In terms of precipitation, rainfall in Islip, New York ranges from 3.3 - 4.4 inches per month. March is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Islip, New York when rainfall is around 3.3 in.

If weather is an important factor for your trip to Islip, New York, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

What are the most popular routes from Oregon to Islip, New York?

While some choose either Boise Air Term. Gowen Fld - Islip Long Island or Bend/Redmond - Islip Long Island, Portland - Islip Long Island is the most popular route from Oregon to Islip, New York.

How far in advance should I book a flight from Oregon to Islip, New York?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 53 days in advance, which can save you up to 94% on flights from Oregon to Islip, New York compared to booking the week you need them. Waiting 53 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $409. For sooner than that we have options available in the next 3 days from $597.

What is the cheapest month to fly from Oregon to Islip, New York?

Flights from Oregon to Islip, New York lean towards being more expensive in December. Prices are generally better when you fly from Oregon to Islip, New York in January, with the cheapest ticket starting at $138.

What is the cheapest time of day to fly from OR to ISP?

When flying from Oregon to Islip, New York, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to Islip from Oregon?

Islip Long Island (ISP), located 7.2 mi from the city center, is the airport you fly into when you book flights from Oregon to Islip.

Can I find deals for flights from Oregon to Islip that include hotel bookings?

Yes. In addition to deals on Oregon to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Oregon to Islip?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oregon to Islip.

Can I find deals for business class flights from Oregon to Islip?

Yes. Cheapflights offers flight deals from Oregon to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$439+ Flights from Oregon to Islip, NY

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Cheap flight deals from Oregon to Islip

Round-trip from	$439 (Southwest)
Popular in	December
Cheapest in	January
Average price	$398

From Oregon to Islip Long Island

Search Deals

Highest demand for flights based on searches. 6% potential increase in price ($27 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from Oregon to Islip

Cheapest flights from Oregon to Islip
Explore the most affordable flight options available from Oregon to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

sáb. 8/235:35 amPDX - ISP

2 stops13h 05mSouthwest

vie. 8/293:05 pmISP - PDX

2 stops11h 00mSouthwest

Deal found 7/31

$439

mar. 8/1911:59 pmPDX - ISP

2 stops10h 25mMultiple Airlines

mar. 8/267:30 amISP - PDX

3 stops16h 31mMultiple Airlines

Deal found 7/31

$1,005

vie. 8/18:46 pmBOI - ISP

2 stops16h 35mMultiple Airlines

lun. 8/42:19 pmISP - BOI

2 stops26h 45mMultiple Airlines

Deal found 7/30

$1,555

Best flights from Oregon to Islip
Discover carefully curated flight deals from Oregon to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 31, 2025.

sáb. 8/235:35 amPDX - ISP

2 stops13h 05mSouthwest

vie. 8/293:05 pmISP - PDX

2 stops11h 00mSouthwest

Deal found 7/31

$439

mar. 8/1911:59 pmPDX - ISP

2 stops10h 25mMultiple Airlines

mar. 8/267:30 amISP - PDX

3 stops16h 31mMultiple Airlines

Deal found 7/31

$1,005

Last-minute flights from Oregon to Islip
Discover last-minute flight deals from Oregon to Islip. Data last updated julio 31, 2025 and is based on user searches.

vie. 8/18:46 pmBOI - ISP

2 stops16h 35mMultiple Airlines

lun. 8/42:19 pmISP - BOI

2 stops26h 45mMultiple Airlines

Deal found 7/30

$1,555

mar. 8/1911:59 pmPDX - ISP

2 stops10h 25mMultiple Airlines

mar. 8/267:30 amISP - PDX

3 stops16h 31mMultiple Airlines

Deal found 7/31

$1,005

sáb. 8/235:35 amPDX - ISP

2 stops13h 05mSouthwest

vie. 8/293:05 pmISP - PDX

2 stops11h 00mSouthwest

Deal found 7/31

$439

Fly from

Fly to

Route

Depart

Return

Price

PortlandIslip

PDX - ISP

PDXISP

Portland

sáb. 8/23

5:35 am-9:40 pm

2 stops13h 05m

Islip Long Island

vie. 8/29

3:05 pm-11:05 pm

2 stops11h 00m

$439

PortlandIslip

PDX - ISP

PDXISP

Portland

mar. 8/19

11:59 pm-1:24 pm

2 stops10h 25m

Islip Long Island

mar. 8/26

7:30 am-9:01 pm

3 stops16h 31m

$1,005

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Best time to book a flight from Oregon to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Oregon with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Oregon to Islip

What is the cheapest month to book a flight from Oregon to Islip, New York?

Currently, January is the cheapest month in which you can book a flight from Oregon to Islip, New York (average of $108). Flying from Oregon to Islip, New York in November is currently the most expensive (average of $213). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Islip

Peruse reviews from past customers who have flown with Southwest from Oregon to Islip to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Southwest

8.0

Very good

4,246 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Related info for your journey

What airport do you fly into for flights to Islip from Oregon?
Islip Long Island (ISP), located 7.2 mi from the city center, is the airport you fly into when you book flights from Oregon to Islip.
What are the most popular routes from Oregon to Islip, New York?
While some choose either Boise Air Term. Gowen Fld - Islip Long Island or Bend/Redmond - Islip Long Island, Portland - Islip Long Island is the most popular route from Oregon to Islip, New York.
Can I find deals for flights from Oregon to Islip that include hotel bookings?
Yes. In addition to deals on Oregon to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Oregon to Islip?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oregon to Islip.
Can I find deals for business class flights from Oregon to Islip?
Yes. Cheapflights offers flight deals from Oregon to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Oregon to Islip, New York?
Currently, January is the cheapest month in which you can book a flight from Oregon to Islip, New York (average of $108). Flying from Oregon to Islip, New York in November is currently the most expensive (average of $213). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Riverhead

Southampton

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Top airline flying from Oregon to Islip

Airline	Cheapest	Average	Flexibility	On-time
Southwest	Cheapest$361	Average$437	FlexibilityNo cancel fee	On-time63%

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$439+ Cheap flights from Oregon to Islip, NY (ISP)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Oregon to Islip with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Oregon to Islip

Keep the following information in mind while searching for Oregon to Islip flight deals. Data was last updated julio 31, 2025.

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Oregon to Islip

Cheapest flights from Oregon to IslipExplore the most affordable flight options available from Oregon to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

Explore the most affordable flight options available from Oregon to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Oregon to Islip that are best for you.

Best time to book a flight from Oregon to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Oregon with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Oregon to Islip

What is the cheapest month to book a flight from Oregon to Islip, New York?

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Islip. Reviews last updated julio 31, 2025.

Peruse reviews from past customers who have flown with Southwest from Oregon to Islip to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Oregon to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Islip from Oregon?

What are the most popular routes from Oregon to Islip, New York?

Can I find deals for flights from Oregon to Islip that include hotel bookings?

How can I find direct flights from Oregon to Islip?

Can I find deals for business class flights from Oregon to Islip?

What is the cheapest month to book a flight from Oregon to Islip, New York?

Traveling to a place near Islip?

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Alternative routes for Oregon to Islip

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Oregon to Islip

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Book with Flexibility

Travel Smart

Cheapest flights from Oregon to Islip
Explore the most affordable flight options available from Oregon to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.