Question 1

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

Accepted Answer

Direct flights cover the 246 miles separating Washington, D.C. to Islip in about 1h 05m. Visit our flight page for the latest deals!>/a>

Question 2

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

Accepted Answer

Each day, there are 3 nonstop flights that take off from Washington, D.C. and land in Islip, with an average flight time of 1h 10m. The most common departure time is 3:00 pm and most flights take off in the afternoon. 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 Washington, D.C. and Islip per day?

Accepted Answer

Each day, there are 3 nonstop flights that take off from Washington, D.C. and land in Islip, with an average flight time of 1h 10m. The most common departure time is 3:00 pm and most flights take off in the afternoon. 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 Washington, D.C. to Islip?

Accepted Answer

In the last 3 days, the lowest price for a flight from Washington, D.C. to Islip was $74 for a one-way ticket and $152 for a round-trip. <a href='/flight-routes/Washington-WAS/Islip-Long-Island-ISP'>Visit our flight page for the latest deals!>/a>

Question 5

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

Accepted Answer

A passport is not required to fly from Washington, D.C. to Islip. <a href='/flight-routes/Washington-WAS/Islip-Long-Island-ISP'>Visit our flight page for the latest deals!>/a>

Question 6

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

Accepted Answer

Washington, D.C. is served by 2 major airports and there is only 1 main airport in Islip. You will leave Washington, D.C. from one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be arriving at Islip Long Island. <a href='/flight-routes/Washington-WAS/Islip-Long-Island-ISP'>Visit our flight page for the latest deals!>/a>

Question 7

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

Accepted Answer

Early birds can take the earliest flight from Washington, D.C. at 8:55 am and will be landing in Islip at 10:10 am.

Question 8

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

Accepted Answer

If you prefer to fly at night, the latest flight from Washington, D.C. to Islip jets off at 10:45 pm and lands at 11:55 pm.

Question 9

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

Accepted Answer

There is just one airline that flies from Washington, D.C. to Islip direct and that is Southwest. The best round-trip deal found from Southwest for the route is $231.

Question 10

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

Accepted Answer

There is just one airline that flies from Washington, D.C. to Islip direct and that is Southwest. The best round-trip deal found from Southwest for the route is $231.

Question 11

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

Accepted Answer

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

Question 12

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

Accepted Answer

The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Washington, D.C. to Islip flight route.

Question 13

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

Accepted Answer

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

Question 14

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

Accepted Answer

The cheapest month for flights from Washington, D.C. to Islip is April, where tickets cost $278 (return) on average. On the other hand, the most expensive months are November and September, where the average cost of round-trip tickets is $561 and $546 respectively.

Question 15

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

Accepted Answer

The cheapest month for flights from Washington, D.C. to Islip is April, where tickets cost $278 (return) on average. On the other hand, the most expensive months are November and September, where the average cost of round-trip tickets is $561 and $546 respectively.

Question 16

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

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 Washington, D.C. to Islip. <a href='/flight-routes/Washington-WAS/Islip-Long-Island-ISP'>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 Washington, D.C. to Islip?

Accepted Answer

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

Question 18

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

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 Islip with an airline and back to Washington, D.C. with another airline. <a href='/flight-routes/Washington-WAS/Islip-Long-Island-ISP'>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 Washington, D.C. to Islip?

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 Islip from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. <a href='/flight-routes/Washington-WAS/Islip-Long-Island-ISP'>Visit our flight page for the latest deals!>/a>

Question 20

What is the cheapest layover airport when flying from Washington, D.C. to Islip?

Accepted Answer

Flights via Tampa (TPA) offer the most affordable fares, with an average round-trip price of $340.

Question 21

What is the most popular layover airport when flying from Washington, D.C. to Islip?

Accepted Answer

Tampa (TPA) is the top choice – 50% of KAYAK users who clicked on 1-stop flights from Washington, D.C. to Islip picked an itinerary connecting there.

Question 22

Which layover airport has the quickest connection when flying from Washington, D.C. to Islip?

Accepted Answer

If you prefer a quick connection, Orlando (MCO) often has the shortest layovers from Washington, D.C. to Islip, with an average of 1h 10m.

Question 23

Which layover airport offers the shortest total travel time from Washington, D.C. to Islip?

Accepted Answer

Consider flying via Tampa (TPA) for the shortest journey. The average one-way travel time for flights connecting there is 6h 15m.

Question 24

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

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 25

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

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 26

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

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from Washington, D.C. to Islip were found on Frontier ($152) and Southwest ($272).

Question 27

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

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from Washington, D.C. to Islip were found on Frontier ($152) and Southwest ($272).

Question 28

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

Accepted Answer

The cheapest return flight from Washington, D.C. to Islip costs $310 on the route between Baltimore (BWI) and Islip (ISP). It is also the most popular route.

Question 29

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

Accepted Answer

The cheapest return flight from Washington, D.C. to Islip costs $310 on the route between Baltimore (BWI) and Islip (ISP). It is also the most popular route.

Question 30

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

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 $335 on average.

Question 31

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

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 $335 on average.

Question 32

What are the most popular airlines flying to Long Island?

Accepted Answer

The most popular airline among KAYAK users flying to Long Island is United Airlines, followed by Delta and American Airlines.

Low season	November
High season	July
Cheapest flight	$74

WAS - ISP

$74 Find Cheap Flights from Washington, D.C. to Islip

KAYAK searches hundreds of travel sites at once for deals on flights to Islip

Everything you should know

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

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

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

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

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

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

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

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

The cheapest return flight from Washington, D.C. to Islip costs $310 on the route between Baltimore (BWI) and Islip (ISP). It is also the most popular route.

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

The cheapest month for flights from Washington, D.C. to Islip is April, where tickets cost $278 (return) on average. On the other hand, the most expensive months are November and September, where the average cost of round-trip tickets is $561 and $546 respectively.

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

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 $335 on average.

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

In the past 3 days, the cheapest round-trip tickets from Washington, D.C. to Islip were found on Frontier ($152) and Southwest ($272).

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

There is just one airline that flies from Washington, D.C. to Islip direct and that is Southwest. The best round-trip deal found from Southwest for the route is $231.

What is the most popular layover airport when flying from Washington, D.C. to Islip?

Tampa (TPA) is the top choice – 50% of KAYAK users who clicked on 1-stop flights from Washington, D.C. to Islip picked an itinerary connecting there.

What is the cheapest layover airport when flying from Washington, D.C. to Islip?

Flights via Tampa (TPA) offer the most affordable fares, with an average round-trip price of $340.

Which layover airport offers the shortest total travel time from Washington, D.C. to Islip?

Consider flying via Tampa (TPA) for the shortest journey. The average one-way travel time for flights connecting there is 6h 15m.

Which layover airport has the quickest connection when flying from Washington, D.C. to Islip?

If you prefer a quick connection, Orlando (MCO) often has the shortest layovers from Washington, D.C. to Islip, with an average of 1h 10m.

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

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 Washington, D.C. and Islip per day?

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

Direct flights cover the 246 miles separating Washington, D.C. to Islip in about 1h 05m.

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

Early birds can take the earliest flight from Washington, D.C. at 8:55 am and will be landing in Islip at 10:10 am.

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

If you prefer to fly at night, the latest flight from Washington, D.C. to Islip jets off at 10:45 pm and lands at 11:55 pm.

Good to know

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

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

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

In the last 3 days, the lowest price for a flight from Washington, D.C. to Islip was $74 for a one-way ticket and $152 for a round-trip.

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

A passport is not required to fly from Washington, D.C. to Islip.

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

Washington, D.C. is served by 2 major airports and there is only 1 main airport in Islip. You will leave Washington, D.C. from one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be arriving at Islip Long Island.

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

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

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

The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Washington, D.C. to Islip flight route.

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

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

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

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 Washington, D.C. to Islip.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Washington, D.C. 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 Washington, D.C. to Islip?

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 Islip with an airline and back to Washington, D.C. with another airline.

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

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 Islip from Washington, D.C. 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 Washington, D.C. to Islip

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

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

Information on your arrival and departure airports

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

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

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

Flights to other popular destinations

Flights from domestic origins to Islip

Choose which airport to fly into in Islip

Find deals for your return flight