Which airports can I use when flying from Portland to Islip?

Flights from Portland to Islip usually depart from Portland (PWM) and arrive at Islip Long Island (ISP).

Which airports do connecting flights from Portland to Islip pass through?

Most connecting flights from Portland to Islip pass through Baltimore/Washington (BWI), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.

Do I need a passport to fly from Portland to Islip?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Have flight prices from Portland to Islip changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $392 to $1,471. That means the highest observed fare was about 4x higher than the lowest one.

How are flight prices from Portland to Islip looking right now?

One-way fares from Portland to Islip are currently higher than usual. Average one-way flight prices are about $272, which is 33% above the typical average for this route.

What car rental options are available at Islip Long Island Airport (ISP)?

Islip Long Island Airport (ISP) hosts 5 major car rental companies, with daily rates starting from around $36 for economy cars. Top options include: · Budget · Enterprise Rent-A-Car · Avis · National · Empire Rent A Car

What is the cheapest layover airport when flying from Portland to Islip?

Flights via Baltimore/Washington (BWI) offer the most affordable fares, with an average round-trip price of $349. Based on KAYAK data over the past 3 months.

When flying from Portland to Islip which airport offers the shortest layover?

Baltimore/Washington (BWI) had the shortest average connection time for Portland to Islip layovers at 199 minutes over the past 3 months.

$165 CHEAP FLIGHTS from Portland to Islip (PWM - ISP)

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Cheapest round-trip

$392

Typical prices: $349-$349

Breeze Airways

Tue 9/25Sat 9/29

PWM - ISP • 2 stops

Cheapest one-way

$165

Typical prices: $203-$203

Southwest

Tue 10/30

PWM - ISP • 1 stop

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We hope you love your trip to Islip!

Flight Deals

Cheap Flights from Portland to Islip (PWM-ISP)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Portland to Islip

Fri, Sep 25 - Tue, Sep 29

3:53 pm - 11:20 amPWM Portland-ISP Islip Long Island

19h 27m2 stops Columbus Raleigh-Durham

5:43 pm - 9:08 amISP Islip Long Island-PWM Portland

15h 25m1 stop Orlando

$392Multiple Airlines

Fri, Sep 25 - Mon, Sep 28

3:53 pm - 11:20 amPWM Portland-ISP Islip Long Island

19h 27m2 stops Columbus Raleigh-Durham

11:52 am - 4:24 pmISP Islip Long Island-PWM Portland

28h 32m1 stop Raleigh-Durham

$433Breeze Airways

Mon, Sep 14 - Fri, Sep 18

3:53 pm - 11:20 amPWM Portland-ISP Islip Long Island

19h 27m2 stops Columbus Raleigh-Durham

11:52 am - 4:24 pmISP Islip Long Island-PWM Portland

28h 32m1 stop Raleigh-Durham

$477Breeze Airways

Fri, Sep 11 - Sun, Sep 13

3:53 pm - 11:20 amPWM Portland-ISP Islip Long Island

19h 27m2 stops Columbus Raleigh-Durham

5:43 pm - 9:08 amISP Islip Long Island-PWM Portland

15h 25m1 stop Orlando

$480Multiple Airlines

Thu, Oct 8 - Tue, Oct 13

7:00 am - 10:28 amPWM Portland-ISP Islip Long Island

27h 28m2 stops Akron/Canton Myrtle Beach Intl

12:00 pm - 4:24 pmISP Islip Long Island-PWM Portland

28h 24m1 stop Raleigh-Durham

$482Breeze Airways

Thu, Oct 15 - Mon, Oct 26

7:00 am - 10:28 amPWM Portland-ISP Islip Long Island

27h 28m2 stops Akron/Canton Myrtle Beach Intl

3:02 pm - 4:24 pmISP Islip Long Island-PWM Portland

25h 22m1 stop Raleigh-Durham

$482Breeze Airways

Fri, Sep 25 - Mon, Sep 28

3:53 pm - 11:20 amPWM Portland-ISP Islip Long Island

19h 27m2 stops Columbus Raleigh-Durham

11:52 am - 4:24 pmISP Islip Long Island-PWM Portland

28h 32m1 stop Raleigh-Durham

$504Breeze Airways

Wed, Oct 7 - Wed, Oct 14

5:09 pm - 10:17 amPWM Portland-ISP Islip Long Island

17h 08m1 stop Raleigh-Durham

12:00 pm - 9:21 amISP Islip Long Island-PWM Portland

21h 21m2 stops Raleigh-Durham Fort Myers SW Florida Intl

$509Breeze Airways

Thu, Oct 15 - Mon, Oct 26

5:20 am - 11:45 amPWM Portland-ISP Islip Long Island

6h 25m1 stop Baltimore/Washington

6:00 am - 12:25 pmISP Islip Long Island-PWM Portland

6h 25m1 stop Baltimore/Washington

$533Southwest

Fri, Sep 11 - Sun, Sep 13

9:48 am - 4:58 pmPWM Portland-ISP Islip Long Island

31h 10m1 stop Orlando

5:43 pm - 9:08 amISP Islip Long Island-PWM Portland

15h 25m1 stop Orlando

$538Multiple Airlines

Recent last minute flight deals from Portland to Islip

Fri, Sep 4 - Sat, Sep 5

9:52 am - 6:14 pmPWM Portland-ISP Islip Long Island

8h 22m1 stop Orlando

6:09 pm - 10:39 pmISP Islip Long Island-PWM Portland

28h 30m2 stops Myrtle Beach Intl Akron/Canton

$545Multiple Airlines

Sat, Sep 5 - Wed, Sep 9

11:07 am - 9:53 amPWM Portland-ISP Islip Long Island

22h 46m1 stop Orlando

6:08 pm - 11:24 pmISP Islip Long Island-PWM Portland

53h 16m2 stops Myrtle Beach Intl Cincinnati Cinci./N. Kentucky

$572Multiple Airlines

Sat, Sep 5 - Wed, Sep 9

11:07 am - 9:53 amPWM Portland-ISP Islip Long Island

22h 46m1 stop Orlando

12:00 pm - 4:24 pmISP Islip Long Island-PWM Portland

4h 24m1 stop Raleigh-Durham

$740Multiple Airlines

Thu, Sep 3 - Fri, Sep 4

7:00 am - 12:20 pmPWM Portland-ISP Islip Long Island

29h 20m2 stops Akron/Canton Myrtle Beach Intl

7:09 pm - 10:27 amISP Islip Long Island-PWM Portland

15h 18m1 stop Orlando

$751Multiple Airlines

Fri, Sep 4 - Sat, Sep 5

9:52 am - 6:14 pmPWM Portland-ISP Islip Long Island

8h 22m1 stop Orlando

11:57 am - 4:16 pmISP Islip Long Island-PWM Portland

4h 19m1 stop Raleigh-Durham

$774Multiple Airlines

Sat, Sep 5 - Wed, Sep 9

7:25 am - 12:05 pmPWM Portland-ISP Islip Long Island

4h 40m1 stop Baltimore/Washington

10:55 am - 10:10 pmISP Islip Long Island-PWM Portland

11h 15m2 stops Baltimore/Washington Chicago Midway

$884Southwest

Sat, Sep 5 - Wed, Sep 9

5:01 pm - 6:06 pmPWM Portland-ISP Islip Long Island

25h 05m3 stops Raleigh-Durham Fort Myers SW Florida Intl Richmond Byrd Intl

6:08 pm - 10:19 pmISP Islip Long Island-PWM Portland

28h 11m2 stops Myrtle Beach Intl Akron/Canton

$884Breeze Airways

Sat, Sep 5 - Wed, Sep 9

10:30 am - 7:35 pmPWM Portland-ISP Islip Long Island

9h 05m2 stops Baltimore/Washington Orlando

10:55 am - 10:10 pmISP Islip Long Island-PWM Portland

11h 15m2 stops Baltimore/Washington Chicago Midway

$889Southwest

Sat, Sep 5 - Wed, Sep 9

6:38 pm - 5:10 pmPWM Portland-ISP Islip Long Island

22h 32m2 stops Tampa Wilmington New Hanover County

6:08 pm - 10:19 pmISP Islip Long Island-PWM Portland

28h 11m2 stops Myrtle Beach Intl Akron/Canton

$889Breeze Airways

Sat, Sep 5 - Wed, Sep 9

5:40 am - 12:05 pmPWM Portland-ISP Islip Long Island

6h 25m1 stop Baltimore/Washington

3:20 pm - 9:15 pmISP Islip Long Island-PWM Portland

5h 55m1 stop Baltimore/Washington

$910Southwest

Booking Insights

Price, demand and travel trends for Portland to Islip flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Portland to Islip with more confidence.

Airlines

Layovers

What is the cheapest airline to fly from Portland to Islip?

Breeze Airways ($433) and Southwest ($533) are the cheapest airlines to fly round-trip from Portland to Islip according to KAYAK data over the last 5 days.

Find deals

Cheapest flight	$165

Flight from Portland to Islip

When to book flights from Portland to Islip

Are your dates flexible? Find out the best times to travel from Portland to Islip based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which airports can I use when flying from Portland to Islip?
Flights from Portland to Islip usually depart from Portland (PWM) and arrive at Islip Long Island (ISP).
Which airports do connecting flights from Portland to Islip pass through?
Most connecting flights from Portland to Islip pass through Baltimore/Washington (BWI), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.
Do I need a passport to fly from Portland to Islip?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.
Have flight prices from Portland to Islip changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $392 to $1,471. That means the highest observed fare was about 4x higher than the lowest one.
How are flight prices from Portland to Islip looking right now?
One-way fares from Portland to Islip are currently higher than usual. Average one-way flight prices are about $272, which is 33% above the typical average for this route.
What car rental options are available at Islip Long Island Airport (ISP)?
Islip Long Island Airport (ISP) hosts 5 major car rental companies, with daily rates starting from around $36 for economy cars. Top options include:
· Budget
· Enterprise Rent-A-Car
· Avis
· National
· Empire Rent A Car

Everything you need to know for your flight from Portland to Islip

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Portland (PWM)

Islip (ISP)

PWM - ISP

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Everything you should know

Cheap Flights from Portland to Islip (PWM-ISP)

Recent round-trip flight deals from Portland to Islip

Recent one-way flight deals from Portland to Islip

Recent last minute flight deals from Portland to Islip

Price, demand and travel trends for Portland to Islip flights

What is the cheapest airline to fly from Portland to Islip?

What is the cheapest layover airport when flying from Portland to Islip?

When flying from Portland to Islip which airport offers the shortest layover?

Key details for Portland to Islip flights

Cheapest flight

When to book flights from Portland to Islip

Your Portland to Islip flight questions, answered

Everything you need to know for your flight from Portland to Islip

Information on your arrival and departure airports

Cabin class types available on flights from Portland to Islip

Complete your trip to Islip with a hotel stay or car rental

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