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Islip

$66+ Cheap flights from District of Columbia to Islip, NY (ISP)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — ISP
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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Cheap flight deals from District of Columbia to Islip

Discover tips and strategies to find the most affordable flight options for your journey from District of Columbia (USDC) to Islip (ISP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$120
(Booking.com)

One-way from

$66
(Booking.com)

Popular in

December

Cheapest in

September

Average price

$270
Provider with most accurate pricing for Washington, D.C. (WAS)-New York (NYC) flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-New York (NYC) flights.
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From District of Columbia to Islip Long Island
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One-way flight from District of Columbia to Islip Long Island
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Highest demand for flights based on searches. 13% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Find flight deals from District of Columbia to Islip

Cheapest flights from District of Columbia to Islip
Explore the most affordable flight options available from District of Columbia to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 30, 2025.

This Booking.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/16:03 pmIAD - ISP
1 stop18h 08mFrontier
Tue 3/49:41 amISP - IAD
1 stop7h 14mFrontier
Deal found 1/30$120
This JetBlue Airways deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/54:15 pmDCA - ISP
1 stop4h 53mJetBlue
Sun 6/86:00 amISP - DCA
1 stop3h 40mJetBlue
Deal found 1/30$256
This Southwest deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/31:20 pmDCA - ISP
2 stops9h 10mSouthwest
Tue 4/87:30 amISP - DCA
1 stop9h 25mSouthwest
Deal found 1/29$285
This Trip.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/67:00 amDCA - ISP
2 stops25h 10mFrontier
Wed 4/99:07 amISP - DCA
2 stops26h 57mFrontier
Deal found 1/29$650
This Mytrip deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/288:25 amIAD - ISP
3 stops29h 30mMultiple Airlines
Fri 3/79:50 amISP - IAD
3 stops21h 30mMultiple Airlines
Deal found 1/29$844

Find flights from District of Columbia to Islip within your budget

Customize your flight search to find flights from District of Columbia to Islip 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, Cheapflights users made 2,558,603 searches. Data last updated January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Sat 3/1

6:03 pm-7:52 am

1 stop13h 49m

Islip Long Island

Tue 3/4

9:33 pm-5:13 pm

1 stop19h 40m

$120

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Thu 6/5

4:15 pm-9:08 pm

1 stop4h 53m

Islip Long Island

Sun 6/8

6:00 am-9:40 am

1 stop3h 40m

$256

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Thu 4/3

1:20 pm-10:30 pm

2 stops9h 10m

Islip Long Island

Tue 4/8

7:30 am-4:55 pm

1 stop9h 25m

$285

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Sun 4/6

7:00 am-8:10 am

2 stops25h 10m

Islip Long Island

Wed 4/9

9:07 am-12:04 pm

2 stops26h 57m

$650

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Fri 2/28

8:25 am-1:55 pm

3 stops29h 30m

Islip Long Island

Fri 3/7

9:50 am-7:20 am

3 stops21h 30m

$844

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Wed 2/26

6:03 pm-8:07 am

1 stop14h 04m

$66

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Thu 3/6

1:20 pm-10:30 pm

2 stops9h 10m

$153

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Thu 6/26

3:00 pm-9:15 pm

1 stop6h 15m

$198

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Sun 6/1

8:25 am-11:02 am

1 stop26h 37m

$505

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Best time to book a flight from District of Columbia to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from District of Columbia 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.

Travel insights for flights from District of Columbia to Islip

Get recent, data-driven insights about flights from District of Columbia to Islip including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from District of Columbia to Islip, New York?

Currently, January is the cheapest month in which you can book a flight from District of Columbia to Islip, New York (average of $108). Flying from District of Columbia to Islip, New York in February is currently the most expensive (average of $220). 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.

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

Find hourly flight availability from District of Columbia to Islip. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from District of Columbia to Islip, New York as you normally would.

Rainfall in Islip by month

Plan your trip to Islip by taking into account the average rainfall totals by month.

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.

Temperature in Islip by month

Plan your trip to Islip by taking into account the average temperature totals by month.

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).

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 January 30, 2025.
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,585 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Breeze Airways
8.1
Very good
144 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

JetBlue
7.4
Good
3,156 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Frontier
6.0
Okay
3,424 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia 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 District of Columbia?

    If you book a flight to Islip from District of Columbia, you will be flying to Long Island, which is the city’s only airport. Islip Long Island (ISP) is located 7.2 mi from the center of Islip.

  • How popular is this District of Columbia to Islip, New York flight route?

    Within the past month, 2 users have taken a look at flights from District of Columbia to Islip Long Island.

  • What are the cheapest airlines to fly from District of Columbia to Islip, New York one-way?

    One-way options have recently been found by users for as low as $66 on Frontier. Other airlines that offer cheap prices include Southwest from $153 and JetBlue from $198 one-way.

  • What are the cheapest flights from District of Columbia to Islip, New York?

    On average you can expect to pay $336 for a flight from District of Columbia to Islip, New York. The cheapest flight overall is $159 while the most popular route, (Washington, D.C. Reagan-National - Islip Long Island) is currently priced at $256.

  • Can I find deals for flights from District of Columbia to Islip that include hotel bookings?

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

  • How can I find direct flights from District of Columbia to Islip?

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

  • Can I find deals for business class flights from District of Columbia to Islip?

    Yes. Cheapflights offers flight deals from District of Columbia 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 District of Columbia to Islip, New York?

    Currently, January is the cheapest month in which you can book a flight from District of Columbia to Islip, New York (average of $108). Flying from District of Columbia to Islip, New York in February is currently the most expensive (average of $220). 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

Traveling to a place near District of Columbia?

Book flights to District of Columbia if you plan to visit one of these locations
Southampton
Riverhead

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Alternative routes for District of Columbia to Islip

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Top airline flying from District of Columbia to Islip

Discover the top airline that operate flights from District of Columbia to Islip. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$233Average$376FlexibilityNo cancel feeOn-time63%
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