Question 1

What is the cheapest airline to fly from Islip, New York to Washington, D.C. round-trip?

Accepted Answer

According to our current data, Frontier ($147), offers the cheapest pricing from Islip, New York to Washington, D.C..

Question 2

E

Accepted Answer

Currently, September is the cheapest month in which you can book a flight from Islip, New York to Washington, D.C. (average of $281). Flying from Islip, New York to Washington, D.C. in June is currently the most expensive (average of $398). 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.

January

$308

February

$303

March

$358

April

$337

May

$337

June

$398

July

$378

August

$296

September

$281

October

$303

November

$328

December

$291

Question 3

When is the cheapest time to fly from Islip, New York to Washington, D.C.?

Accepted Answer

Travelers seeking maximum savings on their Islip, New York to Washington, D.C. flight should consider departing on Monday mornings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 4

How recently were the Islip, New York to Washington, D.C. flight deals updated?

Accepted Answer

The Islip, New York to Washington, D.C. flight deals you see on this page were last updated on 5/5.

Question 5

Can I find flights from Islip, New York to Washington, D.C. for under $200 on Cheapflights?

Accepted Answer

Yes, there are multiple flights from Islip, New York to Washington, D.C. for under $200. The cheapest flight booked recently is on Frontier for just $147, but on average you can expect to pay $266.

Question 6

Are there last-minute flights available from Islip, New York to Washington, D.C. for under $200?

Accepted Answer

There are currently 4+ open flights from Islip, New York to Washington, D.C. within the next 7 days for less than $200.

Question 7

How far in advance should I book a flight from Islip, New York to Washington, D.C.?

Accepted Answer

To save on the cost of your flight from Islip, New York to Washington, D.C., book at least 30 days before your planned departure. Booking around this time can save you about 86% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $228 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $308.

Question 8

What is the cheapest month to fly from Islip, New York to Washington, D.C.?

Accepted Answer

February is one of the best times of the year to fly to Washington, D.C. from Islip, New York. Prices for February average $200 per person but you can even find prices for as low as $108. The most expensive prices can be found in the month of December. Opting for a February flight can save you 16% on your journey compared to booking in December

Question 9

When is the cheapest time to fly from Islip, New York to Washington, D.C. (ISP - WAS)?

Accepted Answer

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

Question 10

What airport do you fly from for flights from Islip to Washington, D.C.?

Accepted Answer

Located just 7.2 mi from the city center, Islip Long Island is the airport most travelers will use when flying to Washington, D.C. from Islip. Booking flights from Long Island (ISP) to Washington, D.C. should be relatively easy as there are 0 daily outbound flights to Washington, D.C. from 0 different airlines.

Question 11

What does ISP to IAD mean?

Accepted Answer

ISP stands for Islip Long Island Airport, while IAD stands for Washington, D.C. Dulles Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Ready for more IATA code knowledge? These are related airports for your current travel destination: Baltimore/Washington Airport (BWI), Washington, D.C. Reagan-National Airport (DCA).

Question 12

Can I find deals for flights from Islip to Washington, D.C. that include extra baggage allowance?

Accepted Answer

The amount of baggage you can bring on your Islip to Washington, D.C. flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Question 13

Can I find deals on flights from Islip to Washington, D.C. with specific airlines?

Accepted Answer

Yes, Cheapflights allows you to browse and filter Islip to Washington, D.C. flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

Question 14

Can I find deals for flights from Islip to Washington, D.C. that include hotel bookings?

Accepted Answer

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

Question 15

How can I find direct flights from Islip to Washington, D.C.?

Accepted Answer

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

Question 16

Can I find deals for business class flights from Islip to Washington, D.C.?

Accepted Answer

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

Question 17

Can I find deals for flights from Islip to Washington, D.C. that allow pets onboard?

Accepted Answer

Many airlines flying from Islip to Washington, D.C. offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Question 18

Can I find deals on last-minute flights from Islip to Washington, D.C.?

Accepted Answer

Yes, you can often find last-minute deals on Islip to Washington, D.C. flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

Question 19

How does Cheapflights help users find flights from Islip to Washington, D.C.?

Accepted Answer

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Washington, D.C. from Islip today with Cheapflights!

Question 20

Why should you use Cheapflights to find cheap flight tickets from Islip to Washington, D.C.?

Accepted Answer

Millions of users choose and trust Cheapflights to book the best flight deals from Islip to Washington, D.C. for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Question 21

Can Cheapflights find flights from Islip to Washington, D.C. with no change fees?

Accepted Answer

Certainly. Search results for flights to Washington, D.C. from Islip shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Question 22

Can Cheapflights notify me if prices for flights from Islip to Washington, D.C. become cheaper?

Accepted Answer

Yes! Start tracking prices for Islip to Washington, D.C. flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

Round-trip from	$234
One-way from	$89

30%of flight departures	Early morningMidnight to 6 am
45%of flight departures	Morning6 am to noon
25%of flight departures	AfternoonNoon to 6 pm
0%of flight departures	Evening6 pm to midnight

Cheap flights from Islip (ISP) to Washington, D.C. (WAS) from $89

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.

Cheap flight deals from Islip to Washington, D.C.

Round-trip from

One-way from

How far in advance should I book a flight from Islip, New York to Washington, D.C.?

What is the cheapest month to fly from Islip, New York to Washington, D.C.?

When is the cheapest time to fly from Islip, New York to Washington, D.C. (ISP - WAS)?

Cheap Frontier flights from Islip to Washington, D.C.

Cheap Islip to Washington, D.C. flights in May & June 2024

Find cheap flight options from Islip to Washington, D.C. specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,795,183 searches. Prices were last updated on May 5, 2024.

Islip to Washington, D.C. 2024 flight deals

Discover exclusive flight deals for travel between Islip and Washington, D.C. in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,795,183 searches. Data last updated May 5, 2024.

Islip to Washington, D.C. flights leaving soon

One-way flights to Washington, D.C. from Islip

Find flights from Islip to Washington, D.C. within your budget

When is the cheapest time to fly from Islip, New York to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from Islip to Washington, D.C.. Price data was last updated on April 28, 2024.

Average price of flights to Washington, D.C. by month

Plan your trip from Islip to Washington, D.C. by taking into account the cheapest months to travel. The average price of a one-way flight from Islip to Washington, D.C. is currently $235 while a round-trip flight costs $246. Price data was last updated on April 28, 2024.

Temperature and rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature and rainfall totals by month.

Reviews of airlines servicing Washington, D.C.

Related info for your journey

Find useful and relevant information for your journey from Islip to Washington, D.C.. 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 from for flights from Islip to Washington, D.C.?

Can I find flights from Islip, New York to Washington, D.C. for under $200 on Cheapflights?

Are there last-minute flights available from Islip, New York to Washington, D.C. for under $200?

What is the cheapest airline to fly from Islip, New York to Washington, D.C. round-trip?

What does ISP to IAD mean?

Can I find deals for flights from Islip to Washington, D.C. that include extra baggage allowance?

Can I find deals on flights from Islip to Washington, D.C. with specific airlines?

Can I find deals for flights from Islip to Washington, D.C. that include hotel bookings?

How can I find direct flights from Islip to Washington, D.C.?

Can I find deals for business class flights from Islip to Washington, D.C.?

Can I find deals for flights from Islip to Washington, D.C. that allow pets onboard?

Can I find deals on last-minute flights from Islip to Washington, D.C.?

How recently were the Islip, New York to Washington, D.C. flight deals updated?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Islip to Washington, D.C.See prices for flight routes from nearby airports that may be better suited for you.

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

Popular flight searches

Check out other popular destinations found by fellow travelers in 2024

Search flights from Islip to Washington, D.C. by cabin class

Find flights from Islip to Washington, D.C., based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Islip to Washington, D.C.

Find hourly flight availability from Islip to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 5, 2024.

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Islip to Washington, D.C.?

Why should you use Cheapflights to find cheap flight tickets from Islip to Washington, D.C.?

Can Cheapflights find flights from Islip to Washington, D.C. with no change fees?

Can Cheapflights notify me if prices for flights from Islip to Washington, D.C. become cheaper?

100% Free

Book with Flexibility

Travel Smart

Alternative routes for Islip to Washington, D.C.
See prices for flight routes from nearby airports that may be better suited for you.