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Washington, D.C.

$53+ Cheap flights from Islip, NY (ISP) to Washington, D.C. (WAS)

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 12/18. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — WAS
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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Cheap flight deals from Islip to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Washington, D.C. (WAS). 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 November 21, 2024.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$148
(CheapOair)

One-way from

$53
(Cheapflightsfares)
Provider with most accurate pricing for Islip Long Island-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Islip Long Island-Washington, D.C. (WAS) flights.
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From Islip Long Island to Washington, D.C. (WAS)
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One-way flight from Islip Long Island to Washington, D.C. (WAS)
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Find flight deals from Islip to Washington, D.C.

Cheapest flights from Islip to Washington, D.C.
Explore the most affordable flight options available from Islip to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This CheapOair deal was found by Cheapflights users on 11/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/137:18 pmISP - BWI
1 stop18h 36mFrontier
Mon 12/169:20 pmBWI - ISP
1 stop13h 05mFrontier
Deal found 11/20$148
This Southwest deal was found by Cheapflights users on 11/19. 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.
Tue 12/176:25 amISP - BWI
Nonstop1h 20mSouthwest
Wed 12/259:05 pmBWI - ISP
Nonstop1h 10mSouthwest
Deal found 11/19$252
This Mytrip deal was found by Cheapflights users on 11/20. 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 12/63:05 pmISP - BWI
2 stops18h 32mMultiple Airlines
Sun 12/87:20 pmBWI - ISP
2 stops17h 57mMultiple Airlines
Deal found 11/20$471
This Southwest deal was found by Cheapflights users on 11/21. 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.
Mon 12/233:15 pmISP - DCA
1 stop8h 25mSouthwest
Thu 12/261:00 pmDCA - ISP
1 stop9h 10mSouthwest
Deal found 11/21$471
This JetBlue deal was found by Cheapflights users on 11/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/410:45 amISP - DCA
1 stop9h 30mJetBlue
Sat 12/76:00 amDCA - ISP
1 stop6h 51mJetBlue
Deal found 11/20$487

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

Customize your flight search to find flights from Islip to Washington, D.C. 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 2,612,795 searches. Data last updated November 21, 2024.

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Any airport

Fly to

Any airport

Route

Depart

Return

Price

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Fri 12/13

7:18 pm-1:54 pm

1 stop18h 36m

Baltimore/Washington

Mon 12/16

9:20 pm-8:25 pm

1 stop23h 05m

$148

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Thu 12/19

12:10 pm-1:30 pm

Nonstop1h 20m

Baltimore/Washington

Thu 12/26

10:45 pm-11:55 pm

Nonstop1h 10m

$347

IslipWashington, D.C.

ISP - DCA

ISPDCA

Islip Long Island

Wed 12/4

12:10 pm-11:00 pm

1 stop10h 50m

Washington, D.C. Reagan-National

Sat 12/7

10:40 am-7:30 pm

1 stop8h 50m

$481

IslipWashington, D.C.

ISP - DCA

ISPDCA

Islip Long Island

Wed 12/4

10:45 am-8:15 pm

1 stop9h 30m

Washington, D.C. Reagan-National

Sat 12/7

6:00 am-12:51 pm

1 stop6h 51m

$487

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Thu 12/12

7:25 pm-11:23 pm

2 stops27h 58m

Baltimore/Washington

Sun 12/15

7:20 pm-1:17 pm

2 stops17h 57m

$493

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Wed 12/18

10:56 am-5:37 pm

1 stop6h 41m

$53

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Tue 1/21

6:10 am-7:40 am

Nonstop1h 30m

$116

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Mon 12/16

1:57 pm-8:38 am

3 stops18h 41m

$119

IslipWashington, D.C.

ISP - DCA

ISPDCA

Islip Long Island

Thu 12/12

10:45 am-5:00 pm

1 stop6h 15m

$246

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Compare providers for flights from Islip to Washington, D.C.

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Islip to Washington, D.C. in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Islip, New York-Washington, D.C. flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Islip, New York-Washington, D.C. flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Islip, New York-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Islip, New York-Washington, D.C. flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Islip, New York-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Islip to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Islip 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 Islip to Washington, D.C.

Get recent, data-driven insights about flights from Islip to Washington, D.C. including ideal travel times, pricing trends, and more.

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

Currently, November is the cheapest month in which you can book a flight from Islip, New York to Washington, D.C. (average of $299). Flying from Islip, New York to Washington, D.C. in June is currently the most expensive (average of $377). 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 ISP to WAS?

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 November 21, 2024.

When flying from Islip, New York to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 37% versus a flight in the morning.

Rainfall in Washington, D.C. by month

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

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

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

If weather is an important factor for your trip to Washington, D.C., 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated November 21, 2024.
Get a feel of what it's like to fly with Frontier and Southwest from Islip to Washington, D.C. by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,005 reviews
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

JetBlue
7.5
Good
3,389 reviews
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Frontier
6.1
Okay
3,536 reviews
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

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.?

    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 1 airline.

  • What are the cheapest airlines flying from Islip, New York to Washington, D.C. round-trip?

    According to our current data, Frontier ($148), Southwest ($347), and JetBlue ($487) offers the cheapest pricing from Islip, New York to Washington, D.C..

  • What are the cheapest airlines to fly from Islip, New York to Washington, D.C. one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $53. Southwest flights start at $116 while deals on JetBlue start at $246 one-way.

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

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

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

    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..

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

    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.

  • What is the cheapest month to book a flight from Islip, New York to Washington, D.C.?

    Currently, November is the cheapest month in which you can book a flight from Islip, New York to Washington, D.C. (average of $299). Flying from Islip, New York to Washington, D.C. in June is currently the most expensive (average of $377). 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.

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Alternative routes for Islip to Washington, D.C.

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

Discover the top airline that operate flights from Islip to Washington, D.C.. 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 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$305Average$374FlexibilityNo cancel feeOn-time63%
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