Question 1

How long does a flight from Islip to Washington, D.C. take?

Accepted Answer

Nonstop flights from Islip generally make it to Washington, D.C. in 1h 15m. The flying distance between the two cities is 246 miles. Visit our flight page for the latest deals!>/a>

Question 2

How many flights are there between Islip and Washington, D.C. per day?

Accepted Answer

Each day, there are 3 nonstop flights that take off from Islip and land in Washington, D.C., with an average flight time of 1h 15m. The most common departure time is 5:00 am and most flights take off in the morning. Each week, there are 21 flights and there are the same amount of flights each day (3). Visit our flight page for the latest deals!>/a>

Question 3

How many flights are there between Islip and Washington, D.C. per day?

Accepted Answer

Each day, there are 3 nonstop flights that take off from Islip and land in Washington, D.C., with an average flight time of 1h 15m. The most common departure time is 5:00 am and most flights take off in the morning. Each week, there are 21 flights and there are the same amount of flights each day (3). Visit our flight page for the latest deals!>/a>

Question 4

What is the cheapest flight from Islip to Washington, D.C.?

Accepted Answer

In the last 3 days, the lowest price for a flight from Islip to Washington, D.C. was $82 for a one-way ticket and $161 for a round-trip. <a href='/flight-routes/Islip-Long-Island-ISP/Washington-WAS'>Visit our flight page for the latest deals!>/a>

Question 5

Do I need a passport to fly between Islip and Washington, D.C.?

Accepted Answer

No, a passport isn't needed to fly from Islip to Washington, D.C.. However, local authorities might ask for an official ID. <a href='/flight-routes/Islip-Long-Island-ISP/Washington-WAS'>Visit our flight page for the latest deals!>/a>

Question 6

Which airports will I be using when flying from Islip to Washington, D.C.?

Accepted Answer

When flying out of Islip you will be using Islip Long Island. You will be landing at one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. <a href='/flight-routes/Islip-Long-Island-ISP/Washington-WAS'>Visit our flight page for the latest deals!>/a>

Question 7

What’s the earliest departure time from Islip to Washington, D.C.?

Accepted Answer

Early birds can take the earliest flight from Islip at 5:25 am and will be landing in Washington, D.C. at 6:40 am.

Question 8

What’s the latest departure time from Islip to Washington, D.C.?

Accepted Answer

If you prefer to fly at night, the latest flight from Islip to Washington, D.C. jets off at 6:30 pm and lands at 7:45 pm.

Question 9

Which airlines fly non-stop between Islip and Washington, D.C.?

Accepted Answer

There is just one airline that flies from Islip to Washington, D.C. direct and that is Southwest. The best round-trip deal found from Southwest for the route is $273.

Question 10

Which airlines fly non-stop between Islip and Washington, D.C.?

Accepted Answer

There is just one airline that flies from Islip to Washington, D.C. direct and that is Southwest. The best round-trip deal found from Southwest for the route is $273.

Question 11

Which airlines offer Wi-Fi service onboard planes from Islip to Washington, D.C.?

Accepted Answer

JetBlue, and Delta offer inflight Wi-Fi service on the Islip to Washington, D.C. flight route.

Question 12

Which aircraft models fly most regularly from Islip to Washington, D.C.?

Accepted Answer

The Airbus A320-100/200 is the aircraft model that flies most regularly on the Islip to Washington, D.C. flight route.

Question 13

On which days can I fly direct from Islip to Washington, D.C.?

Accepted Answer

There are nonstop flights from Islip to Washington, D.C. on a daily basis.

Question 14

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

Accepted Answer

The cheapest month for flights from Islip to Washington, D.C. is May, where tickets cost $296 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $766 and $766 respectively.

Question 15

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

Accepted Answer

The cheapest month for flights from Islip to Washington, D.C. is May, where tickets cost $296 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $766 and $766 respectively.

Question 16

How does KAYAK find such low prices on flights from Islip to Washington, D.C.?

Accepted Answer

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Islip to Washington, D.C.. <a href='/flight-routes/Islip-Long-Island-ISP/Washington-WAS'>Visit our flight page for the latest deals!>/a>

Question 17

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Islip to Washington, D.C.?

Accepted Answer

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Islip is likely to change within 7 days, so travelers know whether to wait or book now. <a href='/flight-routes/Islip-Long-Island-ISP/Washington-WAS'>Visit our flight page for the latest deals!>/a>

Question 18

What is the Hacker Fare option on flights from Islip to Washington, D.C.?

Accepted Answer

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. with an airline and back to Islip with another airline. <a href='/flight-routes/Islip-Long-Island-ISP/Washington-WAS'>Visit our flight page for the latest deals!>/a>

Question 19

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Islip to Washington, D.C.?

Accepted Answer

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. from Islip up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. <a href='/flight-routes/Islip-Long-Island-ISP/Washington-WAS'>Visit our flight page for the latest deals!>/a>

Question 20

Which cabin class options are there for flights between Islip and Washington, D.C.?

Accepted Answer

There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 21

Which cabin class options are there for flights between Islip and Washington, D.C.?

Accepted Answer

There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 22

Which airlines provide the cheapest flights from Islip to Washington, D.C.?

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from Islip to Washington, D.C. were found on Frontier ($161) and Southwest ($246).

Question 23

Which airlines provide the cheapest flights from Islip to Washington, D.C.?

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from Islip to Washington, D.C. were found on Frontier ($161) and Southwest ($246).

Question 24

What is the cheapest Islip to Washington, D.C. flight route?

Accepted Answer

The cheapest return flight from Islip to Washington, D.C. costs $211 on the route between Islip (ISP) and Baltimore (BWI). It is also the most popular route.

Question 25

What is the cheapest Islip to Washington, D.C. flight route?

Accepted Answer

The cheapest return flight from Islip to Washington, D.C. costs $211 on the route between Islip (ISP) and Baltimore (BWI). It is also the most popular route.

Question 26

Can I save money by flying with a layover from Islip to Washington, D.C.?

Accepted Answer

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $390 on average.

Question 27

Can I save money by flying with a layover from Islip to Washington, D.C.?

Accepted Answer

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $390 on average.

Question 28

What are the most popular airlines flying to Washington, D.C.?

Accepted Answer

The most popular airline among KAYAK users flying to Washington, D.C. is United Airlines, followed by Delta and American Airlines.

Low season	July
High season	March
Cheapest flight	$82

ISP - WAS

$82 Find Cheap Flights from Islip to Washington, D.C.

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C.

Cheap Flights from Islip to Washington, D.C. (ISP-WAS)

Recent round-trip flight deals from Islip to Washington, D.C.

Recent one-way flight deals from Islip to Washington, D.C.

Recent last minute flight deals from Islip to Washington, D.C.

Recent direct flight deals from Islip to Washington, D.C.

Everything you should know

KAYAK's insights & trends for Islip to Washington, D.C. flights

Get data-powered insights and trends into flights from Islip to Washington, D.C. to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Islip to Washington, D.C. flight route?

The cheapest return flight from Islip to Washington, D.C. costs $211 on the route between Islip (ISP) and Baltimore (BWI). It is also the most popular route.

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

The cheapest month for flights from Islip to Washington, D.C. is May, where tickets cost $296 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $766 and $766 respectively.

Can I save money by flying with a layover from Islip to Washington, D.C.?

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $390 on average.

Which airlines provide the cheapest flights from Islip to Washington, D.C.?

In the past 3 days, the cheapest round-trip tickets from Islip to Washington, D.C. were found on Frontier ($161) and Southwest ($246).

Which airlines fly non-stop between Islip and Washington, D.C.?

There is just one airline that flies from Islip to Washington, D.C. direct and that is Southwest. The best round-trip deal found from Southwest for the route is $273.

Which cabin class options are there for flights between Islip and Washington, D.C.?

There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How many flights are there between Islip and Washington, D.C. per day?

How long does a flight from Islip to Washington, D.C. take?

Nonstop flights from Islip generally make it to Washington, D.C. in 1h 15m. The flying distance between the two cities is 246 miles.

What’s the earliest departure time from Islip to Washington, D.C.?

Early birds can take the earliest flight from Islip at 5:25 am and will be landing in Washington, D.C. at 6:40 am.

What’s the latest departure time from Islip to Washington, D.C.?

If you prefer to fly at night, the latest flight from Islip to Washington, D.C. jets off at 6:30 pm and lands at 7:45 pm.

Good to know

When to book flights from Islip to Washington, D.C.

FAQs for booking flights from Islip to Washington, D.C.

What is the cheapest flight from Islip to Washington, D.C.?

In the last 3 days, the lowest price for a flight from Islip to Washington, D.C. was $82 for a one-way ticket and $161 for a round-trip.

Do I need a passport to fly between Islip and Washington, D.C.?

No, a passport isn't needed to fly from Islip to Washington, D.C.. However, local authorities might ask for an official ID.

Which airports will I be using when flying from Islip to Washington, D.C.?

When flying out of Islip you will be using Islip Long Island. You will be landing at one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

Which airlines offer Wi-Fi service onboard planes from Islip to Washington, D.C.?

JetBlue, and Delta offer inflight Wi-Fi service on the Islip to Washington, D.C. flight route.

Which aircraft models fly most regularly from Islip to Washington, D.C.?

The Airbus A320-100/200 is the aircraft model that flies most regularly on the Islip to Washington, D.C. flight route.

On which days can I fly direct from Islip to Washington, D.C.?

There are nonstop flights from Islip to Washington, D.C. on a daily basis.

How does KAYAK find such low prices on flights from Islip to Washington, D.C.?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Islip to Washington, D.C..

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Islip to Washington, D.C.?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Islip is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Islip to Washington, D.C.?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. with an airline and back to Islip with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Islip to Washington, D.C.?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. from Islip up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Islip to Washington, D.C.

Reviews of the top airline flying from Islip to Washington, D.C.

Everything you need to know for your flight from Islip to Washington, D.C.

Information on your arrival and departure airports

Cabin class types available on flights from Islip to Washington, D.C.

Complete your trip to Washington, D.C. with a hotel stay or car rental

Find direct flights to and from Islip and Washington, D.C.

Flights to other popular destinations

Flights from domestic origins to Washington, D.C.

Choose which airport to fly into in Washington, D.C.

Find deals for your return flight