPortland
11h 50m
1 stop
ISP11:55 amIslip Long Island
Aug 26
ISP6:05 amIslip Long Island
10h 45m
1 stop
PDX1:50 pmPortland
$692
Find similar
Southwest
Aug 19
PDX6:10 amPortland
11h 55m
2 stops
ISP9:05 pmIslip Long Island
Aug 26
ISP4:00 pmIslip Long Island
9h 20m
2 stops
PDX10:20 pmPortland
$697
Find similar
Southwest
Aug 19
PDX9:05 pmPortland
11h 50m
1 stop
ISP11:55 amIslip Long Island
Aug 26
ISP6:05 amIslip Long Island
10h 45m
1 stop
PDX1:50 pmPortland
$942
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Islip, New York that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Portland to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandIslip

PDX - ISP

PDXISP

Portland

Mon 9/29

9:30 pm-10:58 am

2 stops10h 28m

Islip Long Island

Fri 10/3

4:33 pm-12:15 am

2 stops10h 42m

$964

PortlandIslip

PDX - ISP

PDXISP

Portland

Wed 8/27

6:51 am-11:41 pm

2 stops13h 50m

Islip Long Island

Sun 8/31

2:19 pm-8:50 pm

1 stop9h 31m

$985

PortlandIslip

PDX - ISP

PDXISP

Portland

Wed 8/27

6:35 pm-7:04 pm

2 stops21h 29m

Islip Long Island

Sun 8/31

7:30 am-10:45 pm

2 stops18h 15m

$990

PortlandIslip

PDX - ISP

PDXISP

Portland

Mon 11/3

8:45 pm-10:58 am

2 stops11h 13m

Islip Long Island

Fri 11/7

2:19 pm-8:07 pm

1 stop8h 48m

$999

PortlandIslip

PDX - ISP

PDXISP

Portland

Wed 12/31

6:14 am-8:01 pm

2 stops10h 47m

Islip Long Island

Wed 1/7

2:19 pm-8:15 pm

1 stop8h 56m

$1,059

PortlandIslip

PDX - ISP

PDXISP

Portland

Sun 9/28

9:30 pm-10:58 am

2 stops10h 28m

Islip Long Island

Fri 10/3

4:33 pm-12:15 am

2 stops10h 42m

$1,074

PortlandIslip

PDX - ISP

PDXISP

Portland

Mon 9/29

9:30 pm-10:58 am

2 stops10h 28m

Islip Long Island

Fri 10/3

2:19 pm-8:50 pm

1 stop9h 31m

$1,099

PortlandIslip

PDX - ISP

PDXISP

Portland

Mon 9/8

9:30 pm-10:58 am

2 stops10h 28m

Islip Long Island

Wed 9/10

4:33 pm-12:15 am

2 stops10h 42m

$1,104

PortlandIslip

PDX - ISP

PDXISP

Portland

Tue 9/30

9:30 pm-10:58 am

2 stops10h 28m

Islip Long Island

Fri 10/3

4:33 pm-12:15 am

2 stops10h 42m

$1,124

PortlandIslip

PDX - ISP

PDXISP

Portland

Sun 11/23

8:38 pm-10:58 am

2 stops11h 20m

Islip Long Island

Tue 11/25

2:19 pm-8:49 pm

1 stop9h 30m

$1,149

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to New York from

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

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

What is the cheapest day to depart on your flight to Islip, New York?

The cheapest day to depart from Portland to Islip, New York is on a Friday. Travelers who choose to depart for Islip, New York on a Friday will often find tickets for as low as $377. The most expensive day to fly to Islip, New York is Saturday, with ticket prices averaging around $398.

When to book flights from Portland to Islip, New York

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

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

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

Best Price Found

$127

Fastest flight time

9h 28m

Direct flights

None

Airports in Islip, New York

1 airport
The best one-way flight to Islip, New York from Portland in the past 72 hours is $127. The best round-trip flight deal from Portland to Islip, New York found on momondo in the last 72 hours is $964.
The fastest flight from Portland to Islip, New York takes 9h 28m
There are no direct flights from Portland to Islip, New York. Popular non-direct route for this connection is Portland Airport - Islip Long Island Airport.
There is 1 airport near Islip, New York: Islip Long Island (ISP)
Search flight deals

  • How far is Portland to Islip Long Island by plane?

    A flight from Portland to Islip Long Island will travel around 2474.8 mi. Typically, this will take 9h 28m by plane in normal conditions.

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

    Prices for flights from Portland Airport to Islip Long Island Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Portland Airport to Islip Long Island Airport?

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Islip Long Island Airport.

  • What documentation or ID do you need to fly to Islip Long Island Airport?

    The travel and health documents you'll need for your trip to Islip Long Island Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Islip Long Island Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Portland to Islip, New York?

Best airlines flying from Portland to Islip, New York

Compare and see reviews for airlines that fly from Portland to Islip, New York with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $361Free CancellationRating
8.0
4,244 reviews
Search Southwest flights

Traveling to a place near New York?

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Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Islip. momondo saves you time and could save you money on your trip.

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

All flight searches from Portland to Islip on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Portland and Islip by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Islip from Portland 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.

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