District of Columbia

$258+ Cheap flights from Islip, NY (ISP) to District of Columbia

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — IAD
Dec 23 — Dec 301
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Cheap flight deals from Islip to District of Columbia

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to District of Columbia (USDC). 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 December 18, 2024.

Round-trip from

$381
(Southwest)

One-way from

$258
(Southwest)
From Islip Long Island to District of Columbia
One-way flight from Islip Long Island to District of Columbia

Find flight deals from Islip to District of Columbia

Cheapest flights from Islip to District of Columbia
Explore the most affordable flight options available from Islip to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This Southwest deal was found by Cheapflights users on 12/17. 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 12/1712:10 pmISP - DCA
1 stop10h 50mSouthwest
Wed 12/186:55 amDCA - ISP
1 stop8h 50mSouthwest
Deal found 12/17$656
This JetBlue deal was found by Cheapflights users on 12/16. 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.
Tue 12/1710:45 amISP - DCA
1 stop6h 15mJetBlue
Wed 12/186:00 amDCA - ISP
1 stop6h 51mJetBlue
Deal found 12/16$1,412

Find flights from Islip to District of Columbia within your budget

Customize your flight search to find flights from Islip to District of Columbia 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 2,558,603 searches. Data last updated December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

IslipWashington, D.C.

ISP - DCA

ISPDCA

Islip Long Island

Sun 3/23

12:55 pm-8:20 pm

1 stop7h 25m

Washington, D.C. Reagan-National

Thu 3/27

1:20 pm-10:30 pm

2 stops9h 10m

$381

IslipWashington, D.C.

ISP - DCA

ISPDCA

Islip Long Island

Thu 1/9

9:05 am-4:20 pm

1 stop7h 15m

$258

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Best time to book a flight from Islip to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia 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 District of Columbia

Get recent, data-driven insights about flights from Islip to District of Columbia including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Islip, New York to District of Columbia?

Currently, November is the cheapest month in which you can book a flight from Islip, New York to District of Columbia (average of $299). Flying from Islip, New York to District of Columbia 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 DC?

Find hourly flight availability from Islip to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Islip, New York to District of Columbia as you normally would.

Rainfall in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in District of Columbia 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 District of Columbia when rainfall is around 2.6 in.

Temperature in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to District of Columbia, 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 District of Columbia

Get insights into the airlines that provide service to District of Columbia. 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 District of Columbia. Reviews last updated December 18, 2024.
8.1
Very good
4,848 reviews

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.1
Very good
4,848 reviews
8.1
Very good
4,848 reviews

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Islip to District of Columbia. 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 District of Columbia?

    For a flight from Islip to District of Columbia, you will be flying from Long Island. Islip Long Island (ISP) is just 7.2 mi from the center of the city.

  • Can I find deals for flights from Islip to District of Columbia that include hotel bookings?

    Yes. In addition to deals on Islip to District of Columbia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islip to District of Columbia?

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

  • Can I find deals for business class flights from Islip to District of Columbia?

    Yes. Cheapflights offers flight deals from Islip to District of Columbia 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 District of Columbia?

    Currently, November is the cheapest month in which you can book a flight from Islip, New York to District of Columbia (average of $299). Flying from Islip, New York to District of Columbia 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 District of Columbia

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

Top airline flying from Islip to District of Columbia

Discover the top airline that operate flights from Islip to District of Columbia. 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 2,558,603 searches. Data last updated December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$305Average$408FlexibilityNo cancel feeOn-time63%
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