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Cheap flights from District of Columbia to New York from $88

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to New York departing on 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from District of Columbia to New York

Cheap round-trip flights

Southwest Logo
12:50 pm - 9:05 pmDCA-ISP
8h 15m1 stop
Southwest Logo
5:30 am - 11:10 amISP-DCA
5h 40m1 stop
$175Southwest
Find Deal
Tue, Sep 16 - Wed, Sep 17
Southwest Logo
12:50 pm - 9:05 pmDCA-ISP
8h 15m1 stop
Southwest Logo
2:05 pm - 10:00 pmISP-DCA
7h 55m2 stops
$180Southwest
Find Deal
Tue, Sep 16 - Wed, Sep 17
Southwest Logo
6:55 am - 3:15 pmDCA-ISP
8h 20m2 stops
Southwest Logo
2:05 pm - 10:00 pmISP-DCA
7h 55m2 stops
$185Southwest
Find Deal
Tue, Sep 16 - Wed, Sep 17
Frontier Logo
8:28 pm - 10:37 amIAD-ISP
14h 09m1 stop
Frontier Logo
11:37 am - 7:43 pmISP-IAD
8h 06m1 stop
$230Frontier
Find Deal
Thu, Nov 6 - Thu, Nov 13
Frontier Logo
8:28 pm - 10:37 amIAD-ISP
14h 09m1 stop
Frontier Logo
11:37 am - 7:43 pmISP-IAD
8h 06m1 stop
$245Frontier
Find Deal
Thu, Nov 6 - Thu, Nov 13
Frontier Logo
8:59 pm - 9:04 amIAD-ISP
12h 05m1 stop
Frontier Logo
11:40 am - 6:24 pmISP-IAD
6h 44m1 stop
$258Frontier
Find Deal
Thu, Sep 25 - Thu, Oct 2
Logo
8:28 pm - 10:37 amIAD-ISP
14h 09m1 stop
Logo
11:40 am - 8:38 pmISP-IAD
8h 58m2 stops
$262
Find Deal
Thu, Nov 6 - Thu, Nov 13
JetBlue Logo
6:19 am - 3:23 pmDCA-ISP
9h 04m2 stops
JetBlue Logo
11:35 am - 8:54 pmISP-DCA
9h 19m1 stop
$263JetBlue
Find Deal
Tue, Sep 9 - Fri, Sep 12
JetBlue Logo
6:19 am - 3:23 pmDCA-ISP
9h 04m2 stops
JetBlue Logo
11:35 am - 8:54 pmISP-DCA
9h 19m1 stop
$283JetBlue
Find Deal
Wed, Sep 10 - Fri, Sep 12
Logo
8:25 am - 11:19 amIAD-ISP
26h 54m1 stop
Logo
7:33 pm - 4:01 pmISP-IAD
20h 28m2 stops
$357
Find Deal
Sun, Aug 24 - Thu, Aug 28

Frontier flights from District of Columbia to Islip, New York

Our best Frontier deals on District of Columbia to Islip, New York flight tickets
Frontier
Nov 6
IAD8:28 pmWashington, D.C. Dulles Intl
14h 09m
1 stop
ISP10:37 amIslip Long Island
Nov 13
ISP11:37 amIslip Long Island
8h 06m
1 stop
IAD7:43 pmWashington, D.C. Dulles Intl
$230
Find similar
Frontier
Nov 6
IAD8:28 pmWashington, D.C. Dulles Intl
14h 09m
1 stop
ISP10:37 amIslip Long Island
Nov 13
ISP11:37 amIslip Long Island
8h 06m
1 stop
IAD7:43 pmWashington, D.C. Dulles Intl
$245
Find similar
Frontier
Sep 25
IAD8:59 pmWashington, D.C. Dulles Intl
12h 05m
1 stop
ISP9:04 amIslip Long Island
Oct 2
ISP11:40 amIslip Long Island
6h 44m
1 stop
IAD6:24 pmWashington, D.C. Dulles Intl
$258
Find similar

Southwest flights from District of Columbia to Islip, New York

Our best Southwest deals on District of Columbia to Islip, New York flight tickets
Southwest
Sep 16
DCA12:50 pmWashington, D.C. Reagan-National
8h 15m
1 stop
ISP9:05 pmIslip Long Island
Sep 17
ISP5:30 amIslip Long Island
5h 40m
1 stop
DCA11:10 amWashington, D.C. Reagan-National
$175
Find similar
Southwest
Sep 16
DCA12:50 pmWashington, D.C. Reagan-National
8h 15m
1 stop
ISP9:05 pmIslip Long Island
Sep 17
ISP2:05 pmIslip Long Island
7h 55m
2 stops
DCA10:00 pmWashington, D.C. Reagan-National
$180
Find similar
Southwest
Sep 16
DCA6:55 amWashington, D.C. Reagan-National
8h 20m
2 stops
ISP3:15 pmIslip Long Island
Sep 17
ISP2:05 pmIslip Long Island
7h 55m
2 stops
DCA10:00 pmWashington, D.C. Reagan-National
$185
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia to Islip, New York 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, momondo users made 832,500 searches. Data last updated August 12, 2025.
Use the filters below to find and compare flights from District of Columbia to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Tue 9/16

12:50 pm-9:05 pm

1 stop8h 15m

Islip Long Island

Wed 9/17

5:30 am-11:10 am

1 stop5h 40m

$175

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Tue 9/16

12:50 pm-9:05 pm

1 stop8h 15m

Islip Long Island

Wed 9/17

2:05 pm-10:00 pm

2 stops7h 55m

$180

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Tue 9/16

6:55 am-3:15 pm

2 stops8h 20m

Islip Long Island

Wed 9/17

2:05 pm-10:00 pm

2 stops7h 55m

$185

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Thu 11/6

8:28 pm-10:37 am

1 stop14h 09m

Islip Long Island

Thu 11/13

11:37 am-7:43 pm

1 stop8h 06m

$230

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Thu 11/6

8:28 pm-10:37 am

1 stop14h 09m

Islip Long Island

Thu 11/13

11:37 am-7:43 pm

1 stop8h 06m

$245

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Thu 9/25

8:59 pm-9:04 am

1 stop12h 05m

Islip Long Island

Thu 10/2

11:40 am-6:24 pm

1 stop6h 44m

$258

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Thu 11/6

8:28 pm-10:37 am

1 stop14h 09m

Islip Long Island

Thu 11/13

11:40 am-8:38 pm

2 stops8h 58m

$262

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Tue 9/9

6:19 am-3:23 pm

2 stops9h 04m

Islip Long Island

Fri 9/12

11:35 am-8:54 pm

1 stop9h 19m

$263

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Wed 9/10

6:19 am-3:23 pm

2 stops9h 04m

Islip Long Island

Fri 9/12

11:35 am-8:54 pm

1 stop9h 19m

$283

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Sun 8/24

8:25 am-11:19 am

1 stop26h 54m

Islip Long Island

Thu 8/28

7:33 pm-4:01 pm

2 stops20h 28m

$357

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to New York from

How to get the cheapest flight ticket from District of Columbia to Islip, New York

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Islip, New York?

The month of April is, on average, the cheapest month to fly to Islip, New York from District of Columbia, with most prices found around $285. If you aren’t able to travel to Islip, New York during the month of April, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $320.

What is the cheapest day to depart on your flight to Islip, New York?

The cheapest day to depart from District of Columbia to Islip, New York is on a Tuesday. Travelers who choose to depart for Islip, New York on a Tuesday will often find tickets for as low as $296. The most expensive day to fly to Islip, New York is Sunday, with ticket prices averaging around $487.

What is the cheapest time of day to depart on your flight to Islip, New York?

Flying to Islip, New York from District of Columbia in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $337 when looking at flights departing in the afternoon. Flights to Islip, New York are more costly in the morning, with an average ticket price of $377. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest District of Columbia to Islip Long Island flight route?

Fly from Baltimore/Washington to Islip Long Island for the best District of Columbia - Islip Long Island flight prices

What cabin class options are available on District of Columbia to Islip Long Island flights?

There are 1 cabin classes available to choose from on District of Columbia to Islip Long Island flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap District of Columbia to Islip, New York flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Islip, New York

Best Price Found

$88

Fastest flight time

5h 40m

Direct flights

None

Airports in Islip, New York

1 airport
The best one-way flight to Islip, New York from District of Columbia in the past 72 hours is $88. The best round-trip flight deal from District of Columbia to Islip, New York found on momondo in the last 72 hours is $175.
The fastest flight from District of Columbia to Islip, New York takes 5h 40m
There are no direct flights from District of Columbia to Islip, New York. Popular non-direct routes for this connection are Washington, D.C. Dulles Intl Airport - Islip Long Island Airport and Washington, D.C. Reagan-National Airport - Islip Long Island Airport.
There is 1 airport near Islip, New York: Islip Long Island (ISP)
Search flight deals

  • When did momondo last update prices for flights from District of Columbia to Islip Long Island Airport?

    Prices for flights from District of Columbia to Islip Long Island Airport are updated daily.

  • How old do you have to be to fly from District of Columbia to Islip Long Island Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from District of Columbia to Islip Long Island Airport.

  • What documentation or ID do you need to fly to Islip Long Island Airport?

    The travel and health documents you'll need for your trip to Islip Long Island Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Islip Long Island Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from District of Columbia to Islip, New York

Compare and see reviews for airlines that fly from District of Columbia to Islip, New York with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $233Free CancellationRating
8.0
4,246 reviews
Search Southwest flights

Traveling to a place near New York?

Book flights to New York if you plan to visit one of these locations
Montauk
Riverhead
Sag Harbor
Southampton
Amagansett

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Islip?

It is quick and easy to find District of Columbia to Islip flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Islip that suits you.

Can I find flights from District of Columbia to Islip with flexible booking policies on momondo?

All flight searches from District of Columbia to Islip on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from District of Columbia to Islip?

Once you have performed a search for District of Columbia to Islip flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from District of Columbia to Islip right now. Can momondo alert me if prices change?

Yes. momondo can track prices for District of Columbia to Islip flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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