Cheap flights from Dulles Intl to Islip (IAD - ISP)

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How to find the cheapest flight from
Dulles Intl (IAD) to Islip (ISP)

All the information you need to plan the best IAD to ISP flight in 2022: compare Dulles Intl to Islip flight prices with the expected peak season, weather and rainfall in Islip.
How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Islip, New York?

To save up to 93% on this flight, we recommend booking at least 38 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Washington, D.C. Dulles Intl Airport to Islip, New York from $223 1-2 weeks out and tickets from $313 for flights departing within the next 72 hours.

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

When flying from Washington, D.C. Dulles Intl Airport 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.

Cheap flights from Dulles Intl to Islip in June, July 2022

The best prices found for IAD to ISP flights for June, July
6 Jul - 14 Jul
$277pp
IAD
Washington, D.C. Dulles Intl
American Airlines
   
2 STOPS
ISP
Islip Long Island
ISP
Islip Long Island
American Airlines
   
2 STOPS
IAD
Washington, D.C. Dulles Intl
9 Jul - 11 Jul
$284pp
IAD
Washington, D.C. Dulles Intl
American Airlines
   
2 STOPS
ISP
Islip Long Island
ISP
Islip Long Island
American Airlines
   
2 STOPS
IAD
Washington, D.C. Dulles Intl
6 Jul - 11 Jul
$303pp
IAD
Washington, D.C. Dulles Intl
American Airlines
   
2 STOPS
ISP
Islip Long Island
ISP
Islip Long Island
American Airlines
   
2 STOPS
IAD
Washington, D.C. Dulles Intl

Washington, D.C. Dulles Intl to Islip 2022 flight deals

Cheap flights to Islip from Dulles Intl found for this year
16 Aug - 19 Aug
$218pp
IAD
Washington, D.C. Dulles Intl
American Airlines
   
2 STOPS
ISP
Islip Long Island
ISP
Islip Long Island
American Airlines
   
2 STOPS
IAD
Washington, D.C. Dulles Intl
15 Aug - 19 Aug
$273pp
IAD
Washington, D.C. Dulles Intl
American Airlines
   
2 STOPS
ISP
Islip Long Island
ISP
Islip Long Island
American Airlines
   
2 STOPS
IAD
Washington, D.C. Dulles Intl
6 Jul - 14 Jul
$277pp
IAD
Washington, D.C. Dulles Intl
American Airlines
   
2 STOPS
ISP
Islip Long Island
ISP
Islip Long Island
American Airlines
   
2 STOPS
IAD
Washington, D.C. Dulles Intl

Non-stop flights to Islip from Dulles Intl

Save time with Dulles Intl to Islip direct flight deals
27 Jul - 3 Aug
$3,115pp
IAD
Washington, D.C. Dulles Intl
Linear Air Taxi
Non-Stop
ISP
Islip Long Island
ISP
Islip Long Island
Linear Air Taxi
Non-Stop
IAD
Washington, D.C. Dulles Intl
1 Sep - 6 Sep
$3,133pp
IAD
Washington, D.C. Dulles Intl
Linear Air Taxi
Non-Stop
ISP
Islip Long Island
ISP
Islip Long Island
Linear Air Taxi
Non-Stop
IAD
Washington, D.C. Dulles Intl
11 Jul - 13 Jul
$6,490pp
IAD
Washington, D.C. Dulles Intl
Linear Air Taxi
Non-Stop
ISP
Islip Long Island
ISP
Islip Long Island
Linear Air Taxi
Non-Stop
IAD
Washington, D.C. Dulles Intl

Last minute flights from Dulles Intl to Islip

Late deals on round-trip flights to Islip from Dulles Intl, departing today and this week
6 Jul - 14 Jul
$277pp
IAD
Washington, D.C. Dulles Intl
American Airlines
   
2 STOPS
ISP
Islip Long Island
ISP
Islip Long Island
American Airlines
   
2 STOPS
IAD
Washington, D.C. Dulles Intl
9 Jul - 11 Jul
$284pp
IAD
Washington, D.C. Dulles Intl
American Airlines
   
2 STOPS
ISP
Islip Long Island
ISP
Islip Long Island
American Airlines
   
2 STOPS
IAD
Washington, D.C. Dulles Intl
6 Jul - 11 Jul
$303pp
IAD
Washington, D.C. Dulles Intl
American Airlines
   
2 STOPS
ISP
Islip Long Island
ISP
Islip Long Island
American Airlines
   
2 STOPS
IAD
Washington, D.C. Dulles Intl

One-way flights to Long Island from Washington, D.C. Dulles Intl

The cheapest one-way flights from Dulles Intl to Islip
1:35 pm - 7:30 am
Multiple Airlines
3 Stops
41h 55m
IAD - ISP
Multiple Airlines
$265
Kiwi.com
2:00 am - 5:55 pm
American Airlines
3 Stops
15h 55m
IAD - ISP
American Airlines
6:15 am - 12:57 pm
Linear Air Taxi
1 Stop
6h 42m
IAD - ISP
Linear Air Taxi
$3,272
Priceline

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Dulles Intl</span> to <span class="emphasized">Islip</span> flights.

Flight FAQs

From Dulles Intl to Islip

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

Located just 7.2 mi from the city center, Islip Long Island is the airport most travelers will use when flying to Islip from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Long Island (ISP) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 1 airline.

Which airlines flying from Washington, D.C. Dulles Intl to Islip Long Island have flexible changes due to COVID-19?

Some of our airline partners flying from Washington, D.C. Dulles Intl to Islip Long Island have new flexible policies in place due to COVID-19. Linear Air Taxi is one of the carriers where you may find flexible change policies. You can use our site to filter for airlines like Linear Air Taxi with this kind of flexibility.

Can I find flights from Washington, D.C. Dulles Intl Airport to Islip, New York for under $300 on Cheapflights?

Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to Islip, New York for under $300. The cheapest flight booked recently is on American Airlines for just $218, but on average you can expect to pay $374.

Are there nonstop flights from Washington, D.C. Dulles Intl Airport to Islip, New York for under $3,200 on Cheapflights?

Cheapflights has at least 5 direct flights from Washington, D.C. Dulles Intl Airport to Islip, New York under $3,200. A good price for a nonstop flight from Washington, D.C. Dulles Intl Airport to Islip, New York is less than $5,154.

Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to Islip, New York for under $300?

There are currently 20+ open flights from Washington, D.C. Dulles Intl Airport to Islip, New York within the next 7 days for less than $300.

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Islip, New York?

Looking at all options, your cheapest flight can be booked for $218. While the most popular route (Washington, D.C. Dulles Intl - Islip Long Island) can be booked for $312 on average our data indicates $365 when flying from Washington, D.C. Dulles Intl Airport to Islip, New York.

COVID Restrictions

View COVID Travel Restrictions for Islip, NY

Do I need a COVID test to fly to Islip from Dulles Intl?

Information is based on travel restrictions for travel to Islip Long Island within the United States

Most visitors from Washington, D.C. Dulles Intl need to provide a negative COVID-19 test result and/or quarantine to enter Islip Long Island.

COVID-19 testing requirements
Visitors from Washington, D.C. Dulles Intl are not required to present a negative COVID-19 PCR test or antigen result upon entering Islip Long Island.

Quarantine requirements
Visitors from Washington, D.C. Dulles Intl are not required to quarantine after entering Islip Long Island.

Do I need a test to fly back to Dulles Intl from Islip?

Returning to Washington, D.C. Dulles Intl from Islip Long Island

COVID-19 testing requirements
Visitors from Islip Long Island are not required to present a negative COVID-19 PCR test or antigen result upon entering Washington, D.C. Dulles Intl.

Quarantine requirements
Visitors from Islip Long Island are not required to quarantine after entering Washington, D.C. Dulles Intl.

Hide COVID Travel Restrictions for Islip, NY

Destination information for Islip

Things to know before you go - useful duration and weather info for your trip from Dulles Intl to Islip.
Average temperature for June in Islip
80.6 °F
Avg rainfall for June in Islip
3.9 ″

Airports servicing Washington, D.C.

Airports servicing Islip

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